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Geochronology, Geology, Geochemistry and Petrology
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PAC PO SO BO 76
Sample
Rock type
Basalte
Sampled at
Sampled by
C.DIRAISON
Bibliography
Country
Polynésie française
Region
Bora-Bora
Zone
Bora-Bora
Longitude
151.7675 DD 151° 46' 0''
Latitude
16.512778 DD 16° 30' 1''
Altitude
24 m
Body of water
Océan Pacifique
Comments
Whole rock K-Ar dating
Analysis 1
Reference
B1551-6
Method
K-Ar
Technique
Age
3.77 Ma
Age incertitude
0.19 Ma
Precision
0
Sigma
±0
K2O
1.24 %
Fused mass
1.0033 g
40ArR/40ArT
22.7 %
40ArR
1.51 10-7cm3.g-1
36Ar
0 exp 10-9cm3
Comments
Mineral K-Ar dating
No data available
Major elements analysis
Analysis 1
Precision
SiO2
46.5
TiO2
2.95
Al2O3
13.7
Fe2O3
12.91
MnO
0.16
MgO
5.85
CaO
10.8
Na2O
2.6
K2O
1.26
P2OR
0.6
Total
99.27
Loss on ignition
Comments
Trace elements analysis
Analysis 1
Precision
Rb
32
Ba
245
Th
Nb
La
Ce
Sr
522
Nd
Sm
Zr
Eu
Gd
Dy
Y
Er
Yb
Sc
V
340
Cr
100
Co
40
Ni
90
Cu
Comments
Microprobe analyses
No data available
Isotopic analysis
No data available
Map
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