Relevant bibliographies by topics / Sedimentary rocks – Uinta Mountains

Academic literature on the topic 'Sedimentary rocks – Uinta Mountains'

Author: Grafiati
Published: 10 December 2022
Last updated: 28 January 2023

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Journal articles on the topic "Sedimentary rocks – Uinta Mountains"

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Munroe, Jeffrey S., Catherine M. Klem, and Matthew F. Bigl. "A lacustrine sedimentary record of Holocene periglacial activity from the Uinta Mountains, Utah, U.S.A." Quaternary Research 79, no. 2 (March 2013): 101–9. http://dx.doi.org/10.1016/j.yqres.2012.12.006.

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AbstractA lake sediment core from the Uinta Mountains of northern Utah was analyzed to constrain the timing of late Holocene periglacial activity. Records of numerous physical properties were converted to time series spanning the past 5300 years using a depth-age model based on four AMS 14C dates. Long-term decreases in organic content and increases in bulk density attest to increasing inputs of clastic sediment. Abundance of mineral P, signaling physical bedrock weathering, reaches maximum values ca. 2900, 2150, and 1400 cal yr BP, coincident with finer median grain size and a shift toward darker red sediment. These peaks, interpreted as signals of periglacial activity, align with pulses of rock glacier activity in Colorado determined from lichenometry. The youngest peak coincides with lichenometric ages previously determined for periglacial deposits upstream from the lake. A pulse of renewed periglacial activity ca. 400 cal yr BP represents the Little Ice Age. The late 20th century witnessed extremely high values of organic matter and biogenic silica, and unprecedented low values of C:N, reflecting greatly enhanced in-lake productivity, likely due to disturbance in the watershed.
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Sprinkel, Douglas. "The Palisades at Sheep Creek Canyon Geological Area." Geosites 1 (January 27, 2022): 1–10. http://dx.doi.org/10.31711/ugap.v1i1.95.

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The Palisades is an impressive ridge within the Sheep Creek Canyon Geological Area—an area nestled on the north flank of the eastern Uinta Mountains not far from Flaming Gorge National Recreation Area. Sheep Creek cuts through the Palisades, as well as the heart of the geological area, to reveal about 800 million years of geology, from ancient environments to the rise and ultimate erosion of the Uinta Mountains. The oldest rocks exposed at the Palisades comprise the upper part of the Neoproterozoic (about 770 million years ago) Uinta Mountain Group, which have been thrusted upon the Mississippian (about 350 million years ago) Deseret Limestone (equivalent to the upper Madison Limestone). That thrust fault and others exposed along the north and south sides of the Palisades are part of the Uinta thrust fault zone, which is responsible for intense folding of both formations. Although the uplift of the Uinta Mountains and related deformation along the Uinta fault zone set the stage for development of the Palisades, it was erosion that revealed and shaped this spectacular feature.
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Cruden, D. M. "The shapes of cold, high mountains in sedimentary rocks." Geomorphology 55, no. 1-4 (September 2003): 249–61. http://dx.doi.org/10.1016/s0169-555x(03)00143-0.

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Mitchelmore, Marlene Dredge, and Frederick A. Cook. "Inversion of the Proterozoic Wernecke basin during tectonic development of the Racklan Orogen, northwest Canada." Canadian Journal of Earth Sciences 31, no. 3 (March 1, 1994): 447–57. http://dx.doi.org/10.1139/e94-041.

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New deep seismic reflection data coupled with regional stratigraphic correlations, drill-hole information, and potential field data are interpreted to provide images of Middle Proterozoic Wernecke Supergroup (meta-)sedimentary layers that were uplifted during tectonic development of the ca. 0.9–1.3 Ga Racklan Orogen in Canada's western Northwest Territories. The reflection data are located at the eastern front of the Mackenzie Mountains portion of the Canadian Cordillera and on the western flank of the Fort Simpson structural trend that is a prominent Proterozoic structure in the subsurface throughout the region. Along three parallel profiles, layers that are correlated with thick Wernecke Supergroup sedimentary rocks produce prominent reflections between about 3.0 and 9.0 s (about 7.5 and 23 km) that were arched prior to deposition of younger Proterozoic (probably Mackenzie Mountains Supergroup) and Phanerozoic sedimentary rocks. The strata are considered to be Wernecke basin sedimentary rocks that were uplifted during deformation associated with the development of the Racklan Orogen.
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Webb, Casey, Michael Jensen, Bart Kowallis, Eric Christiansen, Douglas Sprinkel, and Sam Hudson. "Stratigraphic relationships of the Eocene Duchesne River Formation and Oligocene Bishop Conglomerate, northeastern Utah—pulsed sedimentary response to rollback of the subducted Farallon slab." Geology of the Intermountain West 9 (September 14, 2022): 153–79. http://dx.doi.org/10.31711/giw.v9.pp153-179.

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The Uinta Mountains are an east-west-trending, reverse fault-bounded, basement-cored Laramide uplift. The Eocene Duchesne River Formation and Oligocene Bishop Conglomerate represent late stage, intermontane basin fill of the Uinta Basin in northeastern Utah. Detailed mapping (1:24,000 scale), clast counts in conglomerate beds, description of lithology and stratigraphic contacts, and radiometric dating of pyroclastic fall beds of the Duchesne River Formation and Bishop Conglomerate in the Vernal NW quadrangle in northeastern Utah reveal stratal geometries of middle Cenozoic depositional units, the uplift and unroofing history of the eastern Uinta Mountains, and give evidence for the pulsed termination of Laramide uplift related to rollback of the Farallon slab and lithospheric delamination. These relationships show the continuation of Laramide uplift in this region until after 37.9 Ma and before 34 Ma, an age younger than the previously reported 45 to 40 Ma. The Duchesne River Formation consists of four members: the Brennan Basin, Dry Gulch Creek, Lapoint, and the Starr Flat. A normal unroofing signal is found within the formation with a downward increase in Paleozoic clasts and an upward increase in Proterozoic clasts. The oldest member, the Brennan Basin Member contains 80% to 90% Paleozoic clasts and less than 20% Proterozoic clasts. Conglomerate beds in the progressively younger Dry Gulch Creek, Lapoint, and Starr Flat Members of the Duchesne River Formation show significant increases in Proterozoic clasts (34% to 73%) and a decrease in Paleozoic clasts (27% to 66%). The Bishop Conglomerate overlies the Duchesne River Formation, but shows no clear change in clast composition. In the Duchesne River Formation, the proportion of beds containing fine gravel to boulder-sized clasts decreases significantly with distance from the Uinta uplift, from almost 100% near the source (<0.5 km) to 50% to 20% to the south (10 km). The lower part of the Duchesne River Formation exhibits a fining upward sequence that may represent a lull in tectonic uplift. The fine-grained lithofacies of the Dry Gulch Creek and Lapoint Members of the Duchesne River Formation pinch out within about 1 to 2 km from the Uinta uplift. In this proximal region conglomerates equivalent in age to the Lapoint Member cannot be separated from the younger conglomerates of the Starr Flat Member and are mapped together as one unit. Where the fine-grained lithologies appear farther from the uplift, the Starr Flat Member conglomerates deposited above Lapoint Member siltstones represent a southward progradation of alluvial fans away from the uplifting mountain front. The Starr Flat Member is overlain by the Bishop Conglomerate. These units are similar in sedimentary structure and clast composition and are distinguished by an angular unconformity that developed after 37.9 Ma. Stratigraphic and structural relationships between the Duchesne River Formation and Bishop Conglomerate reveal evidence of at least three episodes of Laramide-age uplift of the Uinta Mountains during the deposition of these formations: (1) deposition of fining upward sequences beginning with a basal coarse-grained unit within the Brennan Basin, Dry Gulch Creek, and Lapoint Members; (2) progradation of alluvial fans to the south form the younger Starr Flat Member resulted from an increase in sediment supply likely associated with renewed uplift; and (3) tilting and truncation of Duchesne River Formation to form the Gilbert Peak erosional surface, and prograding alluvial fans of the Bishop Conglomerate. These episodes of pulsed uplift are possibly the result of dripping lithosphere that occurred during Farallon slab rollback. New 40Ar/39Ar ages of 39.4 Ma from ash beds in the Dry Gulch Creek and Lapoint Members emplaced from Farallon rollback volcanism help to constrain the timing of deposition and uplift. These new ages and other existing radiometric and faunal ages suggest a significant unconformity of as much as 4 m.y. between the Duchesne River Formation and the overlying Bishop Conglomerate, which rangesfrom 34 to 30 Ma in age and show that Laramide uplift continued after 40 Ma in this region.
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Li, Mo, Xiaobing Zhou, Christopher H. Gammons, Mohamed Khalil, and Marvin Speece. "Aeromagnetic and spectral expressions of rare earth element deposits in Gallinas Mountains area, Central New Mexico, USA." Interpretation 6, no. 4 (November 1, 2018): T937—T949. http://dx.doi.org/10.1190/int-2017-0199.1.

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The Gallinas Mountains, located at the junction of Lincoln and Torrance Counties, New Mexico, USA, are a series of alkaline volcanic rocks intruded into Permian sedimentary rocks. The Gallinas Mountains area hosts fluorite and copper as veins containing bastnäsite, whereas deposits of iron skarns and iron replacement are in the area as well. These deposits produce iron. In this study, the multispectral band-ratio method is used for surface mineral recognition, whereas 2D subsurface structure inversion modeling was applied to explore the depth extent of the magnetic ore distribution from aeromagnetic data. Bastnäsite has higher magnetic susceptibility (0.009 SI) than the host rocks and surrounding sedimentary rock. The bastnäsite and iron oxides (magnetite + hematite) can contribute to a positive aeromagnetic anomaly. Results indicate that (1) the positive magnetic anomaly observed at Gallinas Mountains area can be accounted for by a mixture of bastnäsite and iron oxides at a depth of approximately 400 m and a thickness of approximately 13–15 m. The surface of this area is dominated by the hydrothermal alteration associated with iron oxides over the trachyte intrusions as detected by Landsat 8 band-ratio imaging.
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Friedman, R. M., J. W. H. Monger, and H. W. Tipper. "Age of the Bowen Island Group, southwestern Coast Mountains, British Columbia." Canadian Journal of Earth Sciences 27, no. 11 (November 1, 1990): 1456–61. http://dx.doi.org/10.1139/e90-154.

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A new U–Pb date of [Formula: see text] for foliated felsic metavolcanic rocks of the Bowen Island Group, from Mount Elphinstone in the southwesternmost Coast Mountains of British Columbia, indicates that there the age of this hitherto undated unit is early Middle Jurassic. These rocks grade along strike to the north-northwest into a more sedimentary facies, which north of Jervis Inlet contains a probable Sinemurian (Lower Jurassic) ammonite. The Bowen Island Group thus appears to include Lower and Middle Jurassic rocks and to be coeval in part with volcanic rocks of the Bonanza Formation on Vancouver Island to the west and the Harrison Lake Formation within the central Coast Mountains 75 km to the east.
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Buczyński, Sebastian. "Temporal variability of springs in catchment areas located in the Sudeten Mountains." Hydrology Research 49, no. 3 (November 9, 2017): 780–93. http://dx.doi.org/10.2166/nh.2017.229.

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Abstract This paper describes the results of research into the freshwater springs occurring in the crystalline and compact sedimentary rocks in the Sudeten Mountains. The research consisted of three series of measurements taken in the hydrological year 2013 in four test catchments (Machowski Stream, Inflow at the foot of Mount Grodziec, Podgórna, Mostowy Stream). Data analysis indicated that the number of springs, spring discharge and physicochemical properties of the water were subject to significant temporal variation. The temporal variability of the spring density index ranged from 7 to 31%. Temporal variations in the total yield of the springs fluctuated between 34 and 63% and the minimum discharge variability index exceeded 100%. The study indicated that water flow in areas consisting of compact sedimentary rocks such as sandstone and marl is much more diffuse than in areas that are comprised primarily of crystalline rocks, which accounts for a lower yield and a decrease in temporal spring discharge variability. In areas made up of crystalline rocks, the higher yield and the higher spring discharge variability index point to cracks and fissures as the main recharge component, a feature characteristic of aquifers with high conductivity and low storage capacities.
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Chidsey, Thomas, David Eby, and Douglas Sprinkel. "A Breccia Pipe in the Deseret Limestone, South Flank of the Uinta Mountains, Northern Utah." Geosites 1 (March 11, 2020): 1–10. http://dx.doi.org/10.31711/geosites.v1i1.55.

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A breccia pipe is a cylindrical- or irregular-shaped mass of brecciated rock. A breccia consists of broken, angular fragments of rock cemented together by a fine-grained matrix. Hydrothermal breccia pipes form when hydrothermal solutions force their way towards the surface through zones of weakness or fracture zones and naturally break up the rocks in the process, i.e., hydrofracturing; breccia pipes can also form by collapse. Hydrothermal breccia pipes can contain ore deposits and, as will be discussed later, are associated with some large oil and gas accumulations in southeastern Utah.
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WANG, JIALIN, CHAODONG WU, ZHUANG LI, WEN ZHU, TIANQI ZHOU, JUN WU, and JUN WANG. "The tectonic evolution of the Bogda region from Late Carboniferous to Triassic time: evidence from detrital zircon U–Pb geochronology and sandstone petrography." Geological Magazine 155, no. 5 (January 16, 2017): 1063–88. http://dx.doi.org/10.1017/s0016756816001217.

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AbstractField-based mapping, sandstone petrology, palaeocurrent measurements and zircon cathodoluminescence images, as well as detrital zircon U–Pb geochronology were integrated to investigate the provenance of the Upper Carboniferous – Upper Triassic sedimentary rocks from the northern Bogda Mountains, and further to constrain their tectonic evolution. Variations in sandstone composition suggest that the Upper Carboniferous – Lower Triassic sediments displayed less sedimentary recycling than the Middle–Upper Triassic sediments. U–Pb isotopic dating using the LA-ICP-MS method on zircons from 12 sandstones exhibited similar zircon U–Pb age distribution patterns with major age groups at 360–320 Ma and 320–300 Ma, and with some grains giving ages of > 541 Ma, 541–360 Ma, 300–250 Ma and 250–200 Ma. Coupled with the compiled palaeocurrent data, the predominant sources were the Late Carboniferous volcanic rocks of the North Tianshan and Palaeozoic magmatic rocks of the Yili–Central Tianshan. There was also input from the Bogda Mountains in Middle–Late Triassic time. The comprehensive geological evidence indicates that the Upper Carboniferous – Lower Permian strata were probably deposited in an extensional context which was related to a rift or post-collision rather than arc-related setting. Conspicuously, the large range of U–Pb ages of the detrital zircons, increased sedimentary lithic fragments, fluvial deposits and contemporaneous Triassic zircon ages argue for a Middle–Late Triassic orogenic movement, which was considered to be the initial uplift of the Bogda Mountains.
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Dissertations / Theses on the topic "Sedimentary rocks – Uinta Mountains"

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Mustard, Peter Steele Carleton University Dissertation Geology. "Upper proterozoic-lower cambrian sedimentary rocks of the Mount Harper group, Ogilvie mountains, Yukon." Ottawa, 1990.

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Hall, Dwight Lyman 1953. "Stratigraphy and sedimentary petrology of the Mesozoic rocks of the Waterman Mountains, Pima County, Arizona." Thesis, The University of Arizona, 1985. http://hdl.handle.net/10150/558034.

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LaMaskin, Todd Allen. "Stratigraphy, provenance, and tectonic evolution of Mesozoic basins in the Blue Mountains Province, eastern Oregon and western Idaho /." Connect to title online (ProQuest), 2009. http://proquest.umi.com/pqdweb?did=1790314181&sid=2&Fmt=2&clientId=11238&RQT=309&VName=PQD.

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Guan, Wei. "Provenance analysis of Upper Permian-basal Triassic fluviallacustrine sedimentary rocks in the greater Turpan-Junggar Basin, southern Bogda Mountains, NW China." Thesis, Wichita State University, 2011. http://hdl.handle.net/10057/5178.

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The Tian Shan region was identified as the source of Permian fluvial-lacustrine fills in the greater Turpan-Junggar basin. Thin-section petrographic study of thirty-six fine to very coarse lithic arenites from Upper Permian-Basal Triassic Wutonggou low-order cycle suggests both distant Tian Shan and local intrabasinal rift shoulders were sources. Two petrofacies are identified on the basis of QFL composition. Petrofacies A (mean Q2F4L94, Qm2F4Lt94, Qm42P57K1, and Qp0Lv49Ls51) occurs in the lower Wutonggou low-order cycle, which is characterized by repetitive shifts between fluvial and deltaic depositional cycles. Petrofacies B (mean Q26F9L65, Qm17F9Lt74, Qm65P25K10, and Qp13Lv55Ls32) occurs in the upper Wutonggou low-order cycle, which is dominated by deltaic depositional cycles. Abundant mudrock and basaltic lithics in Petrofacies A suggest intrabasinal rift shoulders were the primary source for the lower Wutonggou low-order cycle. During the deposition of lower Wutonggou, the greater Turpan-Junggar Basin was probably composed of highly partitioned grabens and half-grabens, similar to the Quaternary Basin and Range Province of the western U.S. The abrupt increase in quartz and decrease in basaltic lithics, coupled with changes in paleocurrents and depositional style in the upper Wutonggou low-order cycle, suggest a different catchment with a larger drainage fed the Wutonggou lake. The grabens and half-grabens during the deposition of upper Wutonggou were more interconnected, receiving sediments derived from both distant Tian Shan and local rift shoulders. The documented data best support a rift model, but the underlying cause of rifting remains to be examined.
Thesis (M.S.)--Wichita State University, College of Liberal Arts and Sciences, Dept. of Geology.
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Yarnold, John Christopher, and John Christopher Yarnold. "Sedimentologic characteristics and paleogeographic implications of Tertiary sedimentary rocks in the upper plate of the Harcuvar metamorphic core complex, northern Rawhide and Artillery Mountains, Arizona." Diss., The University of Arizona, 1992. http://hdl.handle.net/10150/187560.

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Geologic mapping and analysis of Oligocene-Miocene sedimentary rocks in the upper plate of the Buckskin-Rawhide detachment fault system (west-central Arizona) reveal a complex paleogeographic history during fault displacement, involving shifting sediment-source areas and multiple drainage reversals. Within the study area, four upper-plate fault blocks are capped by homoclinal sedimentary sections that display fanning dip relationships indicating concurrent tilting and sedimentation. Four sedimentary assemblages can be correlated between fault blocks on the basis of lithologic similarity, stratal position, provenance, paleocurrent data, and sparse geochronologic constraints. Detritus within the basal assemblage was derived from the granitic terrane surrounding the northern part of the study area. The overlying lower assemblage contains voluminous quantities of sedimentary breccia that were derived from source areas consisting mainly of Mesozoic and Paleozoic rocks exposed to the south of the study area. Middle-assemblage sediments were deposited by an extensive south-directed stream system that probably flowed off undistended parts of the hanging wall. Upper-assemblage sediments were deposited by a northeast-directed system of broad, shallow streams; these deposits display a variety of clast types, including Tertiary mylonitic rocks that were eroded from the upwarped footwall of the metamorphic core complex. During deposition of these sedimentary rocks, upper-plate sedimentation was intermittently confined to separate half-graben, while at other times rapid rates of aggradation relative to fault-displacement resulted in burial of ridges separating sub-basins. Evaluation of sedimentary breccia bodies contained within the lower assemblage in the Artillery Peak area indicates that r,nany are of rockavalanche origin. Some are sufficiently large to have represented large rock avalanches (that is, sfurzsfroms) at the time of emplacement and display features consistent with descriptions of such lobes. Some rockavalanche deposits interbedded with lacustrine sediments represent initially subaerial lobes that flowed into lakes. These bodies locally "are intruded by substrate-derived injection structures and contaminated by lakebed mud; mud contamination was initially concentrated along the bases of lobes, but affected a progressively greater proportion of the flows with increasing subaqueous runout. Contaminated portions of rockavalanche lobes exhibit features consistent with decreased shear strength, and thoroughly contaminated lobes appear to have transformed into slowmoving, slurry-like flows that experienced internal cycling of debris.
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Brezina, Cynthia A. "The detrital mineral record of Cenozoic sedimentary rocks in the Central Burma Basin : implications for the evolution of the eastern Himalayan orogen and timing of large scale river capture." Thesis, University of St Andrews, 2015. http://hdl.handle.net/10023/6730.

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This study contributes to the understanding of major river evolution in Southeast Asia during the Cenozoic. In order to trace the evolution of a hypothesized palaeo-Yarlung Tsangpo-Irrawaddy River, this work undertakes the first systematic provenance study of detrital minerals from Cenozoic synorogenic fluvial and deltaic sedimentary rocks of the Central Burma Basin, employing a combination of high precision geochronology, thermochronology, and geochemistry analytical techniques on single grain detrital zircon and white mica. The dataset is compared to published isotopic data from potential source terranes in order to determine source provenance and exhumation history from source to sink. A Yarlung Tsangpo-Irrawaddy connection existed as far back as ca. 42 Ma and disconnection occurred at 18–20 Ma, based on provenance changes detected using a combination of U-Pb ages and εHf(t) values on detrital zircons, and ⁴ºAr/³⁹Ar dating on detrital micas. During the Eocene and Oligocene, units are dominated by U-Pb age and high positive εHf(t) values, characteristic of a southern Lhasa Gangdese magmatic arc source. An antecedent Yarlung Tsangpo-Irrawaddy River system formed the major river draining the eastern Himalaya at this time. A significant change in provenance is seen in the early Miocene, where detritus is predominantly derived from bedrock of the eastern Himalayan syntaxis, western Yunnan and Burma, a region drained by the modern Irrawaddy-Chindwin river system characterized by Cenozoic U-Pb ages and negative εHf(t) values. This is attributed to the disconnection of the Yarlung-Irrawaddy River and capture by the proto-Brahmaputra River, re-routing Tibetan Transhimalayan detritus to the eastern Himalayan foreland basin. Re-set zircon fission track ages of 14-8 Ma present in all units is used to infer post-depositional basin evolution related to changes in the stress regime accommodating the continued northward migration of India. The early Miocene initiation of the Jiali-Parlung-Gaoligong-Sagaing dextral shear zone and the continued northward movement of the coupled India-Burma plate aided in focusing deformation inside the syntaxis contributing to the disconnection of the Yarlung Tsangpo-Irrawaddy system, linking surface deformation and denudation with processes occurring at deeper crustal levels.
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Chahboun, Abderrahim. "Les formations sableuses fluviatiles, littorales et eoliennes aux embouchures des oueds tensift, ksob et souss (atlas-atlantique, maroc)." Paris 6, 1988. http://www.theses.fr/1988PA066131.

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L'etude des formations sableuses aux embouchures des oueds tensift, ksob et souss de l'atlas-atlantique (maroc) permet de mettre en evidence les processus de leur mise en place, ainsi que l'origine de leur materiel. Les oueds apportent jusqu'a l'ocean des elements terrigenes (quartz, feldspaths et mineraux lourds). Ces elements sont remanies et melanges aux depots marins. Le stock sedimentaire est redistribue par les actions marines, et principalement une forte derive littorale nord-sud. Ainsi, dans le systeme du tensift, le materiel dunaire evolue sous l'influence des alizes et des vents d'ouest, mais l'activite de ces derniers se revele plus efficace. Dans le systeme de ksob, le materiel dunaire evolue sous l'action principale des alizes. Dans le systeme du souss, la dynamique eolienne se fait sous l'action conjuguee des alizes et des vents d'ouest. Ces evolutions sedimentaires se traduisent par une amelioration du tri, une diminution progressive du grain moyen et des teneurs en carbonates et mineraux lourds, ainsi que par une eolisation croissante des grains quartz.
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Burt, Emelia Anna. "Oxygen isotope studies of some sedimentary and metasedimentary rocks of the central and northern Appalachian Mountains, the Colorado Plateau, and the Ouachita Mountains." Thesis, 1993. https://thesis.library.caltech.edu/7295/1/Burt_ea_1993.pdf.

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Terrigenous sedimentary rocks from the Colorado Plateau show a relatively uniform bulk silicate δ^(18)O of +14.8 with an SEM of 0.32. Shales and calcilutites in this region have a mean bulk silicate δ^(18)O of +17.7 which is significantly heavier than the mean for interbedded sandstones and siltstones. Bulk silicate δ^(18)O is decoupled from carbonate δ^(18)O due to differences in mode of deposition and diagenetic behavior.

Central Appalachian terrigenous sedimentary rocks show a surprisingly uniform bulk silicate δ^(18)O of +14.8 with an SEM of 0.1. The mean bulk silicate δ^(18)O for all shales (+15.2) is only 0.3 per mil heavier than the mean for all sandstones and siltstones (+14.9). The oxygen isotope uniformity of Central Appalachian sedimentary rocks is mainly a primary depositional feature that is the result of thorough, grand-scale mixing of terrigenous sediment in the Appalachian geosyncline, probably involving several cycles of sedimentation, uplift, erosion, and reworking extending over hundreds of millions of years during the Paleozoic era. The bulk silicate δ^(18)O of siltstones and shales shows a significant (P ˂ 0.05) correlation with conodont color alteration index, which is a measure of diagenetic temperature. As a result of isotopic exchange with porewater during diagenesis, the bulk silicate δ^(18)O of shales and siltstones can apparently be lowered by as much as 2.5 to 4.0 per mil. These diagenetic effects contributed to the overall homogeneity of these sedimentary rocks because the shales started out at higher δ^(18)O.

A reconnaissance ^(18)O/^(16)O study of 14 samples of terrigenous sedimentary rocks from the Ouachita Mountains suggests more inherent isotopic variation in these samples, perhaps in part as a result of greater heterogeneity of source regions. Some of the isotopic variation also seems clearly attributable to diagenetic effects. A significant (P ˂ 0.05) correlation was found between mean vitrinite reflectance, also a measure of diagenetic temperature, and the bulk silicate δ^(18)O difference between shale-sandstone pairs in three different sedimentary formations.

Northern Appalachian metasedimentary rocks show a decrease in bulk silicate δ^(18)O at garnet grade and higher. The terrigenous facies metamorphic rocks have been depleted in ^(18)O by about two per mil relative to their unmetamorphosed counterparts in the Central Appalachians, except where they are adjacent to carbonate-rich sections. Carbonate facies metasedimentary rocks are 5 to 6 per mil higher than interbedded terrrigenous facies rocks, but at the margins of that formation there is a distinct lowering of bulk silicate δ^(18)O and carbonate δ^(18)O due to influx of metamorphic hydrothermal fluids from the adjacent terrrigenous rocks. This is attributed to the involvement of isotopically light fluids during metamorphism. Further work is need to elucidate the differences between metamorphic processes in pelitic and calcareous sediments.

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Books on the topic "Sedimentary rocks – Uinta Mountains"

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Nichols, K. M. Petrology and depositional setting of Mississippian rocks associated with an anoxic event at Samak, western Uinta Mountains, Utah ; Petrology and significance of a Mississippian (Osagean-Meramecian) anoxic event, Lakeside Mountains, northwestern Utah. Washington, D.C: U.S. G.P.O., 1991.

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Nichols, K. M. Petrology and depositional setting of Mississippian rocks associated with an anoxic events at Samak, western Uinta Mountains, Utah.: Petrology and significance of a Mississippian (Osagean-Meramecian) anoxic event, lakeside mountains, northwestern Utah. Denver, CO: U.S. Geological Survey, 1992.

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Molenaar, C. M. Middle Cretaceous stratigraphy on the south and east sides of the Uinta Basin, northeastern Utah and northwwestern Colorado. Washington: U.S. G.P.O., 1991.

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Nilsen, Tor Helge. Stratigraphy and sedimentology of the Eocene Tejon Formation, western Tehachapi and San Emigdio mountains, California. Washington: U.S. G.P.O., 1987.

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1930-, Bryant Bruce, ed. Upper Cretaceous and Paleogene sedimentary rocks and isotopic ages of Paleogene tuffs, Uinta Basin, Utah. [Washington, D.C.]: U.S. G.P.O., 1989.

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1930-, Bryant Bruce, and Geological Survey (U.S.), eds. Upper Cretaceous and Paleogene sedimentary rocks and isotopic ages of Paleogene tuffs, Uinta Basin, Utah. [Reston, Va.?]: Dept. of the Interior, U.S. Geological Survey, 1990.

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50 hikes in Utah: Day hikes from the Red Rocks Deserts to the Uinta and Wasatch Mountains. Countryman Press, 2013.

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Stratigraphic and time-stratigraphic cross sections of Phanerozoic rocks, western Uinta Mountains through the San Pitch Mountains-Wasatch Plateau to western San Rafael Swell, Utah (Summit, Wasatch, Utah, Juab, Sanpete, and Emery Counties). Utah Geological Survey, 1994. http://dx.doi.org/10.34191/ofr-214.

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Book chapters on the topic "Sedimentary rocks – Uinta Mountains"

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Nengovhela, Vhuhwavhohau, Maarten J. de Wit, Alan R. Butcher, and Erin Honse. "High-Resolution Petrographical and Chemical Scanning of Karoo Sedimentary Rocks Near Dolerite Sill Contacts Reveals Metamorphic Effects on Shale Porosity." In Origin and Evolution of the Cape Mountains and Karoo Basin, 67–74. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-40859-0_7.

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Maltman, Alex. "Igneous Rocks." In Vineyards, Rocks, and Soils. Oxford University Press, 2018. http://dx.doi.org/10.1093/oso/9780190863289.003.0009.

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Igneous rocks were once molten. This is a simple statement, but it’s exactly what sets them apart from the other two great divisions of rocks: sedimentary and metamorphic. So, deriving from the Latin word for fire—ignis, the same word that gives us ignition—igneous rocks are associated with heat. Some are simply solidified lava, but most originated by slowly cooling below the Earth’s surface. Thanks to erosion through time of the overlying material, such rocks are now widespread at the Earth’s surface and consequently underlie many of the world’s vineyard regions, from Washington State to the mountains of Hungary, from Lodi, California, to the Cape Peninsula of South Africa. Although it gets warmer with depth everywhere across the Earth, generally the weight of the overlying rocks makes the pressure too great to allow melting, so as a rule the rocks below our feet are solid. In some places, however, the heat increases so rapidly that temperatures can reach over 600°C at just a few kilometers below the ground surface, a temperature at which some rocks are molten, even under pressure. The initial melting usually takes place in and below the lower part of the Earth’s crust, but the molten rock then rises, typically to reside tens of kilometers or so below the surface, though less under volcanically active areas. Such depths may seem large to us, but seeing as its well over 6000 kilometers to the center of the Earth, geologically they are pretty close to the surface. In other words, the igneous rocks we now see at the surface did not form incredibly deep in the Earth’s interior; they were nowhere near Earth’s core, as some writings claim. We call this underground molten material magma. People seem to like the word. Not only does it appear on wine labels, but it is also the name of a number of wine shops, bistros, and various drinks. It exists in the Earth in magma chambers. It would be simplistic to picture these as some sort of enormous underground caves filled with liquid rock: there may be patches that are wholly liquid, but almost certainly there will be plenty of solid matter, minerals that are below their melting point.
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Searle, Mike. "Mapping the Geology of Everest and Makalu." In Colliding Continents. Oxford University Press, 2013. http://dx.doi.org/10.1093/oso/9780199653003.003.0013.

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There are few places in the world where a geologist can actually take a look at the rocks and structures 5 or 6 kilometres down beneath the Earth’s surface. The opposing forces of nature—the uplift of rocks towards the Earth’s surface and their erosion and removal—usually balance each other out, at least roughly. It is only where the rate of uplift of rocks greatly exceeds erosion that high mountains are built. This is precisely why the Himalaya are so unique to geologists studying mountain-building processes. The Himalaya is an active mountain range: the plate convergence rates are high, uplift rates are extremely high, and glacial and fluvial erosion has carved deep channels in between the mountains. By walking and climbing all around Everest we can actually map and study the rocks in three dimensions, which elsewhere, beneath the Tibetan Plateau for example, remain buried below the Earth’s surface. After the Survey of India discovered that Mount Everest was the highest mountain in the world, a pioneering expedition set out to fly across the summit and take photographs. On 3 April 1933 a Houston-Weston biplane piloted by Lord Clydesdale flew across the summit and took the first photos of the mountain. Clydesdale wrote: ‘We were in a serious position. The great bulk of Everest was towering above us to the left, Makalu down-wind to the right and the connecting range dead ahead, with a hurricane wind doing its best to carry us over and dash us on the knife-edge side of Makalu.’ The earliest geologists to study the structure of Mount Everest, A. M. Heron and Noel Odell, both noted the apparent conformity of strata with sedimentary rocks on top of the mountain lying above the more metamorphosed rocks around the base In his 1965 paper on the structure of Everest, Lawrence Wager wrote: ‘It never ceases to surprise the writer that the highest point of the Earth’s surface is composed of sedimentary rocks which are relatively flat-lying and but little metamorphosed.’
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Searle, Mike. "Around the Bend: Nanga Parbat, Namche Barwa." In Colliding Continents. Oxford University Press, 2013. http://dx.doi.org/10.1093/oso/9780199653003.003.0015.

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From the geological mapping, structural, and metamorphic investigations along the main Himalayan Range from Zanskar in the west through the Himachal Pradesh and Kumaon regions of India and along the whole of Nepal to Sikkim, a similar story was emerging. The overall structure and distribution of metamorphic rocks and granites was remarkably similar from one geological profile to the next. The Lesser Himalaya, above the Main Boundary Thrust was composed of generally older sedimentary and igneous rocks, unaffected by the young Tertiary metamorphism. Travelling north towards the high peaks, the inverted metamorphism along the Main Central Thrust marked the lower boundary of the Tertiary metamorphic rocks formed as a result of the India–Asia collision. The large Himalayan granites, many forming the highest peaks, lay towards the upper boundary of the ‘Greater Himalayan sequence’. North of this, the sedimentary rocks of the Tethyan Himalaya crop out above the low-angle normal fault, the South Tibetan Detachment. The northern ranges of the Himalaya comprise the sedimentary rocks of the northern margin of India. The two corner regions of the Himalaya, however, appeared to be somewhat different. The Indian plate has two major syntaxes, where the structural grain of the mountains swings around through ninety degrees: the western syntaxis, centred on the mountain of Nanga Parbat in Pakistan, and the eastern syntaxis, centred on the mountain of Namche Barwa in south-east Tibet. Nanga Parbat (8,125 m) is a huge mountain massif at the north-western end of the great Himalayan chain. It is most prominent seen from the Indus Valley and the hills of Kohistan to the west, where it seems to stand in glorious isolation, ringed by the deep gorges carved by the Indus and Astor Rivers, before the great wall of snowy peaks forming the Karakoram to the north.
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Nevle, Richard J., Steven Nightingale, and Mattias Lanas. "Granite." In The Paradise Notebooks, 11–14. Cornell University Press, 2022. http://dx.doi.org/10.7591/cornell/9781501762697.003.0003.

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This chapter discusses how granite is the geologic backbone of the Sierra Nevada. The discovery of photosynthesis by primitive microorganisms had consequences: it transformed Earth's early atmosphere into an oxygenated, caustic pall that could weather rocks into dust with unprecedented efficiency. Dust is where granite begins. Such dust settles on the seafloor in thick, spongy blankets of sediment whose pores cumulatively hold small oceans of water, which with time is bound to minerals as sediment hardens first to sedimentary rock. Bodies of solid granite, when with time they rise to the surface by the action of tectonic events or slow mantle churnings, make great spines of mountains like the Sierra Nevada.
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Craddock, John P., David H. Malone, Alex Konstantinou, John Spruell, and Ryan Porter. "Calcite twinning strains associated with Laramide uplifts, Wyoming Province." In Tectonic Evolution of the Sevier-Laramide Hinterland, Thrust Belt, and Foreland, and Postorogenic Slab Rollback (180–20 Ma). Geological Society of America, 2022. http://dx.doi.org/10.1130/2021.2555(06).

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ABSTRACT We report the results of 167 calcite twinning strain analyses (131 limestones and 36 calcite veins, n = 7368 twin measurements)t from the Teton–Gros Ventre (west; n = 21), Wind River (n = 43), Beartooth (n = 32), Bighorn (n = 32), and Black Hills (east; n = 11) Laramide uplifts. Country rock limestones record only a layer-parallel shortening (LPS) strain fabric in many orientations across the region. Synorogenic veins record both vein-parallel shortening (VPS) and vein-normal shortening (VNS) fabrics in many orientations. Twinning strain overprints were not observed in the limestone or vein samples in the supracrustal sedimentary veneer (i.e., drape folds), thereby suggesting that the deformation and uplift of Archean crystalline rocks that form Laramide structures were dominated by offset on faults in the Archean crystalline basement and associated shortening in the midcrust. The twinning strains in the pre-Sevier Jurassic Sundance Formation, in the frontal Prospect thrust of the Sevier belt, and in the distal (eastern) foreland preserve an LPS oriented approximately E-W. This LPS fabric is rotated in unique orientations in Laramide uplifts, suggesting that all but the Bighorn Mountains were uplifted by oblique-slip faults. Detailed field and twinning strain studies of drape folds identified second-order complexities, including: layer-parallel slip through the fold axis (Clarks Fork anticline), attenuation of the sedimentary section and fold axis rotation (Rattlesnake Mountain), rotation of the fold axis and LPS fabric (Derby Dome), and vertical rotations of the LPS fabric about a horizontal axis with 35% attenuation of the sedimentary section (eastern Bighorns). Regional cross sections (E-W) across the Laramide province have an excess of sedimentary veneer rocks that balance with displacement on a detachment at 30 km depth and perhaps along the Moho discontinuity at 40 km depth. Crustal volumes in the Wyoming Province balance when deformation in the western hinterland is included.
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Stevens, Calvin H., and Paul Stone. "Mississippian Sedimentary Facies Patterns in East-Central California and Implications for Development of the Permian Last Chance Thrust." In Late Paleozoic and Early Mesozoic Tectonostratigraphy and Biostratigraphy of Western Pangea, 72–86. SEPM (Society for Sedimentary Geology), 2022. http://dx.doi.org/10.2110/sepmsp.113.01.

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Mississippian sedimentary facies belts in east-central California, occurring primarily in the autochthon (lower plate) of the Last Chance Thrust, are consistently oriented in a northeast–southwest direction. The boundary of one belt is marked by the depositional limit of the Osagean to Meramecian Santa Rosa Hills Limestone; a second belt farther to the northwest is bordered by the erosional truncation of the Kinderhookian to Osagean Tin Mountain Limestone. Two additional facies belts, both in the Meramecian to Chesterian Kearsarge Formation, also are present in the area; one near Jackass Flats is marked by the presence of limestone and quartzite olistoliths, and the other in the Last Chance Range includes abundant chert–pebble conglomerates. These two facies of the Kearsarge Formation also occur to the southwest at and near Mazourka Canyon in the allochthon (upper plate) of the Last Chance Thrust. The great similarity and near alignment of these facies belts in both the allochthon and the autochthon can be explained by clockwise rotation of ~55° of the allochthon around a pivot point in the west-central Inyo Mountains. In this model, displacement on the Last Chance Thrust increases from zero at the pivot point to 75 km for rocks exposed in the northern White Mountains. Reconstruction of the paleogeography suggests that the Last Chance Thrust is not part of a major fold and thrust belt but is a major structure limited to a relatively small area along the continental margin where the leading edge of an allochthonous terrane (possibly the Northern Sierra Terrane) impinged against the North American plate.
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Fleming*, Zachariah, Terry Pavlis*, and Ghislain Trullenque*. "Unraveling the multi-phase history of southern Death Valley geology." In Field Excursions from Las Vegas, Nevada: Guides to the 2022 GSA Cordilleran and Rocky Mountain Joint Section Meeting, 67–83. Geological Society of America, 2022. http://dx.doi.org/10.1130/2022.0063(04).

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ABSTRACT This field trip is designed to highlight recent findings in regard to the tectonic history of the southern Death Valley region. During the first day, stops will take place in the Ibex Hills and adjacent Ibex Pass area. These stops were chosen to emphasize recent work that supports multiple phases of extension in the region, and is recorded by the interactions of complexly overprinted normal faults. Mapping of the Ibex Hills revealed an older set of normal faults that have a down-to-the-SW sense of movement and are cross-cut by down-to-the-NW style normal faults. Additionally, the Ibex Pass basin poses a number of questions regarding its stratigraphy and how it relates to the timing and kinematics of the region. Multiple stops within the basin will show the variation of volcanic and sedimentary units across Ibex Pass. The second day of the field trip is focused more so on the more recent transtensional and strike-slip history of southern Death Valley. In particular, recent mapping has correlated features in the Avawatz and Owlshead Mountains that indicate ~40k m of offset along the Southern Death Valley Fault Zone (SDVFZ). Stops will take place along traces of the SDVFZ in the Avawatz Mountains and the Noble Hills. The final stop of the trip is in the Mormon Point turtleback, where the implications of the SDVFZ offset are discussed, alongside the metamorphic rocks at the stop, suggesting the restoration of the Panamint Range partially atop the Black Mountains.
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Kelley, Shari A., Kirt A. Kempter, William C. McIntosh, Florian Maldonado, Gary A. Smith, Sean D. Connell, Daniel J. Koning, and Jennifer Whiteis. "Syndepositional deformation and provenance of Oligocene to Lower Miocene sedimentary rocks along the western margin of the Rio Grande rift, Jemez Mountains, New Mexico." In New Perspectives on Rio Grande Rift Basins: From Tectonics to Groundwater. Geological Society of America, 2013. http://dx.doi.org/10.1130/2013.2494(05).

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Cahoon†, Emily B., Martin J. Streck†, and Mark Ferns†. "Flood basalts, rhyolites, and subsequent volcanism of the Columbia River magmatic province in eastern Oregon, USA." In From Terranes to Terrains: Geologic Field Guides on the Construction and Destruction of the Pacific Northwest, 301–52. Geological Society of America, 2021. http://dx.doi.org/10.1130/2021.0062(08).

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ABSTRACT The Miocene Columbia River Basalt Group (CRBG) is the youngest and smallest continental flood basalt province on Earth. This flood basalt province is a succession of compositionally diverse volcanic rocks that record the passage of the Yellowstone plume beneath eastern Oregon. The compositionally and texturally varied suite of volcanic rocks are considered part of the La Grande–Owyhee eruptive axis (LOEA), an ~300-km-long, north-northwest–trending, Middle Miocene to Pliocene volcanic belt that extends along the eastern margin of the Columbia River flood basalt province. Volcanic rocks erupted from and preserved within the LOEA form an important regional stratigraphic link between the flood basalt–dominated Columbia Plateau to the north, the north and bimodal basalt-rhyolite volcanic fields of the Snake River Plain to the east, the Owyhee Plateau to the south, and the High Lava Plains to the south and east; the latter two have time transgressive rhyolite centers that young to the east and west, respectively. This field-trip guide details a four-day geologic excursion that will explore the stratigraphic and geochemical relationships among mafic rocks of the CRBG and coeval and compositionally diverse silicic rocks associated with the early trace of the Yellowstone plume and High Lava Plains in eastern Oregon. The trip on Day 1 begins in Portland then traverses across the western axis of the Blue Mountains, highlighting exposures of the widespread, Middle Miocene Dinner Creek Welded Tuff and aspects of the Picture Gorge Basalt lava flows and northwest-striking feeder dikes situated in the central part of the CRBG province. Travel on Day 2 progresses eastward toward the eastern margin of the LOEA, examining a transition linking the Columbia River Basalt province with a northwestward-younging magmatic trend of silicic volcanism of the High Lava Plains in eastern Oregon. Initial field stops on Day 2 focus on the volcanic stratigraphy northeast of the town of Burns, which includes regionally extensive Middle to Late Miocene ash-flow tuffs and lava flows assigned to the Strawberry Volcanics. Subsequent stops on Day 2 examine key outcrops demonstrating the intercalated nature of Middle Miocene tholeiitic CRBG flood basalts, temporally coeval prominent ash-flow tuffs, and “Snake River–type” large-volume rhyolite lava flows cropping out along the Malheur River. The Day 3 field route navigates to southern parts of the LOEA, where CRBG rocks are associated in space and time with lesser known and more complex silicic volcanic stratigraphy forming Middle Miocene, large-volume, bimodal basalt-rhyolite vent complexes. Key stops will provide a broad overview of the structure and stratigraphy of the Middle Miocene Mahogany Mountain caldera and of the significance of intercalated sedimentary beds and Middle to Late Miocene calc-alkaline lava flows of the Owyhee basalt. Initial stops on Day 4 will highlight exposures of Middle to Late Miocene silicic ash-flow tuffs, rhyolite domes, and calc-alkaline lava flows overlying the CRBG across the northern and central parts of the LOEA. The later stops on Day 4 examine more silicic lava flows and breccias that are overlain by early CRBG-related rhyolite eruptions. The return route to Portland on Day 4 traverses the Columbia River gorge westward from Baker City. The return route between Baker and Portland on Day 4 follows the Columbia River gorge and passes prominent basalt outcrops of large volume tholeiitic flood lavas of the Grande Ronde, Wanapum, and Saddle Mountains Formations of the CRBG. These sequences of basaltic and basaltic andesite lavas are typical of the well-studied flood basalt dominated Columbia Plateau, and interbedded silicic and calc-alkaline lavas are conspicuously absent. Correlation between the far-traveled CRBG lavas and calcalkaline and silicic lavas considered during the excursion relies on geochemical fingerprinting and dating of the mafic flows and dating of sparse intercalated ashes.
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Conference papers on the topic "Sedimentary rocks – Uinta Mountains"

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Denison, Frank E. "PRE-AND POST-MODELO FOLDING OF SEDIMENTARY ROCKS IN THE EASTERN SANTA MONICA MOUNTAINS, SOUTHERN CALIFORNIA." In 116th Annual GSA Cordilleran Section Meeting - 2020. Geological Society of America, 2020. http://dx.doi.org/10.1130/abs/2020cd-345801.

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Pellerin, Denis, Alaide M. Dura˜o, Jose´ E. F. P. Jardim, Carlos Pimenta, and Kazumi Miura. "Horizontal Directional Drilling as a Solution for Crossing of Ridges in the Serrana Province, Mato Grosso, Brazil." In 2002 4th International Pipeline Conference. ASMEDC, 2002. http://dx.doi.org/10.1115/ipc2002-27190.

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The crossing of a series of high, parallel, elongated and with steep scarp mountains in the Serrana Province, between Ca´ceres and Cuiaba´, Mato Grosso State, Brazil, constituted a great technical challenge for implementation of the Bolivia - Mato Grosso gas pipeline. Due to environmental preservation, the gas pipeline could not cross the crest of some of these mountains using conventional surface methods and the alternative of surrounding the mountains would have caused an extended additional path, with appreciable additional cost. The economically viable alternative was the horizontal directional drilling through the most critical mountains: Piraputanga Ridge with 850m, Cachoeirinha Ridge with 943m and Palmeiras Ridge with 867m. One of the difficulties was the drilling of the very compact and abrasive Alto Paraguay Group Proterozoic low metamorphic rocks intercalated with clastic sedimentary rocks. The horizontal directional hole intersects in high angles the strongly dipping layers of rocks. The layered sequences of sandstone capped by siltstones provide the aquifer condition to Raizama Fm. with strong water flow. To prevent any environmental damage, the conventional hole design was modified, which allowed the drilling with water, instead of bentonitic drilling fluid. The horizontal directional drilling consisted of a pilot hole with 10.14 inches diameter, drilled with down hole motor and an electromagnetic steering system. The first enlargement of the pilot hole went to 22” diameter and the last one to 30” using special reamer tools. The pipes of the Bolivia - Mato Grosso gas pipeline have 18” diameter, with a special line coating to prevent damages during pulling in contact with rocks. No problems occurred during the pulling operation of the pipes along the holes. The proposed three horizontal directional holes were very successful and the projected designs of the well were fully achieved, with a very small offset in the forecasted exit points. After long weeks of hole opening and preparatory works, all three pulling operations of the pipestrings along the holes went very smoothly.
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LaMaskin, Todd A., Jonathan A. Rivas, John A. Russell, Joshua J. Schwartz, and David L. Barbeau. "TESTING EXOTIC COLLISION VERSUS ENDEMIC RE-ACCRETION MODELS FOR LATE JURASSIC (NEVADAN) DEFORMATION IN THE KLAMATH MOUNTAINS PROVINCE: AGE AND PROVENANCE OF SEDIMENTARY ROCKS IN THE RATTLESNAKE CREEK TERRANE." In 115th Annual GSA Cordilleran Section Meeting - 2019. Geological Society of America, 2019. http://dx.doi.org/10.1130/abs/2019cd-329256.

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Montes, Edward Francisco Oliveros. "Unprovoked Errors in Geotechnical Monitoring Activities in an RoW." In ASME 2015 International Pipeline Geotechnical Conference. American Society of Mechanical Engineers, 2015. http://dx.doi.org/10.1115/ipg2015-8518.

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The Camisea Pipeline Transmission System (PTS), owned by Transportadora de Gas del Perú (TgP) in Peru, consists of two parallel pipelines, a Natural Gas (NG) pipeline and a Liquefied Natural Gas (LNG) pipeline. The NG pipeline is 834 km in length, including a 105 km loop. The LNG pipeline is 557 km in length. The first 210 km, are defined as having Amazonian geotechnical characteristics, with the presence of sedimentary and metamorphic rocks and a deposit of materials that are easily altered, which are associated with the transition between the Amazon plain and the Andes mountains. The area between km 210 and km 420 is defined as a mountainous sector with materials having better mechanical properties while the section between km 420 and km 730 located in the coastal sector and has erosive processes such as those associated with wind erosion, seismic activity, alluvial deposits, etc. Due to the variety of geological and geotechnical circumstances of the TgP’s RoW, its PTS incorporates many types of geotechnical monitoring in order to maintain and increase the reliability and integrity of the system. In several sectors not all of the types of monitoring are applicable. Some types of monitoring are: inclinometers and piezometers, aerial surveillance, patrolling, strain gauges (SG), topographic, GIS images (satellite, laser, radar, etc.), culverts, geotechnical optical fiber, accelerometer stations, etc. This article describes some unprovoked errors that can occur in a complex operation (in terms of logistics, geological, geotechnical and socially), in the development of geotechnical monitoring activities of an RoW. Some of the errors that can occur are: • Unacceptable photographic record through aerial surveillance; • Damage to the coating during topographic verification; • Field reports with incorrect data; • Incorrect SG records; • Improper placement of equipment over the pipeline; • Incorrect records in the GIS database; • Errors in the topographical record; and • Inexperience of monitoring staff, etc. However, occurrence of the above-mentioned errors has been lessened through improved operating procedures. These procedures are based on discussions from the various “lessons learned” sessions, which improved: • the appropriate recording of conditions identified in the field; • the labor climate; • crosswise communication between the different areas; and • the preventive approach within the operation of the PTS.
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Reports on the topic "Sedimentary rocks – Uinta Mountains"

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Paradis, S., W. A. Turner, M. Coniglio, N. Wilson, and J L Nelson. Stable and radiogenic isotopic signatures of mineralized Devonian carbonate rocks of the northern Rocky Mountains and the Western Canada Sedimentary Basin. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 2006. http://dx.doi.org/10.4095/222922.

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Peter, J. M., and M. G. Gadd. Introduction to the volcanic- and sediment-hosted base-metal ore systems synthesis volume, with a summary of findings. Natural Resources Canada/CMSS/Information Management, 2022. http://dx.doi.org/10.4095/328015.

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This volume presents results of research conducted during phase 5 of the Volcanic- and Sedimentary-hosted Base Metals Ore Systems project of the Geological Survey of Canada's Targeted Geoscience Initiative (TGI) program. The papers in this volume include syntheses and primary scientific reports. We present here a synopsis of the findings during this TGI project. Research activities have addressed several mineral deposit types hosted in sedimentary rocks: polymetallic hyper-enriched black shale, sedimentary exhalative Pb-Zn, carbonate-hosted Pb-Zn (Mississippi Valley-type; MVT), and fracture-controlled replacement Zn-Pb. Other carbonate-hosted deposits studied include a magnesite deposit at Mount Brussilof and a rare-earth element-F-Ba deposit at Rock Canyon Creek, both of which lack base metals but are spatially associated with the MVT deposits in the southern Rocky Mountains. Volcanogenic massive-sulfide deposits hosted in volcanic and mixed volcanic-sedimentary host rock settings were also examined. Through field geology, geochemical (lithogeochemistry, stable and radiogenic isotopes, fluid inclusions, and mineral chemistry), and geophysical (rock properties, magnetotelluric, and seismic) tools, the TGI research contributions have advanced genetic and exploration models for volcanic- and sedimentary-hosted base-metal deposits and developed new laboratory, geophysical, and field techniques to support exploration.
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Gadd, M. G., J. M. Peter, T A Fraser, and D. Layton-Matthews. Paleoredox and lithogeochemical indicators of the environment of formation and genesis of the Monster River hyper-enriched black shale showing, Yukon. Natural Resources Canada/CMSS/Information Management, 2022. http://dx.doi.org/10.4095/328004.

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Northern Yukon hosts occurrences of Middle Devonian hyper-enriched black shale (HEBS) Ni-Mo-Zn-platinum-group element-Au-Re mineralization, including the Monster River showing in the Ogilvie Mountains. This mineralization has been documented predominantly in the Paleozoic Richardson trough; however, the Monster River showing is atypical, occurring within the Blackstone trough, more than 200 km to the west on the southern margin of the Yukon block. The ambient paleoredox conditions of the marine water column and sediments may be primary controlling factors in HEBS formation. We use major and trace element lithogeochemistry to better understand ambient paleoenvironmental redox conditions through the application of robust redox proxies to HEBS mineralization and host rocks. Uniformly negative Ce anomalies (0.6-0.9) indicate that the water column was predominantly suboxic throughout the deposition interval, even during HEBS mineralization. Although there is a strong terrigenous influence on the rare earth element-yttrium (REE-Y) abundances of the sedimentary rocks, superchondritic Y/Ho ratios (&amp;gt;27) indicate that seawater contributed REE-Y to the host rocks and HEBS. High (&amp;gt;10) authigenic Mo/U ratios indicate that a Fe-Mn particulate shuttle operated in the water column; this is corroborated by negative Ce anomalies and high Y/Ho ratios. The data indicate that metalliferous sedimentary rocks formed by hydrogenous metal enrichment (e.g. Ni, Mo, Pt) caused by ferromanganese oxyhydroxide particulate shuttling as chemical sediments; moreover, the REE- and Mo-based paleoenvironmental indicators suggest a complexly redox-stratified depositional environment with an abundant supply of metals, metalloids, and sulfur.
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Stratigraphic and time-stratigraphic cross sections of Phanerozoic rocks along line C-C', Uinta and Piceance basin area, southern Uinta Mountains to northern Henry Mountains, Utah. US Geological Survey, 1991. http://dx.doi.org/10.3133/i2184c.

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Petrology and depositional setting of Mississippian rocks associated with an anoxic event at Samak, western Uinta Mountains, Utah. Petrology and significance of a Mississippian (Osagean-Meramecian) anoxic event, Lakeside Mountains, northwestern Utah. US Geological Survey, 1991. http://dx.doi.org/10.3133/b1787st.

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Divisions of potential fracture permeability, based on distribution of structures and lineaments, in sedimentary rocks of the Rocky Mountains-High Plains region, Western United States. US Geological Survey, 1986. http://dx.doi.org/10.3133/wri854091.

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Composite measured section showing nonopaque heavy minerals in sedimentary rocks of middle Proterozoic to late Tertiary age in the central Rocky Mountains, southwest Wyoming and northwest Colorado. US Geological Survey, 1990. http://dx.doi.org/10.3133/i2145.

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Divisions of potential fracture permeability, based on distribution of structures and linear features in sedimentary rocks, northern Great Plains-Rocky Mountains region of Montana, North Dakota, South Dakota, Wyoming, and northern Nebraska. US Geological Survey, 1986. http://dx.doi.org/10.3133/i1687.

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Upper Cretaceous and Paleogene sedimentary rocks and isotopic ages of Paleogene tuffs, Uinta Basin, Utah. Ages of late Paleogene and Neogene tuffs and the beginning of rapid regional extension, eastern boundary of the Basin and Range Province near Salt Lake City, Utah. US Geological Survey, 1989. http://dx.doi.org/10.3133/b1787jk.

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