Records of the Geological Survey of India, Volume 112, Part 4The Survey, 1982 - 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 26
... Valley show that the thicknesses of the Barail and the Tipam Groups decrease in a North - Westerly direction . The combined thickness of the Alluvium , Dhekiajuli and Namsang Formations , however , increases towards the North - West of ...
... Valley show that the thicknesses of the Barail and the Tipam Groups decrease in a North - Westerly direction . The combined thickness of the Alluvium , Dhekiajuli and Namsang Formations , however , increases towards the North - West of ...
Page 27
... Valley , appears to be limited to a thin range over major portion of the Upper Assam Valley . ( d ) The upper part of Kopili alternations is devoid of marine fauna which are typical of the lower Kopili and Sylhet Limestone Formations ...
... Valley , appears to be limited to a thin range over major portion of the Upper Assam Valley . ( d ) The upper part of Kopili alternations is devoid of marine fauna which are typical of the lower Kopili and Sylhet Limestone Formations ...
Page 30
... valley . In the cases of the more argillaceous sediments , the north - westerly reduction of thickness is more marked . Therefore , sand content in the sedimentary succession increases towards the Himalayas . Geological evidence from ...
... valley . In the cases of the more argillaceous sediments , the north - westerly reduction of thickness is more marked . Therefore , sand content in the sedimentary succession increases towards the Himalayas . Geological evidence from ...
Contents
OF | 1 |
A note on the Gondwana sediments of Singrimari Hallidaygunj Meghalaya | 7 |
A note on the uranium mineralisation in Cretaceoussedimentary rocks near Gomaghat Khasi Hills | 17 |
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Alluvium Anek arkose Arunachal Pradesh Assam assemblage Atomic Minerals Division Barail Group basin beds Bhuban Formation Biostratigraphy Boka Bil Formation Brahmaputra Burma carbonaceous Chatterjee coal seams coalfield conglomerate Cretaceous Darrangiri deposits diamictite Dielasma Disang Formation Disang Group Eocene Eurydesma exposed fauna foraminifera fossil Garo Hills gastropod Geol Geological Survey GHOSH Girujan Clay Formation Gomaghat Himalayas horizon Jaintia Group Khasi Hills Kopili Formation Kuklung Langrin Mahadeo Formation Makum Manipur marine MATHUR Meghalaya metres Miocene Miocene age Mukherjee Nagaland Nenkhara Noet Nummulites occurs Oligocene PLATE pyrite range region rocks Rotalia Sahni samples sandstone Sarbhog Satsangi sedimentary sediments sequence shales Shillong Plateau Siang district SINGH Singrimari SINHA species stratigraphic studied Subansiri sulphur Surma Surma Group Surv Survey of India Sylhet Sylhet Limestone Talchir taxa Tertiary thickness tillite Tipam Group trace elements Tripura Tura Unconformity Unpublished GSI Upper Assam uranium uranium mineralisation Vred Zone