Sample LC81-840

NavDat sample number 61146 · DACITE

Sample

Latitude	40.4892
Longitude	-121.504
State / province	California
Volcanic field	Lassen Volcanics, Twin Lakes Sequence, Younger

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

Item	Value	Unit	Method
SIO2	64.64	WT%	WDXRF
AL2O3	16.76	WT%	WDXRF
FE2O3	0.87	WT%	WDXRF
FEO	3.13	WT%	WDXRF
FEOT	3.91	WT%	WDXRF
MGO	2.61	WT%	WDXRF
CAO	4.91	WT%	WDXRF
NA2O	4.18	WT%	WDXRF
K2O	2.18	WT%	WDXRF
TIO2	0.51	WT%	WDXRF
P2O5	0.13	WT%	WDXRF
MNO	0.07	WT%	WDXRF
LOI	0.04	WT%	LOI
TOTAL	99.97	WT%	WDXRF
MG_NUMBER	59.8		WDXRF
RB	58	PPM	EDXRF
SR	434	PPM	EDXRF
BA	657	PPM	EDXRF
Y	15	PPM	EDXRF
ZR	121	PPM	EDXRF
NB	6	PPM	EDXRF
NI	28	PPM	EDXRF
CU	19	PPM	EDXRF
ZN	34	PPM	EDXRF
CR	26	PPM	EDXRF