Sample PHA95605

NavDat sample number 43514 · TUFF

Sample

Sample ID	PHA95605
Rock name	TUFF
Rock type	VOLCANIC
Composition	FELSIC
Material	IGNEOUS
Comment	Whit tuff of Italian Hill

Location

Latitude	44.9492
Longitude	-120.394
State / province	Oregon
Formation	John Day Formation

Age

Age (Ma)	Error	Min	Max	Geologic age	Dated by
24.8		16	33.6

Analyses

Whole Rock

Item	Value	Std. dev.	Unit	Method
SIO2	66.71		WT%	XRF
AL2O3	11.53		WT%	XRF
TIO2	0.315		WT%	XRF
FEO	2.26		WT%	XRF
MNO	0.046		WT%	XRF
CAO	3.37		WT%	XRF
MGO	0.97		WT%	XRF
K2O	1.03		WT%	XRF
NA2O	1.19		WT%	XRF
P2O5	0.22		WT%	XRF
TOTAL	87.64		WT%	XRF
NI	10		PPM	XRF
CR	5		PPM	XRF
SC	6		PPM	XRF
V	37		PPM	XRF
BA	923		PPM	XRF
RB	32		PPM	XRF
SR	453		PPM	XRF
ZR	152		PPM	XRF
Y	65		PPM	XRF
NB	20		PPM	XRF
GA	17		PPM	XRF
TH	14		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