Basement
Unit |
Rock
type |
Thickness
(m) |
Phenocrysts |
Rock
(%) |
Groundmass |
Core,
section,
interval (cm) |
|
|
|
|
|
|
183-1138A- |
1 |
Aphyric
trachyte |
19.50 |
PL |
<1 |
PL,
CPX, GL, OPQ |
74R-1,
27-29; 75R-1, 5-6 |
2 |
Bedded
pumice lithic breccia |
24.29 |
|
|
|
|
3 |
Moderately
plagioclase-phyric basalt |
5.98 |
PL |
10 |
PL,
CPX, GL, OPQ |
80R-1,
52-56 |
4 |
Moderately
plagioclase-phyric basalt |
2.39 |
PL |
3 |
PL,
CPX, GL, OPQ |
80R-2,
101-103; 80R-3, 18-22 |
5 |
Sparsely
plagioclase-phyric basalt |
6.28 |
PL |
3 |
PL,
CPX, GL, OPQ, OL |
80R-5,
17-20 |
6 |
Aphyric
basalt |
2.84 |
|
|
PL,
CPX, GL, OL, OPQ |
81R-2,
26-27; 81R-2, 129-132 |
7 |
Sparsely
plagioclase-phyric basalt |
6.80 |
PL |
4 |
PL,
CPX, GL, OL, OPQ |
81R-5,
2-5 |
8 |
Sparsely
plagioclase-phyric basalt |
2.20 |
PL |
1 |
PL,
CPX, GL, OL, OPQ |
82R-1,
126-128 |
9 |
Sparsely
plagioclase-phyric basalt |
7.42 |
PL,
CPX |
2 |
PL,
CPX, GL, OPQ, OL |
82R-5,
69-71 |
10 |
Aphyric
basalt |
5.44 |
PL |
1 |
PL,
CPX, GL, OL, OPQ |
83R-4,
34-37 |
11 |
Aphyric
basalt |
2.41 |
PL |
<1 |
PL,
CPX, GL, OL, OPQ |
83R-6,
22-23 |
12 |
Aphyric
basalt |
3.05 |
PL |
<1 |
PL,
CPX, GL, OPQ |
84R-1,
7-8; 84R-1, 30-34 |
13 |
Sparsely
plagioclase-phyric basalt |
8.38 |
PL |
1 |
PL,
CPX, GL, OPQ, OL |
84R-5,
13-15; 84R-5, 100-101 |
14 |
Aphyric
basalt |
3.17 |
|
|
PL,
CPX, GL, OL, OPQ |
85R-1,
107-110 |
15 |
Aphyric
basalt |
6.43 |
PL |
<1 |
PL,
CPX, GL, OPQ, OL |
85R-2,
123-124 |
16 |
Aphyric
basalt |
0.73 |
|
|
PL,
CPX, GL, OPQ, OL |
86R-1,
44-46 |
17 |
Aphyric
basalt |
3.03 |
PL |
<1 |
PL,
CPX, GL, OPQ |
86R-2,
115-118; 86R-3, 32-34 |
18 |
Aphyric
basalt |
5.84 |
|
|
PL,
CPX, GL, OPQ |
86R-3,
148-149 |
19 |
Sparsely
plagioclase-phyric basalt |
9.70 |
PL,
CPX |
3 |
PL,
CPX, GL, OL, OPQ |
87R-2,
110-113; 87R-3, 10-13 |
20 |
Aphyric
basalt |
1.36 |
|
|
PL,
CPX, GL, OPQ |
88R-1,
87-89 |
21 |
Aphyric
basalt |
9.64 |
PL |
<1 |
PL,
CPX, GL, OPQ |
88R-2,
126-129 |
22 |
Aphyric
basalt |
8.30 |
PL |
<1 |
PL,
CPX, GL, OPQ |
89R-2,
119-122 |