Shivam Sharma posted an Question
September 01, 2020 • 15:53 pm 30 points
  • CSIR NET
  • Earth Sciences

(a) the schematic map below shows the distribution of mineral assemblages (shown by open symbols) in a regionally metamorphosed rock (x) of uniform bulk rock co

A is Greenschist facies B is Amphibolite Facies C is not Eclogite as plagioclase is present. please address all the parts.

2 Answer(s) Answer Now
  • 1 Likes
  • 3 Comments
  • 0 Shares
  • comment-profile-img>
    Sajan sarthak best-answer

    Mafic bulk composition Greenschist, Amphibolite, Granulite B I metamorphic assemblage of pelite in granulite facies Grt-crd-Sill-Kfs-qtz Barrovian

  • comment-profile-img>
    Rahul kumar Best Answer

    (a) (i)Bulk composition of X is basic (for eg. basalt) (ii) A- Greenschist facies B- Amphibolite facies C- Granulite facies (b) (i) Assemblage likely to develop in zone C in case of normal pelite is garnet + k feldspar + sillimanite/Kyanite + quartz + plagioclase + hypersthene (ii) Regional metamorphic series or, Barrowian series Refer to the attached figure for mineral assemblages in facie

    eduncle-logo-app

    Why u reported this question ?

whatsapp-btn

Do You Want Better RANK in Your Exam?

Start Your Preparations with Eduncle’s FREE Study Material

  • Updated Syllabus, Paper Pattern & Full Exam Details
  • Sample Theory of Most Important Topic
  • Model Test Paper with Detailed Solutions
  • Last 5 Years Question Papers & Answers