Now showing items 1-10 of 10
A petrographic study of Precambrian quartzites from Goa coast
(Indian Association for Limnology and Oceanography, 1980)
A petrographic and heavy minerals study of quartzites along the Goa Coast, India has been undertaken to decipher their sediment history. The quartzite outcrops exhibit well preserved primary sedimentary structures like ...
Sediment depositional environment in some bays in Central west coast of India
Sediments in Kalbadevi and Mirya Bays are well sorted while those in Ratnagiri Bay are poorly sorted. Mean size of the sediments varies among the bays. Sediments in Kalbadevi Bay are both positively and negatively skewed ...
Use of shallow seismic surveys in the exploration of nearshore placers off Maharashtra coast, India
Shallow seismic surveys were carried out for 520 lkm in 3 bays viz., Jaigad, Ambwah and Varwada along the Maharashtra coast in the western part of India. In total, 53 traverses were run across the shelf perpendicular to ...
Geophysical investigations off Vijaydurg bay, Maharashtra, west coast of India
Bathymetry of the bay indicates a smooth gradient in the sandy zone while steep gradient is marked off cliffs and headlands. In general, the results of the wave action have been seen by the presence of undulation to the ...
Morphological and interlayer geochemical studies on manganese nodules from the southwestern Carlsberg ridge
Mixed facies of manganese nodules from the southwestern Carlberg Ridge have been analysed for Mn, Fe, Ni, Cu, Co and Zn. Seventy one analyses including the averages presented for outer layer, inner layer and near-core ...
Application of high resolution shallow seismic investigations for marine archaeological sites
(Goa: National Institute of Oceanography, 1988)
Holocene marine transgression as interpreted from bathymetry and sand grain size parameters off Gopalpur
(Indian Academy of Sciences, Bangalore, 1989)
Grain size statistical parameters of the surface sediment samples collected from the innershelf off Gopalpur were calculated using graphic and moment methods. Fine-grained sand present up to 15 m water depth shows symmetrical ...
Effect of waves in the redistribution of sediments along the Konkan coast
(Indian Academy of Sciences, Bangalore, 1986)
From the wave refraction diagrams it is delineated that the Jaigad Head and Warori Bluff are the zones of wave energy convergence and the Narvan and Ambwah bays the areas of wave energy divergence. The presence of two ...
Geological and geophysical exploration for offshore ilmenite placers off the Konkan coast, Maharashtra, India
Detailed offshore surveys (Sextants and microwave position fixing system) of a 130 km long strip along the Konkan Coast (1889 km echosounding, 895 lkm of shallow seismic and 1228 l/km of magnetics followed by 1117 grab and ...