Contributors: Geological Survey of Israel, 32 Yesha'ayahu Leibowitz st. Jerusalem 9692100 (GSI); Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing, PR China; Géosciences Montpellier; Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université des Antilles (UA)-Université de Montpellier (UM); Department of Microelectronics, Institute of Physics, Silesian University of Technology, Krzywoustego 2, 44-100 Gliwice, Poland; Lamont-Doherty Earth Observatory of Columbia University, Palisades, New York 10964 USA; U.S. Geological Survey, MS 980, Box 25046, Federal Center, Denver, Colorado 80225 (USGS); INCITAP (CONICET) – University of La Pampa, Avenida Uruguay 151, 6300 Santa Rosa, La Pampa; School of Earth, Atmosphere and Life Sciences, The University of Wollongong
نبذة مختصرة : International audience ; Loess is an eolian deposit, composed mainly of silt grains, which can be identified in the field as a distinct sedimentary body. It covers a significant portion of the land surface of the Earth and is one of the most important terrestrial archives of long-term dust deposition. Loess appears on almost all continents, and ranges in thickness up to several hundred of meters. Most loess sequences include buried soils (paleosols), alternating with unaltered loess layers. As the formation of loess is controlled, at least partly, by climate, alternating loess deposits and buried soils hold valuable information of Quaternary climatic and environmental conditions, especially of past wind regimes.
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