کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4685224 1635481 2012 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Periglacial features in Patriot Hills, Ellsworth Mountains, Antarctica
موضوعات مرتبط
مهندسی و علوم پایه علوم زمین و سیارات فرآیندهای سطح زمین
پیش نمایش صفحه اول مقاله
Periglacial features in Patriot Hills, Ellsworth Mountains, Antarctica
چکیده انگلیسی

This work describes periglacial features identified at Patriot Hills, at the southernmost part of Ellsworth Mountains, Antarctica, during the 2008/2009 Brazilian Antarctic Expedition, and discusses their morphogenetic environment. Identified periglacial features were classified into: (a) rock glacier-like landform; (b) slightly creeping debris-mantled slopes; (c) steep debris-mantled slopes; and (d) rock falls. Results obtained from sediment sample analysis suggest activity and passive movement of a rock glacier-like landform, albeit minimal. Wind seems to play an important role in Patriot Hills local geomorphology. Periglacial features such as slightly creeping debris-mantled slope appear to have preferred slope orientation. They are commonly found onto slopes where the katabatic wind flows down. Slopewash and groundwater movement processes may be limited or non-existent since most snow disappears through sublimation

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Geomorphology - Volumes 155–156, 15 June 2012, Pages 96–101
نویسندگان
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