Batuan Di Bawah Mikroskop | Clastic Rock | Granite

Please download to get full document.

View again

of 50
All materials on our website are shared by users. If you have any questions about copyright issues, please report us to resolve them. We are always happy to assist you.
Information Report
Category:

Documents

Published:

Views: 34 | Pages: 50

Extension: PPT | Download: 0

Share
Related documents
Description
batuan
Transcript
  Batuan di bawah Mikroskop  CarbonatiteCarbonatites are igneous rocks consisting of more that 50% carbonate minerals, such as calcite or dolomite. Subordinate minerals are biotite, px, ol  Clinopyroxenite Clinoproxenite is o!er 0% clinoproxene. #hese rocks form as segregates during differentiation of mafic magma, and the are present in some ophiolites.#he picture shows andhedral clinoproxene grains, some with exsolution lamellae of orthoproxene, and sutured grain boundaries.  $iorit n the photographs large, twinned plagioclase crstals and hornblende grains in a finer matrix pro!ide porphritic texture. $iorites contain less than &5% ferromagnesian minerals' plagioclase composition is tpicall (n&0)50. $iorites are common in )tpe batholiths associated with subduction *ones. #he are the intrusi!e e+ui!alents of andesites.
We Need Your Support
Thank you for visiting our website and your interest in our free products and services. We are nonprofit website to share and download documents. To the running of this website, we need your help to support us.

Thanks to everyone for your continued support.

No, Thanks