Sample ETZ-30

NavDat sample number 51520 · TUFF

Sample

Sample ID	ETZ-30
Rock name	TUFF
Rock type	VOLCANIC
Composition	FELSIC
Material	IGNEOUS
Comment	Silicic

Location

Latitude	20.9907
Longitude	-104.011
Location	Mexico
State / province	Jalisco

Age

Age (Ma)	Error	Min	Max	Geologic age	Dated by
1.5		1.48	1.52

Analyses

Whole rock

Item	Value	Std. dev.	Unit	Method
SIO2	72		WT%	ICPMS
TIO2	0.27		WT%	ICPMS
AL2O3	15.2		WT%	ICPMS
FE2O3T	2.82		WT%	ICPMS
MNO	0.11		WT%	ICPMS
MGO	0.14		WT%	ICPMS
CAO	0.42		WT%	ICPMS
NA2O	4.44		WT%	ICPMS
K2O	4.57		WT%	ICPMS
P2O5	0.03		WT%	ICPMS
TOTAL	100		WT%	ICPMS
LOI	3.98		WT%	ICPMS
BA	638		PPM	ICPMS
SR	93		PPM	ICPMS
Y	42		PPM	ICPMS
ZR	473		PPM	ICPMS

References

Frey, Holli M; Lange, Rebecca A; Hall, Chris M; Delgado-Granados,Hugo; Carmichael, Ian S E (2007) A Pliocene ignimbrite flare-up along the Tepic-Zacoalco Rift; evidencefor the initial stages of rifting between the Jalisco Block (Mexico)and North America. Geological Society of America Bulletin, vol.119, no.1-2, pp.49-64, Jan2007 doi:10.1130/B25950.1