Mexico- Pinacates Volcanic Field
Cochise College         

Virtual Geology Field Trips
Virtual Geology Museum
Geology Home Page

Roger Weller, geology instructor   

wellerr@cochise.edu   copyright 2008-R.Weller

 
Cerro Colorado
base surge deposits
Blocks of granite have been brought up to the surface by the violent eruption.
 

Photo is copyright free for non-commercial educational uses. 
Just credit photo to R.Weller/Cochise College.