کد مقاله کد نشریه سال انتشار مقاله انگلیسی ترجمه فارسی نسخه تمام متن
4728680 1640206 2015 10 صفحه PDF سفارش دهید دانلود رایگان
عنوان انگلیسی مقاله ISI
Structural control of fluvial drainage in the western domain of the Cape Fold Belt, South Africa
ترجمه فارسی عنوان
کنترل ساختاری زهکشی رگه ای در دامنه غربی کمربند کیپ فورد، آفریقای جنوبی
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کلمات کلیدی
کمربند کیپ فلاپ، ناهنجاری زهکشی، الگوی زهکشی مستطیلی، کنترل ساختاری، زمین شناسی تکتونیکی
موضوعات مرتبط
مهندسی و علوم پایه علوم زمین و سیارات زمین شناسی
چکیده انگلیسی


• The influence of structure in fluvial drainage morphology is investigated.
• Folding and faulting impose various drainage anomalies and drainage patterns.
• The study raises questions on the implications of one major or multiple dominant structural controls on drainage morphology.

The purpose of the study was to examine the extent to which drainage morphology has been influenced by faulting, folding and bedrock lithology in the Cape Fold Belt (CFB) of South Africa. This region was formed during Paleozoic–Mesozoic convergence along the south-western margin of Gondwana. An extensive structural geology database, terrain characteristics and stream network data were analysed using Geographical Information Systems (GIS) to examine the possible linkages between structure and fluvial drainage. Results indicated that the contemporary geomorphology of the area reflects the influence of folding and faulting as well as differential erosion. The following drainage anomalies suggestive of strong structural control were identified: orientation of flow direction of major streams corresponding to structural lineaments, abrupt changes in stream direction influenced by anticline fold axes, faults and joints, and fault-aligned streams. Drainage development in the study area responded noticeably to the underlying structure. The study raises questions with regard to the implications of one major or multiple dominant structural controls on drainage morphology and pattern. The findings have relevance with regard to the understanding fluvial drainage development and landform evolution in tectonically deformed regions.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of African Earth Sciences - Volume 101, January 2015, Pages 350–359
نویسندگان
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