Sample LC83-393

NavDat sample number 61220 · DACITE

Sample

Latitude	40.5075
Longitude	-121.477
State / province	California
Volcanic field	Lassen Volcanics, Eagle Peak Sequence

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

Item	Value	Unit	Method
SIO2	55.2	WT%	WDXRF
AL2O3	19.04	WT%	WDXRF
FE2O3	1.56	WT%	WDXRF
FEO	5.62	WT%	WDXRF
FEOT	7.03	WT%	WDXRF
MGO	4.56	WT%	WDXRF
CAO	9.17	WT%	WDXRF
NA2O	3.09	WT%	WDXRF
K2O	0.79	WT%	WDXRF
TIO2	0.73	WT%	WDXRF
P2O5	0.12	WT%	WDXRF
MNO	0.12	WT%	WDXRF
LOI	0.11	WT%	LOI
TOTAL	99.38	WT%	WDXRF
MG_NUMBER	59.1		WDXRF
RB	7	PPM	EDXRF
SR	637	PPM	EDXRF
BA	204	PPM	EDXRF
Y	14	PPM	EDXRF
ZR	76	PPM	EDXRF
NB	1	PPM	EDXRF
NI	20	PPM	EDXRF
CU	48	PPM	EDXRF
ZN	47	PPM	EDXRF
CR	36	PPM	EDXRF