Geo3dat
Geochronology, Geology, Geochemistry and Petrology
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KAR8
Sample
Rock type
Andésite
Sampled at
1995-01-01
Sampled by
Bibliography
Country
Region
Zone
Longitude
DD 0° 0' 0''
Latitude
DD 0° 0' 0''
Altitude
m
Body of water
Comments
Whole rock K-Ar dating
Analysis 1
Reference
B 880
Method
K-Ar
Technique
Age
3.96 Ma
Age incertitude
0.2 Ma
Precision
0
Sigma
±0
K2O
1.52 %
Fused mass
g
40ArR/40ArT
19 %
40ArR
1.94 10-7cm3.g-1
36Ar
exp 10-9cm3
Comments
Mineral K-Ar dating
No data available
Major elements analysis
Analysis 1
Precision
2
SiO2
53.7
TiO2
0
Al2O3
0
Fe2O3
0
MnO
0
MgO
0
CaO
0
Na2O
0
K2O
1.52
P2OR
0
Total
Loss on ignition
0
Comments
Trace elements analysis
No data available
Microprobe analyses
No data available
Isotopic analysis
No data available
Map
Documents
No data available
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