Sample A-108D

NavDat sample number 58071 · ANDESITE

Sample

Sample ID	A-108D
Rock name	ANDESITE
Rock type	VOLCANIC
Composition	INTERMEDIATE
Material	IGNEOUS

Location

Latitude	30.4333
Longitude	-110.2
Location	Cerro Las Jarillas
State / province	Sonora
Country	Mexico
Location comment	Arizpe-Bacanuchi

Age

Age (Ma)	Error	Min	Max	Geologic age	Dated by
58.67		58.5	58.84

Analyses

Whole rock

Item	Value	Std. dev.	Unit	Method
SIO2	67.53		WT%	XRF
AL2O3	14.83		WT%	XRF
FE2O3	4.29		WT%	XRF
FEO	0.13		WT%	XRF
MGO	0.8		WT%	XRF
CAO	2.73		WT%	XRF
NA2O	2.49		WT%	XRF
K2O	3.82		WT%	XRF
TIO2	0.64		WT%	XRF
P2O5	0.14		WT%	XRF
MNO	0.04		WT%	XRF
LOI	2.68		WT%	XRF
BA	683		PPM	ICPMS
CE	53.23		PPM	ICPMS
ND	22.29		PPM	ICPMS
SM	4.42		PPM	ICPMS
EU	0.87		PPM	ICPMS
YB	1.51		PPM	ICPMS
TH	9		PPM	ICPMS
RB	138		PPM	ICPMS
SR	1352		PPM	ICPMS
Y	16		PPM	ICPMS
NB	6		PPM	ICPMS
ZR	154		PPM	ICPMS

References

Gonzalez Leon, Carlos M; McIntosh, William C; Lozano-Santa Cruz,Rufino; Valencia-Moreno, Martin; Amaya-Martinez, Ricardo; Rodriguez-Castaneda, Jose Luis (2000) Cretaceous and Tertiary sedimentary, magmatic, and tectonic evolutionof north-central Sonora (Arizpe and Bacanuchi quadrangles), NorthwestMexico. Geological Society of America Bulletin, vol.112, no.4, pp.600-610, Apr2000 doi:10.1130/0016-7606(2000)112<600:CATSMA>2.0.CO;2