Sample CH1

NavDat sample number 10808 · ANDESITE

Sample

Sample ID	CH1
Alternate ID	2330
Rock name	ANDESITE
Rock type	VOLCANIC
Composition	INTERMEDIATE
Material	IGNEOUS

Location

Latitude	19.68
Longitude	-97.45
Location	Los Humeros
State / province	Puebla

Age

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

Analyses

Whole rock

Item	Value	Std. dev.	Unit	Method
SIO2	59.34		WT%	UNKNOWN
TIO2	1.4		WT%	UNKNOWN
AL2O3	16.72		WT%	UNKNOWN
FE2O3	1.85		WT%	UNKNOWN
FEO	4.59		WT%	UNKNOWN
MNO	0.12		WT%	UNKNOWN
MGO	2.63		WT%	UNKNOWN
CAO	5.38		WT%	UNKNOWN
NA2O	5		WT%	UNKNOWN
K2O	2.27		WT%	UNKNOWN
P2O5	0.35		WT%	UNKNOWN
LOI	0.54		WT%	UNKNOWN
H2O_MINUS	0.19		WT%	UNKNOWN
TOTAL	100.38		WT%	UNKNOWN

References

Verma, Surendra P; Lopez, M M (1982) Geochemistry of Los Humeros Caldera, Puebla, Mexico. Bulletin Volcanologique. 45; 1, Pages 63-79. 1982. doi:10.1007/BF02600390