Srivastava, Rajesh K. (1994) Petrology, petrochemistry and genesis of the Alkaline rocks associated with the Ambadungar Carbonatite Complex, Baroda district, Gujarat, India Journal of the Geological Society of India, 43 . pp. 23-39. ISSN 0016-7622
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Official URL: http://www.springerlink.com/content/121451/
Abstract
The present paper describes the petrology, petrochemistry and genesis of alkaline rocks related to the Ambadungar Carbonatite Complex. These alkaline rocks have been classified as tinguaite, phonolite/phononephelinite, melanephelinite, and syenite/nepheline syenite. The porphyritic variety dominates in the area and important phenocrysts are aegirine/aegirine-augite, feldspars, nepheline, hauyene, analcite and minor mealnite.Chemically they are undersaturated. In the light of new petrological and chemical data presented, the alkaline rocks of Ambadungar are shown to be genetically related to the Carbonatite-Nephelinite magmatism. These are inferred as products of liquid immiscibility from a parental carbonated nephelinitic magma.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Springer. |
| Keywords: | Ambadungar; Alkaline Rocks; Petrology; Geochemistry; Gujarat |
| ID Code: | 74570 |
| Deposited On: | 16 Dec 2011 09:27 |
| Last Modified: | 27 Dec 2011 10:05 |
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