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AMS-CHI / LCBA-PG138

Sample

Rock type
Basalte
Sampled at
2002-01-01
Sampled by
Bibliography
Country
Chili
Region
Conhayque : Lac General Buenos-Aires
Zone
zone de Chile Chicos
Longitude
-71.74 DD     -72° 15' 1''
Latitude
-46.71 DD     -47° 17' 0''
Altitude
0 m
Body of water
Comments

Whole rock K-Ar dating

Analysis 1

Reference
6340-5
Method
K-Ar
Technique
null
Age
4.46 Ma
Age incertitude
0.22 Ma
Precision
0
Sigma
±0
K2O
1.01 %
Fused mass
g
40ArR/40ArT
19.9 %
40ArR
1.38 10-7cm3.g-1
36Ar
exp 10-9cm3
Comments

Mineral K-Ar dating

No data available

Major elements analysis

Analysis 1

Precision
2
SiO2
48.1
TiO2
1.4
Al2O3
17.25
Fe2O3
9.3
MnO
0.16
MgO
7.92
CaO
9.6
Na2O
3.74
K2O
1.01
P2OR
0.6
Total
Loss on ignition
0.25
Comments

Trace elements analysis

Analysis 1

Precision
2
Rb
19.5
Ba
430
Th
3.25
Nb
14
La
30.5
Ce
66
Sr
1100
Nd
37
Sm
7
Zr
158
Eu
2.05
Gd
5.6
Dy
4.25
Y
22.5
Er
2
Yb
1.95
Sc
21
V
218
Cr
213
Co
33
Ni
131
Cu
0
Comments

Microprobe analyses

No data available

Isotopic analysis

No data available

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