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 72
... REFLECTION AND 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 ...
... REFLECTION AND 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 ...
Page 76
... REFLECTION TIME 590 591 599 -180 596 210 608 225 617 236 615 618 633 630 295 693 600 308 637 630 322 640 660 340 645 690 352 649 720 360 645 MOIT XX XX 590 XST XX 112099 ROADTADWOR PLATE 9.5 REFLECTIONS -Ted OE ( --- ) 3J80337 ...
... REFLECTION TIME 590 591 599 -180 596 210 608 225 617 236 615 618 633 630 295 693 600 308 637 630 322 640 660 340 645 690 352 649 720 360 645 MOIT XX XX 590 XST XX 112099 ROADTADWOR PLATE 9.5 REFLECTIONS -Ted OE ( --- ) 3J80337 ...
Page 77
... reflection signals near point of critical angle . The reflections near the critical distance are indistinct due to interference with other waves . Plate 9.3 Reflection and refraction events as observed near Bongaigaon , Assam . The ...
... reflection signals near point of critical angle . The reflections near the critical distance are indistinct due to interference with other waves . Plate 9.3 Reflection and refraction events as observed near Bongaigaon , Assam . The ...
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