Sample 8

NavDat sample number 18236 · PERIDOTITE

Sample

Sample ID	8
Rock name	PERIDOTITE
Rock type	PLUTONIC
Composition	ULTRAMAFIC
Material	IGNEOUS
Comment	large euhedral to anhedral forsteritic olivine, sometimes accompanied by large phlogopite phenocrysts; matrix of microphenocrysts of forsteritic olivine, monticellite, nepheline, rare sodalite, and smaller perovskite, Ti-magnetite, and apatite; interstitual, tabular, or poikilitic phlogopite, serpentine, and late-crystallizing primary or secondary calcite; secondary analcite, natrolite, pectolite, apophyllite and rare hydrated Ca-silicates

Age (Ma)	Error	Min	Max	Geologic age	Dated by
48		46	51

Item	Value	Unit	Method
SIO2	38	WT%	SP-PH
TIO2	1.8	WT%	SP-PH
AL2O3	7	WT%	SP-PH
FE2O3	3.7	WT%	SP-PH
FEO	6.5	WT%	SP-PH
MNO	0.21	WT%	SP-PH
MGO	21.9	WT%	SP-PH
CAO	13	WT%	SP-PH
NA2O	1.8	WT%	SP-PH
K2O	2.9	WT%	SP-PH
P2O5	0.65	WT%	SP-PH
H2O_PLUS	1.6	WT%	SP-PH
H2O_MINUS	0.65	WT%	SP-PH
TOTAL	100.1	WT%	SP-PH
NI	800	PPM	NAA
CR	1140	PPM	NAA
CO	72.9	PPM	NAA
ZN	105	PPM	NAA
SC	20.4	PPM	NAA
CS	1.7	PPM	NAA
BA	2920	PPM	NAA
RB	106	PPM	NAA
SR	1520	PPM	NAA
HF	2.6	PPM	NAA
NB	163	PPM	NAA
TA	9.4	PPM	NAA
TH	17.3	PPM	NAA
LA	122	PPM	NAA
CE	209	PPM	NAA
ND	73	PPM	NAA
SM	10.9	PPM	NAA
EU	2.59	PPM	NAA
GD	7.3	PPM	NAA
TB	0.69	PPM	NAA
YB	1.2	PPM	NAA
LU	0.16	PPM	NAA
CL	0.03	WT%	NAA
F	0.16	WT%	NAA