Structural Geology of the HimalayaP. S. Saklani |
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Page 43
... field and textural evidences do not support the above contention . Gupta ( 1961 ) and Singh ( 1972 ) worked out the geology of the Dwarahat area and considered the grantic gneisses to be migmatites formed due to the transformation of ...
... field and textural evidences do not support the above contention . Gupta ( 1961 ) and Singh ( 1972 ) worked out the geology of the Dwarahat area and considered the grantic gneisses to be migmatites formed due to the transformation of ...
Page 123
P. S. Saklani. in the field , the quartz - porphyroblasts are rotated , broken and now lie more or less in vertical ... Field sketch : relict ( R ) of carlier foliation Fig . 4 . Abbreviations used are Q - Quartz ; T - Tourmaline ; F ...
P. S. Saklani. in the field , the quartz - porphyroblasts are rotated , broken and now lie more or less in vertical ... Field sketch : relict ( R ) of carlier foliation Fig . 4 . Abbreviations used are Q - Quartz ; T - Tourmaline ; F ...
Page 191
... Field photograph of the migmatised rock of the mica - schist member showing the development of F , and F2 coaxial folds , near village Didag . QUARTZITE Fig 11 Fig . 11. Field photograph showing the. Fig . 6. Field photograph of the ...
... Field photograph of the migmatised rock of the mica - schist member showing the development of F , and F2 coaxial folds , near village Didag . QUARTZITE Fig 11 Fig . 11. Field photograph showing the. Fig . 6. Field photograph of the ...
Common terms and phrases
Almora anatexis anticline augen axes axial plane Badrinath basin beds Bhattacharya biotite Blaini cleavage Delhi developed direction earthquakes eastern Eocene F₂ fabric facies fault folds foliation Gansser Garhwal Garhwal Himalaya garnet Geol gneiss grained granitic gneisses Himalaya Indian Indian plate Indo-Pakistan Jour Jutogh Kashmir Klootwijk Krol Belt Krol thrust Kumaun Kumaun Himalaya Ladakh Lesser Himalaya limestone Lingtse Gneiss Lower Main Boundary Main Central Thrust metamorphism mica schist micaceous Middle Siwalik migmatite mineral lineation Mukhem mylonitic Naini nappe Nepal observed occur ophiolite orientation Pakistan palaeomagnetic parallel phase of deformation phyllite plagioclase porphyroblastic quartz quartzite Quetta region rocks rotation S₁ S₂ Saklani sandstone schist schistosity sedimentary sediments seismicity sequence shales shear Simla Sinha Roy Siwalik Siwalik Formation slate stratigraphic structures Surv Suture Zone syncline tectonic tectonites thrust sheet thrust zone Tibetan slab tourmaline trend units Upper Valdiya valley volcanics