Plio-Pleistocene red clay deposits in the Pannonian basin: A review

被引:37
作者
Kovacs, Janos [1 ]
Fabian, Szabolcs Akos [2 ]
Varga, Gabor [2 ]
Ujvari, Gabor [3 ]
Varga, Gyoergy [4 ]
Dezso, Jozsef [5 ]
机构
[1] Univ Pecs, Dept Geol, H-7624 Pecs, Hungary
[2] Univ Pecs, Dept Phys Geog, H-7624 Pecs, Hungary
[3] Hungarian Acad Sci, Geodet & Geophys Res Inst, H-9400 Sopron, Hungary
[4] Hungarian Acad Sci, Geog Res Inst, H-1112 Budapest, Hungary
[5] Univ Pecs, Inst Environm Sci, H-7624 Pecs, Hungary
关键词
CHINESE LOESS PLATEAU; GRAIN-SIZE ANALYSIS; LATE MIOCENE; QUARTZ SILT; CLIMATE-CHANGE; DESERT LOESS; ORIGIN; HUNGARY; DUST; PLEISTOCENE;
D O I
10.1016/j.quaint.2010.12.013
中图分类号
P9 [自然地理学];
学科分类号
0705 ; 070501 ;
摘要
Terrestrial red clays underlying Quaternary loess deposits, or filling fissures and recently existing caves in limestone are named Tengelic Red Clay Formation and Kerecsend Red Clay Formation (Middle Pliocene to Lower Pleistocene). They occur in three types in Hungary. (1) The oldest red clays are mainly in situ weathering crusts rich in kaolinite, formed in warm, humid, subtropical or monsoon climate; (2) the younger type is rich in smectite and goethite; and (3) illite and chlorite dominant in the youngest part, which formed under warm and dry climates in savannah, steppe or forest steppe environments, and is of wind-blown origin. Representative samples were selected for study from a large number of profiles. Mineralogical, some micromorphological, and geochemical investigations of typical samples of red clays in Hungary were performed. This review focuses on the origin, development and distribution in the Pannonian basin. (C) 2010 Elsevier Ltd and INQUA. All rights reserved.
引用
收藏
页码:35 / 43
页数:9
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