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Trends in grain size measures of the quaternary sediments off the vengurla coast maharashtra india with reference to beach morphology and tectonic evolution


, : Trends in grain size measures of the quaternary sediments off the vengurla coast maharashtra india with reference to beach morphology and tectonic evolution. Journal of the Geological Society of India 27(5): 419-427

Field studies along the coast of Vengurla, Maharashtra, reveal presence of stabilised dunes, older and younger raised beaches apart from the present intertidal zone. From these geomorphic features, a fall in sea-level to the extent of about 4 m and 1 m during the Holocene period is suggested. The sediments constituting these geomorphic features have been examined for their grain-size characteristics. Statistical parameters, such as: mean size, standard deviation and skewness have been compared from each geomorphic unit. The comparison indicates reversals in their trends of variation, which have been ascribed to transgressional cycles. It is suggested that tectonic control, which operated either through a relative fall in sea-level or an emergence of the Indian shield during the Holocene period is responsible for the accretionary nature of the beach.

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Related references

Sukhtankar R.K., 1986: Trends in grain-size measures of the Quaternary sediments off the Vengurla coast, Maharashtra; with reference to beach morphology and tectonic evolution. Journal of the Geological Society of India 27(5): 419-427

Chauhan O.S., 1992: Laminae and grain size measures in beach sediments east coast beaches india. The studies of size parameters in 1.8 mm slices in 36 4-cm long cores from different physiographic units of 4 beaches along the east coast of India, having beach states from "reflective" to "dissipative", suggest significant va...

D.S.tya Prasad; G.V.S.S.rma; M.S.bba Rao, 1987: Longshore grain size trends in the Kakinada-Mulapeta Beach, east coast of India. Journal of Earth System Science 96(3): 267-278

Veerayya M.; Shenoi S.S.C.; Murty C.S., 1985: Morphology & grain-size characteristcs of a log-spiral beach at Nagwa (Diu), west coast of India. Indian Journal of Marine Sciences: , Pages 127-132. 1985.

Hanamgond P.T.; Chavadi V.C., 1992: Small scale temporal variations in morphology and grain size characteristics of the sediments of binge beach india. The sediments of Binge Beach are fine to very fine (2.05 to 3.15.phi.), very well to moderately sorted (0.231 to 0.813.phi.), and strongly coarse-skewed to strongly fine-skewed (-0.464 to +0.381) in their grain size characteristics. The spatial di...

Hashimi N.H.; Kidwai R.M.; Nair R.R., 1978: Grain-size & coarse-fraction studies of sediments between Vengurla & Mangalore on the western continental shelf of India. Indian Journal of Marine Sciences: Pages 231-238. 1978.

Nayak G.N., 1989: Grain size parameters and depositional environments of river, beach, and coastal dune sediments near Karwar, west coast of India. Proceedings of the Symposium on Coastal and Ocean Management 6: 4449-4459

Prakash T.N.; Mallik T.K.; Aby Verghese P., 1984: Differentiation of accreted & eroded beach by grain size trends; study in Quilon District of Kerala, west coast of India. Indian Journal of Marine Sciences 13(4): 202-204

Ergin Mustafa; Kapur Selim; Karakas Zehra; Akca Erhan; Kangal Ozgen; Keskin Seref, 1999: Grain size and clay mineralogy of late Quaternary sediments on a tectonically active shelf, the southern Sea of Marmara; clues to hydrographic, tectonic and climatic evolution. Geological Journal: -2, Pages 199-210. 1999.

Abuodha J.O.Z., 2003: Grain size distribution and composition of modern dune and beach sediments, Malindi Bay coast, Kenya. Grain size distribution and heavy mineral content of beach and dune sediments from the Malindi Bay coast, Kenya were determined. Grain sizes were determined by dry sieving sediments; samples represent the upper 5 mm of surficial sediment, collecte...