Now showing items 21-30 of 207
Our changing coastlines
Our coastlines keep alive the sense of continuing creation and of the relentless drive of life In recent years, much has been done both to understand the processes that underlie their creation and to exploit their environment ...
Nature, distribution and origin of clay minerals in grain size fractions of sediments from manganese nodule field, Central Indian Ocean Basin
DT, IR and X-ray diffraction analyses have been carried out on 3 grain size fractions (1, 1-2 and 2-4 mu m) of sediments from the Central Indian Ocean Basin. Results indicate that there are 2 smectite minerals (montmorillonite ...
Texture, carbonate content and component composition of Mauritius beach sands, Indian Ocean
(Tirunelveli: JCSONLINE, 1988)
Samples collected from beaches bordering the southern, southeastern, western and northwestern shores representing swell (windward) and non-swell (leeward) dominated environments of the island of Mauritius were studied in ...
Geoscientific investigations on the Indian coast: Their application to interpret the paleoclimates and future sea level changes with special reference to greenhouse effect
Objectives of this paper are: (1) To delineate the paleo sea level fluctuations and erosional environmental changes along the Indian Coast and their relationship with the changing coastline and human settlements in the ...
Mineralogy of the carbonate sediments - western continental shelf of India
An X-ray diffraction study of forty-six sediment samples and three oolitic limestone samples from the western continental shelf of India shows that aragonite is the dominant carbonate mineral (99% maximum), followed by ...
Magnetic surveys of the continental shelf off Visakhapatnam
(Indian Association for Limnology and Oceanography, 1980)
Continuous magnetic surveys over the continental shelf off Visakhapatnam reveal total magnetic field anomalies of high amplitude and short period over the inner shelf and of comparatively low amplitude with long period ...
Offshore extension of the structural element of Udipi, confirmation from marine magneties
(Geological Society of India, 1987)
The isomagnetic anomaly map (1:3,00,000) reflects conspicuous E-W, NW-SE, WNW-ESE, NE-SW and N-S trends which are similar to that of the onshore Dharwar trend. The map also shows short wavelength, high amplitude anomalies ...
Distribution of strontium in sediments of the Minicoy atoll, Lakshadweep
Sr content in 67 sediment samples collected from the Minicoy reef and lagoon varies from 3960 to 7000 ppm (av. 5630 ppm). The concentration increases from the reef (c 4,000 ppm) in the north and west to the centre of the ...
Petrology of offshore basalts of Bombay harbour area, west coast of India
Recent marine geological and geophysical surveys indicate that the Deccan Traps extend to the offshore area of Bombay. Cores from bore holes in Deccan Traps collected from Bombay Harbour have been classified as basalts, ...
Recent foraminifera from polluted marine environment of Velsao beach, South Goa, India
(Museum d'histoire naturelle de Geneve, 1986)