Himalaya: Geological Aspects, Volume 2P. S. Saklani Contributed articles. |
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Page 199
... sericite laths . Under the microscope the aggregate of sericite flakes impart distinct foliation to the rock while the quartz grains exhibit granoblastic texture . The rock comprises of quartz , sericite , muscovite and ilmenite . The ...
... sericite laths . Under the microscope the aggregate of sericite flakes impart distinct foliation to the rock while the quartz grains exhibit granoblastic texture . The rock comprises of quartz , sericite , muscovite and ilmenite . The ...
Page 354
... sericite which may be present sometimes form helicitic trails or occur at the quartz grain boundaries as extremely fine flakes ( Plate II , Photo 2 ) . The grains are coarser than the fine recrystallised grains associated with the old ...
... sericite which may be present sometimes form helicitic trails or occur at the quartz grain boundaries as extremely fine flakes ( Plate II , Photo 2 ) . The grains are coarser than the fine recrystallised grains associated with the old ...
Page 537
... sericite phyllite alternate bands of chlorite - quartz and sericite- rich layers are common . In samples where S , is prominent , coarser chlorite flakes and sericite define the S2 - cleavage as compared to those occurring along the ...
... sericite phyllite alternate bands of chlorite - quartz and sericite- rich layers are common . In samples where S , is prominent , coarser chlorite flakes and sericite define the S2 - cleavage as compared to those occurring along the ...
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