Relevant bibliographies by topics / Geochronology

Academic literature on the topic 'Geochronology'

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Published: 4 June 2021
Last updated: 30 July 2024

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Journal articles on the topic "Geochronology"

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Bowring, Samuel A., Blair Schoene, James L. Crowley, Jahandar Ramezani, and Daniel J. Condon. "High-Precision U-Pb Zircon Geochronology and the Stratigraphic Record: Progress and Promise." Paleontological Society Papers 12 (October 2006): 25–45. http://dx.doi.org/10.1017/s1089332600001339.

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High-precision geochronological techniques have improved in the past decade to the point where volcanic ash beds interstratified with fossil-bearing rocks can be dated to a precision of 0.1% or better. The integration of high-precision U-Pb zircon geochronology with bio/chemo-stratigraphic data brings about new opportunities and challenges toward constructing a fully calibrated time scale for the geologic record, which is necessary for a thorough understanding of the distribution of time and life in Earth history. Successful implementation of geochronology as an integral tool for the paleontologist relies on a basic knowledge of its technical aspects, as well as an ability to properly evaluate and compare geochronologic results from different methods. This paper summarizes the methodology and new improvements in U-Pb zircon geochronology by isotope dilution thermal ionization mass spectrometry, specifically focused on its application to the stratigraphic record.
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Ferrusquia-Villafranca, Ismael. "Do GSSPs render dual time-rock/time classification and nomenclature redundant?" Stratigraphy 6, no. 2 (2009): 135–69. http://dx.doi.org/10.29041/strat.06.2.07.

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The Geological Society of London Proposal for "...ending the distinction between the dual stratigraphic terminology of time-rock units (of chronostratigraphy) and geologic time units (of geochronology). The long held, but widely misunderstood distinction between these two essentially parallel time scales has been rendered unnecessary by the adoption of the global stratotype sections and points (GSSP-golden spike) principle in defining intervals of geologic time within rock strata." Our review of stratigraphic principles, concepts, models and paradigms through history clearly shows that the GSL Proposal is flawed and if adopted will be of disservice to the stratigraphic community. We recommend the continued use of the dual stratigraphic terminology of chronostratigraphy and geochronology for the following reasons: (1) time-rock (chronostratigraphic) and geologic time (geochronologic) units are conceptually different; (2) the subtended time-rock's unit space between its "golden spiked-marked" lower and upper boundaries, actually corresponds to the duration of the time-rock unit's defining geologic s.l. events-set; therefore, in no way can physical time (instants or intervals) be directly defined by GSSPs, (3) combining in a single system of "chronostratigraphic units" the time-rock and geologic time units as currently understood, leads to the epistemological error of uniting evidence (rock successions) with inference (the interpreted duration of chosen defining events); (4) the redundancy of the terms eonothem, erathem, system, series, and stage with eon, era, period, epoch and age lacks support, given that they are conceptually different; in fact, referring to "eon," "era," etc. as terms uniting both time-rock and geochronologic connotations will produce needless nomenclatorial confusion, attaching different meanings to already well known and widely used geologic terms; and (5) the reversion of 'geochronology' to its main stream and original meaning of numerical dating has no foundation, just by considering that the use of geochronolgy precedes numerical dating, which became practical by the 1960's. We endorse the following: (1) the GSSP network needs to be improved through the use of reference sections at high latitude sites, and in sedimentary continental rock successions of achievable, dependable positioning in the global standard timetable; and (2) to attend to researchers using astronomically-forced sedimentary systems, the designation of unit stratotypes needs to be reinstated as a valid and as a, complementary means of defining chronostratigraphic units, particularly at the stage and lower chronostratigraphic rank.
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BERGGREN, WILLIAM A., DENNIS V. KENT, JOHN J. FLYNN, and JOHN A. VAN COUVERING. "Cenozoic geochronology." Geological Society of America Bulletin 96, no. 11 (1985): 1407. http://dx.doi.org/10.1130/0016-7606(1985)96<1407:cg>2.0.co;2.

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Stern, R. A., I. R. Fletcher, B. Rasmussen, N. J. McNaughton, and B. De Waele. "Nano-geochronology?" Geochimica et Cosmochimica Acta 70, no. 18 (August 2006): A614. http://dx.doi.org/10.1016/j.gca.2006.06.1138.

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Cooperdock, Emily H. G., Florian Hofmann, Ryley M. C. Tibbetts, Anahi Carrera, Aya Takase, and Aaron J. Celestian. "Technical note: Rapid phase identification of apatite and zircon grains for geochronology using X-ray micro-computed tomography." Geochronology 4, no. 2 (July 21, 2022): 501–15. http://dx.doi.org/10.5194/gchron-4-501-2022.

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Abstract. Apatite and zircon are among the best-studied and most widely used accessory minerals for geochronology and thermochronology. Given that apatite and zircon are often present in the same lithologies, distinguishing the two phases in crushed mineral separates is a common task for geochronology, thermochronology, and petrochronology studies. Here we present a method for efficient and accurate apatite and zircon mineral phase identification and verification using X-ray micro-computed tomography (microCT) of grain mounts that provides additional three-dimensional grain size, shape, and inclusion suite information. In this study, we analyze apatite and zircon grains from Fish Canyon Tuff samples that went through methylene iodide (MEI) and lithium heteropolytungstate (LST) heavy liquid density separations. We validate the microCT results using known standards and phase identification with Raman spectroscopy, demonstrating that apatite and zircon are distinguishable from each other and other common phases, e.g., titanite, based on microCT X-ray density. We present recommended microCT scanning protocols after systematically testing the effects of different scanning parameters and sample positions. This methodology can help to reduce time spent performing density separations with highly toxic chemicals and visually inspecting grains under a light microscope, and the improved mineral identification and characterization can make geochronologic data more robust.
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Smit, Karen V., Suzette Timmerman, Sonja Aulbach, Steven B. Shirey, Stephen H. Richardson, David Phillips, and D. Graham Pearson. "Geochronology of Diamonds." Reviews in Mineralogy and Geochemistry 88, no. 1 (July 1, 2022): 567–636. http://dx.doi.org/10.2138/rmg.2022.88.11.

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Mezger, K. "Geochronology and Metamorphism." Mineralogical Magazine 58A, no. 2 (1994): 605–6. http://dx.doi.org/10.1180/minmag.1994.58a.2.51.

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De Laeter, J. R., A. J. W. Gleadow, and I. McDougall. "Geochronology in Australia." Australian Journal of Earth Sciences 55, no. 6-7 (August 2008): 721–22. http://dx.doi.org/10.1080/08120090802094077.

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Schmitz, M. D., and K. F. Kuiper. "High-Precision Geochronology." Elements 9, no. 1 (February 1, 2013): 25–30. http://dx.doi.org/10.2113/gselements.9.1.25.

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Berggren, William A. "Time and time again: getting it right." Paleontological Society Special Publications 6 (1992): 27. http://dx.doi.org/10.1017/s2475262200005876.

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The passage of time cannot be measured in vacuo. Recognition of the time-continuum can only be made by reference to physical and/or biotic events in the geohistorical (rock) record. Inasmuch as these events in the rock record must be measurable in some fashion, they must be related to an objective and retrievable reference standard. Thus the “holy trinity” of litho-bio-and chronostratigraphy can serve as the material (concrete) evidence for the totally conceptual geochronologic units which have no objective existence apart from the natural world.Geochronology is defined here as the conceptual division of continuous time as measured (geochronometry) by the progression in an ordinal series of events. This is best achieved by an approach which integrates four independent data sets: magnetostratigraphy, sea-floor spreading magnetic anomalies, biostratigraphy and isotopic dating. This integrated approach has resulted, until recently, in an ordinal framework capable of measuring the passage of time with greater resolution (precision), though perhaps with less accuracy, than a radiometric approach alone. Recent improvements in the field of isotopic dating-the single crystal laser fusion (SCLF) 40Ar/39Ar technique - now render possible dates with analytical precision of <1% in the early to mid-Cenozoic. The implication for high resolution correlation is clear: until recently biostratigraphy and biochronology have been routinely able to achieve a degree of chronologic resolution considerably higher than that of isotopic dating with its inherently large analytical errors. Laser fusion dating is now capable of providing numerical values for parts of the stratigraphic record with comparable or greater precision than classical biostratigraphy and biochronology. It is clear, now more than ever, that an accurate and precise biostratigraphy is important as we continue to improve upon the geochronologic framework which underlies attempts at high resolution correlation between marginal, platform and deep-sea stratigraphies.A review of the philosophic and methodologic approach of various Cenozoic geochronologic schemes and their strengths and weaknesses will be presented together with a brief discussion of a new, and as yet unpublished, revision to Cenozoic geochronology. Recent assessment of sea floor anomaly patterns indicate a need to stretch the spacing of the interval between anomalies 3A to 5 resulting in an age increase of about 0.5my for Anomaly 5 from 8.92–10.42Ma (BKVC85) to 9.6–11.0Ma; the revised age estimates are consistent with those of McDougall (1984) based on radioisotopic dating of Icelandic basalts. No other major (age) revisions to Neogene chronology are contemplated. However, discrete adjustments are required in the late Neogene as magnetostratigraphic boundaries and biostratigraphic datum events are (re)correlated to the recently proposed astronomically calibrated orbital time scale of Hilgen and Langereis. In the Paleogene the major change is centered on readjustment of the Eocene which, while retaining its relative duration of ~21my, has younger (~34Ma) and older (~54.5Ma) limits, respectively, not unlike some estimates made over 20 years ago. Emphasis on implications for Paleogene geochronology will be stressed with particular reference to events around the Paleocene/Eocene boundary and the integration of correlative NW European and Gulf and Atlantic Coastal Plain stratigraphies in a sequence stratigraphic framework. The continuing efforts being devoted to revising Cenozoic geochronology have as their overiding goal the simple yet scientifically elusive objective of “getting it right”.
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Dissertations / Theses on the topic "Geochronology"

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Grun, Rainer Wolfgang. "Contributions to quaternary geochronology." Phd thesis, Canberra, ACT : The Australian National University, 1995. http://hdl.handle.net/1885/145307.

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Marshall, William Alderman. "Geochronology of salt-marsh sediments." Thesis, University of Plymouth, 2007. http://hdl.handle.net/10026.1/2826.

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Salt-marsh sediments can provide important achives of past sea levels if they can be securely dated. This thesis investigates eight methods for dating salt-marsh sediments. These include traditional and established dating methods (¹⁴C dating and the radionuclides ¹³⁷Cs and ²¹ºPb) and more novel approaches to dating the deposition of salt-marsh sediments (palaeomagnetic dating, the use of' atmospheric stable lead deposition, tephra chronologies, pollen markers, SCP analysis and the use of atmospheric ¹⁴C 'bomb spike' and high-precision AMS ¹⁴C measurements). Sites were selected to provide contrasting sediment sequences that differed both in lithology and accumulation rates and included salt marshes from the Taf estuary (southwest Wales), the Arne Peninsula (southern England) and Vioarholmi (western Iceland). The investigations in the Taf estuary produced the first palaeomagnetic chronology from a salt marsh. From the Arne Peninsula this thesis reports the first successful use of bomb-spike calibrated ¹⁴C analyses in a salt marsh as well as high-precision AMS ¹⁴C ages for the 'problem' period AD 1700-1950. Stable Pb analysis at all three sites produced a number of chronological markers that signalled the timing of increases in industrial Pb emissions, and the later use of Pb petrol additives during the 20th century. In addition, a unique isotopic signal, attributed to the working of Pb metal during the height of the Roman Empire in Europe, was found in the Icelandic sediments. The radionuclides ²¹ºPb and ¹³⁷Cs produced precise chronologies for the last 100 yr in the Taf estuary. However, post-depositional mobility of ¹³⁷Cs on the Arne Peninsula and low ²¹ºPb concentrations at Vioarholmi prevents the construction of reliable ²¹ºPb and ¹³⁷Cs chronologies. In contrast, the use of tephra at Vioarholmi, and pollen and spheroidal carbonaceous particle markers on the Arne Peninsula, showed great potential as independent unique-event dating tools that could be used to constrain conventional ¹⁴C calibrations. Finally, the chronological information produced by all the individual methods was combined to construct an integrated chronology for each site. This approach significantly reduced age uncertainties and produced higher resolution, and more robust, salt-marsh sedimentation histories
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Heim, Sabine. "Geochronology of anthropogenic contaminants in fluvial sediments /." Aachen : Shaker, 2005. http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&doc_number=014779100&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA.

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Simonetti, Antonio. "The geochronology of acadian plutonism in Southern Quebec /." Thesis, McGill University, 1988. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=61761.

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Lawley, Christopher J. M. "Geochronology and structure of the Lupa Goldfield, Tanzania." Thesis, Durham University, 2012. http://etheses.dur.ac.uk/5906/.

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Gold occurrences in the Lupa goldfield, SW Tanzania, are typical of the orogenic Au deposit type. Auriferous quartz veins and mylonitic shear zones cross cut Archean granitoids (ca. 2740 Ma) and Paleoproterozoic felsic-mafic intrusions (1960–1880 Ma) comprising a Paleoproterozoic magmatic arc at the Tanzanian cratonic margin. Lu-Hf zircon results provide evidence for ca. 3.1 Ga basement beneath the Lupa goldfield and imply significant portions of the Ubendian Belt represent re-worked Archean crust. A greenschist facies metamorphic mineral assemblage overprints all of the magmatic phases and U-Pb dating of syn-metamorphic titanite hosted by a foliated Archean granitoid at ca. 1950 Ma suggests the onset of this tectonothermal episode occurred during the Paleoproterozoic. The majority of mineralization is hosted by a network of brittle-ductile and mylonitic shear zones, which record evidence for transpressional deformation of triclinic, or lower order, symmetry. Relacement of igneous feldspar (plagioclase and K feldspar) with intrinsically weaker phyllosilicates, during sericitization of the granitic wall rock, created the ideal conditions for strain localization and locally may have led to the onset of crystal plastic deformation processes. Continued feedback between fluid, rock and deformation generated interconnected networks of weak mylonitic shear zones that are subject to reactivation. Quartz veins are the other significant host for Au and possess geometries that imply mineralization occurred concurrently with episodic fluid pressure fluctuations. Re-Os molybdenite, pyrite and chalcopyrite geochronology ages record a protracted metallogenic history and provide evidence for at least two mineralizing events at ca. 1940 and 1885 Ma. Each metallogenic event is represented in detail by a hydrothermal history that occurred at a time scale less than the resolution of the Re-Os method. High precision U-Pb zircon ages for the Saza Granodiorite overlap with Re-Os ages and provide unequivocal evidence for magmatism concomitant with sulphidation, however the wide range of Re-Os sulphide ages precludes a genetic relationship between any individual intrusion and Au. The goldfield-wide metallogenic event at ca. 1885 Ma occurred concurrently with eclogite facies metamorphism elsewhere in the Ubendian Belt and provides one of Earth’s earliest examples of subduction processes temporally linked to orogenic Au deposit formation. Mesoproterozoic Re-Os ages (ca. 1125 Ma) correlated to the Kibaran/Irumide Orogenies and compatible with inferred Pb loss events provide evidence for sulphidation during at least two discrete orogenic cycles and suggest mid-crustal mylonitic shear zones represent long-lived zones of structural weakness.
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Sahy, Claudia Diana. "Geochronology and chronostratigraphy of the Eocene-Oligocene transition." Thesis, University of Leicester, 2014. http://hdl.handle.net/2381/28952.

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This thesis integrates high-precision (<0.2%, 2σ) [superscript 206]Pb/[superscript 238]U dating of zircons from volcanic tuffs intercalated in key Late Eocene-Oligocene marine and terrestrial sedimentary successions, with high-resolution biostratigraphic and magnetostratigraphic data sets in order to critically examine the accuracy and precision of the numerical age calibration of the Eocene – Oligocene transition (EOT). Weighted mean [superscript 206]Pb/[superscript 238]U ages from the Italian Umbria-Marche and North American White River Group (WRG) sedimentary successions are 0.4-1.0 Myr younger than legacy [superscript 40]Ar/[superscript 39]Ar biotite and sanidine data from the same tuffs (calibrated relative to Fish Canyon sanidine at 28.201 Ma). [superscript 206]Pb/[superscript 238]U calibrated age-depth models were used to constrain the age of magnetic reversals between 26.5-36 Ma (C8r-C16n.2n). Interpolated magnetic reversal ages are consistent with relatively constant seafloor spreading rates, and provide a fully integrated and robust chronostratigraphic framework for the EOT, as shown by mutual consistency of chron boundary ages from the Umbria-Marche basin and the WRG between 31-36 Ma. These data effectively eliminate the discrepancies between astronomically tuned and radio-isotopically calibrated time scales of the EOT. An evaluation of the fidelity of planktonic foraminifer bioevent based chronostratigraphy across the EOT indicates that the last occurrence of hantkeninids and the last common occurrence of Chiloguembelina cubensis which mark the Eocene-Oligocene (34.090 ± 0.074 Ma) and Rupelian – Chattian (28.126 ± 0.175 Ma) boundaries are not timetransgressive across oceanic basins. However, other Oligocene planktonic foraminifer bioevents occur 0.4-0.8 Myr later in the western Tethys than in tropical and subtropical open ocean settings. In the WRG sedimentary succession, the first and last appearance datums of key Late Eocene mammal taxa show diachroneity of ca. 1 Myr over a distance of 400 km. Long-term aridification recorded by the WRG appears to be time-transgressive, and progressed gradually from west to east, while abrupt Early Oligocene cooling reported from WRG outcrops in NE Nebraska was synchronous with Early Oligocene glaciation of Antarctica.
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Rushworth, Elisabeth. "Carbonates from Olduvai Gorge, Tanzania : palaeohydrology and geochronology." Thesis, University of Liverpool, 2012. http://livrepository.liverpool.ac.uk/10193/.

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Carbonates are abundant in the Pleistocene sedimentary sequence at Olduvai Gorge, Tanzania. This study reports their potential for investigating palaeoenvironments and for radiometric dating using U-Pb geochronology. Using their textural characteristics the, commonly nodular, terrestrial carbonates have been placed in one of five groups. By using multiple textural and geochemical analytical techniques, the palaeohydrological origin of each group has been proposed. When referenced to the geographical and stratigraphic framework at the eastern lake margin, the carbonates have been used to identify the palaeohydrological conditions beneath specific land surfaces and how it changed through time. The results identify the onset of synsedimentary faulting below Tuff IB, the palaeohydrological significance of fault control in landscape development, and the persistence of water in discrete settings. This helps to explain why hominin activity is located in certain areas in a fault compartment. The study has proved that detailed investigation of carbonates offers an effective method for understanding the wider palaeohydrology at exposure surfaces and the factors influencing hominin exploitation at particular locations and has the potential to provide a predictive tool for future archaeological investigations. Two types of dolomite are found at different stratigraphic levels, identifying episodes of high Mg/Ca ratios in the lake, and dolomite precipitation occurring in both a basinal and a lake marginal setting. Sand-sized calcite crystals formed in the shallow sub-surface sediments on the lake floor and lake margins under anoxic to sub-oxic conditions. 238U - 206Pb dating of these zoned calcite crystals using Laser Ablation MC-ICP-MS and has produced dates only a little older than those using 40Ar/39Ar on tuffs in the same stratigraphic intervals. 234U/238U activity ratios of the Pleistocene crystals indicate that different levels are more affected by open system behaviour than others. Early-diagenetic, authigenic calcite crystals show exciting promise for directly dating saline, alkaline lake sediments which may be useful in similar hominin sites where geochronology is less well constrained.
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Rooney, Alan. "Re-Os geochronology and geochemistry of Proterozoic sedimentary successions." Thesis, Durham University, 2011. http://etheses.dur.ac.uk/621/.

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The Re-Os organic-rich sedimentary rocks (ORS) geochronometer has the potential to provide precise depositional ages and vital information on the Os isotope composition of palaeo-seawater. This thesis presents new geochronology data from Proterozoic sedimentary successions and insights into Re-Os systematics of organic-rich sedimentary rocks and petroleum products such as bitumen and oil. New Re-Os ORS geochronology from two drill cores indicate that the Proterozoic Atar Group of the Taoudeni basin, Mauritania is ~200 Ma older than previous estimates (1107 ± 12 Ma, 1109 ± 22 Ma and 1105 ± 37 Ma). Furthermore, this data also provides precise Re-Os geochronology data from sedimentary rocks that have experienced flash pyrolysis and demonstrate that the Re-Os systematics are not disturbed by the effects of very rapid heating. Coupled with palaeomagnetic data the Re-Os geochronology suggests that a reassessment of the role of the West African craton during the assembly of Rodinia is required. New Re-Os geochronology for the Ballachulish Slate Formation of the Dalradian Supergroup, Scotland yields a depositional age of 659.6 ± 9.6 Ma. The Re-Os age represents a maximum age for the glaciogenic Port Askaig Formation and represents the first successful application of the Re-Os geochronometer in sedimentary rocks with low Re and Os abundances (<1 ppb and <50 ppt, respectively). This new age suggests that the Port Askaig Formation may be correlative with Sturtian glaciations rather than middle Cryogenian events. Laboratory-based hydrous pyrolysis experiments were employed to evaluate the complexation of Re and Os in ORS and their transfer behaviour into petroleum. The findings from these experiments demonstrate that the Re-Os geochronometer is not disturbed by thermal maturation of whole rocks. Furthermore, the data support the hypothesis that the isotope composition of oils and bitumens can be used to fingerprint petroleum to specific source rocks.
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Heim, Sabine [Verfasser]. "Geochronology of Anthropogenic Contaminants in Fluvial Sediments / Sabine Heim." Aachen : Shaker, 2005. http://d-nb.info/118658825X/34.

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Schneider, Albrecht. "Eruptive processes, mineralization and isotopic evolution of the Los Frailes Karikari region, Bolivia." Thesis, Imperial College London, 1985. http://hdl.handle.net/10044/1/37847.

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Books on the topic "Geochronology"

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Noller, Jay Stratton, Janet M. Sowers, and William R. Lettis, eds. Quaternary Geochronology. Washington, D. C.: American Geophysical Union, 2000. http://dx.doi.org/10.1029/rf004.

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Reiners, Peter W., Richard W. Carlson, Paul R. Renne, Kari M. Cooper, Darryl E. Granger, Noah M. McLean, and Blair Schoene. Geochronology and Thermochronology. Chichester, UK: John Wiley & Sons, Ltd, 2017. http://dx.doi.org/10.1002/9781118455876.

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Olszewski, Thomas D. Geochronology: Emerging opportunities. Edited by Huff Warren D. 1937-, Paleontological Society, and Geological Society of America. Meeting. New Haven, Conn: Paleontological Society, 2006.

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Vail, J. R. Geochronology of the Sudan. London: HMSO, 1990.

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George, Agogino, ed. Geochronology of Sandia Cave. Washington: Smithsonian Institution Press, 1986.

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van den Haute, Peter, and Frans de Corte, eds. Advances in Fission-Track Geochronology. Dordrecht: Springer Netherlands, 1998. http://dx.doi.org/10.1007/978-94-015-9133-1.

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de, Laeter J. R., and Myers J. S, eds. Geochronology of the Gascoyne Province. Perth: G.P.O., 1986.

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E, Villeneuve M., ed. Tectonic subdivision and U-Pb geochronology of the crystalline basement of the Alberta Basin, western Canada. Ottawa, Canada: Geological Survey of Canada, 1993.

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Dyk, An Le, and Goddard Space Flight Center, eds. Tetictes of Vietnam: Tectites delivered by a comet : a hypothesis. Greenbelt, Md: NASA/Goddard Space Flight Center, 1987.

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A, Berggren William, ed. Geochronology, time scales, and global stratigraphic correlation. Tulsa, Okla: SEPM (Society for Sedimentary Geology), 1995.

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Book chapters on the topic "Geochronology"

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Schellmann, Gerhard, Helmut Brückner, and Dominik Brill. "Geochronology." In Encyclopedia of Earth Sciences Series, 859–69. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-319-93806-6_147.

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Albarede, Francis. "Geochronology." In Encyclopedia of Astrobiology, 1–12. Berlin, Heidelberg: Springer Berlin Heidelberg, 2014. http://dx.doi.org/10.1007/978-3-642-27833-4_639-3.

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Schellmann, Gerhard, Helmut Brückner, and Dominik Brill. "Geochronology." In Encyclopedia of Earth Sciences Series, 1–11. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-48657-4_147-2.

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Albarède, Francis. "Geochronology." In Encyclopedia of Astrobiology, 947–57. Berlin, Heidelberg: Springer Berlin Heidelberg, 2015. http://dx.doi.org/10.1007/978-3-662-44185-5_639.

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Albarède, Francis. "Geochronology." In Encyclopedia of Astrobiology, 649–58. Berlin, Heidelberg: Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/978-3-642-11274-4_639.

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Liebetrau, Volker. "Geochronology." In Encyclopedia of Geobiology, 413–16. Dordrecht: Springer Netherlands, 2011. http://dx.doi.org/10.1007/978-1-4020-9212-1_224.

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Deino, Alan L. "Geochronology." In A Companion to Paleoanthropology, 244–64. Oxford: Blackwell Publishing Ltd, 2013. http://dx.doi.org/10.1002/9781118332344.ch13.

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Schellmann, Gerhard, Helmut Brückner, Mike P. Stewart, Shawn M. Boeser, Dieter H. Kelletat, James R. Houston, Ram K. Mohan, et al. "Geochronology." In Encyclopedia of Coastal Science, 467–72. Dordrecht: Springer Netherlands, 2005. http://dx.doi.org/10.1007/1-4020-3880-1_147.

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Albarede, Francis. "Geochronology." In Encyclopedia of Astrobiology, 1–11. Berlin, Heidelberg: Springer Berlin Heidelberg, 2022. http://dx.doi.org/10.1007/978-3-642-27833-4_639-4.

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Albarède, Francis. "Geochronology." In Encyclopedia of Astrobiology, 1156–66. Berlin, Heidelberg: Springer Berlin Heidelberg, 2023. http://dx.doi.org/10.1007/978-3-662-65093-6_639.

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Conference papers on the topic "Geochronology"

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Benedix, Gretchen, Anthony Lagain, Kevin Chai, Shiv Meka, Kostantinos Servis, Philip Bland, Christopher Norman, Martin Towner, Eleanor Sansom, and Seamus Anderson. "Planetary Geochronology Using Machine Learning." In Goldschmidt2020. Geochemical Society, 2020. http://dx.doi.org/10.46427/gold2020.165.

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Pu, Judy P., Samuel A. Bowring, Jahandar Ramezani, Paul Myrow, Timothy D. Raub, Ed Landing, Andrea Mills, Eben Blake Hodgin, and Francis A. Macdonald. "GEOCHRONOLOGY OF THE GASKIERS GLACIATION." In GSA Annual Meeting in Denver, Colorado, USA - 2016. Geological Society of America, 2016. http://dx.doi.org/10.1130/abs/2016am-286652.

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Anderson, F. S., K. Nowicki, and T. Whitaker. "In-situ Rb-Sr geochronology." In 2013 IEEE Aerospace Conference. IEEE, 2013. http://dx.doi.org/10.1109/aero.2013.6497158.

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Gold, D. ,. P. "New Tectonic Reconstructions of New Guinea Derived from Biostratigraphy and Geochronology." In Digital Technical Conference. Indonesian Petroleum Association, 2020. http://dx.doi.org/10.29118/ipa20-g-61.

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Abstract:
Biostratigraphic data from exploration wells in Papua, West Papua of Indonesia, Papua New Guinea and Australia were reviewed, revised and updated using modern stratigraphic interpretations. Revised stratigraphic interpretations were combined with zircon U-Pb geochronologic data to produce new tectonic reconstructions of the Indonesian provinces of West Papua and Papua. Zircon U-Pb geochronologic data used in this study include new results from the Papuan Peninsula, combined with existing datasets from West Papua, Papua New Guinea, eastern Australia and New Caledonia. Supplementary geochronologic data were used to provide independent validation of the biostratigraphic data. Findings from a compilation of biostratigraphic and zircon age data provide a framework to produce new tectonic models for the origin of New Guinea’s terranes. Two hypotheses are presented to explain observations from the biostratigraphic and geochronologic data. The ‘Allochthonous Terrane’ Model suggests that many of the terranes are allochthonous in nature and may have been derived from eastern Australia. The ‘Extended Rift’ Model suggests that the New Guinea Terranes may have been separated from north-eastern Australia by an elongate rift system far more extensive than previously described. These new tectonic models are essential for our geological understanding of the regional and can be used to drive successful petroleum exploration in this frontier area.
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Mahan, Shannon A. "LUMINESCENCE GEOCHRONOLOGY: PROGRESS, PRODUCTS, AND PREDICTIONS." In Rocky Mountain Section - 69th Annual Meeting - 2017. Geological Society of America, 2017. http://dx.doi.org/10.1130/abs/2017rm-293214.

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Maneiro, Kathryn, and Ethan Baxter. "DETRITAL GARNET GEOCHRONOLOGY: CHALLENGES AND OPPORTUNITIES." In GSA Connects 2023 Meeting in Pittsburgh, Pennsylvania. Geological Society of America, 2023. http://dx.doi.org/10.1130/abs/2023am-395746.

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Adetunji, A. "PETROLOGY AND GEOCHRONOLOGY OF IWO POTASSIC SYENITE." In SGEM2011 11th International Multidisciplinary Scientific GeoConference and EXPO. Stef92 Technology, 2011. http://dx.doi.org/10.5593/sgem2011/s01.129.

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Morgan, Leah E. "POTASSIUM ISOTOPIC VARIABILITY AND 40K-BASED GEOCHRONOLOGY." In GSA Annual Meeting in Phoenix, Arizona, USA - 2019. Geological Society of America, 2019. http://dx.doi.org/10.1130/abs/2019am-335382.

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Moser, Amy C., Bradley Hacker, Ryan K. Stoner, and George Gehrels. "DATING DYNAMIC RECRYSTALLIZATION: MICROSTRUCTURAL GEOCHRONOLOGY OF TITANITE." In GSA Annual Meeting in Phoenix, Arizona, USA - 2019. Geological Society of America, 2019. http://dx.doi.org/10.1130/abs/2019am-334604.

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Jicha, Brian R., and Brad S. Singer. "MULTI-COLLECTOR REVOLUTION IN 40AR/39AR GEOCHRONOLOGY." In GSA Annual Meeting in Denver, Colorado, USA - 2016. Geological Society of America, 2016. http://dx.doi.org/10.1130/abs/2016am-284281.

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Reports on the topic "Geochronology"

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Wodicka, N., J. B. Whalen, G. D. Jackson, and E. Hegner. Geochronology. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 2007. http://dx.doi.org/10.4095/223355.

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Wodicka, N., K. Breitsprecher, and J. B. Whalen. Geochronology. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 2007. http://dx.doi.org/10.4095/223370.

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Gordon, T. M. Geochronology in the Churchill Province. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 1989. http://dx.doi.org/10.4095/127276.

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Jackson, G. D., P. A. Hunt, W. D. Loveridge, and R. R. Parrish. Reconnaissance geochronology of Baffin Island, N.W.T. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 1990. http://dx.doi.org/10.4095/129079.

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Chisholm, Emma-Kate, Keith Sircombe, and David DiBugnara. Handbook of Geochronology Mineral Separation Laboratory Techniques. Geoscience Australia, 2014. http://dx.doi.org/10.11636/record.2014.046.

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Mortensen, J. K. Geology, Geochronology, and Placer Gold Sources, Klondike. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 1990. http://dx.doi.org/10.4095/131222.

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Joyce, N. L., P. Iraheta Muniz, D. A. Kellett, N M Rayner, and J. J. Ryan. Geochronology of the Klaza River area, Yukon. Natural Resources Canada/CMSS/Information Management, 2022. http://dx.doi.org/10.4095/321893.

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Currie, K. L., and W. D. Loveridge. Geochronology of retrogressed granulites from Wilson Lake, Labrador. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 1985. http://dx.doi.org/10.4095/120244.

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Bostock, H. H., O. Van Breemen, and W. D. Loveridge. Proterozoic geochronology in the Taltson Magmatic Zone, N.W.T. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 1987. http://dx.doi.org/10.4095/122751.

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Lecheminant, A. N. Mapping and Geochronology in the Baker Lake Region. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 1992. http://dx.doi.org/10.4095/133324.

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