Himalaya: Geological Aspects, Volume 2P. S. Saklani Contributed articles. |
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Page 4
... kyanite , whilst kyanite and sillimanite commonly occur at muscovite - quartz grain boundaries . Biotite is pleochroic in shades of mid- to red - brown due to high TiO2 content ( up to 4.9 wt % ) . Garnet tends to be flattened into the ...
... kyanite , whilst kyanite and sillimanite commonly occur at muscovite - quartz grain boundaries . Biotite is pleochroic in shades of mid- to red - brown due to high TiO2 content ( up to 4.9 wt % ) . Garnet tends to be flattened into the ...
Page 44
... kyanite isograd appear cloudy which may be due to dissemination of fine dust of opaque or carbonaceous matter or ... Kyanite - staurolite zone This zone is characterized by the appearance of large blades of kyanite grown over the ...
... kyanite isograd appear cloudy which may be due to dissemination of fine dust of opaque or carbonaceous matter or ... Kyanite - staurolite zone This zone is characterized by the appearance of large blades of kyanite grown over the ...
Page 209
... kyanite - fibrolite - schist of Zone D , the possible reaction was : Staurolite + muscovite + quartz = kyanite + biotite + H2O ( Chinner , 1965 ) ( 4 ) The inclusions of staurolite in some kyanite porphyroblasts and breakdown of ...
... kyanite - fibrolite - schist of Zone D , the possible reaction was : Staurolite + muscovite + quartz = kyanite + biotite + H2O ( Chinner , 1965 ) ( 4 ) The inclusions of staurolite in some kyanite porphyroblasts and breakdown of ...
Contents
The Central Himalayan Gneisses in Northern Pakistan | 1 |
LowPressure Metamorphism in a Regionally Metamorphic | 49 |
The Buniyar Granite of the Kashmir Himalaya | 61 |
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Acharyya 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 developed diagram fabric facies faults feldspar folds foliation Formation fractures 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 North Almora Thrust 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