Crustal influences in the petrogenesis of the Malani rhyolites, southwestern Rajasthan: Combined trace element and oxygen isotope constraints

A. Maheshwari*, M. Coltorti, A. N. Sial, G. Mariano

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

17 Citations (Scopus)

Abstract

The Malani volcanics of Gurapratap Singh and Diri belong to a basalt-andesite -daciterhyolite association of Precambrian age. The preponderance of rhyolites over basic and intermediate rocks is a significant feature of the area. The rhyolities are characterised by chemical features, which indicate their A-type affinity. The study rules out their cogeneticity and suggests the crustal involvement in the genesis of Malani rhyolites.

Original languageEnglish
Pages (from-to)611-619
Number of pages9
JournalJournal of the Geological Society of India
Volume47
Issue number5
Publication statusPublished - May 1996
Externally publishedYes

Keywords

  • Malani Volcanics
  • Oxygen Isotopes
  • Petrology
  • Rajasthan

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