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Table T6. Original microphenocryst abundances in Unit II and V basalts, Site U1346. (See table notes.)
Thin section number |
Core, section, interval (cm) |
Original modal abundance
|
Stratigraphic
unit |
Plagioclase
|
|
Olivine
|
|
Pyroxene
|
|
Spinel
|
N
|
R |
P |
A |
N |
R |
P |
A |
N |
R |
P |
A |
N |
Y |
|
324-U1346A- |
1
|
4R-1, 0–4 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
II |
39
|
4R-1, 24–31 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
3
|
4R-1, 48–51 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
40
|
4R-1, 70–76 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
5
|
4R-1, 114–121 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
6
|
4R-2, 23–26 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
13
|
6R-1, 53–56 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
IV |
14
|
6R-1, 115–118 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
15
|
7R-1, 22–23 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
16
|
7R-1, 30–34 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
17
|
7R-1, 52–54 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
18
|
7R-1, 81–83 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
19
|
7R-1, 139–141 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
20
|
7R-2, 10–12 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
21
|
7R-2, 77–80 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
24
|
7R-3, 33–35 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
23
|
7R-3, 67–70 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
25
|
7R-4, 30–34 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
27
|
8R-1, 28–29 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
28
|
8R-1, 56–60 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
29
|
8R-1, 85–87 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
30
|
8R-2, 30–34 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
31
|
9R-1, 45–49 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
33
|
9R-2, 73–76 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
32
|
9R-2, 85–89 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
26
|
9R-2, 94–96 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
34
|
9R-2, 117–118 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
36
|
10R-1, 24–25 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
37
|
10R-2, 16–18 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
38
|
11R-1, 34–35 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
42
|
13R-1, 15–19 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
43
|
13R-1, 42–45 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
44
|
13R-1, 61–65 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
45
|
13R-1, 79–82 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
46
|
13R-1, 85–88 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
47
|
13R-1, 102–105 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
48
|
13R-2, 35–36 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
49
|
14R-1, 124–126 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
50
|
14R-2, 36–37 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
51
|
14R-2, 66–70 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
52
|
14R-2, 97–98 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
53
|
14R-2, 107–108 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
54
|
14R-3, 34–36 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
55
|
14R-3, 53–57 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
56
|
15R-1, 91–94 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
57
|
16R-1, 25–28 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
58
|
16R-2, 10–14 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
59
|
16R-2, 30–31 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
61
|
16R-2, 85–88 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Notes: Estimated from thin sections. N = not present (0%), R = rare (<1%), P = present (1%–5%), A = abundant (>5%), Y = observed.
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