نتایج جستجو برای: paleosol
تعداد نتایج: 272 فیلتر نتایج به سال:
Abstract. As atmospheric carbon dioxide (CO2) and temperatures increase with modern climate change, ancient hothouse periods become a focal point for understanding ecosystem function under similar conditions. The early Eocene exhibited high temperatures, CO2 levels, tectonic plate configuration as today, so it has been invoked an analog to change. During the Eocene, greater Green River Basin (G...
a Department of Earth & Planetary Sciences, Johns Hopkins University, 3400 N. Charles Street, 301 Olin Hall, Baltimore MD 21218, USA b Department of Geology & Geophysics, University of Utah, 115 S. 1460 East, Room 383, Salt Lake City UT, 84112, USA c Department of Paleobiology, National Museum of Natural History, Smithsonian Institution, Washington, D.C., 20013, USA d Department of Anthropology...
Dissolution is one among several taphonomical processes that may bias paleoenvironmental, paleoclimatic or taxonomic interpretation of phytolith assemblages. To improve our understanding dissolution on grass phytoliths, we studied systematic changes surface features, morphotype assemblages, and rates phytoliths extracted from two species Hyparrhenia involucrata (Panicoideae), Nastus borbonicus ...
The Zmajevac loess-palaeosol succession (LPS) of the northeastern Baranja loess plateau is exposed along the southern slope of Bansko Brdo, on the western bank of the Danube River. The investigated 17.5-m-thick section shows 4 palaeosol, 1 loess-like and 6 loess horizons. Their integrative palaeoenvironmental analysis combines quantified data from the mollusc record, magnetic susceptibility, gr...
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