Basalt dikes near Zacamixtle, Mexico

Caption: Dikes near Zacamixtle. Basalt, very dark, compact, and fine grained. Usually show columnar jointing. July 7.

Bibliographic Details
Format: Electronic
Published: University of Alabama Libraries
Subjects:
Online Access:http://purl.lib.ua.edu/109834
Description
Summary:Caption: Dikes near Zacamixtle. Basalt, very dark, compact, and fine grained. Usually show columnar jointing. July 7.