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Table 3. Type, stratigraphic setting, textural characteristics, and composition of ash layers and ash-bearing sediments recovered at Sites 982 and 985 (early Pliocene and Oligocene sequences).

Label Type Core, section, interval (cm) Depth
(mbsf)		 Corrected depth (mcd*) Thickness (cm) Colorless glass
Brown glass Correlative samples Comments
Abundance Glass type Abundance Glass type

162-982A-





















982-1
DA?
16H-6, 4-6
148.74-148.76
166.86-166.88
2
***
bw






982-8, -20
20% volcanic glass

982-2
AL?
18H-2, 90-92
162.60-162.62
182.10-182.12
2
***
bw, p






982-9, -21
Nannofossil ooze with ash

982-3
DA?
24H-2, 70-80
219.40-219.50
243.59-243.69
10
*
bw, v, (p)








20% volcanic glass

982-4
DA?
24H-3, 20-39
220.40-220.59
244.59-244.78
19












Mixed sediment



























162-982B-





















982-5
AL
14H-CC
129.00
141.60
4
***








982-19


982-6
AL
15H-3, 129-130
133.29-133.30
147.35-147.36
1
***
bw, (p)


*






982-7
DA
16H-2, 62-64
140.62-140.64
155.36-155.38
2
***
bw, (p)








Burrow?

982-8
AL
17H-3, 27-40
151.27-151.40
166.86-166.99
13
**
bw






982-1, -20
45% volcanic glass

982-9
AL
18H-6, 42-50
165.42-165.50
182.00-182.08
8
**
bw


*
bl, (v)


Diffuse top

982-10
AL
28X-1, 85-100
250.15-250.30
270.74-270.89
15
**
bw, v


* p.alt.


982-22
20% volcanic glass

982-11
AL
29X-3, 67-70
262.57-262.60
283.16-283.19
3
*** p.alt.
bw


* p.alt.






982-12
DA
32X-4, 4-15
292.34-292.45
312.93-313.04
11
***
bw


***
v




982-13
DA
40X-2, 0-10
366.40-366.50
386.99-387.09
10






**
bl, v




982-14
AL
43X-2
395.30
415.89
2.5
**
bw


** p.alt.
v, bl


90% volcanic glass, highly vesicular particles

982-15
AL
52X-4, 108-112
485.78-485.82
506.37-506.41
4
***
bw, v


**
v, (bl)




982-16
EL?
53X-4, 75-85
494.95-495.05
515.54-515.64
10
** p.alt.




* p.alt.




10% volcanic glass

982-17
AL
55X-3, 146
513.36
533.95
4






**
v, bl




982-18
?
56X-6, 55-58
526.55-526.58
547.14-547.17
3
** p.alt.
bw, v, p








Dark layer



























162-982C-





















982-19
AL
15H-1, 135-139
128.65-128.69
141.73-141.77
4
***
v, bw


*
bl, v
982-5


982-20
AL
17H-4, 124-126
152.04-152.06
166.49-166.51
2
***
bl, bw


*
v, (bl)
982-1, -8
79% volcanic glass, highly vesicular brown glass

982-21
AL
19H-1, 8-9
165.38-165.39
181.81-181.82
1
***
bw, bl, (v, p)


**
v, bl
982-9, -2
Blackish layer

982-22
AL
27H-6, 120-130
250.00-250.10
270.66-270.76
10
***
v, bw, bl, p


* p.alt.


982-10
Top diffuse, 45% volcanic ash



























162-985A-





















985-1t
AL
11H-3, 33-57
96.53-96.77
102.87-103.11
24
***
v, bl






985-46t
Top of ash layer

985-1b
AL
11H-3, 33-57
96.53-96.77
102.87-103.11
24
***
v, bw


*


985-46b
Base of ash layer

985-2
AL
12H-1, 5-8
102.75-102.78
109.73-109.76
3
*alt




*






985-3
AL
12H-1, 60-62
103.30-103.32
110.28-110.30
2
* p.alt.




* alt






985-5
AL
12H-2, 66
104.86
111.84
1






* alt


985-66
Feldspar

985-6
AL
12H-3, 63-64
106.33-106.34
113.31-113.32
1






* alt


985-67
Feldspar

985-7
AL
12H-4, 80
108.00
114.98
0.5






* alt


985-69
Feldspar

985-8
AL
12H-5, 110
109.80
116.78
1.5
***
bw, v, (bl)










985-9
AL
13H-3, 57-59
115.77-115.79
123.26-123.28
2
* p.alt.




* alt






985-11
AL
13H-4, 3-6
116.73-116.76
124.22-124.25
3






* p.alt.






985-12
AL
13H-5, 107-108
119.27-119.28
126.76-126.77
1
*alt




* alt






985-13
AL
14H-2, 39-40
123.19-123.20
130.94-130.95
1
*












985-14
AL?
14H-3, 139-143
125.69-125.73
133.53-133.57
4
**alt








985-81
Pumice fragments up to 5mm Ø

985-15
AL
14H-6, 47-49
129.27-129.29
137.11-137.13
2
*alt




* alt






985-16
AL
16H-2, 82-93
143.02-143.11
150.86-150.95
9
***
bw, bl, p










985-18
AL
17H-2, 87-96
151.27-151.36
159.11-159.20
9
*** alt












985-19
AL
17H-2, 141-146
151.81-151.86
159.65-159.70
5
*** alt












985-20
AL
21X-4, 62-68
188.92-188.98
196.76-196.82
6
*
v, bw, p


**
bl, v


Highly vesicular basaltic glass

985-21
AL
23X-1, 10-15
203.10-203.15
210.94-210.99
5
**
v, bw


**
bl, v




985-22
AL
23X-2, 98-99
205.48-205.49
213.32-213.33
1
** p.alt.












985-23
AL
23X-7, 22-31
212.22-212.31
220.06-220.15
9
*** alt












985-24
AL
26X-4, 46-58
236.76-236.88
244.60-244.72
12
*** p.alt.
bw










985-25
AL
26X-6, 0-3
239.30-239.33
247.14-247.17
4






***




Continuation from 162-985A-26X-5, 149-150 cm

985-26
AL
26X-6, 53-59
239.83-239.89
247.67-247.73
6
*** p.alt.
v, bw, (bl)


*
bl, v




985-27
DA/EL?
28X-3, 73-83
254.83-254.93
262.67-262.77
10
***
bl, bw










985-28
DA/EL?
28X-5, 22-27
257.32-257.37
265.16-265.21
5






***
v, bl




985-29
DA
29X-5, 143-150
268.13-268.20
275.97-276.04
7
***
bw, bl, v


* p.alt.
bl


65% volcanic glass

985-31
AL
30X-3, 112-122
274.42-274.52
282.26-282.36
10
*




**
bl, v




985-32
AL?
33X-1, 69-75
299.89-299.95
307.73-307.79
6
*** alt




alt






985-33
AL
33X-2, 28-34
300.98-301.04
308.82-308.88
6
*** alt












985-34
AL?
33X-2, 128-134
301.98-302.04
309.82-309.88
6
** alt




** alt






985-35
AL
33X-3, 19-20
302.39-302.40
310.23-310.24
1






** alt






985-36
AL
33X-3, 112
303.32
311.16















985-37
AL
33X-4, 38-42
304.08-304.12
311.92-311.96
4














985-38
AL
42X-2, 53-55
387.53-387.55
395.37-395.39
2














985-39
AL
44X-2, 119-121
407.69-407.71
415.53-415.55
2














985-40
AL
47X-5, 33-36
440.33-440.36
448.17-448.20
3














985-41
AL
47X-6, 124-126
442.74-442.76
450.58-450.60
2














985-42
AL
47X-7, 149-150
444.49-444.50
452.33-452.34
2












Continuation from 162-985A-47X-6, 149

985-43
AL
47X-7, 12-16
443.12-443.16
450.96-451.00
4














985-44
?
48X-5, 69-71
450.29-450.31
458.13-458.17
2












77% volcanic glass

985-45
AL
59X-2, 82-84
551.52-551.54
559.36-559.38
2








































162-985B-





















985-46t
AL
11H-5, 88-111
95.78-96.01
102.89-103.12
23
***
bw, (bl)






985-1t
Top ash layer

985-46b
AL
11H-5, 88-111
95.78-96.01
102.89-103.12
23
***
bl, v, (bw)






985-1b
Base ash layer

985-48
AL
12H-1, 136-137
99.76-99.77
106.87-106.88
1














985-49
AL
12H-2, 92-94?
100.82-100.84
107.93-107.95
2














985-58
AL
12H-3, 121
102.61
109.62













Several small ash layers between 109 and 141 cm

985-59
AL
12H-3, 132
102.72
109.73













Several small ash layers between 109 and 141 cm

985-64
AL
12H-4, 4-8
102.94-102.98
109.95-109.99
4














985-65
AL
12H-4, 57-59
103.47-103.49
110.48-110.50
2














985-66
AL
12H-5, 47-48
104.87-104.88
111.88-111.89
1










985-5


985-67
AL
12H-6, 30-31
106.20-106.21
113.21-113.22
1










985-6
Feldspar

985-68
DA
12H-6, 63-68
106.53-106.58
113.54-113.59
5














985-69
DA
12H-7, 33-41
107.73-107.81
114.74-114.82
8










985-7


985-70
AL
12H-7, 54-55
107.94-107.95
114.95-114.96
1














985-72
AL
13H-1, 92-94
108.82-108.84
117.46-117.48
2














985-75
AL
13H-2, 123-131
110.63-110.71
119.27-119.35
8
***
bw, v, bl, (p)










985-78
AL
13H-3, 50-53
111.40-111.43
120.04-120.07
3
***
bw, v, bl










985-79
AL
14H-3, 145-146
121.85-121.86
131.18-131.19
1














985-80
AL
14H-4, 24-27
122.14-122.17
131.47-131.50
3












Burrow

985-81
AL
14H-5, 85
124.25-124.26
133.58-133.59
1













Notes: Labels occurring in the "correlative samples" column are possible correlative samples of other holes established by comparing corrected depths (mcd). * = see "Explanatory Notes" chapter in Jansen, Raymo, Blum, et al. (1996). Type: AL = discrete ash layer, DA = disseminated ash layer, EL = ash-enriched layer. With a few corrections and additions during sampling at the Bremen Core Repository, depth intervals, thicknesses, stratigraphy, and colors are taken from Jansen, Raymo, Blum, et al. (1996). Relative abundance: * = rare, ** = common, *** = abundant; alt = altered, p.alt. = partly altered. Glass types: v = vesicular shards, bw = bubble-wall shards, p = pumice fragments, bl = blocky shards (in order of relative amount). Italic entries indicate geochemically analyzed samples.

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