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Page 135
At places, it is rich in plagioclase (An,0). The schistose quartzite is granoblastic
and contain small amount of sericitized oligoclase and orthoclase, muscovite,
biotite with actinolite, apatite, chlorite, epidote, hornblende and magnetite as ...
At places, it is rich in plagioclase (An,0). The schistose quartzite is granoblastic
and contain small amount of sericitized oligoclase and orthoclase, muscovite,
biotite with actinolite, apatite, chlorite, epidote, hornblende and magnetite as ...
Page 137
Thus the skialiths, including quartzite (massive and schistose) below the
gneisses possess more of quartz and plagioclase. A large mass of quartz-biotite
schist (semipeltic) shows incomplete replacement. The quartzo feldspathic
material is ...
Thus the skialiths, including quartzite (massive and schistose) below the
gneisses possess more of quartz and plagioclase. A large mass of quartz-biotite
schist (semipeltic) shows incomplete replacement. The quartzo feldspathic
material is ...
Page 541
Plagioclase shows alteration to sericite sometimes with a clear rim. Wavy
extinction and deformed twin lamellae give evidences of later deformation post-
dating its crystallization. In the zones A and B, microclinemicroperthite occurs as
coarse ...
Plagioclase shows alteration to sericite sometimes with a clear rim. Wavy
extinction and deformed twin lamellae give evidences of later deformation post-
dating its crystallization. In the zones A and B, microclinemicroperthite occurs as
coarse ...
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Contents
The Central Himalayan Gneisses in Northem Pakistan | 1 |
Ductile Shearing in Peridotites of Spongtang Nappe Ladakh | 27 |
LowPressure Metamorphism in a Regionally Metamorphic | 39 |
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Common terms and phrases
Almora amphibolite andalusite assemblages augen gneiss axes axial plane bedding belt Berinag Bhutan biotite Buxa Central Crystallines Chail Chail Nappes chlorite Chomolongma crenulation cleavage defined defonnation developed eastem F2 folds fabric facies faults feldspar field first flattening foliation Fonnation Formation fractures gamet Gansser Garhwal Garhwal Himalaya garnet Geol Geology girdle gneiss Gondwana grade grains granite gneiss Group Himalaya isograd Jour Jutogh Khola Khumbu Krol Kumaun kyanite Lesser Himalaya limestone lithological lower Main Central Thrust Makalu metasediments mica schist micaceous migmatites mineral lineation muscovite mylonitic nappe Nepal northem occur orientation parallel pattem pelitic Phaplu phase of deformation phyllites plagioclase porphyroblasts Pradesh Precambrian quartz quartzite reaction rocks Saklani schist schistosity sedimentary sediments sequence sericite shear significant sillimanite Simla Siwalik Siyom slates southem staurolite stratigraphic strike-slip structural Surv syncline tectonic texture Thimpu thrust sheet thrust zone trend upper Valdiya valley westem
Bibliographic information
| Title | Himalaya: geological aspects Himalaya: Geological Aspects, P. S. Saklani, ISBN 8189304003, 9788189304003 Volume 15 of Current trends in geology Volume 2 of Himalaya:, P. S. Saklani, ISBN 8189304003, 9788189304003 |
| Author | P. S. Saklani |
| Editor | P. S. Saklani |
| Publisher | Satish Serial Pub. House, 2005 |
| ISBN | 8190228986, 9788190228985 |
| Length | 660 pages |
| Subjects | › › Geology Geology, Structural Metamorphism (Geology) Science / Earth Sciences / Geology |
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