کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5786316 | 1640482 | 2017 | 57 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Granite emplacement at the termination of a major Variscan transcurrent shear zone: The late collisional Viseu batholith
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
علوم زمین و سیارات
زمین شناسی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Granite emplacement at the termination of a major Variscan transcurrent shear zone: The late collisional Viseu batholith Granite emplacement at the termination of a major Variscan transcurrent shear zone: The late collisional Viseu batholith](/preview/png/5786316.png)
چکیده انگلیسی
A detailed anisotropy of magnetic susceptibility (AMS) survey suggests that pluton emplacement occurred at the extensional termination of a regional-scale, ENE-WSW trending, sinistral D3 shear zone - the Juzbado-Penalva Shear Zone (JPSZ). A dilational opening model involving the development of “en-échelon” tensional gashes at the extensional termination of the fault, followed by progressive opening and widening of north-south trending fractures, provided the space into which the successive magma batches arriving from below were emplaced. Vertical inflation was accommodated by depression of the pluton floor. The proposed model is consistent with the asymmetric wedge-shaped geometry of the intrusion (steep root zone on the northern side, discordant subvertical walls and a shallowing pluton floor towards the south).
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Structural Geology - Volume 98, May 2017, Pages 15-37
Journal: Journal of Structural Geology - Volume 98, May 2017, Pages 15-37
نویسندگان
B. Valle Aguado, M.R. Azevedo, J. Nolan, J. Medina, M.M. Costa, F. Corfu, J.R. MartÃnez Catalán,