Sample 110

NavDat sample number 11382 · PHONOLITE

Sample

Sample ID	110
Rock name	PHONOLITE
Rock type	VOLCANIC
Composition	INTERMEDIATE
Material	IGNEOUS
Comment	porphyritic; trachytic holocrystalline matrix of sanidine needles, pyroxene, and feldspathoid; phenocrysts of feldspathoid, sanidine, which show strong flow foliation, and minor pyroxene; also microphenocrysts 1 mm length of sanidine

Age (Ma)	Error	Min	Max	Geologic age	Dated by
43.6		41.4	46.6

Item	Value	Unit	Method
SIO2	55.95	WT%	XRF
AL2O3	21.18	WT%	XRF
FE2O3	2.03	WT%	XRF
FEO	0.46	WT%	TIT
CAO	2.08	WT%	XRF
MGO	0.08	WT%	XRF
NA2O	8.46	WT%	XRF
K2O	4.96	WT%	XRF
TIO2	0.2	WT%	XRF
MNO	0.12	WT%	XRF
P2O5	0	WT%	XRF
H2O	4.66	WT%	PENFIELD
TOTAL	100.18	WT%	XRF
RB	178	PPM	XRF
SR	982	PPM	XRF
Y	32	PPM	XRF
ZR	444	PPM	XRF
LA	84	PPM	XRF
CU	8	PPM	AAS
CR	13	PPM	AAS
NI	34	PPM	AAS
ZN	127	PPM	AAS