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Polyak, Leonid

Works: 5 works in 15 publications in 1 language and 918 library holdings
Roles: Editor
Publication Timeline
Publications about Leonid Polyak
Publications by Leonid Polyak
Most widely held works by Leonid Polyak
Radiocarbon ages from Novaya Zemlya, Russia, supplementary data to: Forman, Steven L; Lubinski, DJ; Polyak, Leonid; Miller, GH; Matishov, Gennady G; Tarasov, Gennadiy A (1999): Postglacial emergence and Late Quaternary glaciation on northern Novaya Zemlya, Arctic Russia. Boreas, 28(1), 133-145 by Steven L Forman( file )
in English and held by 1 library worldwide
Recent observations on postglacial emergence and past glacier extent for one of the least accessible areas in the Arctic, northern Novaya Zemlya are here united. The postglacial marine limit formed 5 to 6 ka is registered on the east and west coasts of the north island at 10? 1 and 18? 2 m aht, respectively. This modest and late isostatic response along with deglacial ages of>9.2 ka on adjacent marine cores from the northern Barents Sea indicate either early (>13 ka) deglaciation or modest ice sheet loading (<1500 m thick ice sheet) of Novaya Zemlya. Older and higher (up to 50 m aht) raised beaches were identified beneath a discontinuous glacial drift. Shells from the drift and underlying sublittoral sediments yield minimum limiting 14C ages of 26 to 30 ka on an earlier deglacial event(s). The only moraines identified are within 4 km of present glacier margins and reflect at least three neoglacial advances in the past 2.4 ka
The 2005 HOTRAX Expedition to the Arctic Ocean ( Computer File )
1 edition published in 2009 in English and held by 1 library worldwide
The 2005 HOTRAX expedition to the arctic ocean ( file )
1 edition published in 2009 in English and held by 0 libraries worldwide
Glaciated continental margins : an atlas of acoustic images by Thomas A Davies( file )
1 edition published in 1997 in English and held by 0 libraries worldwide
Late Cenozoic glaciation directly affected sedimentation on more than half the Earth's continental shelves. Ice continues to be a dominant influence on sedimentation around Greenland and Antarctica, and on the shelves facing the Arctic Ocean. The features of these shelves include true glacimarine features, i.e. those found in a marine environment in proximityto, or strongly under the influence of, ice, such as iceberg scours and pits, ice gouges and incisions, subglacial outwash deposits, and diamictons resulting from ice rafting. Also seen, because large areas of the shelves were exposed during the Pleistocene lowering of sea level, are terrestrial glacial and periglacial features, e.g. fluvial outwash valleys and associated deposits, tunnel valleys, drumlin fields and lodgement till, which have subsequently been submerged and modified by marine influences. <br/> Glaciated Continental Margins: An Atlas of Acoustic Images illustrates the complexity of features found in glaciated and formerly glaciated marine environments. The volume was assembled by an international Editorial Committee, led by Thomas A. Davies (University of Texas), from records gathered in the course of recent research and contributed by members of the scientific community from around the world. These include seismic sections, side-scan maps, and 3-D seismic data, supplemented in some cases by bottom photographs and core data, with accompanying text. The work is scientists at 40 institutions in 10 countries is represented. <br/> This book will be an invaluable resource for students, Quaternary scientists, glaciologists, marine geologists and geophysicists, geotechnical engineers, and surveyors teachers working in universities, research institutions and government agencies with interests in polar and subpolar regions, as well as those in industries with offshore interests
English (4)
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