Sample CN85-41

NavDat sample number 15908 · ANDESITE

Sample

Sample ID	CN85-41
Rock name	ANDESITE
Rock type	VOLCANIC
Composition	INTERMEDIATE
Material	IGNEOUS
Comment	Knickerbocker andesite

Location

Latitude	39.2783
Longitude	-119.649
Location	Alta shaft
State / province	Nevada

Age

Age (Ma)	Error	Min	Max	Geologic age	Dated by
13.3		12.6	14

Analyses

Mineral

Item	Value	Std. dev.	Unit	Method
SIO2	57.02		WT%	UNKNOWN
TIO2	0.79		WT%	UNKNOWN
AL2O3	17.78		WT%	UNKNOWN
FE2O3	6.58		WT%	UNKNOWN
MNO	0.14		WT%	UNKNOWN
MGO	2.37		WT%	UNKNOWN
CAO	8.03		WT%	UNKNOWN
NA2O	3.61		WT%	UNKNOWN
K2O	1.51		WT%	UNKNOWN
P2O5	0.16		WT%	UNKNOWN
LOI	2.73		WT%	UNKNOWN
TOTAL	100.88		WT%	UNKNOWN

References

Vikre, Peter G; McKee, Edwin H; Silberman, Miles L (1988) Chronology of Miocene hydrothermal and igneous events in the western Virginia Range, Washoe, Storey, and Lyon counties, Nevada. Economic Geology and the Bulletin of the Society of Economic Geologists. 83; 4, Pages 864-874. 1988.