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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... refraction seismograms in Brahmaputra Valley . By P. N. Nayak , D. N. Lahkar and N. C. Sarkar A note on the geophysical and geochemical studies carried out in Gamnom area , Manipur East district , Manipur By R. S. Bhattacharya and ...
... refraction seismograms in Brahmaputra Valley . By P. N. Nayak , D. N. Lahkar and N. C. Sarkar A note on the geophysical and geochemical studies carried out in Gamnom area , Manipur East district , Manipur By R. S. Bhattacharya and ...
Page 72
... REFRACTION ARRIVALS. RECORDS GS waves may be obscured in the zone of inter- ference . Beyond the critical distance , the reflected BONGAIGAON - waves ( wide angle reflections ) follow the trend of the direct waves on the seismogram ...
... REFRACTION ARRIVALS. RECORDS GS waves may be obscured in the zone of inter- ference . Beyond the critical distance , the reflected BONGAIGAON - waves ( wide angle reflections ) follow the trend of the direct waves on the seismogram ...
Page 77
... refraction events as observed near Bongaigaon , Assam . The corresponding refraction seismo- gram is shown in Plate 9. 4 . Reflection events are observed to be stronger than refrection events on seismograms taken near Bongaigaon area ...
... refraction events as observed near Bongaigaon , Assam . The corresponding refraction seismo- gram is shown in Plate 9. 4 . Reflection events are observed to be stronger than refrection events on seismograms taken near Bongaigaon area ...
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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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