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Page 43
Garnet-staurolite zone The pelitic schists have developed gamet and staurolite
together with coarsening of grain size and prominent schistosity. The schistosity
is defined by a strong preferred orientation of coarse matrix, white mica and
biotite ...
Garnet-staurolite zone The pelitic schists have developed gamet and staurolite
together with coarsening of grain size and prominent schistosity. The schistosity
is defined by a strong preferred orientation of coarse matrix, white mica and
biotite ...
Page 80
Overprinting of S,-surfaces has led to complete or partial obliteration of the
bedding schistosity (S1). Lepidoblastic shreds of biotite-I occur along the foliation
(S2). Greenish to brown biotite-ll is superimposed on the foliation (S 2) which is
also ...
Overprinting of S,-surfaces has led to complete or partial obliteration of the
bedding schistosity (S1). Lepidoblastic shreds of biotite-I occur along the foliation
(S2). Greenish to brown biotite-ll is superimposed on the foliation (S 2) which is
also ...
Page 652
Thin quartz veins are ubiquitous along the schistosity planes. Microscopical ly,
biotite, muscovite and lenticles of quartz define the schistosity. Biotite shows light
brown to dark brown pleochroism. Gamet occurs as small grains wrapped by ...
Thin quartz veins are ubiquitous along the schistosity planes. Microscopical ly,
biotite, muscovite and lenticles of quartz define the schistosity. Biotite shows light
brown to dark brown pleochroism. Gamet occurs as small grains wrapped by ...
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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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