Sample 4RSRB

NavDat sample number 50015

Sample

Sample ID	4RSRB
Rock type	VOLCANIC
Material	IGNEOUS
Comment	MAFIC LAVA

Location

Latitude	28.5639
Longitude	-106.133
State / province	CHIHUAHUA

Age

Age (Ma)	Error	Min	Max	Geologic age	Dated by
31.5		28.35	34.65

Analyses

WHOLE ROCK

Item	Value	Std. dev.	Unit	Method
ND143_ND144	0.512551			MS
SR87_SR86	0.705236			MS
PB206_PB204	18.618			MS
PB207_PB204	15.585			MS
PB208_PB204	38.513			MS

References

Housh, Todd B; McDowell, Fred W (2005) Isotope provinces in Laramide and mid-Tertiary igneous rocks of northwestern Mexico (Chihuahua and Sonora) and their relation to basement configuration. Special Paper - Geological Society of America, vol.393, pp.671-692, 2005 doi:10.1130/2005.2393(25)