دورية أكاديمية
Kinematics of the crust around the Ama Drime Massif (southern Tibet) - Constraints from paleomagnetic results
| العنوان: | Kinematics of the crust around the Ama Drime Massif (southern Tibet) - Constraints from paleomagnetic results |
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| المؤلفون: | Crouzet C., Appel E., El Bay R., Ding L., Dunkl I., Montomoli C., Zhang Q. H., Wauschkuhn B., CAROSI, Rodolfo |
| المساهمون: | Crouzet C., Appel E., El Bay R., Ding L., Dunkl I., Montomoli C., Carosi R., Zhang Q.H., Wauschkuhn B. |
| سنة النشر: | 2012 |
| المجموعة: | Università degli studi di Torino: AperTo (Archivio Istituzionale ad Accesso Aperto) |
| مصطلحات موضوعية: | cooling, exhumation, kinematics, metamorphism, paleomagnetism, pyrrhotite, remanent magnetization, rotation, tilt Regional Index: Ama Drime Massif, China, Dinggye, Himalayas, Rongbuk Valley, Xizang |
| الوصف: | Secondary magnetic remanences are used to study late-orogenic rotation and tilting on a E-W transect in southern Tibet at ∼28.5°N. Sampling was performed on both sides of the Ama Drime Massif (ADM). Remanent magnetization resides in pyrrhotite formed during metamorphism and is related to the last cooling event through 325. °C (Curie temperature of pyrrhotite). The existence of antipodal pTRMs demonstrates that the ChRM is of thermoremanent origin and was acquired during cooling of the Tethyan metasediments. Penetrative deformation was still going on in Ronghbuk area until ca 250. °C, whereas it was already completed in Dinggye area. Significant departures from the expected field direction during the age of remanence acquisition cannot be interpreted by consistent vertical axis rotation of blocks. Antagonist deviations on both sides of the ADM are explained as tiltings around an horizontal axis striking ∼N20°. These tiltings are estimated to be younger than 13-12. Ma and they are related to the ADM exhumation initiated since 33. Ma. © 2012 Elsevier Ltd. |
| نوع الوثيقة: | article in journal/newspaper |
| وصف الملف: | STAMPA |
| اللغة: | English |
| العلاقة: | info:eu-repo/semantics/altIdentifier/wos/WOS:000309799200011; volume:58; firstpage:119; lastpage:132; numberofpages:14; journal:JOURNAL OF ASIAN EARTH SCIENCES; http://hdl.handle.net/2318/126408Test; info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-84866013981 |
| DOI: | 10.1016/j.jseaes.2012.06.010 |
| الإتاحة: | https://doi.org/10.1016/j.jseaes.2012.06.010Test http://hdl.handle.net/2318/126408Test |
| رقم الانضمام: | edsbas.F735289C |
| قاعدة البيانات: | BASE |
| DOI: | 10.1016/j.jseaes.2012.06.010 |
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