Sample RM185A

NavDat sample number 33426 · SYENITE

Sample

Sample ID	RM185A
Rock name	SYENITE
Rock type	PLUTONIC
Composition	INTERMEDIATE
Material	IGNEOUS

Location

Latitude	29.25
Longitude	-103.55
Location	central zone, Rattlesnake Mountain sill
State / province	Texas

Age

Age (Ma)	Error	Min	Max	Geologic age	Dated by
28.6		26	38

Analyses

Whole rock

Item	Value	Std. dev.	Unit	Method
SIO2	56.14		WT%	XRF
TIO2	2.19		WT%	XRF
AL2O3	17.45		WT%	XRF
FEOT	6.2		WT%	ICPAES
MNO	0.13		WT%	XRF
MGO	1.79		WT%	XRF
CAO	3.78		WT%	XRF
NA2O	6.32		WT%	XRF
K2O	4.88		WT%	XRF
P2O5	0.44		WT%	XRF
TOTAL	99.32		WT%	XRF
RB	103.8		PPM	ICPAES
SR	540		PPM	ICPAES
ZR	610		PPM	ICPAES
BA	1330		PPM	ICPAES

References

Carman-Max-F Jr.. (1994) Mechanisms of differentiation in shallow mafic alkaline intrusions, as illustrated in the Big Bend area, western Texas. Journal of Volcanology and Geothermal Research. 61; 1-2, Pages 1-44. 1994. .