35°22'52.732" N, 137°13'37.516" E, 220.074 masl
Coordinate X: 5488.826, Y: -68629.358, Z: 220.074
10
15 20
Total FeO
Toki lignite-bearing F.
311.2
10"
8"
12.0
254.0
FZ
Fine-grained biotite granite
4"
123.0
20 30
Rock Mechanics
Hydraulic
Conductivity
(m/s)
Hydraulic
Head
(magl)
10-11 10-10 10-9 10-8 10-7 10-6
-20-10 0
WCF
Groundwater
Chemistry
Uniaxial
Compressive
Strength
(MPa)
0 100 200 300
Compressional
Wave Velocity
(km/s)
2 3
4
5 6
Elevation (masl)
5
Akeyo F.
Hydrogeology
Temperature (°C)
Fracture Density
(fracture/m)
11-13 Nov.1997
0.5 11 1.0 12 1.5 13 2.0
7 74 8 76 9 78 10 0
Borehole Diameter (mm)
and Casing (inch)
Weathering
Alteration
Chemical
Composition
(wt%)
MgO+CaO
SiO2
Na2O+K2O
Al2O3
88.8
100 100.0
Mizunami G.
38.8
Lithostratigraphical
Descriptions
Tertiary S.R.
Depth (mbgl)
Lithostratigraphical
Columns
Geological Overview
Geophysical Logging, BTV
Appendix 1 (1) Overview of the MIU-1 Borehole Investigations
200
WCF
WCF
103.5
112.9
100
Medium-grained biotite granite
170.0
200
Coarse-grained biotite granite
FZ
WCF
0
234.0
WCF
FZ
300
Medium-grained biotite granite
FZ
-100
WCF
375.0
FZ
WCF
400
600 601.4
619.5
630.0
700
98.4
Aplite dykes
Medium-grained biotite granite
WCF
-300
8-23 Jul.1998
Coarse-grained biotite granite
HQ-WL (double-barrel) drilling (12.0 - 1011.8m)
500
Crystalline Basement (Toki Granite)
-200
-400
689.2
-500
Fine-grained felsic granite
Medium-grained felsic granite
800 802.0
830.0
900
Fine-grained felsic granite
Medium-grained felsic granite
938.4
949.6
1000 1011.8
Aplite dykes
FZ
Drilling operations: 5 Nov.1997 - 30 Jun.1998
Borehole deviation at final depth: 21.3m to S11.3°W
Actual vertical depth: 1011.5mbgl
755.0
-600
WCF
WCF
WCF
WCF
WCF
WCF
-700
Appendix 1 (2) Overview of the MIU-1 Borehole Investigations
Physical Logging
Lithostratigraphical
Columns
Weathering
Alteration
Lithostrati - graphical
Descriptions Fracture
Density
100
Mizunami G.
Apparent
resistivity
(Ωm)
SP (mV)
(fracture/m)
0 5 1015 0
Tertiary S.R.
Depth (mbgl)
Geological Overview
150
300 0
Micro logging
(Ωm)
4000 8000 0
400 0
Akeyo F.
Toki lignite
-bearing F.
Fine-grained
biotite granite
Medium-grained
biotite granite
200
Coarse-grained
biotite granite
300
Medium-grained
biotite granite
25
cm
100
cm
500
600
700
Crystalline Basement (Toki Granite)
1 inch
400
2 inch
Coarse-grained
biotite granite
Aplite dykes
Medium-grained
biotite granite
Fine-grained
felsic granite
Medium-grained
felsic granite
800
900
Fine-grained
felsic granite
Medium-grained
felsic granite
Aplite dykes
1000
γ-ray (API)
1000 0
Neutron
porosity (%)
Density (g/cm3)
60 0
2.0
Temperature (℃)
4.0 0
20
φ(mm)
φ(Y)
0
400
φ(
X
)
40 400
0