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AF - CAM / TG / I22

Sample

Rock type
Sampled at
2005-01-01
Sampled by
Itiga
Bibliography
Country
Cameroun
Region
Tchabal Gangdaba
Zone
Longitude
12.463065 DD     12° 27' 1''
Latitude
7.198043 DD     7° 11' 1''
Altitude
1123 m
Body of water
Comments

Whole rock dating analyses

Analysis 1

Reference
Method
K-Ar
Technique
Age
29.3 Ma
Age incertitude
0.7 Ma
Precision
0
Sigma
±0
K2O
0 %
Fused mass
g
40ArR/40ArT
0 %
40ArR
0 10-7cm3.g-1
36Ar
exp 10-9cm3
Comments

Mineral dating analyses

No data available

Major elements analyses

Analysis 1

Precision
2
SiO2
41.6
TiO2
3.28
Al2O3
12.29
Fe2O3
12.65
MnO
0.18
MgO
13.87
CaO
11.2
Na2O
2.59
K2O
0.73
P2OR
0.71
Total
Loss on ignition
1.16
Comments

Trace elements analyses

Analysis 1

Precision
2
Rb
26.6
Ba
409
Th
4.46
Nb
62
La
44.2
Ce
86.6
Sr
754
Nd
45.2
Sm
8.93
Zr
229
Eu
2.9
Gd
7.19
Dy
5.65
Y
25.8
Er
2.27
Yb
2.19
Sc
0
V
278
Cr
658
Co
61.9
Ni
414
Cu
68
Comments
ppm: Be=1.92; Cs=0.34; Ga=19.5; Ge=1.39; Hf=5.32; Ho=0.944; Lu=0.286; Mo=2.14; Pb=2.17; Pr=10.7; Ta=4.45; Tb=0.998; Tm=0.341; U=1.27; ,

Microprobe analyses

No data available

Isotopic analyses

No data available

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