Sample 14

NavDat sample number 1006 · ANDESITE

Sample

Sample ID	14
Rock name	ANDESITE
Rock type	VOLCANIC
Composition	INTERMEDIATE
Material	IGNEOUS

Location

Latitude	44.718
Longitude	-121.951
State / province	Oregon

Age

Age (Ma)	Error	Min	Max	Geologic age	Dated by
4		2	7

Analyses

Whole rock

Item	Value	Std. dev.	Unit	Method
SIO2	59.76		WT%	UNKNOWN
TIO2	1.57		WT%	UNKNOWN
AL2O3	15.99		WT%	UNKNOWN
FEOT	7.46		WT%	UNKNOWN
MNO	0.15		WT%	UNKNOWN
MGO	2.43		WT%	UNKNOWN
CAO	5.59		WT%	UNKNOWN
NA2O	4.72		WT%	UNKNOWN
K2O	1.6		WT%	UNKNOWN
P2O5	0.72		WT%	UNKNOWN
TOTAL	100.02		WT%	UNKNOWN
LOI	1.1		WT%	UNKNOWN

References

Thayer, Thomas Prence (1937) Petrology of later Tertiary and Quaternary rocks of the north-central Cascade Mountains in Oregon, with notes on similar rocks in western Nevada. Geological Society of America Bulletin. 48; 11, Pages 1611-1651. 1937.