کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9536357 | 1357110 | 2005 | 18 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Structural and kinematic constraints to the exhumation of the Alpujarride Complex (Central Betic Cordillera, Spain)
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
موضوعات مرتبط
مهندسی و علوم پایه
علوم زمین و سیارات
زمین شناسی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Structural and kinematic constraints to the exhumation of the Alpujarride Complex (Central Betic Cordillera, Spain) Structural and kinematic constraints to the exhumation of the Alpujarride Complex (Central Betic Cordillera, Spain)](/preview/png/9536357.png)
چکیده انگلیسی
The polymetamorphic Alpujarride nappe Complex is one of the main constituents of the internal zones of the Alpine Betic-Rif chain. Still under debate are the tectonic processes involved in exhumation of its deep-seated portions, metamorphosed under high-pressure conditions during the Alpine crustal thickening. A systematic study of the exhumation-related ductile and brittle fabric observed in the different Alpujarride units reveals, independently from the metamorphic grade and age of the protoliths, a common sequence of deformation events. It involves early progressive top-to-the-N/NE ductile shearing, followed by a major top-to-the-N post-metamorphic extensional faulting event, which produced a complex re-organisation of the whole nappe pile. We propose that ductile exhumation of the deep-seated Alpujarride nappe piles was mainly completed before the onset of the post-orogenic extensional processes associated with the Early Miocene Alboran rifting. A switch from an early ductile underthrusting regime (Paleogene in age) to semibrittle-to-brittle extension (Early Miocene onward) is here proposed as responsible for the exhumation history of the Alpujarride Complex.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Structural Geology - Volume 27, Issue 2, February 2005, Pages 199-216
Journal: Journal of Structural Geology - Volume 27, Issue 2, February 2005, Pages 199-216
نویسندگان
F. Rossetti, C. Faccenna, A. Crespo-Blanc,