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AMS-CHI / LCBA-PG142

Sample

Rock type
Basalte
Sampled at
2002-01-01
Sampled by
Bibliography
Country
Chili
Region
Conhayque : Lac General Buenos-Aires
Zone
zone de Los Antiguos
Longitude
-71.53 DD     -72° 28' 0''
Latitude
-46.59 DD     -47° 24' 1''
Altitude
0 m
Body of water
Comments

Whole rock K-Ar dating

Analysis 1

Reference
6371-2
Method
K-Ar
Technique
null
Age
39.64 Ma
Age incertitude
1.12 Ma
Precision
0
Sigma
±0
K2O
0.43 %
Fused mass
g
40ArR/40ArT
41 %
40ArR
5.56 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
1.76
Al2O3
16.55
Fe2O3
10.3
MnO
0.15
MgO
6.42
CaO
8.45
Na2O
3.97
K2O
1.6
P2OR
0.43
Total
Loss on ignition
1.41
Comments

Trace elements analysis

Analysis 1

Precision
2
Rb
16.2
Ba
120
Th
1.7
Nb
14.1
La
16
Ce
40.5
Sr
350
Nd
31.5
Sm
8.5
Zr
272
Eu
2.65
Gd
9.5
Dy
8.3
Y
44
Er
4
Yb
3.44
Sc
26
V
270
Cr
200
Co
42.5
Ni
118
Cu
0
Comments

Microprobe analyses

No data available

Isotopic analysis

No data available

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