Deccan Traps - Chemical Composition

Chemical Composition

Within the Deccan Traps at least 95% of the lavas are tholeiitic basalts, however other rock types do occur:

  • Alkali basalts
  • Nephelinites
  • Lamprophyre
  • Carbonatites

Mantle xenoliths have been described from Kachchh (northwestern India) and elsewhere in the western Deccan.

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