Session No. 28
	Sunday, 2 November 2003: 8:00 AM-12:00 PM
	
	
	 Volcanology (Posters)
	
	
	
		
	
Authors will be present from .
	
	 
	
	
	
	
	
	
	
	 
	
		
	
	
		54 
		
	
		
	
	
		
			
				HYDROTHERMAL ALTERATION OF MAGNETIC MINERALS IN THE VALLES CALDERA CORES
			
			
				
					ROTH, Alexander L.1, VEROSUB, Kenneth L.
2, GOFF, Fraser
3 and PIKE, Christopher R.
1, (1)Geology, UC Davis, One Shields Ave, Davis, CA 95616, (2)Earth and Planetary Sciences, UC Davis, One Shields Ave, Davis, CA 95616, (3)LANL, Los Alamos, alroth@geology.ucdavis.edu, alroth@geology.ucdavis.edu
 
			
			
				
			
		
	 
 
	
		
	
	
		55 
		
	
		
	
	
		
			
				ORIGIN OF BASALTS IN THE MIDDLE-UPPER TRIASSIC STRATA OF THE ISCHIGUALASTO BASIN, NW ARGENTINA
			
			
				
					CHAPMAN, Matthew L. and CURRIE, Brian S., Dept of Geology, Miami Univ, 114 Shideler Hall, Oxford, OH 45056, chapmaml@muohio.edu, chapmaml@muohio.edu