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AF-MA / AZ 21

Sample

Rock type
Néphélinite
Sampled at
1992-05-15
Sampled by
El Azzouzi
Bibliography
Bull. Soc. géol. Fr., 2010, 181, 3:243-257. Petrol
Country
Maroc
Region
Moyen Atlas
Zone
Azrou
Longitude
5.116667 DD     5° 7' 0''
Latitude
33.35 DD     33° 21' 0''
Altitude
1910 m
Body of water
Comments

Whole rock K-Ar dating

Analysis 1

Reference
B 4057-5
Method
K-Ar
Technique
Conventionnelle roch
Age
0.67 Ma
Age incertitude
90 Ka
Precision
2
Sigma
±1
K2O
1.62 %
Fused mass
1.0087 g
40ArR/40ArT
18.9 %
40ArR
0.37 10-7cm3.g-1
36Ar
0.89 exp 10-9cm3
Comments

Mineral K-Ar dating

No data available

Major elements analysis

No data available

Trace elements analysis

No data available

Microprobe analyses

No data available

Isotopic analysis

No data available

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