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Now showing items 61-80 of 110
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(2021)В разрезе докембрия Хараулахского поднятия наименее измененные известняки уктинской и эсэлехской свит имеют минимальные отношение 87Sr/86Sr 0.70673-0.70715. В свою очередь, вышележащие нэлегерская и сиэтачанская свиты ...
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(2003)Between 1300 and 500 Ma the Neoproterozoic supercontinent Rodinia aggregated (1300–950 Ma), broke up (850–600 Ma) and a new supercontinent, Pannotia-Gondwana, formed (680–550 Ma). Only c. 11% of the preserved continental ...
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(2012)In this paper we present the results of a generalization of paleomagnetic data for the territory of the Siberian craton and its folded framing that were obtained during the last fifteen years. We propose a new version of ...
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(2003)Modern Tethyan, Mediterranean, and Pacific analogues are considered for several Appalachian, Caledonian, and Variscan terranes (Carolina, West and East Avalonia, Oaxaquia, Chortis, Maya, Suwannee, and Cadomia) that originated ...
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(2001)The turnover of water and 18O in the outer terrestrial sphere is investigated considering mantle degassing, subduction zone processes, hydrothermal circulation at spreading centers, seafloor alteration, and continental ...
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(2003)During the Neoproterozoic, a supercontinent commonly referred to as Rodinia, supposedly formed at ca. 1100 Ma and broke apart at around 800–700 Ma. However, continental fits (e.g., Laurentia vs. Australia–Antarctica, Greater ...
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(1998)Using the most reliable palaeomagnetic data from the Siberian Platform we have constructed an apparent polar wander (APW) path extending between 1100 Ma and 250 Ma. From this we derive the palaeo-latitudinal drift history ...
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(1996)In this collection of papers, we attempt to document, through interdisciplinary studies in southwest Mongolia, the interlinked evolution of the biosphere and lithosphere over the Neoproterozoic–Cambrian interval. In so ...
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(1996)This paper provides a framework for the stratigraphy and correlation of key sections through the Neoproterozoic–lower Cambrian of the Govi-Altay area, western Mongolia, studied by members of IGCP Project 303. Dzabkhan ...
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(2011)The Central Asian Orogenic Belt (CAOB) is widely recognized as a locus of Asia’s main growth during the Neoproterozoic–Paleozoic, but its evolution remains controversial. The views on the most enigmatic, late Neoproterozoic ...
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(2010)Existing views on the tectonic evolution of the Central Asian orogenic belt (CAOB) are highly controversial and the Neoproterozoic to Cambrian stages of this evolution remain the most enigmatic. However, the views on the ...
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(2003)The Central Asian fold belt (Urals–Mongolian belt in the Russian literature), which incorporates rock units derived from a variety of geodynamic settings, evolved the Palaeo-Asian Ocean (PAO) in the Neoproterozoic and ...
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(Федеральное государственное бюджетное учреждение науки Институт земной коры Сибирского отделения Российской академии наук, 2019)Eastern part of the Central Taimyr belt is composed of Precambrian rocks penetrated by granites of the Snezhnaya complex (845-825 million years) and later overlain by mid-Neoproterozoic sinpostorogenic sedimentary deposits ...
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(1999)Sr and C isotopic data obtained on stratigraphic suites of well-preserved marine limestone from Siberia, Namibia, Canada, Svalbard and East Greenland provide a relatively detailed first-order record of isotopic variation ...
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(1998)Sedimentary organic matter deriving from tubes of sabelliditids, vendotaenids, sapropelic films and kerogens was extracted by acid processing from Upper Vendian siliciclastic successions in the East European Platform. ...
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(Федеральное государственное бюджетное образовательное учреждение высшего образования «Московский государственный университет им. М. В. Ломоносова», 2018)Приводятся первые U-Pb изотопные данные о возрасте детритовых цирконов из метатерригенных пород румяничной свиты барминской серии, представляющей собой видимое основание докембрийского разреза Северного Тимана. U-Pb ...
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(2001)A new family, a new genus, and two new species of Metazoan (class Vendiamorpha, phylum Proarticulata) are described from the Upper Vendian of the Arkhangelsk Region. The body of the animal was composed of alternating ...
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(2004)The ‘Snowball Earth’ model of Hoffman et al. [Science 281 (1998) 1342] has stimulated renewed interest in the causes of glaciation in Earth history and the sedimentary, stratigraphic and geochemical response. The model ...
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(2013)We present results of combined in situ U–Pb dating of detrital zircons and zircon Hf and whole-rock Nd isotopic compositions for high-grade clastic metasedimentary rocks of the Slyudyansky Complex in eastern Siberia. This ...
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(2004)Oxygen isotope analysis and U-Pb dating were carried out on zircons from granite, granitic gneiss and eclogite in the Dabie-Sulu orogenic belt of east-central China. The results show a wide variation in zircon δ18O values ...
Now showing items 61-80 of 110