Sample 99-120

NavDat sample number 41383 · ADAKITE

Sample

Sample ID	99-120
Rock name	ADAKITE
Rock type	VOLCANIC
Composition	INTERMEDIATE
Material	IGNEOUS

Location

Latitude	27.5
Longitude	-113.5
Location	Cerro La Chichita
State / province	Baja California Sur
Country	MEXICO
Location comment	Vizcaino

Age

Age (Ma)	Error	Min	Max	Geologic age	Dated by
11		10.2	11.8

Analyses

Whole Rock

Item	Value	Std. dev.	Unit	Method
SIO2	67		WT%	ICPAES
AL2O3	17		WT%	ICPAES
FE2O3	2.5		WT%	ICPAES
MGO	1.1		WT%	ICPAES
CAO	3.7		WT%	ICPAES
NA2O	5.78		WT%	ICPAES
K2O	1.05		WT%	ICPAES
TIO2	0.43		WT%	ICPAES
P2O5	0.16		WT%	ICPAES
MNO	0.02		WT%	ICPAES
LOI	1.42		WT%	ICPAES
BA	216		PPM	ICPAES
LA	10.2		PPM	ICPAES
CE	19.5		PPM	ICPAES
ND	11.6		PPM	ICPAES
SM	2.3		PPM	ICPAES
EU	0.71		PPM	ICPAES
YB	0.45		PPM	ICPAES
TH	1.9		PPM	ICPAES
RB	10.7		PPM	ICPAES
SR	740		PPM	ICPAES
Y	6.3		PPM	ICPAES
NB	5.1		PPM	ICPAES

References

Aguillon-Robles, A; Calmus, T; Benoit, M; Bellon, H; Maury, RC; Cotton, J; Bourgois, J; Michaud, F (2001) Late Miocene adakites and Nb-enriched basalts from Vizcaino Peninsula, Mexico: Indicators of East Pacific Rise subduction below southern Baja California?. Geology [Geology]. Vol. 29, no. 6, pp. 531-534. Jun 2001.