Geo3dat
Geochronology, Geology, Geochemistry and Petrology
Geo3dat : English version
ASI - PH MNO / P 90-61
Sample
Rock type
Andésite basaltique
Sampled at
Sampled by
Bibliography
Magmatic response to abrupt changes in geodynamic settings : Pli
Country
Philippines
Region
Mindanao / Zamboanga Peninsula
Zone
Ipil town
Longitude
122.5 DD 122° 30' 0''
Latitude
7.6 DD 7° 35' 1''
Altitude
0 m
Body of water
Océan Pacifique
Comments
Whole rock K-Ar dating
Analysis 1
Reference
B2982-4
Method
K-Ar
Technique
Age
0.13 Ma
Age incertitude
0.2 Ma
Precision
Sigma
±1
K2O
2.38 %
Fused mass
0.8312 g
40ArR/40ArT
1.32 %
40ArR
7.73 10-7cm3.g-1
36Ar
2.14 exp 10-9cm3
Comments
Analysis 2
Reference
B3027-7
Method
K-Ar
Technique
Age
0.41 Ma
Age incertitude
50 Ka
Precision
Sigma
±1
K2O
2.38 %
Fused mass
g
40ArR/40ArT
6.86 %
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
55
TiO2
0.9
Al2O3
18
Fe2O3
7.72
MnO
0.15
MgO
4.06
CaO
8.24
Na2O
3.11
K2O
2.34
P2OR
0.56
Total
100.48
Loss on ignition
0.4
Comments
Trace elements analysis
Analysis 1
Precision
Rb
68
Ba
960
Th
Nb
7.7
La
37.5
Ce
74
Sr
950
Nd
35
Sm
Zr
185
Eu
1.9
Gd
Dy
4.9
Y
28
Er
3.3
Yb
2.32
Sc
24
V
235
Cr
26
Co
25
Ni
13
Cu
Comments
Sr/Y=34
La/Yb=16.2
BaNb=125
Ba/La=26
Microprobe analyses
No data available
Isotopic analysis
No data available
Map
Documents
No data available
Geo3dat © 2011-2012. All rights reserved