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AMS-CHI / LCBA-PG134

Sample

Rock type
Basalte
Sampled at
2002-01-01
Sampled by
Bibliography
Country
Chili
Region
Conhayque : Lac General Buenos-Aires
Zone
zone de Meseta
Longitude
-71.51 DD     -72° 29' 0''
Latitude
-47.16 DD     -48° 50' 0''
Altitude
0 m
Body of water
Comments

Whole rock K-Ar dating

Analysis 1

Reference
6296-7
Method
K-Ar
Technique
null
Age
3.89 Ma
Age incertitude
0.14 Ma
Precision
0
Sigma
±0
K2O
1.76 %
Fused mass
g
40ArR/40ArT
27.9 %
40ArR
2.21 10-7cm3.g-1
36Ar
exp 10-9cm3
Comments

Mineral K-Ar dating

No data available

Major elements analysis

Analysis 1

Precision
2
SiO2
48.5
TiO2
2.31
Al2O3
16.75
Fe2O3
10.75
MnO
0.16
MgO
7.01
CaO
7.72
Na2O
4.16
K2O
1.85
P2OR
0.62
Total
Loss on ignition
0.06
Comments

Trace elements analysis

Analysis 1

Precision
2
Rb
33
Ba
442
Th
3.7
Nb
38
La
36
Ce
73
Sr
761
Nd
34
Sm
7.3
Zr
252
Eu
2.25
Gd
6.7
Dy
5.6
Y
29
Er
2.7
Yb
2.46
Sc
19
V
165
Cr
175
Co
37
Ni
114
Cu
0
Comments

Microprobe analyses

No data available

Isotopic analysis

No data available

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