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Now showing items 21-40 of 194
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(1989)We chose for investigaton the Koshabulak tectonic structure, within the Sultan-Sandzhar swell, which is one of the group of Pitnyak tectonic uplifts of the Bukhara Bench, which were formed during Hercynian time and continue ...
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(2003)Lithologies and stratigraphic relationships of late Quaternary core sediments were examined in three piston cores, recovered from the western Ulleung Basin. The approximately 8-m long cores consist of muddy sediments that ...
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(1989)Mud volcanoes occupy a special place among natural phenomena. First, in terms of the scale of discharges of carbonaceous gases from them, the acute stage of their eruption is comparable to surface lava eruptions from cone ...
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(1989)Both of the main morphological types of chromiferous 'upper mantle' amphiboles and micas, i.e. the interstitial and poikilitic, previously found in inclusions from alkalic basalts, have now been identified in ultramafic ...
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(2004)The specified on the basis of K-Ar data magmatic activity phases in manifestation time coincide with certain activity phases of other large latest-volcanism centers at Greater Caucasus - Elbrus and Kazbek. The initial ...
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(1999)A palynological analysis of the Baikal sediments from a 200 m deep borehole permitted tracing continuous climatic and vegetation changes in the Baikal region for the last 5 Ma (from the Early Pliocene). The sediment age ...
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(1989)Processes of hydrocarbon accumulation in oil and gas basins are controlled by various geologic bodies, including the so-called clinoforms, which certainly affect these processes. It is very important to determine the origin ...
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(1988)The Quaternary Shavaryn-Tsaram volcano (central Mongolia) is one of the richest known repositories of mantle nodules and megacrystals. Magnesial biotite, rhombic pyroxene, pyrope, sanidine and ilmenite have been found in ...
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(1997)The Late Cenozoic volcanic rocks of the East Sikhote Alin are believed to be Pliocene-Quaternary formations by most investigators, even though there is evidence that volcanic activity there began as early as the late ...
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(1997)The Late Cenozoic volcanic rocks of the East Sikhote Alin are believed to be Pliocene-Quaternary formations by most investigators, even though there is evidence that volcanic activity there began as early as the late ...
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(1997)A broad correspondence between long pollen sequences and the deep-sea oxygen isotope record has been noted for some time, but there has been little effort to explore just how similar the two types of evidence are in terms ...
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(1988)Geochemical study of plutonic xenoliths from different regions of the world not only allows the composition of the lithosphere there to be estimated, but also enables the evolution of the upper mantle during geologic time ...
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(2004)Distinct cyclicity in lithology and microfaunal distribution in sediment cores from the Mendeleev Ridge in the western Arctic Ocean (water depths ca. 1.5 km) reflects contrasting glacial/interglacial sedimentary patterns. ...
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(2001)The papers presented here form the Special Issue of Quaternary Science Reviews on European Quaternary Biostratigraphy. New and testable frameworks for the subdivision of Pleistocene time are proposed, based upon the evidence ...
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(2001)The deep structure of the Eurasia-Pacific transition zone was investigated under the Geotraverse International Project along the deep sections of the tectonosphere, including the lithosphere and the asthenosphere, based ...
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(2002)A biogeochemical flux paradigm is presented which provides a conceptual and numerical framework for reconstructing the dynamical and biogeochemical regimes of ancient tide-driven continental shelves. The paradigm links ...
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(2002)Seismic profiles and mollusks have been used to suggest that from ∼12 500 to 7000 yr BP, the Black Sea was an isolated freshwater lake containing potable water and implying a surface salinity of <1. According to Ryan and ...
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(1989)Our study of pyrope garnets in Quaternary terrace deposits showed that the distribution of silica concentrations in them could be described by a regular second-degree trend surface when it was plotted in MgO-Al2O3 and ...
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(2002)Fossil remains of 11 shrew species from the Bliznets cave (southern Primorie Region) are examined. The changes of shrew species composition from the Upper Pleistocene to the present days are traced. The relations between ...
Now showing items 21-40 of 194