Himalaya: Geological Aspects, Volume 2P. S. Saklani Contributed articles. |
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Page 55
... pressure with the formation of kyanite in this zone . ( 1976 ) suggested that pressure of 4-5 kb is required for the formation of almandine rich garnet from the breakdown of Fe - rich chlorite ( muscovite , quartz ) . This reaction at ...
... pressure with the formation of kyanite in this zone . ( 1976 ) suggested that pressure of 4-5 kb is required for the formation of almandine rich garnet from the breakdown of Fe - rich chlorite ( muscovite , quartz ) . This reaction at ...
Page 93
... pressure conditions . Greenschist Facies : The onset of gieenschist facies is generally marked by the presence of ... pressure dependent . Temperature 390 ° C 10 ° C 400 ° C + 10 ° C 405 ° C + 10 ° C 415 ° C 10 ° C - Pressure at 2000 ...
... pressure conditions . Greenschist Facies : The onset of gieenschist facies is generally marked by the presence of ... pressure dependent . Temperature 390 ° C 10 ° C 400 ° C + 10 ° C 405 ° C + 10 ° C 415 ° C 10 ° C - Pressure at 2000 ...
Page 94
... pressure could be visualized for the study area . The phase equilibrium relations in the Al SiO , system have been ... pressure . With an increase in pressure , this equilibrium temperature rises and the rate of this is 30 ° C per 1000 ...
... pressure could be visualized for the study area . The phase equilibrium relations in the Al SiO , system have been ... pressure . With an increase in pressure , this equilibrium temperature rises and the rate of this is 30 ° C per 1000 ...
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