کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4688958 1636019 2016 17 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Paleohydrologic controls on soft-sediment deformation in the Navajo Sandstone
موضوعات مرتبط
مهندسی و علوم پایه علوم زمین و سیارات فرآیندهای سطح زمین
پیش نمایش صفحه اول مقاله
Paleohydrologic controls on soft-sediment deformation in the Navajo Sandstone
چکیده انگلیسی
This study examines the implications of a wet climatic regime for the Horowitz deformation model. It demonstrates how a contoured water table, characteristic of humid climates, may have facilitated deformation within active bedforms, as well as in the accumulation. Intra-dune deformation would enable deflation of deformation features during the normal course of dune migration, more parsimoniously accounting for: the frequent occurrence of erosionally truncated deformation structures in the Navajo Sandstone; the production of such erosional truncations during bedform climb and aggradation of the accumulation; and the dramatic fluctuations in the water table required to deposit dry eolian sand, deform those deposits under saturated conditions, and then dry the deformed sand to enable deflation.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Sedimentary Geology - Volume 344, October 2016, Pages 205-221
نویسندگان
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