کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4696539 1351684 2006 26 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Massive hydrothermal dolomites in the southwestern Cantabrian Zone (Spain) and their relation to the Late Variscan evolution
موضوعات مرتبط
مهندسی و علوم پایه علوم زمین و سیارات زمین شناسی اقتصادی
پیش نمایش صفحه اول مقاله
Massive hydrothermal dolomites in the southwestern Cantabrian Zone (Spain) and their relation to the Late Variscan evolution
چکیده انگلیسی

Large-scale, massive burial dolomitization affected Upper Carboniferous carbonates of the southwestern Variscan Cantabrian Zone (Spain). Replacive and void-filling dolomites formed and were post-dated by calcite cementation. The process of dolomitization was due to the circulation of hypersaline and hydrothermal marine-derived brines, controlled by rock anisotropies. The dolomites probably formed in Early Permian time during post-thrusting orocline formation in an extensional setting. Lithospheric delamination induced increased heat flow and allowed thermal convection of the fluids.The dolomites from the Cantabrian Zone are excellently exposed and represent an interesting outcrop analogue for hydrocarbon reservoirs elsewhere. In comparable geotectonic settings of the European Variscan Orogen large masses of similar dolomites could have formed if Mg-rich brines were available.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Marine and Petroleum Geology - Volume 23, Issue 5, June 2006, Pages 543–568
نویسندگان
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