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 81
... sillimanite or corundum or sillimanite- corundum association as massive bodies in a sillimani- te - bearing meta - pelite schist of high grade metamorphism is a rarity in nature . In this respect the sillimanite - corundum occurrence at ...
... sillimanite or corundum or sillimanite- corundum association as massive bodies in a sillimani- te - bearing meta - pelite schist of high grade metamorphism is a rarity in nature . In this respect the sillimanite - corundum occurrence at ...
Page 85
... sillimanite - quartz - schist , sillimanite - biotite ( cordierite ) -schist and sillimanite quartzite , all the three types showing mutually gradational contacts . The sillimanite quartz - schist exhibits a well deve- loped foliation ...
... sillimanite - quartz - schist , sillimanite - biotite ( cordierite ) -schist and sillimanite quartzite , all the three types showing mutually gradational contacts . The sillimanite quartz - schist exhibits a well deve- loped foliation ...
Page 87
... Sillimanite - Corundum Bodies Petrographically the sillimanite - bearing rocks of Sonapahar area consist mainly of sillimanite , quartz , cordierite , biotite and corundum with rutile , plagio- clase and other opaques as accessory ...
... Sillimanite - Corundum Bodies Petrographically the sillimanite - bearing rocks of Sonapahar area consist mainly of sillimanite , quartz , cordierite , biotite and corundum with rutile , plagio- clase and other opaques as accessory ...
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