Sample XAL-32

NavDat sample number 51535 · TUFF

Sample

Sample ID	XAL-32
Rock name	TUFF
Rock type	VOLCANIC
Composition	FELSIC
Material	IGNEOUS
Comment	Silicic

Location

Latitude	21.3275
Longitude	-104.816
Location	Mexico
State / province	Nayarit

Age

Age (Ma)	Error	Min	Max	Geologic age	Dated by
4.97		4.95	4.99

Analyses

Whole rock

Item	Value	Std. dev.	Unit	Method
SIO2	76.3		WT%	ICPMS
TIO2	0.1		WT%	ICPMS
AL2O3	14.2		WT%	ICPMS
FE2O3T	2.15		WT%	ICPMS
MNO	0.04		WT%	ICPMS
MGO	0		WT%	ICPMS
CAO	0.05		WT%	ICPMS
NA2O	3.09		WT%	ICPMS
K2O	4.02		WT%	ICPMS
P2O5	0.04		WT%	ICPMS
TOTAL	100		WT%	ICPMS
LOI	3.3		WT%	ICPMS
BA	30		PPM	ICPMS
SR	7		PPM	ICPMS
Y	79		PPM	ICPMS
ZR	382		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