Sample LC80-399

NavDat sample number 61059 · RHYODACITE

Sample

Latitude	40.5018
Longitude	-121.565
State / province	California
Volcanic field	Lassen Volcanics, Bumpass Sequence

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

Item	Value	Unit	Method
SIO2	68.59	WT%	WDXRF
AL2O3	15.93	WT%	WDXRF
FE2O3	0.64	WT%	WDXRF
FEO	2.32	WT%	WDXRF
FEOT	2.89	WT%	WDXRF
MGO	1.42	WT%	WDXRF
CAO	3.43	WT%	WDXRF
NA2O	4.36	WT%	WDXRF
K2O	2.68	WT%	WDXRF
TIO2	0.43	WT%	WDXRF
P2O5	0.12	WT%	WDXRF
MNO	0.08	WT%	WDXRF
LOI	0.66	WT%	LOI
TOTAL	98.8	WT%	WDXRF
MG_NUMBER	52.2		WDXRF
RB	68	PPM	EDXRF
SR	364	PPM	EDXRF
BA	806	PPM	EDXRF
Y	17	PPM	EDXRF
ZR	163	PPM	EDXRF
NB	8	PPM	EDXRF
NI	12	PPM	EDXRF
CU	5	PPM	EDXRF
ZN	31	PPM	EDXRF
CR	3	PPM	EDXRF