Atlantis Online
September 21, 2020, 04:49:29 am
Welcome, Guest. Please login or register.

Login with username, password and session length
News: Ruins of 7,000-year-old city found in Egypt oasis
http://news.yahoo.com/s/afp/20080129/wl_mideast_afp/egyptarchaeology
 
  Home Help Arcade Gallery Links Staff List Calendar Login Register  

Metamorphism


Pages: 1 [2]   Go Down
  Print  
Author Topic: Metamorphism  (Read 1398 times)
Rebecca
Superhero Member
******
Posts: 5201



« Reply #15 on: May 29, 2007, 11:37:45 pm »

Gneissic Mineral Banding
The layering in a rock in which bands or lenses of granular minerals (quartz and feldspar) alternate with bands or lenses in which platy (mica) or elongate (amphibole) minerals predominate.

      The most intense form of foliation is mineral banding. At the highest grades of metamorphism, minerals begin to segregate into separate bands. The micaceous minerals separate from the quartz and feldspars.

Report Spam   Logged
Pages: 1 [2]   Go Up
  Print  
 
Jump to:  

Powered by EzPortal
Bookmark this site! | Upgrade This Forum
SMF For Free - Create your own Forum
Powered by SMF | SMF © 2016, Simple Machines
Privacy Policy