Sample PC-398

NavDat sample number 4911 · ANDESITE

Sample

Sample ID	PC-398
Rock name	ANDESITE
Rock type	VOLCANIC
Composition	INTERMEDIATE
Material	IGNEOUS

Location

Latitude	40.6811
Longitude	-111.435
Location	Park City Mining District
State / province	Utah

Age

Age (Ma)	Error	Min	Max	Geologic age	Dated by
36.4		35.1	37.7

Analyses

Whole rock

Item	Value	Std. dev.	Unit	Method
SIO2	58.9		WT%	RAPID_ROCK
AL2O3	16.1		WT%	RAPID_ROCK
FE2O3	3.3		WT%	RAPID_ROCK
FEO	3.4		WT%	RAPID_ROCK
MGO	3.2		WT%	RAPID_ROCK
CAO	5.2		WT%	RAPID_ROCK
NA2O	3.2		WT%	RAPID_ROCK
K2O	3		WT%	RAPID_ROCK
H2O_MINUS	1.4		WT%	RAPID_ROCK
H2O	0.25		WT%	RAPID_ROCK
TIO2	0.94		WT%	RAPID_ROCK
P2O5	0.45		WT%	RAPID_ROCK
MNO	0.14		WT%	RAPID_ROCK
TOTAL	99		WT%	RAPID_ROCK

References

Bromfield, C S; Erickson, A J, Jr; Haddadin, M A; Mehnert, H H (1977) Potassium-argon ages of intrusion, extrusion, and associated oredeposits, Park City mining district, Utah. Economic Geology and the Bulletin of the Society of EconomicGeologists, vol.72, no.5, pp.837-848, Aug 1977 doi:10.2113/gsecongeo.72.5.837