Himalaya: Geological Aspects, Volume 2Contributed articles. |
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Page 352
Fabric of psammitic rocks : The fabric of psammitic rocks of the Badolisera -
Pithoragarh Zone is dependent , to a considerable extent , on the grain - size and
the mineralogy of the rocks . The relatively clean quartzites of the Bhatkot
Formation ...
Fabric of psammitic rocks : The fabric of psammitic rocks of the Badolisera -
Pithoragarh Zone is dependent , to a considerable extent , on the grain - size and
the mineralogy of the rocks . The relatively clean quartzites of the Bhatkot
Formation ...
Page 353
Photo 1 : Quartzite with old clastic grains showing strain shadows and with
recrystallised matrix . Photo 2 : Quartzite with slightly elongated quartz grains
showing crenulated margins and Boehm lamellae . Photo 3 : Quartzite with
stretched ...
Photo 1 : Quartzite with old clastic grains showing strain shadows and with
recrystallised matrix . Photo 2 : Quartzite with slightly elongated quartz grains
showing crenulated margins and Boehm lamellae . Photo 3 : Quartzite with
stretched ...
Page 358
8e ac 8f bc Quartzite with slightly Weak concentration with maxima distributed in
elongated polygonal grains small circle at and around ' b ' . Distroted monoclinic
flattened in ' ab ' palne . symmetry . -doAlmost complete ' bc'girdle .
8e ac 8f bc Quartzite with slightly Weak concentration with maxima distributed in
elongated polygonal grains small circle at and around ' b ' . Distroted monoclinic
flattened in ' ab ' palne . symmetry . -doAlmost complete ' bc'girdle .
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Contents
The Central Himalayan Gneisses in Northern Pakistan | 1 |
LowPressure Metamorphism in a Regionally Metamorphic | 39 |
The Buniyar Granite of the Kashmir Himalaya | 61 |
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Almora angle appears assemblages associated augen axes axial axis bands base bedding belt biotite boundary Chail chlorite cleavage composition consists contain continuous crenulation crystalline deformation developed diagram direction District eastern exposed fabric facies faults folds foliation Formation formed fractures Garhwal garnet Geol Geology girdle gneiss grade grains granite Group higher Himalaya inclusions increase India indicate isograd Jour Jutogh Krol Kumaun kyanite Lesser Himalaya limestone lineation lower Main Central major metamorphism mica migmatites mineral movement muscovite mylonitic nappe Nepal observed occur orientation parallel pelitic phase phyllites plagioclase plane porphyroblasts present pressure quartz quartzite range reaction region relief represented result rocks Saklani schist schistosity sequence sericite sets shear sheet sillimanite similar Siwalik slates southern staurolite strain stratigraphic structural suggests surfaces Table tectonic temperature texture thickness thrust trend units upper valley West zone