Himalaya: Geological Aspects, Volume 2P. S. Saklani Contributed articles. |
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Page 46
... higher grade zones were probably not formed at lower grade in these rocks . The chemistry of rocks in the three zones shows variation in CaO , MnO , and MgO content ( Table 2 ) . Sometimes the core garnet of the higher- grade zones ...
... higher grade zones were probably not formed at lower grade in these rocks . The chemistry of rocks in the three zones shows variation in CaO , MnO , and MgO content ( Table 2 ) . Sometimes the core garnet of the higher- grade zones ...
Page 49
... higher in Mg compared to kyanite - staurolite zone ( Table 4 ) . The F / FM ratio is higher in the former zone staurolite than the latter . This may be due to low - pressure conditions prevailing in the andalusite - staurolite zone ...
... higher in Mg compared to kyanite - staurolite zone ( Table 4 ) . The F / FM ratio is higher in the former zone staurolite than the latter . This may be due to low - pressure conditions prevailing in the andalusite - staurolite zone ...
Page 548
... higher XMg side of the AFM projection with the progress of the continuous reaction ( 1 ) prior to the breakdown of the garnet - chlorite join . Staurolite - biotite isograd The common occurrence of the staurolite - biotite - garnet ...
... higher XMg side of the AFM projection with the progress of the continuous reaction ( 1 ) prior to the breakdown of the garnet - chlorite join . Staurolite - biotite isograd The common occurrence of the staurolite - biotite - garnet ...
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