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Now showing items 61-80 of 189
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(2001)Isotope and geochemical techniques are the primary way in which the residence time, recharge conditions and subsequent evolution of palaeowaters can be determined. Isotopic species and noble gas concentrations are used as ...
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(2003)Spherical objects, identified as microfossils and named Isuasphaera isua (Pflug), were reported in 1978 from a chert in the 3.7-3.8Ga Isua Greenstone Belt (IGB). Soon afterwards the biological nature of these objects was ...
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(2003)The seismic CMP is the main method of the geological sections study in the Black Sea, because drilling data on the deep basin part are scarce. Accordingly, stratigraphic subdivisions of sedimentary cover can be defined and ...
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(2001)We have calculated long-term erosion rates of 20-100 mm/kyr from quartz-contained 10Be in the bedload of middle European rivers for catchments ranging from 102 to 105 km2. These rates average over 10-40 kyr and agree broadly ...
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(2002)This paper provides an overview of the geography and palaeogeography of the Chuja (Chuya)–Katun river system in the Altai Mountains of south Siberia. In addition, an introduction to the sedimentology of catastrophic flood ...
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(2002)Lithologic and multi-proxy paleoenvironmental data from 21 dated cores have been used to define three allostratigraphic units (allounits) within the late Quaternary successions of the Marmara Sea and Black Sea. Allounits ...
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(2002)Ice-rich permafrost sequences with large polygonal ice wedges represent excellent archives for paleoenvironmental reconstruction. Such deposits contain numerous well-preserved records (ground ice, paleosols, peat beds, ...
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(2001)The paper presents the results of quantitative and qualitative analyses of planktonic foraminifer distribution in the Upper Pleistocene-Holocene sediments of the northeastern part of the Kuril Basin in the Sea of Okhotsk. ...
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(2003)Inherited saprolite stores and continued weathering in Quaternary time juxtapose abundant clay and fresh rock in tropical landscapes. This influences sediment fluxes and affects the interpretation of sediment sequences ...
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(2004)The Ulleung Interplain Gap (UIG) is a deep (2300–2700 m) passage which has served as a conduit for deep-water circulation between the Ulleung and Japan basins. A detailed analysis of Chirp (2–7 kHz) subbottom profiles (ca. ...
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(2002)Slip rates across active faults and folds show that late Quaternary faulting is distributed across the central Tien Shan, not concentrated at its margins. Nearly every intermontane basin contains Neogene and Quaternary ...
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(1999)Ice-sheet reconstructions for the last glacial maximum in northern Eurasia range from nearly complete coverage by a contiguous marine-based ice sheet to large unglaciated areas. Stratigraphic records from Yamal Peninsula, ...
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(2002)Seven lithological units, alternating between horizons enriched in biogenic opal (diatoms) and carbonate (foraminifera) and units composed largely of terrigenous sediment with very low biogenic admixture, were distinguished ...
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(1989)The scale of manifestation of the Valday glaciation in the northern shelf zones of Eurasia continues to be controversial. This problem is of both theoretical and practical importance. It is particularly important in planning ...
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(1989)Whole-rock (major- and trace-element) and mineral chemical data are presented for basaltic rocks from the main evolutionary stages of the Kurile island arc, NW Pacific. An outer, inactive arc contains a Cretaceous-Lower ...
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(1999)The Matuyama–Brunhes boundary (MBB) where the Earth's magnetic field changed to its present orientation is one of the most frequently used time markers in continental Quaternary stratigraphy. Although magnetic signals have ...
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(2002)A mathematical model was used to study the effect of glacially induced fluctuations in sea level on the formation of wave-cut terraces on tectonically mobile rock coasts. Two deep water wave sets were used to calculate ...
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(2004)Modern analog analysis, the comparison of Quaternary fossil pollen assemblages with modern assemblages, has long been a mainstay of paleoecological and paleoclimatic inference. The logic of analogical inference involves a ...
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(1999)The new maps of Quaternary and recent tectonic movements were compiled with the use of new geologiegéomorphologie and geodetic data.
Now showing items 61-80 of 189