Record Details

A petrographic study of Precambrian quartzites from Goa coast

DRS at CSIR-National Institute of Oceanography

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Title A petrographic study of Precambrian quartzites from Goa coast
 
Creator Wagle, B.G.
Rajamanickam, G.V.
 
Subject Geology and Geophysics
metamorphism
classification
quartzite
heavy minerals
precambrian
petrology
ISW, India, Goa
 
Description 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 current bedding and ripple marks. From the petrographic studies, the present quartzites are classified as micaceous and sericitic arkosic wacke. The composition of earlier sandstones prior to the metamorphism is inferred as clayey sandstone arkosic wacke. The heavy minerals like tourmaline, topaz, zircon, rutile, fluorite, apatite and hornblende lead to a source of acidic composition. The introduction of tourmaline and fluorite in the wacke, the grade of metamorphism and the source of the wacke have been discussed
 
Date 1995-05-01T09:57:11Z
2017-09-29T13:48:47Z
1995-05-01T09:57:11Z
2017-09-29T13:48:47Z
1980
 
Type Journal Article
 
Identifier Mahasagar, vol.13; 1980; 9-21
0542-0938
http://drs.nio.org/drs/handle/2264/6787
 
Language en
 
Relation Mahasagar
NON-SCI
 
Publisher Indian Association for Limnology and Oceanography