Sample LR89006

NavDat sample number 35704 · TUFF

Sample

Sample ID	LR89006
Rock name	TUFF
Rock type	VOLCANIC
Composition	FELSIC
Material	IGNEOUS

Location

Latitude	37.9156
Longitude	-106.921
Location	Nelson Mountain
State / province	Colorado

Age

Age (Ma)	Error	Min	Max	Geologic age	Dated by
26.4		26	30

Analyses

Whole rock

Item	Value	Std. dev.	Unit	Method
RB	114		PPM	MS-ID
SR	243.9		PPM	MS-ID
ND	51.2		PPM	MS-ID
SM	8.9		PPM	MS-ID
SR87_SR86	0.70768			MS
ND143_ND144	0.512176			MS

References

Riciputi, Lee R; Johnson, Clark M; Sawyer, David A; Lipman, Peter W (1995) Crustal and magmatic evolution in a large multicyclic caldera complex; isotopic evidence from the central San Juan volcanic field. Journal of Volcanology and Geothermal Research. 67; 1-3, Pages 1-28. 1995. . doi:10.1016/0377-0273(94)00097-Z