Gurmeet Singh posted an Question
December 16, 2020 • 04:50 am 30 points
  • IIT JAM
  • Geology (GG)

Pick the odd one out a a poikilitic c porphyroclast dribbon texture b pseudotachylite (bhu- 2013)

Pick the odd one out A A Poikilitic C Porphyroclast DRibbon texture B Pseudotachylite (BHU- 2013)

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    Sajan sarthak best-answer

    porphyroclast is a metamorphic texture that others are Igneous so..that should be odd one

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    Saurabh 1 Best Answer

    Correct answer :A..... Poikilitic belongs to igneous textures or the term used in igneous petrology while others are used in case of metamorphic petrology(or metamorphic textures)

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    porphyroblast is metamorphic & porphyroclast is igneous..is it not so?

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    No, blast and clasts are for the term mainly in metamorphic petrology.....

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    I think you have read these two terms in metamorphic texture and structure (from jd winter)

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    study material

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    wht is igneous clast called?

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    There ia no specific term like clasts in igneous rocks... But you can say it a pyroclasts (most probably produced due to explosive volcanism).... And best example is your pyroclastic rocks....

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    I suggest you to go through jd winter's second chapter. And also do read metamorphic texture and structure from jd winter only not from other sources... Else you can post your questions whenever you feel like and we will surely help you out..

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