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Petrology of Obachettapalem Ongole Area Prakasam District South India


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  • Product Description

The area under investigation lie on the eastern side of the Cuddapah basin and is situated in the Eastern Ghats Precambrian mobile belt (Lat. 15o35’ – 15o41’ N and Long. 79o43’ – 79o53’ E). The rocks encountered in the area of study are khondalite group, charnockites, granites and dolerites. Petrographic and Petrochemical (Major, Trace and REE) study of various rocks my be summarized that khondalites (pelitic gneisses, quartzites and pyroxene granulites) are the sediments which have subsequently metamorphosed under granulite facies conditions. During this high grade metamorphism, there is a possibility of anatectic melts developed forming the charnockites which are seen as lenses within the gneisses and granulites and the latter may represent restites. Some of the hydrous minerals like biotite and hornblende in the granulites and charnockites may indicate retrogression suffered by the emplacement of granite. At this stage the whole crust has become rigid and yielded to fractures, which forms the channel ways for the dolerites to emplace.

Product Specifications
SKU :COC88740
AuthorSathya Sai Prasad Katta and Sankar Dasari Balija
Number of Pages120
Publishing Year2013-11-06T00:00:00.000
Edition1 st
Book TypeGeology & the lithosphere
Country of ManufactureIndia
Product BrandLAP LAMBERT Academic Publishing
Product Packaging InfoBox
In The Box1 Piece
Product First Available On ClickOnCare.com2015-10-08 00:00:00
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