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Now showing items 61-80 of 114
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(1991)A stable and well defined magnetization with D = 350°, I = 55.5° and alpha95 = 4°, carried by hematite, is isolated in the red beds of the Tajik basin. The fold test is positive (99% probability) and this magnetization ...
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(2001)Palynological characteristics of Eocene-Miocene deposits of the Tatar Strait coast between the Son'e and Dembi bays (eastern Sikhote Alin) are presented. The study spore-and-pollen assemblages and plant imprints show that ...
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(2001)The paper discusses the composition of organic-walled phytoplankton, spores, and pollen from the middle Eocene Kuma Horizon and its age analogues in adjacent parts of the East European platform, Scythian, and Turan plates. ...
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(1999)The detailed biostratigraphic subdivision of a complete and well-exposed Paleogene-Miocene section in the Ciscaucasia is substantiated on the basis of organic-walled phytoplankton, spores, and pollen. The distinguished ...
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(2004)The provenance and tectonic setting of the sediments and rare cobbles from the accretionary wedge on Karaginski Island were examined. This study provides a picture of the nature of the NE Asian paleomargin in the middle ...
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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)Carbonate material of the glauconite-bearing horizon underwent intensive recrystallization during early diagenesis, and that glauconite is a product of that very stage of early diagenesis, and that glauconite is a product ...
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(1995)A numerical model which describes oxygen isotope exchange during burial and recrystallization of deep-sea carbonate is used to obtain information on how sea surface temperatures have varied in the past by correcting measured ...
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(2003)Prominent negative δ13C excursions characterize several past intervals of abrupt (<100 kyr) environmental change. These anomalies, best exemplified by the >2.5‰ drop across the Paleocene/Eocene thermal maximum (PETM) ca. ...
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(2006)The sediment composition and sedimentation conditions of Maastrichtian and Danian deposits in the vast territory of the Russian plate and adjacent regions of North Eurasia were studied. The succession of Late Cretaceous ...
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(2016)The Huadian basin is a small, explored, coal and oil shale-bearing, Cenozoic fault basin in the middle part of the Fushun-Mishan Fault Zone, northeastern China. The basin primarily consists of the Eocene Huadian Formation ...
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(2003)The silicon isotope composition (30Si) of biogenic opal provides a view of the silica cycle at times in the past. Reconstructions require the knowledge of silicon isotope fractionation during opal biomineralization. The ...
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(2004)In several recent papers, M.-P. Aubry et al. have argued that “Hedbergian” principles of chronostratigraphy are being violated by the International Commission on Stratigraphy (ICS) when selecting Global Stratotype Sections ...
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(2002)Melt droplets formed by the impact of a large meteorite impact event(s) have been found in upper Eocene marine sediments from the Atlantic, Pacific, and Indian oceans. The number of discreet impacts that occurred to form ...
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(2001)Foraminiferal assemblages from the Belaya Glina basin, which extended from the Black Sea to the Aral-Turgai region and eastern Central Asia, and from the inner seas of Transcaucasia are analyzed. The assemblages mainly ...
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(1998)Data on stratigraphy and foraminifers from the Paleocene and Eocene deposits in western Siberia are correlated and the boundaries between the two series are verified. New results for boreholes 1, 2, 3, and 4 on the Kaimysov ...
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(2003)The increasing effects of African–Eurasian convergence during the Tertiary resulted in the uplift and emergence of the Northern and Southern Peri-Tethys platforms. Palaeogeographic maps covering six selected time slices, ...
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(2001)Application of the lag-time multiple impacts hypothesis [Poag, 1997b. Palaios 12, 582–590; Poag et al., 2001. Columbia Univ. Press] to the Late Devonian leads to the prediction that the Frasnian–Famennian pulsed extinctions ...
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(2002)The earliest and most primitive shrew, Soricolestes soricavus gen. et sp. nov. from the Middle Eocene Khaychin Formation of the Khaychin-Ula II locality, Mongolia, is described. Soricolestes has typical soricid lower molars ...
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(2004)The Bartonian Age of subtropical small-leaved fossil flora from green clay members of the Tavda Formation, the Pavlodar area near Irtysh River, is substantiated for the first time based on dinocysts detected in outcrops ...
Now showing items 61-80 of 114