Sample AME-4

NavDat sample number 51540 · RHYOLITE

Sample

Sample ID	AME-4
Rock name	RHYOLITE
Rock type	VOLCANIC
Composition	FELSIC
Material	IGNEOUS
Comment	Lava Flow

Location

Latitude	20.7035
Longitude	-104.244
Location	Mexico
State / province	Jalisco

Age

Age (Ma)	Error	Min	Max	Geologic age	Dated by
21.3		21.2	21.4

Analyses

Whole rock

Item	Value	Std. dev.	Unit	Method
SIO2	75.8		WT%	ICPMS
TIO2	0.19		WT%	ICPMS
AL2O3	12.9		WT%	ICPMS
FE2O3T	1.72		WT%	ICPMS
MNO	0.1		WT%	ICPMS
MGO	0.18		WT%	ICPMS
CAO	0.28		WT%	ICPMS
NA2O	4.23		WT%	ICPMS
K2O	4.59		WT%	ICPMS
P2O5	0.02		WT%	ICPMS
TOTAL	100		WT%	ICPMS
LOI	0.87		WT%	ICPMS
BA	461		PPM	ICPMS
SR	55		PPM	ICPMS
Y	44		PPM	ICPMS
ZR	253		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