Document Details

Document Type : Article In Journal 
Document Title :
Geochemistry and Tectonic Setting of Gadani-Phuari Segment Ipf Bela Ophiolites, Balochistan, Pakistan
جيوكيمياء والوضع التكتوني لقطاع جاداني ـ فعاري لأوفيوليت بيلا ، بالوجيستان ـ باكستان
 
Subject : Earth Sciences 
Document Language : English 
Abstract : The volcanic rocks exposed at Gadani-Phuari area. District Lasbela, Balochistan, mark part of the southernmost. onshore remnant of the Bela Ophiolites. In Lasbela region. there are two prominent groups of Cretaceous igneous rocks. The first are Bela ophiolitic rocks which are allochthonous in nature and are unrelated to the second group, i.e. the Porali Intrusion which is equivalent to Deccan Trap and represent younger within-plate basalts (WPB). The southern most exposure of Bela Ophiolites are present in small and scattered outcrops in Gadani-Phuari area west of Karachi. Major and trace element analyses of 20 selected samples have been used for evaluating these rocks. The variation of total alkali with silica (TAS) of the volcanic rocks suggests that they are mostly alkaline basalts and trachy-basalts. Whereas the tren~s of the other major and trace elements indicate that they are low K tholeiites derived from a source similar to that of E-Type Mid Oceanic Ridge Basalt (MORB). These ophiolitic rocks were emplaced onto the western margin of the Indian plate during Maastrichtian to Lower Eocene time. 
ISSN : 1012-8832 
Journal Name : Earth Sciences Journal 
Volume : 9 
Issue Number : 1 
Publishing Year : 1416-1418 AH
1996-1997 AD 
Number Of Pages : 17 
Article Type : Article 
Added Date : Sunday, October 11, 2009 

Researchers

Researcher Name (Arabic)Researcher Name (English)Researcher TypeDr GradeEmail
شاهد نسيم SHAHID NASEEMResearcher  
شميم أحمد شيخ SHAMIM AHMED SHEIKH Researcher  
م. قديرالدين M. QADEERUDDINResearcher  

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