Sample Guad1

NavDat sample number 51523 · RHYOLITE

Sample

Sample ID	Guad1
Rock name	RHYOLITE
Rock type	VOLCANIC
Composition	FELSIC
Material	IGNEOUS
Comment	Lava Flow

Location

Latitude	20.7428
Longitude	-103.586
Location	Mexico
State / province	Jalisco

Age

Age (Ma)	Error	Min	Max	Geologic age	Dated by
3.27		3.25	3.29

Analyses

Whole rock

Item	Value	Std. dev.	Unit	Method
SIO2	70.8		WT%	ICPMS
TIO2	0.52		WT%	ICPMS
AL2O3	15.1		WT%	ICPMS
FE2O3T	2.92		WT%	ICPMS
MNO	0.07		WT%	ICPMS
MGO	0.19		WT%	ICPMS
CAO	0.93		WT%	ICPMS
NA2O	5.27		WT%	ICPMS
K2O	4.12		WT%	ICPMS
P2O5	0.08		WT%	ICPMS
TOTAL	100		WT%	ICPMS
LOI	1.47		WT%	ICPMS
BA	1168		PPM	ICPMS
SR	173		PPM	ICPMS
Y	58		PPM	ICPMS
ZR	368		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