Himalaya: Geological Aspects, Volume 2P. S. Saklani Contributed articles. |
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Page 94
... feldspar + andalusite + H2O ( ii ) Muscovite + quartz = > Cordierite + potash feldspar + H2O . These reactions take place almost under the same P - T conditions , i.e. , 690 ° C ± 10 ° C at 4000 bars H2O pressure . With an increase in ...
... feldspar + andalusite + H2O ( ii ) Muscovite + quartz = > Cordierite + potash feldspar + H2O . These reactions take place almost under the same P - T conditions , i.e. , 690 ° C ± 10 ° C at 4000 bars H2O pressure . With an increase in ...
Page 198
... feldspar wrapped by foliation plane consisting of muscovite and finaly granulated feldspar and quartz grains . The porphyroclasts exhibit a variery of deformational textures viz . , goatee , strain shadow , pull apart granulated plucked ...
... feldspar wrapped by foliation plane consisting of muscovite and finaly granulated feldspar and quartz grains . The porphyroclasts exhibit a variery of deformational textures viz . , goatee , strain shadow , pull apart granulated plucked ...
Page 328
... feldspar , diopside , biotite , granet , quartz , chlorite , biotite , muscovite . Quartz , feldspar , biotite , muscovite , garnet . Quartz , feldspar , biotite , muscovite , garnet , staurolite . Quartz , feldspar , biotite ...
... feldspar , diopside , biotite , granet , quartz , chlorite , biotite , muscovite . Quartz , feldspar , biotite , muscovite , garnet . Quartz , feldspar , biotite , muscovite , garnet , staurolite . Quartz , feldspar , biotite ...
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