دورية أكاديمية
Geology of the southern Gran Paradiso Massif and Lower Piedmont Zone contact area (middle Ala Valley, Western Alps, Italy)
| العنوان: | Geology of the southern Gran Paradiso Massif and Lower Piedmont Zone contact area (middle Ala Valley, Western Alps, Italy) |
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| المؤلفون: | Caso F., Nerone S., Petroccia A., Bonasera M. |
| المساهمون: | Caso F., Nerone S., Petroccia A., Bonasera M. |
| سنة النشر: | 2021 |
| المجموعة: | Università degli studi di Torino: AperTo (Archivio Istituzionale ad Accesso Aperto) |
| مصطلحات موضوعية: | Geological mapping, Gran Paradiso Massif, polyphase deformation, structural geology, Western Alps |
| الوصف: | This work presents the structural evolution of a poorly studied key-area in the middle Ala Valley, Western Alps, where two tectono-metamorphic units are exposed. A geological map at the 1:10.000 scale, integrated with meso- and microstructural analysis, has been realised. We investigated the contact area between Gran Paradiso Massif in the footwall and Lower Piedmont Zone in the hanging wall. Both tectono-metamorphic units, with a different paleogeographic affinity, preserve similar polyphasic deformation histories, defined by four deformation phases. The Dp phase, strongly transposing previous structural relicts, is marked by a high-pressure assemblage associated with the Sp foliation. Dp controls the lithological boundary attitude. A mylonitic zone, developed during the Dp, showing kinematic indicators pointing to a top-to-the N-NW sense of shear, is responsible for the juxtaposition of the two units. Dp structural elements are deformed by Dp+1 and Dp+2 subsequent phases. A greenschist-facies overprinting was observed during the Dp+1 phase. |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | English |
| العلاقة: | info:eu-repo/semantics/altIdentifier/wos/WOS:000638447500001; volume:17; issue:2; firstpage:237; lastpage:246; numberofpages:10; journal:JOURNAL OF MAPS; http://hdl.handle.net/2318/1799358Test; info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85104239910 |
| DOI: | 10.1080/17445647.2021.1911869 |
| الإتاحة: | https://doi.org/10.1080/17445647.2021.1911869Test http://hdl.handle.net/2318/1799358Test |
| حقوق: | info:eu-repo/semantics/openAccess |
| رقم الانضمام: | edsbas.9451A3FF |
| قاعدة البيانات: | BASE |
| DOI: | 10.1080/17445647.2021.1911869 |
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