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ASI - PH Leyte / LEY 90-37 A

Sample

Rock type
Andésite
Sampled at
Sampled by
Bibliography
Magmatic response to abrupt changes in geodynamic settings : Pli
Country
Philippines
Region
Leyte
Zone
Biliran Island
Longitude
124.5 DD     124° 30' 0''
Latitude
11 DD     11° 0' 0''
Altitude
m
Body of water
Océan Pacifique
Comments

Whole rock dating analyses

Analysis 1

Reference
B3011-8
Method
K-Ar
Technique
Age
1.37 Ma
Age incertitude
0.29 Ma
Precision
Sigma
±1
K2O
1.67 %
Fused mass
g
40ArR/40ArT
10.6 %
40ArR
0.74 10-7cm3.g-1
36Ar
exp 10-9cm3
Comments

Mineral dating analyses

No data available

Major elements analyses

Analysis 1

Precision
SiO2
57.5
TiO2
0.59
Al2O3
18.16
Fe2O3
7.6
MnO
0.17
MgO
2.75
CaO
7.01
Na2O
3.39
K2O
1.69
P2OR
0.27
Total
99.85
Loss on ignition
0.72
Comments

Trace elements analyses

Analysis 1

Precision
Rb
33
Ba
537
Th
Nb
2.2
La
11.4
Ce
24
Sr
585
Nd
15
Sm
Zr
99
Eu
1
Gd
Dy
3.3
Y
22
Er
2.2
Yb
2.1
Sc
14.5
V
175
Cr
5
Co
18
Ni
4
Cu
Comments
Sr/Y=27 La/Yb=5.4 La/Nb=5.18

Microprobe analyses

No data available

Isotopic analyses

No data available

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