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GeologyScience Repository: Recent submissions
Now showing items 501-520 of 43265
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(2006)Discordant cosmogenic nuclide exposure ages derived from 10Be, 26Al, and 14C extracted from quartz in rocky summits along the eastern rim of the central Baffin Island plateau provide constraints on the efficiency of erosion ...
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(2006)A multidisciplinary study of silicified volcanoclastic, near-shore deposits from the 3.446 Ga "Kitty's Gap Chert," Warrawoona Group, Pilbara, reveals that they contain a wealth of carbonaceous microbial fossil remains. The ...
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(2006)The fossil record of wetlands documents unique and long-persistent fl oras and faunas with wetland habitats spawning or at least preserving novel evolutionary characteristics and, at other times, acting as refugia. In ...
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(2006)The geochemistry of river water, river sediments, and suspended matter in three mountainous watersheds in New Zealand and Taiwan is used to determine chemical erosion yields in regions of rapid tectonic uplift. Suspended ...
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(2006)Newly recognized fossil cyclomedusoids from the Yreka terrane include Ediacaria sp. and Beltanella sp. They are typical of the Ediacaran fossil assemblage, range from 640 to 575 Ma, and thus are latest Neoproterozoic ...
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(2006)We have studied the magnetic properties of wet and dry late Pleistocene Lake Lisan sediments and the Holocene Dead Sea sediments. Our initial prediction was that the properties of both would be quite similar, because they ...
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(2006)A quantitative model is proposed for the long-term evolution of lakes and internally drained basins resulting from tectonic vertical motions, sediment infill, outlet erosion, and climatic regime. The model accounts for the ...
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(2006)This study focuses on two issues that are still a matter of debate in subduction zones, particularly in western México: (1) the close association within the same volcanic complex of typical amphibole-free andesites to ...
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(2006)Rare occurrences of clastic metasedimentary rocks within the lowermost stratigraphic units of the Barberton greenstone belt represent one of the few lines of evidence that argue for the existence of some component of evolved ...
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(2006)The carbon and oxygen isotopic composition of pedogenic calcite from mid-Turonian paleosols in Israel was analyzed to evaluate paleoenvironmental conditions and calculate paleoatmospheric pCO2. The central area of Israel ...
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(2006)The Ironside Mountain batholith consists of the 170-Ma Ironside Mountain pluton, the quartz diorite of Happy Camp Mountain, the 167-Ma Denny intrusive complex, and the West China Peak intrusive complex. The contact aureole ...
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(2006)Diverse wetland vegetation flourished at the margins of the Midland Basin in north-central Texas during the Pennsylvanian Period. Extensive coastal swamps and an ever-wet, tropical climate supported lush growth of pteridosperm, ...
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(2006)Four cherts sampled in the East Pilbara craton (Western Australia) at Marble Bar (Towers Formation), North Pole Dome (Dresser and Apex Basalt Formation), and Kittys Gap (Panorama Formation) were studied for micro- and ...
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(2006)The Ionian zone is a classic thin-skinned linear fold and thrust belt forming a part of the external Hellenides, in westernmost Greece. The region has been a focus of intensive paleomagnetic investigation since the early ...
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(2006)The relationship between Cenozoic igneous rocks and the geodynamic evolution of the Aegean region is synthesized. A simplified palinspastic reconstruction of the region is attempted for the last 50 m.y., on the basis of ...
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(2006)The Cenozoic geology and the present lithospheric and upper-mantle structure of the Anatolian plateau in eastern Turkey and nearby regions are the result of the final collision and suturing of the continental Arabia plate ...
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(2006)The late Mesozoic-early Tertiary evolution of the Mediterranean region was defined by a series of collisions between Gondwana-derived continental blocks and Eurasia as the intervening ocean basins closed. The late ...
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(2006)The Western Anatolia extended terrane in Turkey is bounded by the North Anatolian fault zone to the north, the Lycian nappes to the south. It contains the Menderes massif, one of the post-collisional Alpine metamorphic ...
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(2006)The Eurasia-Arabia continental collision region, including surrounding areas of eastern Turkey, the Caucasus, and the Iranian plateau, is one of Earth's most seismically active and rapidly deforming continental regions. ...
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(2006)Western Anatolia, one of the world's best-known extensional terrains, is characterized by the presence of several moderate-to high-enthalpy geothermal fields. Geothermal fluids have helium isotope compositions reflecting ...
Now showing items 501-520 of 43265