Table T8. Ash layers, Site 1241.
Number
Core, section,
interval (cm)
Depth (mcd)
Core, section,
interval (cm)
Depth (mcd)
Core, section,
interval (cm)
Depth (mcd)
Glass color
Top
Bottom
Top
Bottom
Top
Bottom

202-1241A-

202-1241B-

202-1241C-


I 1H-2, 9-15 1.89 1.95 1H-2, 22-34 1.72 1.84 1H-2, 24-30 1.79 1.85 Clear >> brown
2 Core gap

1H-5, 65-79 6.66 6.80 ND

Clear >> brown
3 2H-6, 124-135 13.59 13.70 2H-4, 64-76 13.62 13.74 ND

Clear
4 3H-3, 87-90 19.03 19.06 Core gap

ND

Clear > brown
5 3H-4, 27-36 19.93 20.02 3H-1, 54-55 19.91 19.92 ND

Clear
6 Core gap

3H-6, 82-83 27.66 27.67 ND

Brown
7 4H-3, 120-125 31.05 31.10 4H-2, 44-52 30.82 30.90 ND

Pumice (lapilli size) patch
8 4H-4, 11-14 31.46 31.49 4H-2, 88-97 31.26 31.35 ND

Clear >> brown
9 5H-4, 123-133 42.88 42.98 5H-3, 35-40 42.88 42.93 ND

Pumice (lapilli size) layer
10 5H-5, 13-18 43.29 43.34 5H-3, 71-75 43.24 43.28 ND

Pumice (lapilli size) layer
11 5H-5, 97-117 44.13 44.33 5H-4, 6-21 44.10 44.25 2H-6, 32-48 44.09 44.25 Clear
12 5H-6, 137-148 46.05 46.16 5H-5, 35-42 45.89 45.96 2H-CC, 12-20 45.99 46.07 Clear
13 5H-7, 23-33 46.41 46.51 5H-5, 68-73 46.22 46.27 ND

Clear
14 Core gap

5H-6, 94-101 47.99 48.06 ND

Clear
15 6H-1, 1-6 48.08 48.13 5H-6, 111-114 48.16 48.19 ND

Clear >> brown
16 6H-1, 53-55 48.60 48.62 5H-7, 10-14 48.65 48.69 ND

Pumice (lapilli size) layer
17 6H-1, 71-79 48.78 48.86 5H-7, 30-39 48.85 48.94 ND

Clear >> brown
18 NF

6H-1, 7-9 49.55 49.57 ND

Andesite (3 cm)
19 6H-3, 45-47 51.53 51.55 6H-2, 57-60 51.56 51.59 ND

Clear
20 6H-3, 130-138 52.38 52.46 6H-2, 144-149 52.43 52.48 ND

Clear >> brown
21 8H-5/6, (5)147-(6)1 77.10 77.14 8H-5, 41-43 77.08 77.10 5H-2, 44-50 76.99 77.05 Clear
22 11H-1, 12-14 101.32 101.34 NF

ND

Clear
23 NF

NF

10H-1, 39-40 135.69 135.71 Clear
24 15H-5, 87-92 149.03 149.08 15H-1, 28-31 149.05 149.08 11H-1, 47-49 149.04 149.06 Clear
25 NF

NF

11H-2, 20-23 150.27 150.3 Clear >> brown
26 19H-4, 52-57 189.73 189.78 18H-6, 81-86 189.74 189.79 ND

Brown
27 19H-7, 20-28 193.94 194.02 19H-2, 36-44 193.89 193.97 ND

Clear
28 NF

20H-7, 100
211.41 ND

Pumice (1 cm)
29 22H-1, 15-21 217.34 217.40 21H-4, 25-33 217.16 217.24 ND

Brown > clear
30 23H-5, 70-80 235.54 235.64 23H-2, 97-103 235.52 235.58 ND

Brown > clear
31 NF

23H-5, 64
239.69 ND

Scoria (3 mm)
32 NF

24H-1, 138
245.12 ND

Scoria (3 mm)
33 25H-7, 58-65 260.90 260.97 25H-5, 52-57 260.89 260.94 ND

Clear >> brown
34 26H-2, 0-6 263.44 263.50 25H-7, 7-15 263.45 263.53 ND

Scoria (sand size)
35 26H-2/3, (2)146-(3)3 264.90 264.98 26H-1, 0-5 264.90 264.95 ND

Brown
36 Core gap

28X-4, 61-62 292.99 293.00 ND

?
37 30H-1, 45-46 304.69 304.70 29X-4, 20-22 304.44 304.46 ND

Brown
38 30H-2, 64-68 306.38 306.42 29X-5, 52-67 306.26 306.41 ND

Clear > brown
39 30H-6, 69-71 312.47 312.49 NF

ND

Clear >> brown
40 30H-6, 76-77 312.54 312.55 NF

ND

Clear > brown
41 31H-3, 41
318.11 NF

ND

Scoria (4 mm)
42 31H-3, 73-74 318.43 318.44 30X-5, 68-70 318.41 318.43 ND

Brown
43 31H-3, 82-83 318.52 318.53 NF

ND

Brown
44 31H-4, 34
319.55 NF

ND

Scoria (4 mm)
45 31H-4, 43-45 319.64 319.66 30X-6, 33-41 319.56 319.64 ND

Clear
46 31H-5, 29-32 321.01 321.04 30X-7, 24-26 320.77 320.79 ND

Clear
47 31H-5, 99
321.71 NF

ND

Scoria (7 mm)
48 32H-6, 123-125 335.97 335.99 Core gap

ND

Brown
49 32H-6, 135-136 336.09 336.10 Core gap

ND

Brown
50 32H-7, 53-54 336.77 336.78 32X-1, 45-54 336.74 336.83 ND

Brown
51 33H-2, 133-141 342.62 342.70 32X-5, 31-40 342.60 342.69 ND

Brown
52 34H-3, 128-130 354.81 354.83 ND

ND

Brown > clear
53 34H-6, 47-52 358.50 358.55 ND

ND

Clear >> brown
54 35X-6, 64-67 365.79 365.82 ND

ND

Clear >> brown
55 36X-3, 12-15 370.94 370.97 ND

ND

Brown
56 36X-3, 32-50 371.14 371.32 ND

ND

Brown > clear
57 36X-3, 84-88 371.66 371.70 ND

ND

?
58 36X-4, 35-37 372.67 372.69 ND

ND

?
59 38X-1, 44-45 390.06 390.07 ND

ND

Brown
60 38X-1, 54-55 390.16 390.17 ND

ND

?
61 38X-3, 25-27 392.67 392.69 ND

ND

Brown
62 39X-2, 105-107 402.91 402.93 ND

ND

Brown > clear
63 40X-6, 146-147 420.28 420.29 ND

ND

Clear
64 41X-1, 30-58 422.47 422.75 ND

ND

Brown
65 41X-1, 71-92 422.88 423.09 ND

ND

Brown
66 41X-1, 125-137 423.42 423.54 ND

ND

Brown
67 41X-2, 47-93 424.14 424.60 ND

ND

Brown
68 41X-3, 130-140 426.47 426.57 ND

ND

?
69 41X-4, 28-33 426.95 427.00 ND

ND

?
70 41X-5, 22-26 428.39 428.43 ND

ND

Brown
71 42X-1, 13-26 433.26 433.39 ND

ND

Brown > clear

Notes: Ash layers that could be correlated between holes are located in the same row and printed in bold type. ND = not drilled, NF = not found. ? = unknown.