Sample 45M

NavDat sample number 37955 · DACITE

Sample

Sample ID	45M
Rock name	DACITE
Rock type	VOLCANIC
Composition	FELSIC
Material	IGNEOUS
Comment	lh (age code)

Location

Latitude	41.6
Longitude	-121.6
Location	Medicine Lake Volcano
State / province	California

Age

Age (Ma)	Error	Min	Max	Geologic age	Dated by
0		0	0.005	Late Holocene

Analyses

WHOLE ROCK, MINERAL

Item	Value	Std. dev.	Unit	Method
D18O	7.8		PERMILL	MS
D18O	8.5		PERMILL	MS
SIO2	68.5		WT%	XRF

References

Adami, L. H.; Hildreth, W. H.; Donnelly-Nolan, J. M. (1996) Oxygen isotope analyses of 166 rock samples from Medicine Lake Volcano, California. Open-File Report - U. S. Geological Survey. 1996.