Sample 8

NavDat sample number 8975 · TRACHYTE

Sample

Sample ID	8
Rock name	TRACHYTE
Rock type	VOLCANIC
Composition	INTERMEDIATE
Material	IGNEOUS

Location

Latitude	35.1
Longitude	-115.225
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	64.44		WT%	UNKNOWN
TIO2	0.92		WT%	UNKNOWN
AL2O3	17.62		WT%	UNKNOWN
FE2O3	3.51		WT%	UNKNOWN
MNO	0.04		WT%	UNKNOWN
MGO	0.33		WT%	UNKNOWN
CAO	1.2		WT%	UNKNOWN
NA2O	5.28		WT%	UNKNOWN
K2O	5.89		WT%	UNKNOWN
LOI	0.88		WT%	UNKNOWN
TOTAL	99.23		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.