Anukruti posted an Question
October 02, 2020 • 17:54 pm 30 points
  • IIT JAM
  • Geology (GG)

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    Rahul kumar best-answer

    Ans- Iridium Deccan traps have been cited as a possible alternative source of Iridium. High iridium concentration at K/T boundary can be a result of alkaline rocks associated with Deccan traps.

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    Sajan sarthak Best Answer

    High Iridium concentration of alkaline rocks of Deccan trap. Apart from tholeiitic basalts, which constitute the bulk (∼99%) of Deccan, numerous though minor regions of alkali basalts, carbonatitic and acidic rocks are known to occur; they have not been analyzed for PGE and their iridium contribution at KTB is not known.

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