Himalayan Geology: A Collection of Papers Presented at the Symposium Held in Calcutta During October 1963 |
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Page 4
... granite . At one place the contact between the intrusive granite and the intruded gneiss is distinctly observed . The contact is a vertical plane formed due to the arrangement of tourmaline needles one below another . About 2.4 km . of ...
... granite . At one place the contact between the intrusive granite and the intruded gneiss is distinctly observed . The contact is a vertical plane formed due to the arrangement of tourmaline needles one below another . About 2.4 km . of ...
Page 143
... granite is locally associated with small porphyritic granite and mediumgrained grey granite , poor in biotite . With local concentration of mica , the biotite - rich granite passes into a schistose rock . The contact of the biotite rich ...
... granite is locally associated with small porphyritic granite and mediumgrained grey granite , poor in biotite . With local concentration of mica , the biotite - rich granite passes into a schistose rock . The contact of the biotite rich ...
Page 152
... granite ( assumed by Dainelli ) . Though instances are there that at many places the granite is of Tertiary age . “ The official opinion of the GSI as expressed in Hayden's great work ( 1934 ) is that the Himalayan granite is Cretaceous ...
... granite ( assumed by Dainelli ) . Though instances are there that at many places the granite is of Tertiary age . “ The official opinion of the GSI as expressed in Hayden's great work ( 1934 ) is that the Himalayan granite is Cretaceous ...
Contents
Chowdhury and B Das Sharma | 9 |
vi Traverses in the Himalaya of U P A Ranga Rao | 31 |
ii Geomorphology and the Himalayas P C Hazra and B N Raina | 47 |
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Alaknanda alluvium anticline Auden bands basin belt Bhagirathi biotite Blaini boulder bed carbonaceous Chails Chandpur chlorite clay colour conglomerate correlation Cretaceous deposits dolomite east exposed fault felspars flysch folded foliation foothills formations fossils Ganga Garhwal geochemical Geol Geological Survey geologists geophysical glacial glacier gneiss granite grey Himalaya indicate Indus flysch Jaunsars Jutogh Kalagarh Karewas Kashmir Krol Ladakh Larji limestone lithological Lower Siwalik Mandhali Mandi mapping metamorphic metres Middle Siwalik migmatites mineral mineralisation moraines Nagthat nappe nodules occur orogeny outcrops overlain overlying Panjal peaks pebbles phyllites Pleistocene Pradesh present Punjab purple quartz quartzite Ramganga region river salt sandstones schistose schists sediments seismic sequence shales Shali Simla Simla slates Siwalik snout Spiti stratigraphic structures Subathu Surv Survey of India Sutlej syncline tectonic terraces Tertiary thick thrust plane tion unconformity Upper Siwalik upto valley volcanic zone