Sample MV-23

NavDat sample number 127392 · GRANODIORITE

Sample

Sample ID	MV-23
Rock name	GRANODIORITE
Rock type	PLUTONIC
Composition	INTERMEDIATE
Material	IGNEOUS
Comment	age from 1983-053076

Location

Latitude	28.7636
Longitude	-111.905
Location	Bahia Kino
State / province	Sonora
Country	MEXICO
Location comment	Bahia Kino

Age

Age (Ma)	Error	Min	Max	Geologic age	Dated by
81.5		79.5	83.5

Analyses

Whole rock

Item	Value	Std. dev.	Unit	Method
SIO2	66.7		WT%	XRF
TIO2	0.53		WT%	XRF
AL2O3	15.1		WT%	XRF
FE2O3	1.36		WT%	XRF
FEO	2.58		WT%	XRF
MNO	0.07		WT%	XRF
MGO	1.7		WT%	XRF
CAO	3.83		WT%	XRF
NA2O	3.19		WT%	XRF
K2O	2.8		WT%	XRF
P2O5	0.11		WT%	XRF
LOI	0.95		WT%	IGN
LA	31.18		PPM	ICPMS
CE	69.12		PPM	ICPMS
ND	26.86		PPM	ICPMS
SM	3.84		PPM	ICPMS
EU	0.76		PPM	ICPMS
TB	0.5		PPM	ICPMS
YB	1.52		PPM	ICPMS
LU	0.16		PPM	ICPMS
RB	73		PPM	ICPMS
SR	150		PPM	ICPMS
BA	882		PPM	ICPMS
ZR	58		PPM	ICPMS
Y	18		PPM	ICPMS
TH	32.57		PPM	ICPMS
TA	1.1		PPM	ICPMS
HF	1.79		PPM	ICPMS
NB	12.35		PPM	ICPMS

References

Valencia-Moreno, Martin; Ruiz, Joaquin; Barton, Mark D; Patchett, P Jonathan; Zuercher, Lukas; Hodkinson, Damian G; Roldan-Quintana, Jaime (2001) A chemical and isotopic study of the Laramide granitic belt of northwestern Mexico; identification of the southern edge of the North American Precambrian basement. Geological Society of America Bulletin, vol.113, no.11, pp.1409-1422, Nov 2001 doi:10.1130/0016-7606(2001)113<1409:ACAISO>2.0.CO;2