Sample 7YC-288A

NavDat sample number 61950 · PYROCLASTIC-FLOW

Sample

Sample ID	7YC-288A
Rock name	PYROCLASTIC-FLOW
Rock type	VOLCANIC
Composition	FELSIC
Material	IGNEOUS
Comment	densely fused FALLOUT tuff just below base of Member A tuff; black spheroidal obsidian cores in slightly perlitic matrix; sparse phenocrysts of quartz, sanidine, oligoclase, and accessory minerals in enclosed in welded glass shards

Latitude	44.9583
Longitude	-110.656
Location	bluff on south rim of Mount Everts, about 1.4 km NW of Undine Falls
State / province	Wyoming
Volcanic field	Huckleberry Ridge Tuff, Member A

Age (Ma)	Error	Min	Max	Geologic age	Dated by
2.053		2.047	2.059

Item	Value	Unit	Method
SIO2	76.47	WT%	UNKNOWN
TIO2	0.1	WT%	UNKNOWN
AL2O3	12.52	WT%	UNKNOWN
MNO	0.04	WT%	UNKNOWN
MGO	0	WT%	UNKNOWN
CAO	0.52	WT%	UNKNOWN
NA2O	3.73	WT%	UNKNOWN
K2O	5.12	WT%	UNKNOWN
P2O5	0	WT%	UNKNOWN
TOTAL	99.99	WT%	UNKNOWN
FEOT	1.49	WT%	UNKNOWN
CL	490	PPM	UNKNOWN
F	1300	PPM	UNKNOWN
BE	5	PPM	UNKNOWN
ZR	320	PPM	UNKNOWN
HF	8.3	PPM	UNKNOWN
NB	56	PPM	UNKNOWN
TA	4.9	PPM	UNKNOWN
P	140	PPM	UNKNOWN
TI	1100	PPM	UNKNOWN
MN	290	PPM	UNKNOWN
ZN	83	PPM	UNKNOWN
SC	1.6	PPM	UNKNOWN
Y	64	PPM	UNKNOWN
LA	94	PPM	UNKNOWN
CE	180	PPM	UNKNOWN
ND	71	PPM	UNKNOWN
SM	16	PPM	UNKNOWN
EU	0.61	PPM	UNKNOWN
GD	13	PPM	UNKNOWN
TB	2.5	PPM	UNKNOWN
HO	2.7	PPM	UNKNOWN
TM	1.2	PPM	UNKNOWN
YB	8	PPM	UNKNOWN
LU	1.1	PPM	UNKNOWN
LI	59	PPM	UNKNOWN
TH	32	PPM	UNKNOWN
U	8.6	PPM	UNKNOWN
SR	-5	PPM	UNKNOWN
BA	210	PPM	UNKNOWN
RB	220	PPM	UNKNOWN
CS	4	PPM	UNKNOWN