Maps
    Geologic Transect Across the Northern Sierra Madre Occidental Volcanic Field, Chihuahua and Sonora, Mexico
    Fred W. McDowell
    
    Data Originator:
    Fred W. McDowell
    Department of Geological Sciences, Jackson School of Geosciences, The University of Texas at Austin
    
    doi: 10.1130/2007.DMCH006
    Year: 2007
    Area: Coordinates: 28°40',-108°48' (NW corner); 28°00',105°48' (SW corner)
    Scale: 1:250,000; 1:80,000
    Resolution: 300 dpi
    
    Projection
    UTM
    Parameters: unprojected; spheroid WGS84; UTM zones 12, 13
    Units: decimal degrees
    Precision: double
    Description:
    
    Keywords: Mexico, Sierra Madre Occidental, ignimbrite field, geology, geochronology, geochemistry, Map Images (PDF)
  
Map image file (PDF):
    
	
Geograpic Information System (GIS) files:
What is GIS?Notes file (PDF):