Sample 4

NavDat sample number 8971 · RHYOLITE

Sample

Sample ID	4
Rock name	RHYOLITE
Rock type	VOLCANIC
Composition	FELSIC
Material	IGNEOUS

Location

Latitude	35.2
Longitude	-115.233
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	65.66		WT%	UNKNOWN
TIO2	0.89		WT%	UNKNOWN
AL2O3	15.37		WT%	UNKNOWN
FE2O3	5.98		WT%	UNKNOWN
MNO	0.04		WT%	UNKNOWN
MGO	0.45		WT%	UNKNOWN
CAO	2.68		WT%	UNKNOWN
NA2O	4.28		WT%	UNKNOWN
K2O	4.18		WT%	UNKNOWN
LOI	0.71		WT%	UNKNOWN
TOTAL	99.53		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.