Sample F85

NavDat sample number 10490

Sample

Sample ID	F85
Rock type	VOLCANIC
Material	IGNEOUS

Location

Latitude	40.5317
Longitude	-121.531
State / province	California
Volcanic field	Lassen volcanic center
Location comment	Chaos Crags Dome 2 of Crandell and others 1974

Age

Age (Ma)	Error	Min	Max	Geologic age	Dated by
0.05		0.045	0.055	Quaternary

Analyses

Whole rock

Item	Value	Std. dev.	Unit	Method
SIO2	70.67		WT%	UNKNOWN
AL2O3	14.4		WT%	UNKNOWN
FEO	2.78		WT%	UNKNOWN
MGO	1.48		WT%	UNKNOWN
CAO	3.32		WT%	UNKNOWN
NA2O	3.82		WT%	UNKNOWN
K2O	2.89		WT%	UNKNOWN
TIO2	0.46		WT%	UNKNOWN
P2O5	0.1		WT%	UNKNOWN
MNO	0.08		WT%	UNKNOWN

References

Clynne, Michael A. (1984) Open-File Report - U. S. Geological Survey, Report: OF 84-0224, 178 pp., 1984