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ASI - PH MNO / P 90-19

Sample

Rock type
Basalte tholeiitique
Sampled at
Sampled by
Bibliography
Magmatic response to abrupt changes in geodynamic settings : Pli
Country
Philippines
Region
Mindanao / Zamboanga Peninsula
Zone
Pagadian City
Longitude
123.44 DD     123° 26' 0''
Latitude
7.7 DD     7° 42' 0''
Altitude
0 m
Body of water
Océan Pacifique
Comments

Whole rock K-Ar dating

Analysis 1

Reference
B3113-6
Method
K-Ar
Technique
Age
2.58 Ma
Age incertitude
0.12 Ma
Precision
Sigma
±1
K2O
0.74 %
Fused mass
g
40ArR/40ArT
17.97 %
40ArR
1.58 10-7cm3.g-1
36Ar
0.77 exp 10-9cm3
Comments

Mineral K-Ar dating

No data available

Major elements analysis

Analysis 1

Precision
0
SiO2
52.85
TiO2
1.44
Al2O3
16.32
Fe2O3
9.78
MnO
0.13
MgO
5.66
CaO
7.96
Na2O
3.77
K2O
0.74
P2OR
0.26
Total
100.13
Loss on ignition
1.22
Comments

Trace elements analysis

Analysis 1

Precision
Rb
16
Ba
175
Th
Nb
9.5
La
11.25
Ce
23
Sr
480
Nd
14
Sm
Zr
98
Eu
1.25
Gd
Dy
3.8
Y
22
Er
1.9
Yb
1.88
Sc
20
V
180
Cr
158
Co
33
Ni
100
Cu
Comments
Sr/Y=22 La/Yb=6.0 BaNb=18 Ba/La=16

Microprobe analyses

No data available

Isotopic analysis

No data available

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