Table T1. X-ray
diffraction estimates of opal and terrigenous sediment abundances for Site 1090.
Core,
section,
interval (cm) |
Depth
(mbsf) |
Depth
(mcd) |
Quartz/feldspar
(XRD
peak area
ratio) |
Clay/
(quartz +
feldspar)
(XRD
peak area ratio) |
Opal
carbonate-free
fraction
(wt%; XRD
peak
intensity) |
| |
|
|
|
|
|
| 177-1090B- |
|
|
|
|
|
| 1H-1, 74-75 |
0.75 |
0.75 |
1.1 |
0.188 |
|
| |
|
|
|
|
|
| 177-1090A- |
|
|
|
|
|
| 1H-1, 91-93 |
0.92 |
0.92 |
1.29 |
0.154 |
17.2 |
| 1H-2, 91-93 |
2.42 |
2.42 |
1.39 |
0.106 |
10.7 |
| |
|
|
|
|
|
| 177-1090B- |
|
|
|
|
|
| 1H-3, 74-76 |
3.25 |
3.25 |
1.97 |
0.219 |
|
| 2H-1, 76-77 |
4.97 |
4.97 |
1.3 |
0.23 |
18.2 |
| |
|
|
|
|
|
| 177-1090A- |
|
|
|
|
|
| 1H-4, 72-74 |
5.23 |
5.23 |
1.76 |
0.203 |
|
| |
|
|
|
|
|
| 177-1090B- |
|
|
|
|
|
| 2H-3, 76-77 |
7.97 |
7.97 |
1.55 |
0.246 |
|
| 2H-5, 76-77 |
10.97 |
10.97 |
1.29 |
0.19 |
18.2 |
| 3H-1, 71-73 |
14.42 |
16.17 |
1.56 |
0.275 |
15.7 |
| 3H-3, 72-73 |
17.43 |
19.18 |
1.33 |
0.202 |
|
| 3H-6, 75-78 |
21.97 |
23.72 |
1.66 |
0.254 |
|
| 4H-3, 76-77 |
26.97 |
29.48 |
1.7 |
0.141 |
16.7 |
| 4H-5, 75-77 |
29.96 |
32.47 |
1.55 |
0.211 |
13.7 |
| 5H-4, 76-77 |
37.67 |
41.28 |
1.42 |
0.148 |
15.7 |
| 6H-3, 76-78 |
45.97 |
47.57 |
0.92 |
0.288 |
26.1 |
| 6H-4, 74-76 |
47.45 |
49.05 |
2.36 |
0.129 |
15.4 |
| 7H-3, 74-76 |
55.45 |
61.75 |
1.01 |
0.275 |
|
| 7H-5, 74-76 |
58.45 |
64.75 |
0.91 |
0.129 |
|
| 8H-2, 22-24 |
62.93 |
66.64 |
1.49 |
0.219 |
17.2 |
| 8H-3, 76-77 |
64.97 |
68.68 |
1.37 |
0.29 |
22.2 |
| 9H-4, 72-73 |
75.93 |
79.62 |
0.65 |
0.359 |
|
| 9H-6, 72-73 |
78.93 |
82.62 |
0.85 |
0.378 |
18.7 |
| 10H-3, 74-76 |
83.95 |
88.52 |
0.6 |
0.218 |
19.7 |
| 10H-5, 74-76 |
86.95 |
91.52 |
0.67 |
0.244 |
|
| 11H-4, 72-73 |
94.93 |
98.92 |
0.69 |
0.247 |
34.6 |
| 11H-6, 20-21 |
96.81 |
100.8 |
0.62 |
0.277 |
|
| 13H-2, 76-77 |
111 |
116.4 |
0.44 |
0.215 |
27.6 |
| 13H-6, 53-54 |
116.7 |
122.2 |
0.63 |
0.276 |
31.6 |
| 14H-2, 72-73 |
120.4 |
124.1 |
0.78 |
0.232 |
26.6 |
| 14H-3, 72-73 |
121.9 |
125.6 |
0.7 |
0.315 |
|
| 15H-3, 72-73 |
131.4 |
137.9 |
0.97 |
0.306 |
29.1 |
| 15H-5, 71-73 |
134.4 |
140.9 |
|
|
89.9 |
| 16H-2, 119-121 |
139.9 |
146.6 |
0.97 |
0.418 |
28.1 |
| 16H-5, 73-77 |
144 |
150.6 |
1.01 |
0.229 |
14.7 |
| 17H-3, 74-76 |
150.5 |
158 |
0.95 |
0.283 |
23.6 |
| 17H-5, 35-37 |
153.1 |
160.6 |
0.79 |
0.313 |
|
| 18H-5, 75-76 |
163 |
170.7 |
0.97 |
0.276 |
31.6 |
| 19H-5, 72-74 |
172.4 |
181.9 |
1.33 |
0.326 |
33.6 |
| 20H-2, 122-125 |
177.9 |
185.6 |
0.93 |
0.351 |
177.9 |
| 21X-1, 72-73 |
185.4 |
193.5 |
0.68 |
0.367 |
53.5 |
| 21X-3, 72-73 |
188.4 |
196.5 |
0.95 |
0.368 |
37.1 |
| 22X-3, 73-74 |
198.1 |
205.8 |
0.83 |
0.282 |
44.6 |
| 22X-5, 73-74 |
201.1 |
208.8 |
0.99 |
0.341 |
|
| 23X-1, 72-73 |
204.8 |
213.2 |
0.76 |
0.289 |
29.6 |
| 23X-5, 72-73 |
209.7 |
218.1 |
0.72 |
0.184 |
26.1 |
| 23X-7, 72-73 |
212.7 |
221.1 |
0.7 |
0.363 |
|
| 24X-1, 70-71 |
214.5 |
225.5 |
0.38 |
0.294 |
35.6 |
| 24X-5, 86-87 |
220.7 |
231.6 |
0.33 |
0 |
12.7 |
| 25X-1, 61-62 |
224.1 |
234.8 |
0.3 |
0.265 |
53 |
| 25X-5, 61-62 |
230.1 |
240.8 |
0.51 |
0 |
68.5 |
| 26X-3, 21-23 |
236.4 |
248.4 |
0.29 |
0.362 |
36.1 |
| 26X-5, 23-26 |
239.4 |
251.4 |
0.5 |
0.17 |
43.1 |
| 26X-7, 17-20 |
242.4 |
254.4 |
0.32 |
0.21 |
45.6 |
| 27X-2, 97-100 |
245.4 |
257.4 |
0.96 |
0.159 |
46.6 |
| 27X-4, 100-102 |
248.4 |
260.4 |
0.42 |
0.389 |
28.1 |
| 28X-4, 93-95 |
258 |
270 |
0.43 |
0.083 |
80.4 |
| 29X-3, 23-25 |
265.5 |
277.5 |
0.53 |
|
|
| 29X-5, 109-111 |
269.4 |
281.4 |
0.29 |
0.198 |
|
| 30X-1, 124-126 |
273.2 |
285.2 |
0.55 |
0.281 |
56.5 |
| 30X-6, 30-32 |
279.8 |
291.8 |
0.18 |
0.167 |
|
| 31X-3, 64-66 |
285.4 |
297.3 |
0.35 |
0.121 |
36.1 |
| 31X-4, 72-74 |
286.9 |
298.9 |
0.32 |
0.152 |
31.6 |
| 32X-1, 46-47 |
291.9 |
303.9 |
0.54 |
0.206 |
46.1 |
| 32X-2, 46-47 |
293.4 |
305.4 |
0.61 |
0.287 |
70.5 |
| 33X-2, 91-92 |
296.7 |
308.7 |
0.49 |
0.2 |
33.6 |
| 34X-3, 60-61 |
304.7 |
316.7 |
0.42 |
0.155 |
42.1 |
| 34X-6, 43-44 |
309 |
321 |
0.49 |
0.22 |
49 |
| 35X-2, 47-48 |
312.8 |
324.8 |
0.39 |
0.263 |
36.6 |
| 35X-5, 60-61 |
317.4 |
329.4 |
0.2 |
0.264 |
27.1 |
| 36X-4, 70-71 |
325.6 |
337.6 |
0.19 |
0.317 |
23.1 |
| 36X-5, 91-92 |
327.3 |
339.3 |
0.15 |
0.268 |
24.1 |
| 37X-1, 71-72 |
330.7 |
342.7 |
0.18 |
0.191 |
24.6 |
| 37X-4, 71-72 |
335.2 |
347.2 |
0.24 |
0.348 |
19.7 |
| 38X-3, 71-72 |
343.3 |
355.3 |
0.26 |
0.517 |
13.2 |
| 38X-5, 71-73 |
346.3 |
358.3 |
0.42 |
0.431 |
|
| 39X-3, 71-72 |
352.9 |
364.9 |
0.53 |
0.531 |
0.7 |
| 39X-5, 71-72 |
355.9 |
367.9 |
0.71 |
0.613 |
9.7 |
| 40X-3, 71-73 |
362.5 |
374.5 |
0.87 |
0.566 |
|
| 40X-5, 71-72 |
365.5 |
377.5 |
0.65 |
0.425 |
5.2 |
| 41X-1, 84-86 |
369.2 |
381.2 |
0.73 |
0.461 |
1.2 |
| 41X-3, 85-87 |
372.3 |
384.3 |
1.86 |
0.65 |
|
| 42X-2, 94-96 |
380.6 |
392.5 |
0.79 |
0.66 |
4.2 |
| 42X-6, 84-86 |
386.5 |
398.4 |
0.81 |
0.685 |
1.7 |
| 43X-1, 65-67 |
388.5 |
400.4 |
1.05 |
0.727 |
6.7 |
| 43X-5, 55-57 |
394.4 |
406.4 |
0.84 |
0.597 |
8.2 |
Notes: XRD = X-ray diffraction. This
table is also available in ASCII format in the TABLES
directory.