Petrochemistry of the Eastern Part of Piparan Granite, Doda District, Jammu Lesser Himalaya

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 An_13-28 (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.