Sample H68-10

NavDat sample number 125517 · PERIDOTITE

Sample

Sample ID	H68-10
Rock name	PERIDOTITE
Rock type	PLUTONIC
Composition	ULTRAMAFIC
Material	IGNEOUS

Location

Latitude	47.5578
Longitude	-110.213
Location	Haystack Butte
State / province	Montana

Age

Age (Ma)	Error	Min	Max	Geologic age	Dated by
48		43.2	52.8

Analyses

Whole rock

Item	Value	Std. dev.	Unit	Method
U	3.8		PPM	INAA
TH	30.1		PPM	INAA
PB206_PB204	17.986			MS
PB207_PB204	15.48			MS
PB208_PB204	38.493			MS

References

O'Brien, Hugh E; Irving, Anthony J; McCallum, I S; Thirlwall, MatthewF (1995) Strontium, neodymium, and lead isotope evidence for the interaction ofpost-subduction asthenospheric potassic mafic magmas of the HighwoodMountains, Montana, USA, with ancient Wyoming craton lithosphericmantle. Geochimica et Cosmochimica Acta, vol.59, no.21, pp.4539-4556, Nov1995 doi:10.1016/0016-7037(95)99266-J