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ASI - PH MNO / P 90-35

Sample

Rock type
Basalte calco-alcalin
Sampled at
Sampled by
Bibliography
Magmatic response to abrupt changes in geodynamic settings : Pli
Country
Philippines
Region
Mindanao / Zamboanga Peninsula
Zone
Mt. Kaladis
Longitude
122.9 DD     122° 54' 0''
Latitude
7.8 DD     7° 47' 1''
Altitude
0 m
Body of water
Océan Pacifique
Comments

Whole rock K-Ar dating

Analysis 1

Reference
B2975-5
Method
K-Ar
Technique
Age
1.85 Ma
Age incertitude
0.45 Ma
Precision
Sigma
±1
K2O
0.64 %
Fused mass
0.8322 g
40ArR/40ArT
9.34 %
40ArR
1.63 10-7cm3.g-1
36Ar
1.04 exp 10-9cm3
Comments

Analysis 2

Reference
B3024-4
Method
K-Ar
Technique
Age
1.08 Ma
Age incertitude
0.19 Ma
Precision
0
Sigma
±0
K2O
0.64 %
Fused mass
0 g
40ArR/40ArT
4.89 %
40ArR
1.63 10-7cm3.g-1
36Ar
1.18 exp 10-9cm3
Comments

Mineral K-Ar dating

No data available

Major elements analysis

Analysis 1

Precision
0
SiO2
49.5
TiO2
1.62
Al2O3
15.04
Fe2O3
11.43
MnO
0.38
MgO
6.68
CaO
9.2
Na2O
2.97
K2O
0.48
P2OR
0.26
Total
100.14
Loss on ignition
2.58
Comments

Trace elements analysis

Analysis 1

Precision
Rb
8
Ba
110
Th
Nb
12
La
10
Ce
21
Sr
351
Nd
15
Sm
Zr
102
Eu
1.35
Gd
Dy
4.2
Y
28
Er
2.4
Yb
1.7
Sc
23
V
188
Cr
250
Co
58
Ni
190
Cu
Comments
Sr/Y=13 La/Yb=5.9 BaNb=9 Ba/La=11

Microprobe analyses

No data available

Isotopic analysis

No data available

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