Sample ZA8

NavDat sample number 29264 · ANDESITE

Sample

Sample ID	ZA8
Alternate ID	366
Rock name	ANDESITE
Rock type	VOLCANIC
Composition	INTERMEDIATE
Material	IGNEOUS
Comment	Instituto de Geologia, UNAM / IMP Mexico

Location

Latitude	20.92
Longitude	-100.189
Location	V. Zamorano
State / province	Guanajuato

Age

Age (Ma)	Error	Min	Max	Geologic age	Dated by
10.9	0.5	7.5	11

Analyses

Whole rock

Item	Value	Std. dev.	Unit	Method
SIO2	61.1		WT%	UNKNOWN
TIO2	0.83		WT%	UNKNOWN
AL2O3	18.49		WT%	UNKNOWN
FEOT	4.7		WT%	UNKNOWN
MNO	0.09		WT%	UNKNOWN
MGO	2.53		WT%	UNKNOWN
CAO	5.36		WT%	UNKNOWN
NA2O	1.2		WT%	UNKNOWN
K2O	2.03		WT%	UNKNOWN
P2O5	0.05		WT%	UNKNOWN
H2O_PLUS	1.26		WT%	UNKNOWN
H2O_MINUS	0.49		WT%	UNKNOWN
TOTAL	99.13		WT%	UNKNOWN

References

Carrasco, Nunez Gerardo; Milan, Marcos; Verma, Surendra P (1989) Geologia del Volcan Zamorano, Estado de Queretaro. Revista - Instituto de Geologia. 8; 2, Pages 195-201. 1989.