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Sediment distribution and placer mineral enrichment in the inner shelf of Quilon, SW coast of lndia

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Title Sediment distribution and placer mineral enrichment in the inner shelf of Quilon, SW coast of lndia
 
Creator Prakash, T.N.
 
Description 120-127
Surficial sediment samples from the innershelf off Quilon, SW coast of India have been
examined for the sediment type, placer distribution and titanium content. A
major portion of the innershelf is covered with sands and silty clays. The
southern shelf and outer-innershelf of the northern shelf are covered with
moderately sorted medium sand whereas poorly sorted silty clays occur mostly in
the northern shelf. The total heavy mineral content in the shelf varies from 1 to
12%. It is generally seen that high percentage of heavy mineral occurs in the
sandy sediments. The results of Q-mode factor analysis indicate the spatial
distribution of factors, which reflect the grain-sorting pattern of heavy
minerals in the shelf. The distribution of titanium shows marked variation with
texture of the sediments. The titanium content is higher in the southern shelf
region where sandy sediments dominate. The near- innershelf of the northern
shelf contains higher concentration of titanium with a decreasing tendency
towards the outer- innershelf indicating the lithogenous  origin. The distribution of heavy minerals and
titanium in the innershelf indicates net sediment movement towards the northern
shelf region where rich concentrations of placer minerals occur along the
coast.
 
Date 2014-01-07T12:11:58Z
2014-01-07T12:11:58Z
2000-06
 
Type Article
 
Identifier 0975-1033 (Online); 0379-5136 (Print)
http://hdl.handle.net/123456789/25333
 
Language en_US
 
Rights CC Attribution-Noncommercial-No Derivative Works 2.5 India
 
Publisher NISCAIR-CSIR, India
 
Source IJMS Vol.29(2) [June 2000]