Nature, characterization and resource potential of littoral placer deposits of Goa, central west coast of India

Gujar, A.R.; Iyer, Sridhar D.; Udayaganesan, P.; Ambre, N.V.; Mislankar, P.G.; Dhinesh, S.

doi:10.1007/s43217-021-00064-5

Cited by 6 publications

(2 citation statements)

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“…The formation and concentration of heavy minerals differ from place to place based on sea wave directions and dynamics, interstitial separation, underwater current, sorting factors influenced by the confluence of sea and river. This is corroborated by the variations in heavy mineral accumulation, which probably suggest that the beach morphology and sediment characters are influenced by energy domains along the coast (Gujar , 2021). The wave characteristics and energy are governed by coastal configuration, outcrops and river discharge (Nayak, 1997).…”

Section: Depositional Environmentmentioning

confidence: 94%

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Sediment Properties and Provenance Study of Heavy Minerals Along Chinnavilai and Erayumanthurai Beach, South West Coast of India

Gandhi¹,

Gayathri²,

Panicker³

et al. 2023

JGSR

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The Chinnavilai and Erayumanthurai beach sediments of the Kanyakumari District consist of medium-grained, moderately well-sorted, unimodal, occasionally bimodal, mesokurtic, leptokurtic and platykurtic. The fine skewed and symmetrical nature of sediments implies the prevalence of high and low energy, entailing a mixed distribution of coarse and fine sediments. The washing and backwashing of waves cause the coarser sediments to retainment and entrapped amidst finer sediments. The heavy minerals distribution reflects that the less content in Erayumanthurai samples, whereas the Manavalakurichi, Enayam, Kurumpanai sediments comprise >60%. The oval shape zircon is devoid of inclusions, whereas, the euhedral zircons comprise subhedral inclusions. Distinct fractures in zircons are caused due to transportation by waves and currents. The garnet and zircon grains are well-rounded, implying the source for these sediments are an admixture of medium to high-grade metamorphic rocks, reworked sediments, charnockite, and granite gneisses. Keywords : Sediment Texture, Provenance, Heavy Minerals, Kanyakumari,South West Coast of India

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Section: Depositional Environmentmentioning

confidence: 94%

“…This is also attributable to the widely varying nature of sediments and the change in gradients of the coastline. The kurtosis value is probably due to the transport and mixing of sediments of different energy environments (Gujar , 2021).…”

Section: Sediment Propertiesmentioning

confidence: 99%