Relevant bibliographies by topics / Rocks – Analysis – Colorado

Academic literature on the topic 'Rocks – Analysis – Colorado'

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Published: 10 December 2022
Last updated: 28 January 2023

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Journal articles on the topic "Rocks – Analysis – Colorado"

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Watson, Ken, Lawrence C. Rowan, Timothy L. Bowers, Carmen Anton‐Pacheco, Pablo Gumiel, and Susanne H. Miller. "Lithologic analysis from multispectral thermal infrared data of the alkalic rock complex at Iron Hill, Colorado." GEOPHYSICS 61, no. 3 (May 1996): 706–21. http://dx.doi.org/10.1190/1.1443998.

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Airborne thermal‐infrared multispectral scanner (TIMS) data of the Iron Hill carbonatite‐alkalic igneous rock complex in south‐central Colorado are analyzed using a new spectral emissivity ratio algorithm and confirmed by field examination using existing 1:24 000‐scale geologic maps and petrographic studies. Color composite images show that the alkalic rocks could be clearly identified and that differences existed among alkalic rocks in several parts of the complex. An unsupervised classification algorithm defines four alkalic rock classes within the complex: biotitic pyroxenite, uncompahgrite, augitic pyroxenite, and fenite + nepheline syenite. Felsic rock classes defined in the surrounding country rock are an extensive class consisting of tuff, granite, and felsite, a less extensive class of granite and felsite, and quartzite. The general composition of the classes can be determined from comparisons of the TIMS spectra with laboratory spectra. Carbonatite rocks are not classified, and we attribute that to the fact that dolomite, the predominant carbonate mineral in the complex, has a spectral feature that falls between TIMS channels 5 and 6. Mineralogical variability in the fenitized granite contributed to the nonuniform pattern of the fenite‐nepheline syenite class. The biotitic pyroxenite, which resulted from alteration of the pyroxenite, is spatially associated and appears to be related to narrow carbonatite dikes and sills. Results from a linear unmixing algorithm suggest that the detected spatial extent of the two mixed felsic rock classes was sensitive to the amount of vegetation cover. These results illustrate that spectral thermal infrared data can be processed to yield compositional information that can be a cost‐effective tool to target mineral exploration, particularly in igneous terranes.
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Abu-Hejleh, Naser M., Michael W. O'Neill, Dennis Hanneman, and William J. Attwooll. "Improvement of the Geotechnical Axial Design Methodology for Colorado's Drilled Shafts Socketed in Weak Rocks." Transportation Research Record: Journal of the Transportation Research Board 1936, no. 1 (January 2005): 100–107. http://dx.doi.org/10.1177/0361198105193600112.

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Drilled shaft foundations embedded in weak rock formations support a large percentage of bridges in Colorado. Since the 1960s, empirical methods that entirely deviate from the AASHTO design methods have been used for the axial geotechnical design of these shafts. The margin of safety and expected shaft settlement are unknown in these empirical methods. Load tests on drilled shafts provide the most accurate design and research data for improvement of the design methods. Four Osterberg axial load tests were performed in Denver on drilled shafts embedded in soil-like claystone, very hard sandy claystone, and extremely hard clayey sandstone. An extensive program of simple geotechnical tests was performed at the load test sites, including standard penetration tests (SPT), unconfined compressive strength tests (UCT), and pressuremeter tests (PMT). Information on the construction and materials of the test shafts was documented, followed by thorough analysis of all test results. Conservative equations were suggested to predict the unconfined compressive strength and mass stiffness of weak rocks from SPT and PMT data. Colorado Department of Transportation (CDOT) and AASHTO–FHWA design methods for drilled shafts were thoroughly assessed. Design equations to predict the shaft ultimate unit base resistance ( qmax), side resistance ( fmax), and an approximate load–settlement curve as a function of the results of simple geotechnical tests were developed. The qualifications and limitations for using these design methods are presented (e.g., construction procedure, field conditions). Finally, a detailed strategic plan to identify the most appropriate design methods per LRFD for Colorado's drilled shafts was developed.
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Kadel-Harder, Irene M., Paul G. Spry, Audrey L. McCombs, and Haozhe Zhang. "Identifying pathfinder elements for gold in bulk-rock geochemical data from the Cripple Creek Au–Te deposit: a statistical approach." Geochemistry: Exploration, Environment, Analysis 21, no. 1 (October 26, 2020): geochem2020–048. http://dx.doi.org/10.1144/geochem2020-048.

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The Cripple Creek alkaline igneous rock-related, low-sulfidation epithermal gold telluride deposit, Colorado, is hosted in the 10 km wide Oligocene alkaline volcanic Cripple Creek diatreme in Proterozoic rocks. Gold occurs as native gold, Au-tellurides, and in the structure of arsenian pyrite, in potassically altered high-grade veins, and as disseminations in the host rocks.Correlation coefficients, principal component analysis, hierarchical cluster analysis and random forests were used to analyse major and trace element compositions of 995 rock samples primarily from low-grade gold mineralization in drill core from three currently operating pits (Wild Horse Extension, Globe Hill and Schist Island) in the northwestern part of the Cripple Creek diatreme. These methods suggest that Ag, As, Bi, Te and W are the best pathfinders to gold mineralization in low-grade disseminated ore. Although Mo correlates with gold in other studies and is spatially related to gold veins, molybdenite post-dated the formation of gold and is likely related to a late-stage porphyry overprint. These elements, in conjunction with mineralogical studies, indicate that tellurides, fluorite, quartz, carbonates, roscoelite, tennantite-tetrahedrite, pyrite, sphalerite, muscovite, monazite, bastnäsite and hübnerite serve as exploration guides to ore.
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Ward, Dylan J. "Dip, layer spacing, and incision rate controls on the formation of strike valleys, cuestas, and cliffbands in heterogeneous stratigraphy." Lithosphere 11, no. 5 (August 2, 2019): 697–707. http://dx.doi.org/10.1130/l1056.1.

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Abstract Landscapes developed over heterogeneous stratigraphy exhibit a spectrum of landforms from dramatic cliffbands to hogbacks, depending on the dip and spacing of the layers. In deeply incised landscapes, a single cliffband may consist of multiple resistant layers, whereas similar stratigraphy elsewhere is separated by strike valleys into individual cuesta benches or hogbacks. This paper presents a geometric analysis, informed by a numerical landscape model, to explain the conditions for development of a strike valley floored by erodible rocks. The results define a threshold incision rate below which strike valleys are more likely to form; this threshold incision rate is proportional to the stratigraphic spacing of cliff-forming layers and a trigonometric function of dip angle. The analysis also yields a time scale for the adjustment of structural landforms to changes in regional incision rate, which is a function of dip angle and the coupling between cliff retreat rate and escarpment height. In example landscapes of the Colorado Plateau, this time scale is likely much longer than that of documented variations of incision rates due to late Quaternary climate and land-use changes. The transitional state of escarpments in layered rock may therefore contain information about regional downcutting rates over time scales different from those recorded by the fluvial network. The utility of such features will require better understanding of the coupling between incision of a foot slope and the retreat rate of the cliff above in different kinds of rocks.
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Xu, Chen, Yujie Zhu, Danqing Song, Xiaogang Guo, Xiaoli Liu, Enzhi Wang, and Runhu Lu. "Comparison of DEM Models with Different Elemental Dimensions for TBM Disc Cutter Rock Fragmentation." Sustainability 14, no. 19 (October 10, 2022): 12909. http://dx.doi.org/10.3390/su141912909.

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Disc cutters are the dominant tool used in the excavation of hard rock formations in any underground construction application, such as when tunneling using tunnel-boring machines (TBM), as well as in shaft- and raise boring operations. Optimization of the cutting geometry of a given disc cutter for application in a rock formation often involves full-scale cutting tests, which is a difficult and costly proposition. An alternative to full-scale testing is the numerical simulation of TBM disc cutters for optimization under different settings. Recent efforts in the field of numerical simulations of rock cutting have shown the relative success of discrete element models, such as particle flow code (PFC), to simulate two- and three-dimensional rock fragmentation. This study is focused on a sensitivity analysis of PFC simulation of rock-cutting relative to the size of the elements. The calculated cutting forces were compared with the recorded forces under various conditions during full-scale tests using a linear cutting machine (LCM) on Colorado red granite (CRG). The estimated cutting coefficient and specific energy in the LCM tests and simulations showed good correlations, which validates the numerical simulation results. Two- and three-dimensional models showed that two-dimensional numerical models can offer a qualitative assessment of crack development, whereas three-dimensional models could be used to estimate the specific energy when cutting. The results can help in predicting the cutting forces in different rocks and ultimately improving disc-cutter geometry and cutter-head design.
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Riggs, N. R., T. B. Sanchez, and S. J. Reynolds. "Evolution of the early Mesozoic Cordilleran arc: The detrital zircon record of back-arc basin deposits, Triassic Buckskin Formation, western Arizona and southeastern California, USA." Geosphere 16, no. 4 (June 30, 2020): 1042–57. http://dx.doi.org/10.1130/ges02193.1.

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Abstract A shift in the depositional systems and tectonic regime along the western margin of Laurentia marked the end of the Paleozoic Era. The record of this transition and the inception and tectonic development of the Permo-Triassic Cordilleran magmatic arc is preserved in plutonic rocks in southwestern North America, in successions in the distal back-arc region on the Colorado Plateau, and in the more proximal back-arc region in the rocks of the Buckskin Formation of southeastern California and west-central Arizona (southwestern North America). The Buckskin Formation is correlated to the Lower–Middle Triassic Moenkopi and Upper Triassic Chinle Formations of the Colorado Plateau based on stratigraphic facies and position and new detrital zircon data. Calcareous, fine- to medium-grained and locally gypsiferous quartzites (quartz siltstone) of the lower and quartzite members of the Buckskin Formation were deposited in a marginal-marine environment between ca. 250 and 245 Ma, based on detrital zircon U-Pb data analysis, matching a detrital-zircon maximum depositional age of 250 Ma from the Holbrook Member of the Moenkopi Formation. An unconformity that separates the quartzite and phyllite members is inferred to be the Tr-3 unconformity that is documented across the Colorado Plateau, and marks a transition in depositional environments. Rocks of the phyllite and upper members were deposited in wholly continental depositional environments beginning at ca. 220 Ma. Lenticular bodies of pebble to cobble (meta) conglomerate and medium- to coarse-grained phyllite (subfeldspathic or quartz wacke) in the phyllite member indicate deposition in fluvial systems, whereas the fine- to medium-grained beds of quartzite (quartz arenite) in the upper member indicate deposition in fluvial and shallow-lacustrine environments. The lower and phyllite members show very strong age and Th/U overlap with grains derived from Cordilleran arc plutons. A normalized-distribution plot of Triassic ages across southwestern North America shows peak magmatism at ca. 260–250 Ma and 230–210 Ma, with relatively less activity at ca. 240 Ma, when a land bridge between the arc and the continent was established. Ages and facies of the Buckskin Formation provide insight into the tectono-magmatic evolution of early Mesozoic southwestern North America. During deposition of the lower and quartzite members, the Cordilleran arc was offshore and likely dominantly marine. Sedimentation patterns were most strongly influenced by the Sonoma orogeny in northern Nevada and Utah (USA). The Tr-3 unconformity corresponds to both a lull in magmatism and the “shoaling” of the arc. The phyllite and upper members were deposited in a sedimentary system that was still influenced by a strong contribution of detritus from headwaters far to the southeast, but more locally by a developing arc that had a far stronger effect on sedimentation than the initial phases of magmatism during deposition of the basal members.
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Bracken, Kyle. "Mechanical stratigraphy and layer-bound normal faulting in the Upper Cretaceous Niobrara Formation, Wattenberg Field, Colorado." Mountain Geologist 57, no. 2 (April 1, 2020): 67–93. http://dx.doi.org/10.31582/rmag.mg.57.2.67.

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Layer-bound normal faults are pervasive within the very fine-grained rocks of the Upper Cretaceous Niobrara and Carlile formations in the Denver Basin. 3-D seismic and well log interpretation reveal a complex, segmented fault system that is divided into two discrete tiers: an upper tier located in the Pierre Shale, and a lower tier located in the Niobrara Formation. 3-D fault throw analysis shows maximum throw near the top of the Niobrara Formation with steep, asymmetrical throw gradient down section in the lower Niobrara and Carlile formations. Faults are laterally well-connected in the upper Niobrara Formation and commonly form linear arrays of linked graben systems. In contrast, faults deeper in the stratigraphic section that offset the Carlile and Greenhorn formations are more segmented and commonly form half grabens (as opposed to full, fault-bound grabens). In cross-section, fault planes measured from seismic have a general dip of 45°. However, close inspection reveals that faults consistently change dip angle as they pass through the lower Niobrara Formation, refracting from ~55° to ~35° through the Niobrara C Marl, then back up to ~50° in the Carlile and Greenhorn formations. The fault dip refraction produces a contractional step or bend in the fault plane associated with the lower dip segments. This geometry is investigated further with horizontal image logs and other borehole data to reveal a kinematic relationship between fault dip angle and mechanical stratigraphy. Field examples of normal faults that cut mechanically layered rock help better understand these complex fault geometries and provide reasonable inferences to their development and propagation history. In summary, it is argued that the mechanically layered nature of the Niobrara and Carlile formations is responsible for many of the fault characteristics described and provides valuable insight into understanding the fault system
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Groshong, Richard H., and Ken Kittleson. "Eastern Boulder-Weld fault zone, Colorado: A gravity slide with pop-up structures." Mountain Geologist 57, no. 3 (July 1, 2020): 177–98. http://dx.doi.org/10.31582/rmag.mg.57.3.177.

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The Boulder-Weld fault zone, located southeast of Boulder, Colorado, is about 10 km (6 mi) wide, 34 km (21 mi) long, and involves at least 335 m (1100 ft) of upper Cretaceous sedimentary rocks. It affects the Cretaceous upper Pierre Shale, Fox Hills Sandstone, and the coal–bearing lower Laramie Formation. This study is a detailed examination of the eastern portion of the fault zone which consists of undisturbed areas separated by three long, narrow, fault-bounded uplifts that have received a variety of interpretations over the years. The fault zone geometry is determined from 21 closely spaced cross sections that use more subsurface data than previous studies, incorporate the elevations of the major economic coal seam derived from a published composite structure-contour map, and are area balanced using area-depth-strain (ADS) analysis. The most common structural style is a pop-up structure in which the uplifts are bounded on both sides by reverse faults. At larger-displacement the pop-ups are at the tip of the ramp and a second fault has formed close to the base of the ramp. A few sections show simple ramp anticlines developed above listric thrusts. The lower detachment for all structures is the distinctive Kp2 marker in the upper Pierre Shale. ADS analysis of the best-controlled uplifts shows that the uplifts are area balanced and confirms the lower detachment to be near Kp2. The structures are interpreted to have formed as a gravity slide because they formed in a break-back sequence, a characteristic of gravity gliding, and because the transport direction is approximately down the current southeast dip of the Kp2 detachment.
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Velasco, Maria Soledad, David Alumbaugh, and Emmanuel Schnetzler. "Multiphysics data modeling and imaging for exploration in the southern Rocky Mountains." Interpretation 6, no. 3 (August 1, 2018): SG59—SG78. http://dx.doi.org/10.1190/int-2017-0215.1.

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We carried out a multidata geophysics study in southern Colorado to explore for [Formula: see text] reservoirs in an area where seismic imaging is very limited due to the mountainous terrain, the presence of high-velocity volcanic rocks, and difficulty in obtaining land access permits. We have developed a modeling/interpretation methodology using ground magnetotelluric data as well as airborne magnetic and electromagnetic data combined with public domain gravity data and existing well and seismic data. We used the integration of these data sets to produce a series of 2D and 3D geophysical models that reveal basin architecture previously poorly defined through the analysis of limited seismic and well data alone. We found that this type of analysis aids in decreasing uncertainty in the interpreted geologic cross sections and a better understanding of the structural complexities of the region. Through the application of machine learning methods, we are also able to integrate several data sets into a mathematical framework resulting in a predictive model of spatial [Formula: see text] distribution. The integration of the interpretations from all data sets, predictive analytics results, and knowledge of [Formula: see text] production, allows us to delineate areas of interest for further exploration.
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Allaz, Julien M., Joseph R. Smyth, Rhiana E. Henry, Charles R. Stern, Philip Persson, Joy J. Ma, and Markus B. Raschke. "Beryllium-silicon disorder and rare earth crystal chemistry in gadolinite from the White Cloud pegmatite, Colorado, USA." Canadian Mineralogist 58, no. 6 (November 1, 2020): 829–45. http://dx.doi.org/10.3749/canmin.1900084.

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ABSTRACT Gadolinite, REE2FeBe2Si2O10, is a monoclinic orthosilicate member of the gadolinite supergroup of minerals and occurs in beryllium and rare earth element (REE) bearing granites, pegmatites, and some metamorphic rocks. Gadolinite from the White Cloud pegmatite, South Platte Pegmatite district, Colorado, USA, has been investigated and shows unusually variable REE compositions and distinct Be-Si disorder. Crystal structure and chemistry of two petrographically distinct gadolinite samples from this locality have been studied by electron microprobe chemical analysis, laser ablation inductively coupled plasma-mass spectrometry (LA-ICP-MS), single-crystal X-ray diffraction (XRD), and micro-Raman spectroscopy. Within these samples, the gadolinite was found to range from gadolinite-(Y) to gadolinite-(Ce). Regions of nearly full occupancy of Fe at the M site, and partial substitution of Si for Be at the Q tetrahedral site, as well as substitution of Be for Si at the T site were observed, with up to 15% vacancy at the Fe site and up to 15% disorder between Be and Si at distinct tetrahedral sites elsewhere. The layered nature of the crystal structure allows for large variation of the radius of the cation at the A site which contains the REE. This study shows that Be may substitute for Si and that Be may be more abundant in geochemical systems than previously assumed.
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Dissertations / Theses on the topic "Rocks – Analysis – Colorado"

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Hasenohr, Edward Joseph. "Statistical analysis of trace element distributions in rocks and soils of the Breckenridge Mining District Summit County, Colorado /." The Ohio State University, 1987. http://rave.ohiolink.edu/etdc/view?acc_num=osu1487327695621244.

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Huffer, Donelle Joy. "A Spatial Analysis and Zooarchaeological Interpretation of Archaeological Bison Remains in the Southwest and the Wildlife Management Implications for the House Rock Valley Bison Herd in Grand Canyon National Park, Arizona." Thesis, The University of Arizona, 2013. http://hdl.handle.net/10150/311670.

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The historically introduced House Rock Valley bison herd has, in recent years, migrated from the eastern Arizona Strip onto the Kaibab Plateau within Grand Canyon National Park. Bison are considered a nonnative species to the southern Colorado Plateau, and the animals adversely impact sensitive ecosystems prompting National Park Service wildlife managers to pursue their removal. Archaeofaunal evidence of bison in the Grand Canyon and neighboring regions, however, raises concern that bison may in fact be native. Assessing the evidence within a zooarchaeological interpretive framework is critical since mere presence/absence lists of bison remains do not address the potentially complex cultural processes involved in the formation of archaeofaunal assemblages. Inter-assemblage comparisons illustrate a decline in relative abundance and skeletal completeness correlated to distance from traditionally understood historical bison distribution. If bison were present in the Southwest, as the evidence suggests, they likely entered the region only occasionally as small, dispersed herds.
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Books on the topic "Rocks – Analysis – Colorado"

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Fisher, Frederick S. Geochemical data, Red Mountains mining district, San Juan Mountains, Colorado. [Reston, Va.?]: U.S. Dept. of the Interior, Geological Survey, 1987.

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Campbell, David L. Geoelectrical laboratory and field studies of materials from the Tucson Mine dump near Leadville, Colorado. Denver, Colo: U.S. Dept. of the Interior, U.S. Geological Survey, 2000.

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Campbell, David L. Geoelectrical laboratory and field studies of materials from the Tucson Mine dump near Leadville, Colorado. Denver, Colo: U.S. Dept. of the Interior, U.S. Geological Survey, 2000.

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Glover, Kent C. Geohydrology of Tertiary rocks in the Upper Colorado River Basin in Colorado, Utah, and Wyoming, excluding the San Juan Basin: Regional aquifer-system analysis. Cheyenne, Wyo: U.S. Dept. of the Interior, U.S. Geological Survey, 1998.

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Widmann, Beth L. Database of geochemical analyses of carbonate rocks in Colorado. Denver, Colo: Colorado Geological Survey, 2001.

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Cole, Sally J. An analysis of the prehistoric and historic rock art of west-central Colorado. Denver, Colo: Bureau of Land Management, Colorado State Office, 1987.

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Cole, Sally J. An analysis of the prehistoric and historic rock art of west-central Colorado. Denver, Colo: Bureau of Land Management, Colorado State Office, 1987.

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W, Terry Robert. Contamination of surface soil in Colorado by plutonium, 1970-1989: Summary and comparison of plutonium concentrations in soil in the Rocky Flats Plant vicinity and eastern Colorado. [Colorado?: Dept. of Health?, 1991.

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J, Schenk Christopher, Daws Ted A, and Geological Survey (U.S.), eds. Summary of vitrinite reflectance and rock-eval pyrolysis data, Eagle Basin, northwestern Colorado. [Reston, Va.?]: Dept. of the Interior, U.S. Geological Survey, 1986.

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J, Horton Robert, and Geological Survey (U.S.), eds. Geoelectrical laboratory and field studies of materials from the Tucson Mine dump near Leadville, Colorado. Denver, Colo: U.S. Dept. of the Interior, U.S. Geological Survey, 2000.

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Book chapters on the topic "Rocks – Analysis – Colorado"

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Wohl, Ellen. "Water Follows the People: Analysis of Water Use in the Western Great Plains and Rocky Mountains of Colorado, USA." In Landscapes and Societies, 391–406. Dordrecht: Springer Netherlands, 2010. http://dx.doi.org/10.1007/978-90-481-9413-1_24.

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Fan, Xuefei, Xu Chu, Wentao Cao, and Yi Zou. "Local rapid exhumation during the long-lived Grenville orogeny." In Laurentia: Turning Points in the Evolution of a Continent. Geological Society of America, 2022. http://dx.doi.org/10.1130/2022.1220(18).

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ABSTRACT The Grenville Province is the largest and most structurally complex orogenic belt that formed in the Mesoproterozoic, representing the amalgamation of the supercontinent Rodinia. The Mattawa domain, part of the Algonquin domain in Ontario, Canada, hosts some of the most deeply buried metamorphic rocks of this orogen. This high-grade metamorphic terrane consists of large areas of felsic orthogneiss and kilometer-sized mafic boudins. Dark-colored metabasite cropping out near Mattawa, Ontario, Canada, contains relict mineral assemblages and decompression textures indicative of high-pressure eclogite. Garnet porphyroblasts surrounded by plagioclase coronae are hosted in fine-grained symplectic intergrowths of diopside + plagioclase ± amphibole, which compositionally reintegrated into an omphacite composition (Na/[Na + Ca] ~0.5). Phase equilibria analysis revealed an eclogite-facies peak pressure of ~2 GPa at 850 °C. This temperature is consistent with the zirconium contents of rutile inclusions in garnet (up to 1725 ppm Zr). Despite high-temperature metamorphism, garnet growth zonation is partially preserved. Diffusion modeling of representative garnet profiles yielded a time scale of <0.1 m.y. for decompression from the peak pressure to ~1.2 GPa, suggesting an average exhumation rate of several decimeters per year. Decompression was followed by fast cooling within hundreds of thousands of years. Such fast decompression and cooling rates contrast with the protracted metamorphic evolution recorded in most of the Grenville orogen and likely resulted from local extrusion of lower-crustal material in response to localized extension during the early Ottawan stage. Since very few examples of Precambrian short-duration regional metamorphism have been documented, the fast decompression documented in this study provides valuable constraints for the geodynamic transition to a modern plate-tectonic regime.
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Conference papers on the topic "Rocks – Analysis – Colorado"

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Long, Leon E. "CHARACTERIZING IGNEOUS ROCKS AND MINERALS USING MATRIX ANALYSIS." In GSA Annual Meeting in Denver, Colorado, USA - 2016. Geological Society of America, 2016. http://dx.doi.org/10.1130/abs/2016am-283528.

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Hasiuk, Franciszek, and Stephen Kaczmarek. "A BIG-DATA META-ANALYSIS OF MICROPOROSITY OCCURRENCE IN CARBONATE ROCKS." In GSA Annual Meeting in Denver, Colorado, USA - 2016. Geological Society of America, 2016. http://dx.doi.org/10.1130/abs/2016am-286192.

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Denn, Alison R., and Paul R. Bierman. "OLD ROCKS, NEW DATA: COSMOGENIC 10BE ANALYSIS OF A RELICT PERIGLACIAL BOULDER FIELD, HICKORY RUN STATE PARK, PENNSYLVANIA." In GSA Annual Meeting in Denver, Colorado, USA - 2016. Geological Society of America, 2016. http://dx.doi.org/10.1130/abs/2016am-285088.

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Fedo, Christopher M., Mary A. Eibl, and Ian O. McGlynn. "TEXTURAL AND COMPOSITIONAL ANALYSIS OF TERRESTRIAL BASALTIC SEDIMENTS: TOWARD A BETTER UNDERSTANDING OF MARTIAN SEDIMENTS AND SEDIMENTARY ROCKS." In GSA Annual Meeting in Denver, Colorado, USA - 2016. Geological Society of America, 2016. http://dx.doi.org/10.1130/abs/2016am-287575.

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Hoffman, Max L., and Gary S. Michelfelder. "OXYGEN ISOTOPE AND GEOCHEMICAL ANALYSIS OF VOLCANIC ROCKS FROM SOUTH-CENTRAL NEW MEXICO: INSIGHT ON CRUSTAL CONTAMINATION AND MAGMATIC EVOLUTION." In GSA Annual Meeting in Denver, Colorado, USA - 2016. Geological Society of America, 2016. http://dx.doi.org/10.1130/abs/2016am-286870.

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Austin, Sarah, and Gautam Mitra. "ANALYSIS OF FINITE STRAIN DISTRIBUTION WITHIN BASEMENT ROCKS OF THE KOREAN COLLISION BELT, SOUTH KOREA: IMPLICATIONS FOR EMPLACEMENT MECHANICS AND TECTONIC SHORTENING." In GSA Connects 2022 meeting in Denver, Colorado. Geological Society of America, 2022. http://dx.doi.org/10.1130/abs/2022am-382267.

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Brennan, Kelsey, Nancy R. Riggs, and Andrew P. Barth. "FACIES AND GEOCHEMICAL ANALYSIS OF THE TRIASSIC VOLCANIC ROCKS IN TWO PENDANTS, EASTERN CALIFORNIA WITH IMPLICATIONS FOR ARC PALEOGEOGRAPHY, VOLCANOLOGY, AND SUBDUCTION INITIATION." In GSA Connects 2022 meeting in Denver, Colorado. Geological Society of America, 2022. http://dx.doi.org/10.1130/abs/2022am-383746.

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Shukle, John T., A. P. Barth, J. L. Wooden, Nancy R. Riggs, and J. Douglas Walker. "GEOCHEMISTRY AND DISCRIMINANT ANALYSIS OF ZIRCONS FROM TRIASSIC PLUTONIC AND VOLCANIC ROCKS IN THE SIERRA NEVADA: TRACING THE ORIGINS OF GRANODIORITE AND IGNIMBRITES FOLLOWING ARC INITIATION." In GSA Annual Meeting in Denver, Colorado, USA - 2016. Geological Society of America, 2016. http://dx.doi.org/10.1130/abs/2016am-283911.

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Santi, Paul. "Landslide Analysis with Incomplete Data: Examples from Colorado and Wyoming." In Rocky Mountain Geo-Conference 2018. Reston, VA: American Society of Civil Engineers, 2018. http://dx.doi.org/10.1061/9780784481936.002.

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Trippe, R. Reid, David A. Gonzales, and Kimberly A. Hannula. "KINEMATIC COMPATIBILITY ANALYSIS OF THE OURAY FAULT, SOUTHWESTERN COLORADO." In 68th Annual Rocky Mountain GSA Section Meeting. Geological Society of America, 2016. http://dx.doi.org/10.1130/abs/2016rm-276058.

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Reports on the topic "Rocks – Analysis – Colorado"

1

Perstein, J., and J. A. Castellano. Hydraulic model analysis of water distribution system, Rockwell International, Rocky Flats, Colorado. Office of Scientific and Technical Information (OSTI), January 1989. http://dx.doi.org/10.2172/10176721.

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WOODWARD-CLYDE CONSULTANTS DENVER CO. Basin F Liquid Storage Tank 102, Decontamination Field Demonstration, Rocky Mountain Arsenal, Colorado. Design Analysis. Fort Belvoir, VA: Defense Technical Information Center, July 1992. http://dx.doi.org/10.21236/ada295540.

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North, Karen. Safety, Health and Emergency Response Plan, Phase 1 Site Investigation and Analysis. Basin F Ground Water Treatment Interim Response Action, Rocky Mountain Arsenal, Commerce City, Colorado. Fort Belvoir, VA: Defense Technical Information Center, June 1988. http://dx.doi.org/10.21236/ada296916.

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4

Simulation analysis of the ground-water system in Mesozoic rocks in the Four Corners area, Utah, Colorado, Arizona, and New Mexico. US Geological Survey, 1989. http://dx.doi.org/10.3133/wri884086.

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UMTRA Project water sampling and analysis plan, Slick Rock, Colorado. Office of Scientific and Technical Information (OSTI), August 1994. http://dx.doi.org/10.2172/10180497.

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Supplement to the UMTRA project water sampling and analysis plan, Slick Rock, Colorado. Office of Scientific and Technical Information (OSTI), September 1995. http://dx.doi.org/10.2172/109648.

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