کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
9526899 1636967 2005 15 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Using gemorphological markers to discriminate Neogene tectonic activity in the Precordillera of North Chilean forearc (24-25°S)
موضوعات مرتبط
مهندسی و علوم پایه علوم زمین و سیارات فرآیندهای سطح زمین
پیش نمایش صفحه اول مقاله
Using gemorphological markers to discriminate Neogene tectonic activity in the Precordillera of North Chilean forearc (24-25°S)
چکیده انگلیسی
We study the Neogene tectonic activity in a sector of the Precordillera in the Andean forearc analysing aerial photographs, satellite images and fieldwork data. The interpretation of alluvial landforms, drainage organisation and evolution of intermittent river networks affecting post-Lower Miocene deposits allow us to recognize low intensity tectonic processes controlling the landscape evolution. All these geomorphological markers indicate no strike-slip offsets, but repeated and small tectonic pulses that reactivate previous structures originated under a transpressive context. The observed deformation pattern is the consequence of E-W orthogonal compression resulting in limited shortening, related to the accommodation of deformation in the Chilean forearc of the Neogene uplift of the Altiplano-Puna.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Tectonophysics - Volume 411, Issues 1–4, 23 December 2005, Pages 41-55
نویسندگان
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