Anukruti posted an MCQ
October 18, 2020 • 03:26 am 30 points
  • IIT JAM
  • Geology (GG)

What process can cause zoning as observed in zone1?

Choose Your Answer:
1 Attempts Submit Now
  • 1 Likes
  • 1 Comments
  • 0 Shares
  • comment-profile-img>
    Sajan sarthak Best Answer

    Zoning occurs when disequilibrium is attained by any means that may be due to fast cooling /rapid heat loss . Disequilibrium means the diffusion of CA Al,Nasi can't be possible so the albiterich Na rich will develop above it without being diffrused and nucleation will start upon the boundary of early formed anorthite rich solid.

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