Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Photomicrographs of thin section under cross-polarized transmitted light microscopy of the quartzite (a,b), innocuous granite (c) and reactive mylonite (d): Q = quartz; Kf = K-feldspar; Pl = plagioclase; B = biotite; Pl = plagioclase; M = mica.
