Records of the Geological Survey of India, Volume 113, Part 4The Survey, 1984 - Earthquakes Vols. 1- include Report of the Geological Survey, 1867- ; v. 32- include Review of the mineral production of India, 1898/1903- ; v. 75 consists of Professional papers, no. 1-16; v. 76 consists of Bulletins of economic minerals. |
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Page 34
... chert etc. The ultramafics show variable degrees of serpentinisation . In general , the regional trend of both the units is NNE - SSW with moderate to steep easterly dip . The ultramafics are mostly massive coarse grai- ned while at ...
... chert etc. The ultramafics show variable degrees of serpentinisation . In general , the regional trend of both the units is NNE - SSW with moderate to steep easterly dip . The ultramafics are mostly massive coarse grai- ned while at ...
Page 89
... chert beds , particularly the red cherts associated with the ophiolite suite are very rich in radio- larian content . They also contain a rich assembl- age of coccolithosphorids suggestive of Upper Cre- taceous age . The fossil ...
... chert beds , particularly the red cherts associated with the ophiolite suite are very rich in radio- larian content . They also contain a rich assembl- age of coccolithosphorids suggestive of Upper Cre- taceous age . The fossil ...
Page 93
... chert traversed by quartz Associated with pillow lavas . and calcite veins . POSITION IN RELATION TO OPHIOLITES Nonclastics associated with the ophiolites. The Disangs Turbidite sequence with invertebrate fossils , intercalated with ...
... chert traversed by quartz Associated with pillow lavas . and calcite veins . POSITION IN RELATION TO OPHIOLITES Nonclastics associated with the ophiolites. The Disangs Turbidite sequence with invertebrate fossils , intercalated with ...
Contents
GEOLOGICAL SURVEY OF INDIA | 1 |
Problems of correlation of PreGondwana rock units of Arunachal Pradesh and adjoining areasa review | 15 |
The Abor Group of rocks in Arunachal Pradesh | 48 |
7 other sections not shown
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Common terms and phrases
Abor Volcanic Arunachal Pradesh assemblage associated axial bands basement bedrock beds belt biotite bore holes Buxa carbonatite Chattopadhyay chert chromite coal seam coalfields complex correlation Cretaceous crystalline Daling Darjeeling developed Disangs dykes exploration fault folds Formation Gamnom garnierite geochemical Geol Geological Survey GHOSH gneiss goethite Gondwana Grade grains granite Group Himalayas horizon ijolite Khasi limestone lineaments Lohit Lohit district Manipur Manipur East Maskut Meghalaya metamorphic migmatites mineral Mishmi Naga Hills Nagaland Nandy nepheline Ni-content North Eastern occur ophiolite ophiolite suite overburden phase Phokphur Plate postulated pyroxene pyroxenite quartz quartzite Ranga valley reflected refraction regional river rocks samples sandstone schist seam/s sedimentary sediments sequence serpentinite shale Shillong Siang district sillimanite Sirohi soil profile Sonapahar stratigraphic structural studies sub-surface Subansiri district Sung Valley Survey of India tectonic Tertiary thickness thrust Tidding serpentinites tion trending ultramafics Unpublished GSI Report upto veins zone