Sample PHA91602

NavDat sample number 43499 · ANDESITE

Sample

Sample ID	PHA91602
Rock name	ANDESITE
Rock type	VOLCANIC
Composition	INTERMEDIATE
Material	IGNEOUS
Comment	Andesite of Hancock Canyon

Location

Latitude	44.9231
Longitude	-120.416
State / province	Oregon
Formation	Clarno Formation

Age

Age (Ma)	Error	Min	Max	Geologic age	Dated by
44.8		43.7	45.9

Analyses

Whole Rock

Item	Value	Std. dev.	Unit	Method
SIO2	65.37		WT%	XRF
AL2O3	16.83		WT%	XRF
TIO2	0.617		WT%	XRF
FEO	4.24		WT%	XRF
MNO	0.291		WT%	XRF
CAO	4.45		WT%	XRF
MGO	1.27		WT%	XRF
K2O	1.65		WT%	XRF
NA2O	4.16		WT%	XRF
P2O5	0.135		WT%	XRF
TOTAL	99.01		WT%	XRF
NI	11		PPM	XRF
CR	26		PPM	XRF
SC	14		PPM	XRF
V	86		PPM	XRF
BA	535		PPM	XRF
RB	48		PPM	XRF
SR	425		PPM	XRF
ZR	134		PPM	XRF
Y	11		PPM	XRF
NB	10.4		PPM	XRF
GA	20		PPM	XRF
TH	6		PPM	XRF

References

Bestland, E A; Hammond, P E; Blackwell, D L S; Keys, M A; Retallack, GJ; Stimac, J (2002) Geologic framework of the Clarno Unit, John Day Fossil Beds NationalMonument, central Oregon. Open File Report - State of Oregon, Department of Geology and MineralIndustries, Report: O-02-03, 1 disc, 2002