کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6347793 | 1621550 | 2016 | 11 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
The crustal evolution of the west-central Pyrenees revisited: Inferences from a new kinematic scenario
ترجمه فارسی عنوان
تکامل پوسته از پیرنه های غرب-مرکزی بازنمود: نتیجه گیری از یک سناریو جدید سینماتیک
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کلمات کلیدی
ساختار پوسته، فشار خون بالا، حاشیه های قاره ای، معکوس تکتونیکی، پیرنه ها،
موضوعات مرتبط
مهندسی و علوم پایه
علوم زمین و سیارات
علوم زمین و سیاره ای (عمومی)
چکیده انگلیسی
New evolutionary models for the Pyrenean orogeny must consider feedbacks between the Mid-Cretaceous hyperextension postulated recently and the Pyrenean inversion. We present a new crustal section of the Pyrenees through the Jaca Basin, the western Axial Zone and the Chaînons Béarnais, which allows identifying the ancient continental margins of the Iberian and European plates and a suture. A sequential restoration allows a reassessment of the style of convergence through time. Restoration leads to a progressively thinned crust in narrow continental margins separated by a domain of exhumed mantle peridotite and overlain by a detached sedimentary lid. Early convergence during the Late Cretaceous and the Earliest Paleogene was accommodated by subduction of the peridotite domain. This was followed in the Eocene by initial collision involving overriding of the Iberian margin onto the European margin along the deep ramp of the North-Pyrenean Frontal thrust, which defines the suture. Subsequent full collision and strong relief generation from the late-Mid or Late Eocene to the Early Miocene were associated with thrust accretion of the Iberian plate, underlain by wedging and northward subduction of the decoupled Iberian lower crust.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Comptes Rendus Geoscience - Volume 348, Issues 3â4, MarchâApril 2016, Pages 257-267
Journal: Comptes Rendus Geoscience - Volume 348, Issues 3â4, MarchâApril 2016, Pages 257-267
نویسندگان
Antonio Teixell, Pierre Labaume, Yves Lagabrielle,