Sample NE20

NavDat sample number 31929

Sample

Sample ID	NE20
Rock type	VOLCANIC
Material	IGNEOUS

Location

Latitude	18.9
Longitude	-99.65
Location	S Tenancingo
State / province	Mexico

Age

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

Analyses

Whole rock

Item	Value	Std. dev.	Unit	Method
SIO2	62.9		WT%	UNKNOWN
TIO2	0.6		WT%	UNKNOWN
AL2O3	16.6		WT%	UNKNOWN
FE2O3	1.85		WT%	UNKNOWN
FEO	2.03		WT%	UNKNOWN
MNO	0.06		WT%	UNKNOWN
MGO	2.9		WT%	UNKNOWN
CAO	4		WT%	UNKNOWN
NA2O	4.3		WT%	UNKNOWN
K2O	2.35		WT%	UNKNOWN
H2O_PLUS	1.47		WT%	UNKNOWN
H2O_MINUS	0.2		WT%	UNKNOWN
TOTAL	99.26		WT%	UNKNOWN

References

Robin, C (1982) Relations volcanologie - magmatologie - geodynamique; application au passage entre volcanisme alcalin et andesitique dans le Sud mexicain Axe Trans-mexicain et Province Alcaline Orientale. Annales Scientifiques de l'Universite de Clermont, 2: Geologie, Mineralogie. 70; 1982.