Готові списки джерел за темами / Geochronological

Добірка наукової літератури з теми "Geochronological"

Автор: Grafiati
Опубліковано: 10 грудня 2022
Оновлено: 28 січня 2023

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Статті в журналах з теми "Geochronological"

1

DuRoss, Christopher B., Ryan D. Gold, Harrison J. Gray, and Sylvia R. Nicovich. "Portable optically stimulated luminescence age map of a paleoseismic exposure." Geology 50, no. 4 (January 11, 2022): 470–75. http://dx.doi.org/10.1130/g49472.1.

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Abstract The quality and quantity of geochronologic data used to constrain the history of major earthquakes in a region exerts a first-order control on the accuracy of seismic hazard assessments that affect millions of people. However, evaluations of geochronological data are limited by uncertainties related to inherently complex depositional processes that may vary spatially and temporally. To improve confidence in models of earthquake timing, we use a high-density suite of radiocarbon and optically stimulated luminescence (OSL) ages with a grid of 342 portable OSL samples to explore spatiotemporal trends in geochronological data across an exemplary normal fault colluvial wedge exposure. The data reveal a two-dimensional age map of the paleoseismic exposure and demonstrate how vertical and horizontal trends in age relate to dominant sedimentary facies and soil characteristics at the site. Portable OSL data provide critical context for the interpretation of 14C and OSL ages, show that geochronologic age boundaries between pre- and post-earthquake deposits do not match stratigraphic contacts, and provide the basis for selecting alternate Bayesian models of earthquake timing. Our results demonstrate the potential to use emergent, portable OSL methods to dramatically improve paleoseismic constraints on earthquake timing.
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2

Sircombe, K. N. "Standardising geochronological data." Geochimica et Cosmochimica Acta 70, no. 18 (August 2006): A594. http://dx.doi.org/10.1016/j.gca.2006.06.1102.

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3

XIAO, LING-LING, GUO-DONG WANG, HAO WANG, ZONG-SHENG JIANG, CHUN-RONG DIWU, and CHUN-MING WU. "Zircon U–Pb geochronology of the Zanhuang metamorphic complex: reappraisal of the Palaeoproterozoic amalgamation of the Trans-North China Orogen." Geological Magazine 150, no. 4 (April 30, 2013): 756–64. http://dx.doi.org/10.1017/s001675681300006x.

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AbstractAmphibolites and metapelites exposed in the Zanhuang metamorphic complex situated in the south-middle section of the Trans-North China Orogen (TNCO) underwent upper-amphibolite-facies metamorphism and record clockwise P–T paths including retrograde isothermal decompression. High-resolution zircon U–Pb geochronological analyses indicate that the metamorphic peak occurred during ~ 1840–1860 Ma, which is in accordance with the ubiquitous metamorphic ages of ~ 1850 Ma retrieved by miscellaneous geochronologic methods throughout the metamorphic terranes of the northern TNCO, confirming that the south-middle section of the TNCO was involved in the amalgamation of the Eastern and Western Blocks of the North China Craton during the Palaeoproterozoic.
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4

Popov, Daniil V. "Short communication: On the potential use of materials with heterogeneously distributed parent and daughter isotopes as primary standards for non-U–Pb geochronological applications of laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS)." Geochronology 4, no. 1 (June 15, 2022): 399–407. http://dx.doi.org/10.5194/gchron-4-399-2022.

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Abstract. Many new geochronological applications of laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS) have been proposed in recent years. One of the problems associated with this rapid growth is the lack of chemically and isotopically homogeneous matrix-matched primary standards to control elemental fractionation during LA-ICP-MS analysis. In U–Pb geochronological applications of LA-ICP-MS this problem is often addressed by utilising matrix-matched primary standards with variable chemical and isotopic compositions. Here I derive a set of equations to adopt this approach for non-U–Pb geochronological applications of LA-ICP-MS.
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5

Harris, N. B. W., and J. Bartlett. "Geochronological framework of South India." Journal of Southeast Asian Earth Sciences 14, no. 5 (December 1996): IV—V. http://dx.doi.org/10.1016/s0743-9547(97)88149-4.

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6

Harris, N. B. W., and J. Bartlett. "Geochronological framework of South India." Journal of African Earth Sciences 23, no. 2 (August 1996): IV—V. http://dx.doi.org/10.1016/s0899-5362(97)86870-4.

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7

Harris, N. B. W., and J. Bartlett. "Geochronological framework of South India." Journal of South American Earth Sciences 10, no. 3-4 (May 1997): IV—V. http://dx.doi.org/10.1016/s0895-9811(97)90002-x.

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8

Pellenbarg, Robert E., Eric C. DeCarlo, Michael E. Boyle, and Robert A. Lamontagne. "Sedimentary Siloxanes: A Geochronological Study." Applied Organometallic Chemistry 11, no. 4 (April 1997): 345–49. http://dx.doi.org/10.1002/(sici)1099-0739(199704)11:4<345::aid-aoc588>3.0.co;2-x.

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9

Ivakin, R., Y. Ivakin, and S. Potapichev. "Refinement Algoritm of Hypotheses Testing Research Based on Geochronological Tracking." Proceedings of Telecommunication Universities 6, no. 1 (2020): 86–93. http://dx.doi.org/10.31854/1813-324x-2020-6-1-86-93.

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Geochronological tracking is an effective information technology for digital cartographic spatial data sets processing. It is widely known in retrospective patterns research about geographic relocation of figures, or any other units for a given time interval. Software component of geochronological tracking is becoming one the most popular GIS-integrated applications. The article presents the basic provisions for the algorithmization of the geochronological tracking procedure for statistical testing of retrospective studies hypotheses. We can observe the results of solving this optimization problem in a general form and in a number of the most typical variants. The obtained results of solving the optimization problem are interpreted in terms of the retrospective studies subject area. There are shown the ways of further practical application of the optimized algorithm in the tasks of modern logistics, data mining and formalized knowledge.
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10

Tassinari, Colombo C. G., and Moacir J. B. Macambira. "Geochronological provinces of the Amazonian Craton." Episodes 22, no. 3 (September 1, 1999): 174–82. http://dx.doi.org/10.18814/epiiugs/1999/v22i3/004.

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Дисертації з теми "Geochronological"

1

Milne, Alastair John. "The pre-Mesozoic geological evolution of Graham Land, Antarctica." Thesis, Open University, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.253302.

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2

Boygle, Jane E. "Tephra in lake sediments : an unambiguous geochronological marker?" Thesis, University of Edinburgh, 1995. http://hdl.handle.net/1842/20193.

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This thesis has three aims: (1) to construct tephrochronologies on large and small scales at sites in Sweden and Iceland; (2) to assess the effects of erosional and depositional processes on the nature and distribution of tephra in the sedimentological record; (3) to use these case studies to propose a model of the deposition of tephra in lakes. The Swedish Timescale based on the annually laminated sediments (varves) has recently been linked to the present. To test the chronology, traces of volcanic glass (tephra) from five historical eruptions of Icelandic volcanoes were sought within relevant sections of the varve deposits. Difficulties in isolating and identifying tephra to define isochrones in distal deposits led to the adoption of an integrated catchment and lake basin sampling strategy to assess the processes which affect the temporal and spatial distribution of tephra in lakes. A detailed tephrochronology of Svínavatn, a lake in northern Iceland, was constructed by identifying and correlating 95 tephra deposits from five lake cores and twelve profiles situated in the lowland peats, hillslopes and delta areas of the catchment. The tephra record from each site was highly variable due to both uneven fallout of the tephra following the eruption, and later reworking of the deposits in the lake and the catchment. The environmental changes of Svínavatn and its catchment were reconstructed using tephra as a geomorphological tracer. The peats and soils of the catchment were stable throughout most of the Holocene until the deposition of Hekla 3 (2800 yBP). Repeating layers of reworked Hekla and Katla tephra after this period at several terrestrial and lacustrine sites reflect increasing episodic instability of the catchment and the effects of this disturbance on the lake record. Until the arrival of Norse settlers in the 9th century, much of this disturbance was linked to climate and vegetation changes around the catchment. Significant, but temporally discrete, secondary inputs of H3 and H4 (3800 yBP) into the lake occur several thousand years after the original airfall.
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3

Coombs, Henry. "Geochemical and geochronological constraints on terrane definition in Mexico." Thesis, Cardiff University, 2016. http://orca.cf.ac.uk/94626/.

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Mexico has played host to a variety of igneous events since the Paleozoic, relating to the formation and subsequent breakup of the supercontinent Pangaea, as well as to intermittent subduction along its western coast. Through analysis of the crystalline basement of the Western Gulf of Mexico this project has introduced the first detailed tectonomagmatic model relating to the pre- and post- amalgamation of Pangaea in Mexico. Additionally, post-Pangaea rifting has been investigated in the extensional basin of the northern Cuicateco terrane. This study has identified three igneous events in the crystalline basement of the Western Gulf of Mexico: 1) An Early Permian (294 Ma) continental arc that formed on Gondwana during the final amalgamation of Pangaea. These rocks appear to be related to Late Carboniferous-Early Permian plutons found in the Oaxaca area of Southern Mexico (Ortega-Obregon et al., 2014). 2) Late Permian-Early Triassic (274- 243 Ma) anatectic magmatism that formed in a post-collisional environment after the final amalgamation of Pangaea. These rocks appear to be related to plutons of comparable age found in the Oaxaca area and Chiapas Massif of Southern Mexico (Weber et al., 2005; Ortega-Obregon et al., 2014). 3) Early Jurassic (189-164 Ma) continental arc rocks that likely relate to the Nazas arc system that existed across Mexico at the time (Dickinson & Lawton, 2001). Major element and trace element geochemistry, used in conjunction with Hf and Nd isotopic analysis have revealed that the Early Cretaceous units of the northern Cuicateco terrane formed in a subduction related environment, likely associated with the closure of the Arperos oceanic basin. Extrusive and intrusive arc rocks have been dated between 140-133 Ma (Xonamanca Formation and Teotitlán Migmatitic Complex); with subduction of the Arperos ridge later causing extension (Chivillas Formation). Spreading in the Chivillas Formation stopped in the Earliest Aptian, likely due to the collision of the Guerrero terrane with Mexico.
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4

Bendall, Betina R. "Metamorphic and geochronological constraints on the Kimban Orogeny, Southern Eyre Peninsula /." Title page, abstract and contents only, 1994. http://web4.library.adelaide.edu.au/theses/09SB/09sbb458.pdf.

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5

Whattam, Scott A. "Evolution of the Northland ophiolite, New Zealand: geochemical, geochronological and palaeomagneticconstraints." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2003. http://hub.hku.hk/bib/B31244890.

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6

Bowtell, Sophie Ann. "Geochronological and geochemical studies of Zermatt-Saas Fee Ophiolite, Western Alps." Thesis, University of Leeds, 1991. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.305487.

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7

Bailey, Simon David. "A geophysical and geochronological assessment of coastal dune evolution at Aberffraw." Thesis, Birkbeck (University of London), 2004. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.483553.

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8

Pu, Judy (Judy P. ). "Geochronological constraints on the Trinity diamictite in Newfoundland : Implications for Ediacaran glaciation." Thesis, Massachusetts Institute of Technology, 2016. http://hdl.handle.net/1721.1/114096.

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Thesis: S.B., Massachusetts Institute of Technology, Department of Earth, Atmospheric, and Planetary Sciences, 2016.
Cataloged from PDF version of thesis.
Includes bibliographical references (pages 21-26).
The Avalon terrane in Newfoundland includes the Ediacaran Gaskiers Formation, which has been associated with a Snowball glaciation event. The complicated regional stratigraphy and lack of precise geochronological constraints has made it difficult to determine the spatial and temporal extent of the Gaskiers glaciation. Recent recognition of a diamictite facies on the nearby Bonavista Peninsula correlative with the Gaskiers diamictite has allowed for new, high-precision geochronological constraints on the Gaskiers glaciation and constrains the duration of the event to less than 390 ±320 kyr. The Snowball Earth hypothesis requires that glaciation continued for several millions of years so that CO2 could build up to high enough levels in the atmosphere for catastrophic deglaciation; the short duration of the Gaskiers event makes it unlikely to have been a Snowball event. Further geochronological studies are needed to determine whether the Gaskiers glaciation was a discrete event or if it was a glacial maximum in a longer Ediacaran ice age.
by Judy Pu.
S.B.
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9

Weller, Owen M. "An integrated metamorphic and geochronological study of the south-eastern Tibetan plateau." Thesis, University of Oxford, 2014. http://ora.ox.ac.uk/objects/uuid:f4104b43-389a-4d54-bd7b-ba3fc0e8ab95.

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The Tibetan plateau is a vast, elevated region located in central Asia, which is underlain by the thickest crust known on Earth (up to 90 km). An outstanding question of importance to many fields within geology is how and why did the Tibetan plateau form? Models attribute the growth of the plateau to a consequence of the ongoing India-Asia continental collision, but differ in the details of how the crustal thickening was accommodated: was it by underplating of Indian lower crust or by homogeneous shortening? High-grade metamorphic rocks sampled from the region potentially hold the key to answering this question, as they contain a record of past tectonic events that can discriminate between the various proposed models. This record can be decoded by integrating field, thermobarometric and geochronological techniques, to elucidate a detailed thermotectonic understanding of a region. This methodology was applied to three case studies, each of which targeted rare tectonic windows into the mid-crust of the plateau. These regions comprise Danba in eastern Tibet, Basong Tso in south-eastern Tibet and the Western Nyainqentanglha in southern Tibet. Each case study documents previously unreported metamorphic events that have allowed original interpretations to be made regarding tectonic evolution: in Danba, all metamorphism is shown to be early Jurassic; in Basong Tso, two metamorphic belts are documented that reveal a late Triassic--early Jurassic orogenic event; and in the Western Nyainqengtanglha, Cretaceous--Neogene magmatism is shown to overprint late Triassic metamorphism. Integration of the results has enabled commentary on the large scale evolution of the Tibetan plateau from the Permian until the present day, and even hinted at its future. The results indicate that the closure of the Paleotethys played an important role in the construction of the Tibetan plateau, and suggest that homogeneous crustal thickening is not a viable model for the documented exposure levels.
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10

Helbing, Heiko. "No suture in the Sardinian Variscides a structural, petrological and geochronological analysis /." Tübingen : Univ, 2003. http://www.bsz-bw.de/cgi-bin/xvms.cgi?SWB10733113.

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Книги з теми "Geochronological"

1

Loveridge, W. D. Geochronological studies of Precambrian rocks from the southern district of Keewatin. [Ottawa]: Energy, Mines, and Resources Canada, 1988.

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2

Loveridge, W. D. Geochronological studies of Precambrian rocks from the southern district of Keewatin. Ottawa, Ont: Geological Survey of Canada, 1988.

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3

Bendall, Charles Alan. A geochronological, structural and metamorphic study of parts of the Central and South-west Dalradian. Manchester: University of Manchester, 1995.

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4

Curtis, Peter. Geological and geochronological investigations of selected alkali igneous complexes in the Nuba Mountains, Southern Kordofan, Sudan. Hannover: Bundesanstalt für Geowissenschaften und Rohstoffe, 1985.

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5

Hilgen, Frederik Johan. Astronomical forcing and geochronological application of sedimentary cycles in the Mediterranean Pliocene-Pleistocene =: Astronomische forcering en geochronologische toepassing van sedimentaire cycli in het Mediterrane Plioceen-Pleistoceen. [Utrecht: Faculteit Aardwetenschappen der Rijksuniversiteit te Utrecht, 1991.

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6

Harlan, Stephen S. Paleomagnetic and ⁴⁰Ar/³⁹Ar geochronologic data from Late Proterozoic mafic dikes and sills, Montana and Wyoming. Washington: U.S. G.P.O., 1997.

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7

Geochronological studies in central East Greenland: (four papers). København: Grønlands Geologiske Undersøgelse, 1987.

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8

O'Connor, John M. The evolution of south Atlantic hot spot systems: An integrated geochronological and geochemical investigation. 1991.

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9

Conversion of the Radiometric Age Data Bank (RADB) to the National Geochronological Data Base (NGDB). Denver, Colo: U.S. Dept. of the Interior, U.S. Geological Survey, 1993.

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10

Chernet, Tadiwos. Petrological, geochemical and geochronological investigation of volcanism in the northern Main Ethiopian Rift-southern Afar transition region. 1995.

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Частини книг з теми "Geochronological"

1

Elburg, Marlina A. "Geochronological Dating." In Isotopic Analysis, 235–74. Weinheim, Germany: Wiley-VCH Verlag GmbH & Co. KGaA, 2012. http://dx.doi.org/10.1002/9783527650484.ch9.

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2

Fullagar, Paul D. "Geochronological studies of fault-related rocks." In Proceedings of the International Conferences on Basement Tectonics, 37–50. Dordrecht: Springer Netherlands, 1992. http://dx.doi.org/10.1007/978-94-011-1614-5_4.

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3

Köppel, V. "The Lepontine Area, a Geochronological Summary." In Pre-Mesozoic Geology in the Alps, 345–48. Berlin, Heidelberg: Springer Berlin Heidelberg, 1993. http://dx.doi.org/10.1007/978-3-642-84640-3_20.

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4

Eizenhöfer, Paul R. "Geochronological Entropy, and Its Relevance to Age Measurements." In Springer Theses, 81–98. Singapore: Springer Singapore, 2019. http://dx.doi.org/10.1007/978-981-32-9200-0_5.

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5

Yu, Miao. "Geochronological and Geochemical Constraints on the Galinge Skarn Deposit." In Springer Theses, 189–211. Singapore: Springer Singapore, 2019. http://dx.doi.org/10.1007/978-981-10-7907-8_8.

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6

Ivakin, Yan, and Sergei Potapychev. "Geochronological Tracking: Specialized GIS-Analysis Tool for Historic Research." In Lecture Notes in Geoinformation and Cartography, 259–69. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-59539-9_19.

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7

Ruiz, Paulo, Sara Mana, Esteban Gazel, Gerardo J. Soto, Michael J. Carr, and Guillermo E. Alvarado. "Geochemical and Geochronological Characterisation of the Poas Stratovolcano Stratigraphy." In Poás Volcano, 13–43. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-319-02156-0_2.

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8

Seydoux-Guillaume, Anne-Magali, Bernard Bingen, Valérie Bosse, Emilie Janots, and Antonin T. Laurent. "Transmission Electron Microscope Imaging Sharpens Geochronological Interpretation of Zircon and Monazite." In Microstructural Geochronology, 261–75. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2017. http://dx.doi.org/10.1002/9781119227250.ch12.

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9

Kumagai, Hidenori, Hiromi Watanabe, Takuya Yahagi, Shigeaki Kojima, Shun’ichi Nakai, Shin Toyoda, and Jun-ichiro Ishibashi. "Evaluating Hydrothermal System Evolution Using Geochronological Dating and Biological Diversity Analyses." In Subseafloor Biosphere Linked to Hydrothermal Systems, 49–59. Tokyo: Springer Japan, 2014. http://dx.doi.org/10.1007/978-4-431-54865-2_5.

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10

Lopes, C., A. Ferreira, M. Chichorro, M. F. Pereira, J. A. Almeida, and A. R Solá. "Chroniberia: The Ongoing Development of a Geochronological GIS Database of Iberia." In Springer Geology, 733–36. Cham: Springer International Publishing, 2014. http://dx.doi.org/10.1007/978-3-319-04364-7_138.

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Тези доповідей конференцій з теми "Geochronological"

1

E. Kulinkovich, A., and I. A. Kulinkovich. "Geochronological calendar and problems anthropogenesis." In 9th EAGE International Conference on Geoinformatics - Theoretical and Applied Aspects. Netherlands: EAGE Publications BV, 2010. http://dx.doi.org/10.3997/2214-4609.201402839.

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2

Rojas-Agramonte, Yamirka, Andrés Felipe Rodríguez Corcho, Johana Andrea Barrera Gonzáles, Daniel Guarín Estrada, Maria Emilie Daroca, Sofia Margarita Delgado Balaguera, María Paula Marroquín Gómez, et al. "THE COLOMBIAN GEOCHRONOLOGICAL DATABASE (CGD)." In GSA Annual Meeting in Indianapolis, Indiana, USA - 2018. Geological Society of America, 2018. http://dx.doi.org/10.1130/abs/2018am-319817.

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3

Ramezani, Jahandar, David E. Fastovsky, Max C. Langer, and Samuel A. Bowring. "GEOCHRONOLOGICAL PERSPECTIVES ON THE TRIASSIC RISE OF DINOSAURS." In GSA Annual Meeting in Denver, Colorado, USA - 2016. Geological Society of America, 2016. http://dx.doi.org/10.1130/abs/2016am-287550.

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4

Ivakin, Yan. "GIS TOOL FOR GEOCHRONOLOGICAL TRACKING AND HISTORICAL DATA ANALYSIS." In 17th International Multidisciplinary Scientific GeoConference SGEM2017. Stef92 Technology, 2017. http://dx.doi.org/10.5593/sgem2017/21/s08.116.

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5

Konstantinov, Evgeniy, Vera Ponomareva, Natalia Karpukhina, Elena Mazneva, Maksim Portnyagin, Egor Zelenin, and Anna Novikova. "Tephra and Cryptotefra on the East European Plain - new geochronological perspectives." In The Earliest Paleolithic at Kostenki: Chronology, Stratigraphy, Cultural Diversity (on the 140th anniversary of archaeological research in the Kostenki-Borshchevo area). Institute for the History of Material Culture Russian Academy of Sciences, 2019. http://dx.doi.org/10.31600/978-5-9273-2863-5-2019-85-89.

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6

Lingbloom, Joshua, Jonathan E. Harvey, and Mary L. Gillam. "GEOCHRONOLOGICAL CONSTRAINTS ON THE PERINS PEAK LANDSLIDE COMPLEX NEAR DURANGO, COLORADO." In 72nd Annual GSA Rocky Mountain Section Meeting - 2020. Geological Society of America, 2020. http://dx.doi.org/10.1130/abs/2020rm-346763.

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7

McLaughlin, Win N. F., Samantha S. B. Hopkins, and Ray J. Weldon. "GEOCHRONOLOGICAL EVALUATION OF NEOGENE SYNTECTONIC SEDIMENTS FROM THE KOCHKOR BASIN, KYRGYZSTAN." In GSA Annual Meeting in Seattle, Washington, USA - 2017. Geological Society of America, 2017. http://dx.doi.org/10.1130/abs/2017am-307977.

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8

Cole, R., A. Stork, W. Hood, and M. Heizler. "Geochemical and geochronological characterization of Grand Mesa Volcanic Field, western Colorado." In 68th Annual Fall Field Conference. New Mexico Geological Society, 2017. http://dx.doi.org/10.56577/ffc-68.103.

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9

Ivanova, Anna, and Ekaterina Salnikova. "U-Pb (CA-ID-TIMS) geochronological studies of the metamict zircons." In Goldschmidt2021. France: European Association of Geochemistry, 2021. http://dx.doi.org/10.7185/gold2021.5236.

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Bagci, Metin. "GEOCHEMICAL AND GEOCHRONOLOGICAL (Rb/Sr) PROPERTIES OF THE GUNYUZU GRANITOID (SIVRIHISAR, ESKISEHIR)." In SGEM2012 12th International Multidisciplinary Scientific GeoConference and EXPO. Stef92 Technology, 2012. http://dx.doi.org/10.5593/sgem2012/s01.v1007.

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Звіти організацій з теми "Geochronological"

1

Skulski, T., and M. Villeneuve. Geochronological compilation of the Rae and Hearne provinces. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 1999. http://dx.doi.org/10.4095/210204.

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2

Skulski, T., and M. Villeneuve. Geochronological compilation of the Superior Province, Manitoba, Ontario, Quebec. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 1999. http://dx.doi.org/10.4095/210235.

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3

Huston, D. L., M. Norman, R. Maas, D. Miggins, D. S. Thiede, P. Vasconcelos, R. Creaser, et al. Geochronological studies of selected Australian mineral deposits, 2003–2020. Geoscience Australia, 2022. http://dx.doi.org/10.11636/record.2022.011.

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4

Huston, D. L., M. Norman, R. Maas, D. Miggins, D. S. Thiede, P. Vasconcelos, R. Creaser, et al. Geochronological studies of selected Australian mineral deposits, 2003–2020. Geoscience Australia, 2022. http://dx.doi.org/10.11636/record.2022.011.

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5

Mortensen, J. K. Geochronological and Isotopic Studies in North China Platform: Progress Report. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 1992. http://dx.doi.org/10.4095/133382.

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6

Rayner, N., D. J. Scott, N. Wodicka, and A. Kassam. New geochronological constraints from Mill, Salisbury, and Nottingham islands, Nunavut. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 2008. http://dx.doi.org/10.4095/226075.

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7

Loveridge, W. D., K. E. Eade, and R. W. Sullivan. Geochronological studies of Precambrian rocks from the southern District of Keewatin. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 1988. http://dx.doi.org/10.4095/125171.

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8

Powell, J. W., D. I. Pana, C. D. Card, E. G. Potter, V. Tschirhart, and N. Joyce. New geochronological insights into the Taltson Domain of northern Alberta and Saskatchewan. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 2018. http://dx.doi.org/10.4095/306600.

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9

Regis, D., and M. Sanborn-Barrie. Delimiting the extent of 'Boothia terrane' crust, Nunavut: new U-Pb geochronological results. Natural Resources Canada/CMSS/Information Management, 2022. http://dx.doi.org/10.4095/330703.

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Анотація:
The Boothia Peninsula - Somerset Island region of north-central Nunavut is a frontier region (70-74°N, 94°W) long considered as part of Rae craton. Recent field mapping and acquisition of isotopic (U-Pb, Sm-Nd) data as part of the GEM-2 Boothia-Somerset project allowed this region's exposed Precambrian bedrock to be better characterized with respect to petrology and litho-geochemistry, and to be more extensively and more precisely time-calibrated. The discovery of unique, possibly exotic, basement characterized by a ca. 2.55-2.51 Ga TTG suite overlain by ca. 2.5 Ga metasedimentary rocks, cut by 2.49- 2.48 Ga plutons, are all atypical components of the Archean Rae crust. This new knowledge and the hint of similar 'Boothia terrane' crust south of Boothia Peninsula (Ryan et al., 2009), east of the Queen Maud block (Davis et al., 2014) in central Nunavut, and in northernmost Saskatchewan (Cloutier et al., 2021), raised the possibility this terrane may extend &amp;gt;1600 km across north-central Canada. During the foundational year of GEM-GeoNorth, the extent of Boothia terrane crust was explored through legacy samples collected during the 2012 GEM Frontiers' transect across mainland Nunavut. As part of this new study, field descriptions, photographic records and legacy samples were examined, and new U-Pb zircon geochronology was acquired. The new data and knowledge were used to: i) identify new components of Boothia terrane on the mainland southwest of Boothia Peninsula; ii) further distinguish this crust from that of Rae affinity; and iii) better constrain the depositional age of Sherman Group metasedimentary rocks.
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10

Davis, W. J., and E. Zaleski. Geochronological investigations of the Woodburn Lake group, western Churchill Province, Northwest Territories: preliminary results. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 1998. http://dx.doi.org/10.4095/210060.

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