Petrogenetic Importance of Chromite Chemistry in Ophiolites, Mafic-Ultramafic Complexes NW, Pakistan & Ranomena Ultramafic Complex NE, Madagascar: A review
- سال انتشار: 1401
- محل انتشار: فصلنامه علوم و فناوری زمین، دوره: 3، شماره: 2
- کد COI اختصاصی: JR_HTPUB-3-2_004
- زبان مقاله: انگلیسی
- تعداد مشاهده: 165
نویسندگان
دانشجو
دانشجو
مدرس (استادیار)
دانشجو
چکیده
The margin of Indian Plate is limited to Suture Zones at North, North-West and East, those Suture Zones have marked distinctively by Ophiolites and Mafic-Ultramafic complexes in Pakistan. The order of the Ophiolites and Mafic-Ultramafic Complexes from South to North as (a) Bela, (b) Zhob-Muslimbagh, (c) Waziristan, (d) Dargai, (e) Shangla-Mingora, (f) Jijal Complex, (f) Sapat Complex and (g) Chilas Complex. These Ophiolites and Mafic-Ultramafic Complexes are entirely characterized by segregated, lenticular or disseminated Chromite associations. The present study is a critical extensive review of previous works about Chromite Chemistry and their petrogenetic indications. In particular, the Chromite Chemistry played an important role to interpreted the tectonic setup of particular mafic-ultramafic Complex, Ophiolites in Pakistan and Ranomena Ultramafic Complex NE, Madagascar. The Ophiolites and Mafic-Ultramafic complexes in Pakistan classified based on chromium number (Chromium No: > ۶۰ Class I, Class-II ۱۵-۶۰ & < ۶۰ III). The Chilas Complex i-e Chromite. No < ۶۰ is related to rifting origin, the Sapat and Jijal Complex Chromite. No > ۶۰ formed in Island Arc tectonic setting while others formed in Complex origin particularly Supra-Subduction Zone (SSZ) environment. The Mafic-Ultramafic Complexes of Pakistan has been correlated with Ranomena Ultramafic Complex North-East Madagascar and interpreted that the Bela, Muslimbagh-Zhobe, Waziristan, Dargai and Shangla-Mingora Ophiolites NW, Pakistan and Ranomena Ultramafic Complex NE, Madagascar originated at Supra Subduction Zone tectonic setting.کلیدواژه ها
Petrogenetic Importance; tectonic Setting; Chromite; Ophiolites; Mafic-Ultramafic Complexes; Supra Subduction Zone (SSZ); Ranomena Complexاطلاعات بیشتر در مورد COI
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