Sample BC-77

NavDat sample number 93223 · BASALTIC-ANDESITE

Sample

Sample ID	BC-77
Rock name	BASALTIC-ANDESITE
Rock type	VOLCANIC
Composition	INTERMEDIATE
Material	IGNEOUS
Collected by	Church and Barakso
Comment	Vesicular lava flow with large plagioclase phenocrysts

Age (Ma)	Error	Min	Max	Geologic age	Dated by
52		46.8	57.2

Item	Value	Unit	Method
SIO2	55.28	WT%	XRF
TIO2	1.18	WT%	XRF
AL2O3	16.43	WT%	XRF
FE2O3T	8.43	WT%	XRF
MNO	0.19	WT%	XRF
MGO	1.63	WT%	XRF
CAO	5.74	WT%	XRF
NA2O	3.93	WT%	XRF
K2O	3.22	WT%	XRF
P2O5	0.55	WT%	XRF
LOI	2.8	WT%	XRF
CR	71	PPM	XRF
NI	64	PPM	XRF
CO	28	PPM	XRF
V	146	PPM	XRF
ZN	108	PPM	XRF
RB	86	PPM	XRF
BA	1699	PPM	XRF
SR	1129	PPM	XRF
GA	20	PPM	XRF
TA	1.03	PPM	ICPMS
NB	22.1	PPM	ICPMS
HF	6.36	PPM	ICPMS
ZR	289	PPM	ICPMS
Y	25	PPM	ICPMS
TH	12.76	PPM	ICPMS
LA	50.97	PPM	ICPMS
CE	105.95	PPM	ICPMS
PR	12.91	PPM	ICPMS
ND	50.38	PPM	ICPMS
SM	9.04	PPM	ICPMS
EU	2.14	PPM	ICPMS
GD	6.81	PPM	ICPMS
TB	0.89	PPM	ICPMS
DY	4.9	PPM	ICPMS
HO	0.96	PPM	ICPMS
ER	2.68	PPM	ICPMS
TM	0.38	PPM	ICPMS
YB	2.55	PPM	ICPMS
LU	0.38	PPM	ICPMS
ND143_ND144	0.512851		ICPMS
SR87_SR86	0.705017		ICPMS