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Petrochemistry of the Eastern Part of Piparan Granite, Doda District, Jammu Lesser Himalaya
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Piparan Granite batholith, in the southwest of Pir Panjal, Jammu Lesser Himalaya, is exposed within the Older Metamorphics (Precambrian). The granite is Ieuco- to mesocratic composed of quartz (32%), perthitic K-feldspar (27%), plagioclase An13-28 (23%), micas(13%), garnet, apatite, zircon and ilmenite (8%). It is of two mica monzogranitic composition. Its major and trace element concentrations are comparable to the average crustal granite. The differentiation of the rock favours a normal trend with a positive correlation of alkalies and a negative trend of magnesium against silica. The granite is S-type (ilmenite series) and peraluminous, produced as a result of syntectonic crustal anatectic process at a temperature range of 650°-690°C, 3-5 kb PH2O and at a depth of approximately 20-30 km.
Keywords
Petrology, Piparan Granite, Lesser Himalaya, Jammu and Kashmir.
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