Himalaya: Geological Aspects, Volume 2P. S. Saklani Contributed articles. |
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Page 89
... amphibolite facies : ( i ) Quartz - muscovite - microcline - oligoclase - biotite ( ii ) Quartz - muscovite - biotite - plagioclase ( An > 15 % ) + staurolite ) ( iii ) Quartz - plagioclase ( An ,, ) - biotite - muscovite - staurolite + ...
... amphibolite facies : ( i ) Quartz - muscovite - microcline - oligoclase - biotite ( ii ) Quartz - muscovite - biotite - plagioclase ( An > 15 % ) + staurolite ) ( iii ) Quartz - plagioclase ( An ,, ) - biotite - muscovite - staurolite + ...
Page 90
... amphibolite facies of Eskola ( 1939 ) and appear to be transitional in character between the high and low grade rocks . Eskola ( 1939 ) regarded this to be a high grade subfacies of the greenschist facies , whereas Fyfe , Turner and ...
... amphibolite facies of Eskola ( 1939 ) and appear to be transitional in character between the high and low grade rocks . Eskola ( 1939 ) regarded this to be a high grade subfacies of the greenschist facies , whereas Fyfe , Turner and ...
Page 110
... amphibolite and para - amphibolite have been recognised . The para - amphibolite is seen locally developed in marble , where calc - silicates minerals are abundant . The amphibolites are greenish black and show considerable variation in ...
... amphibolite and para - amphibolite have been recognised . The para - amphibolite is seen locally developed in marble , where calc - silicates minerals are abundant . The amphibolites are greenish black and show considerable variation in ...
Contents
The Central Himalayan Gneisses in Northern Pakistan | 1 |
LowPressure Metamorphism in a Regionally Metamorphic | 49 |
The Aureole Zone and Metasediments of Dhauladhar Chaori Khas H P | 75 |
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Almora amphibolite andalusite anticline assemblages augen gneiss axes axial plane axis Barun bedding belt Berinag Bhutan biotite Buxa Central Crystallines Chail Chail Nappes chlorite Chomolongma crenulation cleavage Darjeeling developed diagram eastern fabric facies faults feldspar folds foliation Formation fractures Fuchs Gansser Garhwal Garhwal Himalaya garnet Geol Geology girdle gneiss Gondwana grade grains granite gneiss Group Himalaya India isograd Jour Jutogh Khola Khumbu Kumaun kyanite Lesser Himalaya limestone lithological lower Main Central Thrust Makalu Massif mesoscopic metasediments mica schist micaceous migmatites mineral lineation muscovite mylonitic nappe Nepal occur orientation parallel pelitic Phaplu phase of deformation phyllites plagioclase porphyroblasts Pradesh Precambrian quartz quartzite reaction regional metamorphism rocks S₂ Saklani schist schistosity sedimentary sediments sequence sericite shear sillimanite Simla Siwalik Siyom slates staurolite stratigraphic strike-slip structural Surv syncline tectonic temperature Tethyan texture Thimpu thrust sheet thrust zone tourmaline trend upper Vaikrita Valdiya valley