Sample CON-75

NavDat sample number 122477 · DACITE

Sample

Sample ID	CON-75
Rock name	DACITE
Rock type	VOLCANIC
Composition	FELSIC
Material	IGNEOUS
Comment	Author gave only range of rock types. SiO2 wt % was used to determine rock type. Described as silicic tuff.

Age (Ma)	Error	Min	Max	Geologic age	Dated by
31.4		30.6	32.2

Item	Value	Unit	Method
SIO2	67	WT%	ICP
AL2O3	14.7	WT%	ICP
FE2O3	1.75	WT%	ICP
MNO	0.02	WT%	ICP
MGO	1.09	WT%	ICP
CAO	2.79	WT%	ICP
NA2O	3.78	WT%	ICP
K2O	2.2	WT%	ICP
TIO2	0.32	WT%	ICP
P2O5	0.08	WT%	ICP
TOTAL	99.87	WT%	ICP
SR	275	PPM	ICPMS
RB	131	PPM	ICPMS
BA	631	PPM	ICPMS
TH	5	PPM	ICPMS
NB	6	PPM	ICPMS
ZR	144	PPM	ICPMS
HF	4	PPM	ICPMS
Y	11	PPM	ICPMS
SC	5	PPM	ICP
CR	14	PPM	ICPMS
NI	4	PPM	ICPMS
CO	24	PPM	ICPMS
LA	16	PPM	ICPMS
CE	31	PPM	ICPMS
PR	3	PPM	ICPMS
ND	12	PPM	ICPMS
SM	2	PPM	ICPMS
EU	0.89	PPM	ICPMS
GD	2	PPM	ICPMS
TB	0.31	PPM	ICPMS
DY	2	PPM	ICPMS
HO	0.42	PPM	ICPMS
ER	1.09	PPM	ICPMS
TM	0.16	PPM	ICPMS
YB	1.17	PPM	ICPMS
LU	0.18	PPM	ICPMS