Sample F55

NavDat sample number 10440

Sample

Sample ID	F55
Rock type	VOLCANIC
Material	IGNEOUS

Location

Latitude	40.4208
Longitude	-121.503
State / province	California
Volcanic field	Lassen volcanic center
Location comment	East side of Mill Canyon

Age

Age (Ma)	Error	Min	Max	Geologic age	Dated by
0.53		0.45	0.6	Quaternary

Analyses

Whole rock

Item	Value	Std. dev.	Unit	Method
SIO2	64.34		WT%	UNKNOWN
AL2O3	15.85		WT%	UNKNOWN
FEO	4.62		WT%	UNKNOWN
MGO	3.05		WT%	UNKNOWN
CAO	4.89		WT%	UNKNOWN
NA2O	3.92		WT%	UNKNOWN
K2O	2.35		WT%	UNKNOWN
TIO2	0.7		WT%	UNKNOWN
P2O5	0.2		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