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Now showing items 81-100 of 144
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(2001)We have determined slip rates on the most active reverse faults, reconstructed an extensive preorogenic erosion surface, constructed local and regional cross sections, and dated syntectonic Tertiary sedimentary rocks by ...
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(1990)Long-range controlled source seismic experiments yield detailed information about the velocity depth structure of the lower lithosphere. Between Ireland and Northern Britain three such profiles sample almost the same portion ...
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(1994)Petroleums and bitumens from Early Proterozoic (≈ 1800 Ma) to Miocene (≈ 15 Ma) age marine strata contain 24-isopropylcholestanes, a novel group of C30 steroids. The abundance of these compounds, relative to 24-n-propylc ...
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(2002)This paper presents new paleomagnetic results on Cenozoic rocks from northern central Asia. Eighteen sites were sampled in Pliocene to Miocene clays and sandy clays of the Zaisan basin (southeastern Kazakhstan) and 12 sites ...
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(1994)We have carried out structural and paleomagnetic studies in the Tadzhik depression in order to evaluate the main features of the Alpine tectonics of this area. About 340 cores from 43 sites of Lower Cretaceous red beds ...
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(2000)Cenozoic coal-bearing deposits of the Verkhnyaya Zeya basin are of economic interest in the basin marginal areas, where some beds are suitable for open mining of brown coal. The exploratory work at the Snezhnogorskii coal ...
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(1999)A study of crustal xenoliths from Cenozoic alkaline basalts revealed that almost all of the samples from the Baikal Rift Zone and roughly half of the collection of Mongolian xenoliths had been involved in partial melting. ...
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(1995)Abundant spinel peridotite xenoliths occur in late Cenozoic alkali basaltic rocks in the Sikhote-Alin region at the Pacific margin of the Asian continent. Major- and trace-element compositions of representative peridotite ...
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(2003)Diffuse Cenozoic volcanism in Mongolia forms part of a widespread tectono-magmatic province that extends from NE China to Lake Baikal, Siberia. Mafic lavas from the Gobi Altai, southern Mongolia (33 Ma) and Hangai, central ...
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(1992)The composition and structural features of megacrystals of garnets, ilmenites, monoclinic pyroxenes, K-Na-feldspars occurring as inclusions in the Cenozoic alkaline basalts of Mongolia have been studied by means of X-ray ...
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(2003)Various geothermometers were used to determine the physicochemical conditions (temperature, pressure, and oxygen fugacity) of crystallization of Late Cenozoic volcanic rocks in the Lesser Caucasus. The first data are ...
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(2004)Thirteen time interval maps were constructed, which depict the Triassic to Neogene plate tectonic configuration, paleogeography and general lithofacies of the southern margin of Eurasia. The aim of this paper is to provide ...
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(2003)The nature of Re-platinum-group element (PGE; Pt, Pd, Ir, Os, Ru) transport in the marine environment was investigated by means of marine sediments at and across the Cretaceous-Tertiary boundary (KTB) at two hemipelagic ...
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(1988)Intermontane basins with high ore potential, formed during Mesozoic-Cenozoic tectonomagmatic regeneration, constitute a broad belt in central Asia between the Siberian and the Chinese-Korean cratons, extending from the Sea ...
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(2002)The Cenozoic intracontinental Teletsk basin in the Central Asian Altai Mountains is composed of a complexly structured northern and a more simple southern sub-basin. These sub-basins formed in two distinct kinematic stages ...
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(2006)Diagenesis of bone during fossilization is pervasive, however, the extent of this process varies with depositional environment. This study quantifies diagenesis of shark vertebral centra through analysis of a suite of ...
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(2001)A series of five Cenozoic atmospheric general circulation model (AGCM) experiments has been performed using a new set of paleogeographic reconstructions for 55, 40, 33, 20 and 14 Ma. The five continental reconstructions ...
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(2000)Radiolarian productivity pulses and related radiolarite deposition are phenomena difficult to understand from an exclusively actualistic viewpoint. Evolutionary selection pressure among silica-secreting marine plankton, ...
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(1988)During the past 10 years, about 150 scientists in 25 countries have collaborated under the auspices of the International Geological Correlation Programme Project No. 148: Evaluation and Development of Quantitative ...
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(2003)In northeastern Russia, reconnaissance analysis of the Anadyrsky and Khatyrsky sedimentary basins indicates that oil and gas fields were formed where strata of potential reservoir quality are present, and faults or zones ...
Now showing items 81-100 of 144