文章基本信息

标题：Geological conditions of the distribution of closed depressions in the Nałęczów Plateau (Lublin Upland, E Poland): are they an origin determinant?
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作者：Renata Kołodyńska-Gawrysiak ; Marian Harasimiuk ; Łukasz Chabudziński 等
期刊名称：Landform Analysis
印刷版ISSN：1429-799X
电子版ISSN：2081-5980
出版年度：2015
卷号：29
页码：9-18
DOI：10.12657/landfana.029.002
出版社：Bogucki Wydawnictwo Naukowe
摘要：Closed depressions (CDs) are landforms typical for loess areas. 1761 CDs have been inventoried within the Nałęczów Plateau. Large concentrations of CDs: 30–40 forms per km2 occur in areas where thick (more than 10 m) complex of glacigenic sediments (mainly glacial tills) or clay (limniglacial) deposits underlying loess cover. Areas with a low concentration of CDs (fewer than 10 forms per km2) correspond to areas where the loess cover lies on a bedrock (opokas) or on thin sandy-gravelly deposits. The distributions of CDs depends on the conditions of Pleistocene permafrost development and melting, linked with lithological properties of the sediments under loess cover.
关键词：closed depressions; loess; glacial tills