Sample 7

NavDat sample number 8974 · RHYOLITE

Sample

Sample ID	7
Rock name	RHYOLITE
Rock type	VOLCANIC
Composition	FELSIC
Material	IGNEOUS

Location

Latitude	35.125
Longitude	-115.21
Location	Hackberry Mtn
State / province	California

Age

Age (Ma)	Error	Min	Max	Geologic age	Dated by
14.5		11	18

Analyses

Whole rock

Item	Value	Std. dev.	Unit	Method
SIO2	74.17		WT%	UNKNOWN
TIO2	0.29		WT%	UNKNOWN
AL2O3	13.83		WT%	UNKNOWN
FE2O3	1.1		WT%	UNKNOWN
MNO	0.04		WT%	UNKNOWN
MGO	0.14		WT%	UNKNOWN
CAO	0.75		WT%	UNKNOWN
NA2O	4.15		WT%	UNKNOWN
K2O	5.24		WT%	UNKNOWN
LOI	0.91		WT%	UNKNOWN
TOTAL	99.71		WT%	UNKNOWN

References

McCurry, Michael (1982) The geology of a late Miocene silicic volcanic center in the Woods and Hackberry mountains area of the eastern Mojave Desert, San Bernardino County, California. Pages 433-439. 1982.