Table
T10. Example of alteration log used during Leg 183, Kerguelen
Plateau.
Note: See Table T9,
for abbreviations.
Curatorial
data
Groundmass
Breccia
Basement
unit
Core
Section
Piece
Length
(cm)
Subpiece
Depth
(mbsf)
Alteration
(%)
Color
Vesicles
(%)Filled
(%)Dark
green clay
Quartz
Black
clay
Blue-green
clay
White
clay
Am
silica
Calcite
Siderite
Volcanic
Tectonic
Matrix
(%)Clast
(%)
14
67
1
1
17
633.10
H/C
Bk
to
0
X
65
35
2
13
633.27
brown
3
33
633.40
14
67
2
1
139
633.73
H/C
Bk
to
0
X
65
35
brown
14
67
3
1
150
635.12
H/C
Bk
to
0
X
30
70
brown
14
67
4
1
90
636.62
H
Pk/gray
0
X
15
85
M
Green
0
X
2
46
637.52
S/M
Lt
gray
0.1
100
100
14
67
5
1
24
637.98
S/M
Gray
0.1
100
10
90
2
2
638.22
3
27
638.24
4
13
638.51
5
7
638.64
6
13
638.71
7
7
638.84
8
4
638.91
9
5
638.95
10
8
639.00
11
7
639.08
12
11
639.15
13
2
639.26
14
68
1
1
101
642.60
C
Green
0
X
X
50
50
15
2
24
643.61
C
Red
0
X
X
80
20
3
14
643.85
0
15
68
2
1
150
643.99
M/H
Green
0
X
X
20
80
15
68
3
1
126
645.49
M/H
Gray
to green
0
X
C
Red
to black
0
X
M/H
Green
3
80
70
30
X
X
4
16
15
68
4
145
646.75
M
Lt
green
1
100
95
5
16
C
Red
to black
X
70
30
16
68
5
1
17
646.75
H/C
Dk
red to black
0
X
60
40