Sample R7

NavDat sample number 54565 · TUFF

Sample

Sample ID	R7
Rock name	TUFF
Rock type	VOLCANIC
Composition	FELSIC
Material	IGNEOUS
Comment	Red Rock Canyon, Washoe Co., Nevada [SE 1/4, NE 1/4, NW 1/4, SE 1/4, Sec 32 T23N, R18E] Stratigraphic section of the Nine Hill Tuff. Crystal Vitric densely welded devitrified upper phase tuff

Latitude	39.9081
Longitude	-119.952
State / province	Nevada
Location comment	Red Rock Canyon Stratigraphic Sequence

Age (Ma)	Error	Min	Max	Geologic age	Dated by
22.78		19.21	26.34

Item	Value	Unit	Method
SIO2	69.91	WT%	XRF
TIO2	0.43	WT%	XRF
AL2O3	15.95	WT%	XRF
FEO	1.82	WT%	XRF
MNO	0.03	WT%	XRF
MGO	0.41	WT%	XRF
CAO	1.04	WT%	XRF
NA2O	3.94	WT%	XRF
K2O	5.28	WT%	XRF
P2O5	0.13	WT%	XRF
CU	-5	PPM	XRF
ZN	72	PPM	XRF
GA	23	PPM	XRF
RB	148	PPM	XRF
SR	105	PPM	XRF
Y	31	PPM	XRF
ZR	323	PPM	XRF
NB	23	PPM	XRF
CS	7	PPM	XRF
BA	2051	PPM	XRF
PB	35	PPM	XRF
TH	20	PPM	XRF
LA	56	PPM	XRF
CE	107	PPM	XRF
PR	17	PPM	XRF
ND	29	PPM	XRF
SM	-8	PPM	XRF