Sample 914

NavDat sample number 66270 · DACITE

Sample

Sample ID	914
Alternate ID	AWB-108
Rock name	DACITE
Rock type	VOLCANIC
Composition	FELSIC
Material	IGNEOUS
Comment	Calc_alkaline

Location

Latitude	43.7505
Longitude	-117.328
State / province	Oregon
Elevation	1109
Location comment	Oregon-Idaho Graben

Age

Age (Ma)	Error	Min	Max	Geologic age	Dated by
8.25		5.3	11.2	late Miocene

Analyses

Whole rock

Item	Value	Std. dev.	Unit	Method
SIO2	69		WT%	XRF
AL2O3	15.46		WT%	XRF
TIO2	0.39		WT%	XRF
FEOT	2.96		WT%	XRF
MNO	0.1		WT%	XRF
CAO	3.72		WT%	XRF
MGO	1.79		WT%	XRF
K2O	2.97		WT%	XRF
NA2O	3.47		WT%	XRF
P2O5	0.12		WT%	XRF
LOI	2.77		WT%	XRF
TOTAL	100.3		WT%	XRF
CR	47		PPM	ICP
BA	1450		PPM	ICP
RB	82		PPM	ICP
SR	427		PPM	ICP
ZR	105		PPM	ICP
Y	23		PPM	ICP
NB	0		PPM	ICP

References

Ramp, Len; Ferns, Mark L (1989) Geology and mineral resources map of the Double Mountain Quadrangle, Malheur County, Oregon. Geological Map Series (Portland). 1989.