Himalaya: Geological Aspects, Volume 2P. S. Saklani Contributed articles. |
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Page 4
... F2 folds in the groundmass . It has XMg ( Mg / Mg + Fe ) from 0.05-0.19 . ZnO from 0.9 to 4.5 wt % and TiO , up to 0.6 wt % . Garnet porphyroblasts are common in most pelitic , calc - pelitic and basic rocks , but vary considerably in ...
... F2 folds in the groundmass . It has XMg ( Mg / Mg + Fe ) from 0.05-0.19 . ZnO from 0.9 to 4.5 wt % and TiO , up to 0.6 wt % . Garnet porphyroblasts are common in most pelitic , calc - pelitic and basic rocks , but vary considerably in ...
Page 326
... folds plunge towards NW or SE at low angles ( Fig . 3 ) . F , folds of major dimension ( wave length 50-100 m ) are ... F2 folds . D1 Deformation Folds open in style , similar to those of F , folds , but plunging towards N to NNE at ...
... folds plunge towards NW or SE at low angles ( Fig . 3 ) . F , folds of major dimension ( wave length 50-100 m ) are ... F2 folds . D1 Deformation Folds open in style , similar to those of F , folds , but plunging towards N to NNE at ...
Page 655
... folds ( F , ) , at times reclined also . Subangular to angular thick hinges are also represented by axial plane ... F2 folds have subrounded to round hinges and nearly constant thickness at the hinges and limbs . These folds are well ...
... folds ( F , ) , at times reclined also . Subangular to angular thick hinges are also represented by axial plane ... F2 folds have subrounded to round hinges and nearly constant thickness at the hinges and limbs . These folds are well ...
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