Structural Geology of the HimalayaP. S. Saklani |
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Page 18
... shales which are highly cleaved , it is extremely difficult to recognise primary bedding . The general strike of the ... shales . But , such structures are usually absent in all shales and limestones . Current bedding generally dips to ...
... shales which are highly cleaved , it is extremely difficult to recognise primary bedding . The general strike of the ... shales . But , such structures are usually absent in all shales and limestones . Current bedding generally dips to ...
Page 20
... shales , where it can be mistaken for bedding planes . In thinly laminated and fine grained carbonate rocks , axial plane is seen mostly in the hinge regions of folds . Small scale movements along axial planes are quite wide - spread in ...
... shales , where it can be mistaken for bedding planes . In thinly laminated and fine grained carbonate rocks , axial plane is seen mostly in the hinge regions of folds . Small scale movements along axial planes are quite wide - spread in ...
Page 275
P. S. Saklani. TABLE I Colour Aspect Red and Maroon coloured shales 30 % Conglome- Conglomerate rate nil Red ( shale facies ) Reddish brown Grey ( sandstone nil Conglome- Conglome- Conglome- rate 20 % rate 20 % rate 70-80 % facies ) ...
P. S. Saklani. TABLE I Colour Aspect Red and Maroon coloured shales 30 % Conglome- Conglomerate rate nil Red ( shale facies ) Reddish brown Grey ( sandstone nil Conglome- Conglome- Conglome- rate 20 % rate 20 % rate 70-80 % facies ) ...
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