Sample LB90-81B

NavDat sample number 61039 · ANDESITE

Sample

Latitude	40.6718
Longitude	-121.165
State / province	California
Volcanic field	Regional Volcanic Rocks, Older than the Caribou Volcanic Field

Age (Ma)	Error	Min	Max	Geologic age	Dated by
2.65		0	5.3

Item	Value	Unit	Method
SIO2	58.83	WT%	WDXRF
AL2O3	17.72	WT%	WDXRF
FE2O3	1.33	WT%	WDXRF
FEO	4.78	WT%	WDXRF
FEOT	5.98	WT%	WDXRF
MGO	3.84	WT%	WDXRF
CAO	7.25	WT%	WDXRF
NA2O	3.49	WT%	WDXRF
K2O	1.75	WT%	WDXRF
TIO2	0.7	WT%	WDXRF
P2O5	0.2	WT%	WDXRF
MNO	0.1	WT%	WDXRF
LOI	0.36	WT%	LOI
TOTAL	99.58	WT%	WDXRF
MG_NUMBER	58.9		WDXRF
RB	49	PPM	EDXRF
SR	513	PPM	EDXRF
BA	688	PPM	EDXRF
Y	27	PPM	EDXRF
ZR	141	PPM	EDXRF
NB	7	PPM	EDXRF
NI	44	PPM	EDXRF
CU	56	PPM	EDXRF
ZN	70	PPM	EDXRF
CR	72	PPM	EDXRF