Sample 79-AR-53

NavDat sample number 44443 · TONALITE

Sample

Sample ID	79-AR-53
Rock name	TONALITE
Rock type	PLUTONIC
Composition	INTERMEDIATE
Material	IGNEOUS
Comment	gneissic hb tonalite

Location

Latitude	27.4345
Longitude	-114.425
State / province	Baja California Sur

Age

Age (Ma)	Error	Min	Max	Geologic age	Dated by
161		153	169

Analyses

WHOLE ROCK

Item	Value	Std. dev.	Unit	Method
SIO2	59.55		WT%	XRF
TIO2	0.28		WT%	XRF
AL2O3	15.35		WT%	XRF
FE2O3	2.87		WT%	XRF
FEO	4.44		WT%	XRF
FE2O3	7.8		WT%	XRF
MNO	0.14		WT%	XRF
MGO	3.59		WT%	XRF
CAO	7.98		WT%	XRF
NA2O	1.52		WT%	XRF
K2O	1.87		WT%	XRF
P2O5	0.03		WT%	XRF
LOI	2		WT%	XRF
BE	668		PPM	XRF
NB	0		PPM	XRF
RB	36		PPM	XRF
SR	204		PPM	XRF
ZR	15		PPM	XRF
Y	13		PPM	XRF

References

Kimbrough, David L; Moore, Thomas E (2003) Ophiolite and volcanic arc assemblages on the Vizcaino Peninsula and Cedros Island, Baja California Sur, Mexico; Mesozoic forearc lithosphere of the Cordilleran magmatic arc. Special Paper - Geological Society of America. 374; Pages 43-71. 2003.