Himalaya: Geological Aspects, Volume 2P. S. Saklani Contributed articles. |
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Page 352
... grains more or less retain their clastic character except for elongation and reorientation , in which case the longer axes of the grains are aligned parallel to the bedding . The grains tend to have somewhat crenulated margins and are ...
... grains more or less retain their clastic character except for elongation and reorientation , in which case the longer axes of the grains are aligned parallel to the bedding . The grains tend to have somewhat crenulated margins and are ...
Page 354
... grains become more equant in shape , and with clearly defined grain boundaries . They are without any strain effect ... grains are coarser than the fine recrystallised grains associated with the old grains . The final product observed in ...
... grains become more equant in shape , and with clearly defined grain boundaries . They are without any strain effect ... grains are coarser than the fine recrystallised grains associated with the old grains . The final product observed in ...
Page 358
... grains showing clastic structure . Some grains show Boehm lamellae - do - Quartzite with old detriatal grains . 8j bc - do - 8k ac Quartzite with old detrital grains . 81 bc - do- & m ac Quartzite with new polygonal strainfree grains ...
... grains showing clastic structure . Some grains show Boehm lamellae - do - Quartzite with old detriatal grains . 8j bc - do - 8k ac Quartzite with old detrital grains . 81 bc - do- & m ac Quartzite with new polygonal strainfree grains ...
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