Himalaya: Geological Aspects, Volume 2P. S. Saklani Contributed articles. |
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Page 71
... value of SiO , ranges from 66.45 % to 75.64 % ; the value of K , O ranges from 3.05 % to 5.78 % , and Na2O ranges from 2.75 % to 4.04 % . Most of the values of NaO fall between 2.75 % to 3.68 % . The average content of TiO , being 0.54 ...
... value of SiO , ranges from 66.45 % to 75.64 % ; the value of K , O ranges from 3.05 % to 5.78 % , and Na2O ranges from 2.75 % to 4.04 % . Most of the values of NaO fall between 2.75 % to 3.68 % . The average content of TiO , being 0.54 ...
Page 223
... values . In majority of samples , however , as indicated in Table II , significant departure is noticed between the equivalent U2O , and ẞ / y values which confirms disequilibrium conditions of the uranium in surface samples . The study ...
... values . In majority of samples , however , as indicated in Table II , significant departure is noticed between the equivalent U2O , and ẞ / y values which confirms disequilibrium conditions of the uranium in surface samples . The study ...
Page 225
... values which can be explained due to potash metasomatism and hydrothermal mineralisation . TABLE IV Trace element ... values of 0.71 . Since this assumption may not always be valid % F the calculated values have been termed as apparent ...
... values which can be explained due to potash metasomatism and hydrothermal mineralisation . TABLE IV Trace element ... values of 0.71 . Since this assumption may not always be valid % F the calculated values have been termed as apparent ...
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