کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
9526038 1636198 2005 33 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Facies analysis and basin architecture of the Neogene Subandean synorogenic wedge, southern Bolivia
موضوعات مرتبط
مهندسی و علوم پایه علوم زمین و سیارات فرآیندهای سطح زمین
پیش نمایش صفحه اول مقاله
Facies analysis and basin architecture of the Neogene Subandean synorogenic wedge, southern Bolivia
چکیده انگلیسی
The coarsening- and thickening-upward pattern and eastward progradation, coupled with the variable proportions of overbank facies, channel size, and degree of channel abandonment, in the Tariquia, Guandacay, and Emborozu Formations reflect a distal through proximal fluvial megafan environment. This long-lived megafan grew by high sedimentation rates and a northeast-through-southeast radial paleoflow pattern on large, coarse-grained sediment lobes. The marked overall upsection change in pattern and depositional styles indicate fluctuations in accommodation space and sediment supply, regulated by basin subsidence, and are attributable to Andean tectonics and climatic controls.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Sedimentary Geology - Volume 180, Issues 3–4, 15 October 2005, Pages 91-123
نویسندگان
, , ,