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Saravanan, S.
- Prehnitization in the Impure Calcareous Bands of Sankaridrug, Salem District, Tamil Nadu, India
Abstract Views :174 |
PDF Views:125
Authors
Affiliations
1 Department of Geology, Presidency College, Madras, IN
1 Department of Geology, Presidency College, Madras, IN
Source
Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 12, No 3 (1971), Pagination: 303-305Abstract
No Abstract.- Plumasite from Alappanur, North Arcot District, Tamil Nadu
Abstract Views :183 |
PDF Views:142
Authors
Affiliations
1 Department of Geology, Presidency College, Madras, IN
1 Department of Geology, Presidency College, Madras, IN
Source
Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 13, No 2 (1972), Pagination: 197-198Abstract
No Abstract.- Geochemistry and Petrogenesis of Shonkinite and Associated Alkaline Rocks of Tiruppattur Carbonatite Complex, Tamil Nadu
Abstract Views :202 |
PDF Views:1
Authors
S. Saravanan
1,
R. Ramasamy
2
Affiliations
1 18, Natesan Salai, Madras, 600 083, IN
2 Tamil Nadu State Department of Geology and Mining, Madras 600 032, IN
1 18, Natesan Salai, Madras, 600 083, IN
2 Tamil Nadu State Department of Geology and Mining, Madras 600 032, IN
Source
Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 46, No 3 (1995), Pagination: 235-243Abstract
Shonkinite occurring in the carbonatite complex of Tiruppattur, Tamil Nadu is essentially composed of equal proportions of anorthoclase and augite with accessories of olivine, hastingsite, biotite, apatite and magnetite. The carbonatite complex comprises alkaline rocks emplaced in two adjacent structural basins of Sevvattur and Jogipatti. The chemical composition of shonkinite is intermediate between melanocratic rocks, alkali syenites and soda-rich alkali syenites of the Sevvattur structural basin and highly potassic alkaline rocks of the Jogipaui structural basin. Both these basins constitute the carbonatite complex of Tiruppattur. The study of geochemistry of clinopyroxenes in the co-magmatic alkaline series of the carbonatite complex reveals that both the groups of alkaline rocks were derived from shonkinitic parent magma by convection current aided differentiation and fractionation of mafic cumulates with intermittent immiscible separations of carbonate and silicate liquids.Keywords
Alkaline rocks. Clinopyroxene, Geochemistry, Tiruppattur, Tamil Nadu.- Calc-Granulites Around Manalur, South and North Arcot Districts, Tamil Nadu, India
Abstract Views :173 |
PDF Views:2
Authors
Affiliations
1 Department of Geology, Presidency College, Madras, IN
1 Department of Geology, Presidency College, Madras, IN