Sample DS90-55

NavDat sample number 51052 · RHYOLITE

Sample

Sample ID	DS90-55
Rock name	RHYOLITE
Rock type	VOLCANIC
Composition	FELSIC
Material	IGNEOUS

Location

Latitude	46.2519
Longitude	-121.876
State / province	Washington

Age

Age (Ma)	Error	Min	Max	Geologic age	Dated by
19		5	34

Analyses

Whole rock

Item	Value	Std. dev.	Unit	Method
SIO2	72.51		WT%	UNKNOWN
TIO2	0.41		WT%	UNKNOWN
AL2O3	14.36		WT%	UNKNOWN
FEOT	3.27		WT%	UNKNOWN
MNO	0.08		WT%	UNKNOWN
MGO	0.69		WT%	UNKNOWN
CAO	1.25		WT%	UNKNOWN
NA2O	5.26		WT%	UNKNOWN
K2O	2.09		WT%	UNKNOWN
P2O5	0.08		WT%	UNKNOWN
TOTAL	99.42		WT%	UNKNOWN
LOI	1.55		WT%	UNKNOWN

References

Smith, Steven M National Geochemical Database?eformatted Data from the National Uranium Resource Evaluation (NURE) Hydrogeochemical and Stream Sediment Reconnaissance (HSSR) Program. http://pubs.usgs.gov/of/1997/ofr-97-0492/