Sample PC-77

NavDat sample number 4913 · ANDESITE

Sample

Sample ID	PC-77
Rock name	ANDESITE
Rock type	VOLCANIC
Composition	INTERMEDIATE
Material	IGNEOUS

Location

Latitude	40.6417
Longitude	-111.373
Location	Park City Mining District
State / province	Utah

Age

Age (Ma)	Error	Min	Max	Geologic age	Dated by
35		34	36

Analyses

Whole rock

Item	Value	Std. dev.	Unit	Method
SIO2	60.8		WT%	RAPID_ROCK
AL2O3	16.5		WT%	RAPID_ROCK
FE2O3	4		WT%	RAPID_ROCK
FEO	2		WT%	RAPID_ROCK
MGO	2.6		WT%	RAPID_ROCK
CAO	5.2		WT%	RAPID_ROCK
NA2O	3.6		WT%	RAPID_ROCK
K2O	2.7		WT%	RAPID_ROCK
H2O_MINUS	0.52		WT%	RAPID_ROCK
H2O	0.78		WT%	RAPID_ROCK
TIO2	0.72		WT%	RAPID_ROCK
P2O5	0.41		WT%	RAPID_ROCK
MNO	0.06		WT%	RAPID_ROCK
TOTAL	100		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