Sample LC84-634

NavDat sample number 61277 · RHYODACITE

Sample

Latitude	40.5272
Longitude	-121.522
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	61.39	WT%	WDXRF
AL2O3	17.77	WT%	WDXRF
FE2O3	1.16	WT%	WDXRF
FEO	4.17	WT%	WDXRF
FEOT	5.22	WT%	WDXRF
MGO	1.91	WT%	WDXRF
CAO	4.5	WT%	WDXRF
NA2O	4.93	WT%	WDXRF
K2O	2.66	WT%	WDXRF
TIO2	0.91	WT%	WDXRF
P2O5	0.47	WT%	WDXRF
MNO	0.12	WT%	WDXRF
LOI	0.19	WT%	LOI
TOTAL	99.49	WT%	WDXRF
MG_NUMBER	44.9		WDXRF
RB	57	PPM	EDXRF
SR	466	PPM	EDXRF
BA	868	PPM	EDXRF
Y	25	PPM	EDXRF
ZR	229	PPM	EDXRF
NB	22	PPM	EDXRF