IIT JAM
Gurmeet singh Asked a Question
December 23, 2020 2:23 pmpts 30 pts
  • IIT JAM
  • Geology (GG)

. greywacke sandstone indicates: a. active provenance tectonics and prolonged transport b. stable provenance and prolonged trans- port c. active provenance tect

. Greywacke sandstone indicates: A. Active provenance tectonics and prolonged transport B. Stable provenance and prolonged trans- port C. Active provenance tectonics and less trans- port D. Stable provenance and less transport (BHU-2012)
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  • Sajan sarthak Best Answer
    Greywacke is a kind of sandstone in which the sand grains are set in a fine “muddy” matrix. The fine grained matrix is at once the essential characteristic of greywacke and the ess...
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  • Owishi Sarkar thankyou
    The answer should be C) active provenance tectonics and less transport. As greywackes have more matrix and are poorly sorted it forms due to less transport of sediments.
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  • Rahul kumar
    Answer: Active provenance and less transport Greywacke are immature sedimentary rocks dominantly composed of framework grains like feldspar and lithic fragments with high matrix c...
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    Gurmeet singh
    but sir dekhajaye toh feldspar bhi kafi stables hota hai.
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