دورية أكاديمية
أعرض في EDS

Late extensional shear zones and associated recumbent folds in the Alpujarride subduction complex, Betic Cordillera, southern Spain.

التفاصيل البيبلوغرافية
العنوان: Late extensional shear zones and associated recumbent folds in the Alpujarride subduction complex, Betic Cordillera, southern Spain.
المؤلفون: Orozco, M., Alonso-Chaves, F. M., Platt, J. P.
المصدر: Geologica Acta; 2017: Vol.: 15 Núm.: 1; p. 51-66
Publication Status: published
بيانات النشر: Universitat de Barcelona, 2017.
سنة النشر: 2017
مصطلحات موضوعية: Extensional shear zone, Recumbent folds, Alpujarride Complex, Betic Cordillera
الوصف: The existence in the Alpujarride Complex (Betic Cordillera, southern Spain) of a relatively continuous extensional event (following crustal thickening) is based on detailed structural studies and is consistent with the P-T paths and geochronological data established for the Alpujarride rocks. According to our research, the Alpujarride Complex contains two large-scale shear zones accommodating early Miocene extension. The shear zones contain km-scale recumbent folds, some with sheath fold geometry, and megaboudinage structures, and are closely associated with detachment faults.Large-scale folds and boudins cause dome-like undulations in the detachments, which are inferred to overlap in time with the deformation in the shear zones. One shear zone in the eastern part of the orogen is top-N; the other, in the western part, is top-E. The change in the shear direction may represent a temporal evolution in the direction of shear, possibly related to a change in the subduction direction in space and time.
نوع الوثيقة: article
وصف الملف: text/html
اللغة: English
تدمد: 1696-5728
1695-6133
Relation: https://www.raco.cat/index.php/GeologicaActa/article/view/320018/410189
URL الوصول: https://www.raco.cat/index.php/GeologicaActa/article/view/320018
رقم الأكسشن: edsrac.320018
قاعدة البيانات: RACO (Revistes Catalanes amb Accés Obert)
الوصف
تدمد:16965728
16956133