M. Kaur et Ls. Chamyal, THE GRANITOIDS OF PINDAR-SARJU-RAMGANGA AND GORIGANGA VALLEYS OF HIGHER KUMAUN-HIMALAYA, Journal of the Geological Society of India, 47(6), 1996, pp. 665-674
In the Higher Kumaun Himalaya granitoids are widely distributed and oc
cur as bands, lenses or sheet-like bodies. They include different vari
eties of gneissic granites (schistose, foliated, augen and porphyrobla
stic). The field, petrographic as well as chemical data indicate that
the granitoids of Kumaun Higher Himalaya are formed due to metasomatic
transformation of metasediments by alkali-rich emanations. The geoche
mistry of these reveal their calc-alkaline, peraluminous, S-type natur
e and compositionally mainly represent granite. Trace elements discrim
inate the granitoids in the syn-collisional environment.