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AF - CAM / Bangou / F57

Sample

Rock type
Rhyolite
Sampled at
1970-01-01
Sampled by
Bibliography
Country
Cameroun
Region
Bangou
Zone
Bafang
Longitude
10.341382 DD     10° 20' 0''
Latitude
5.140732 DD     5° 8' 0''
Altitude
1708 m
Body of water
Comments

Whole rock dating analyses

Analysis 1

Reference
Method
K-Ar
Technique
Age
43.1 Ma
Age incertitude
1 Ma
Precision
0
Sigma
±0
K2O
4.5 %
Fused mass
g
40ArR/40ArT
96.5 %
40ArR
62.04 10-7cm3.g-1
36Ar
exp 10-9cm3
Comments

Mineral dating analyses

No data available

Major elements analyses

No data available

Trace elements analyses

Analysis 1

Precision
0
Rb
137
Ba
40.2
Th
18.4
Nb
99.1
La
102.6
Ce
207.5
Sr
2.42
Nd
92.76
Sm
18.46
Zr
824
Eu
1.65
Gd
15.17
Dy
14.03
Y
71
Er
6.8
Yb
6.42
Sc
0
V
0.01
Cr
8.26
Co
0.21
Ni
11.5
Cu
4
Comments
ppm: Be=3.99; Zn=144; Ga=3.33; As=0.61; Mo=1.27; Cd=0.3; Sb=0.27; Cs=0.35; Pr=23.32; Tb=2.39; Ho=2.93; Tm=1; Lu=0.99; Hf=22.2; Ta=7.86; W=0.68; Pb=15.8; Bi=0.06; U=1.86,

Microprobe analyses

No data available

Isotopic analyses

No data available

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