Sample KB 89-72

NavDat sample number 8678 · ANDESITE

Sample

Sample ID	KB 89-72
Alternate ID	193
Rock name	ANDESITE
Rock type	VOLCANIC
Composition	INTERMEDIATE
Material	IGNEOUS
Comment	Un. Clermond Ferrand, France

Location

Latitude	19.12
Longitude	-101.5
Location	Nevado de Toluca
State / province	Michoacan

Age

Age (Ma)	Error	Min	Max	Geologic age	Dated by
2		1	3	Pleistocene

Analyses

Whole rock

Item	Value	Std. dev.	Unit	Method
SIO2	59		WT%	UNKNOWN
TIO2	0.68		WT%	UNKNOWN
AL2O3	17.22		WT%	UNKNOWN
FE2O3	1.33		WT%	UNKNOWN
FEO	4.25		WT%	UNKNOWN
MNO	0.15		WT%	UNKNOWN
MGO	4.34		WT%	UNKNOWN
CAO	6.3		WT%	UNKNOWN
NA2O	4.14		WT%	UNKNOWN
K2O	2.2		WT%	UNKNOWN
H2O_PLUS	0.2		WT%	UNKNOWN
H2O_MINUS	0.03		WT%	UNKNOWN

References

Cantagrel, J M; Robin, C; Vincent, P (1981) Les grandes etapes d'evolution d'un volcan andesitique composite; exemple du Nevado de Toluca Mexique. Bulletin Volcanologique. 44; 2, Pages 177-188. 1981.