Table T9. Control points used to calculate sedimentation rates at Site 1092. (See table note.)
| Code | Event/Zone/Chron | Depth range of stratigraphic datums | Age (Ma) |
Sedimentation rate (m/m.y.) |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Top | Base | Mean | |||||||||||
| Core,
section, interval (cm) |
Depth (mbsf) |
Depth (mcd) |
Core,
section, interval (cm) |
Depth (mbsf) |
Depth (mcd) |
Depth (mbsf) |
Depth (mcd) |
||||||
| 177- | 177- | ||||||||||||
| CN | acme E. huxleyi | 1092B-1H-1, 10-10 | 0.10 | 0.65 | 1092B-1H-1, 60-60 | 0.60 | 1.15 | 0.35 | 0.90 | 0.085 | ~10 |
||
| CN | FO E. huxleyi | 1092B-1H-1, 117-117 | 1.17 | 1.72 | 1092B-1H-2, 10-10 | 1.60 | 2.15 | 1.38 | 1.93 | 0.26 | |||
| CN | LO P. lacunosa | 1092B-1H-2, 70-70 | 2.20 | 2.75 | 1092B-1H-2, 126-126 | 2.76 | 3.31 | 2.48 | 3.03 | 0.46 | |||
| DIAT | TOP A. ingens Zone | 1092A-1H-2, 1-1 | 1.51 | 4.06 | 1092A-1H-3, 1-1 | 3.01 | 5.56 | 2.26 | 4.81 | 0.65 | |||
| RAD | BOT Psi Zone | 1092C-1H-0, 7-12 | 3.99 | 3.99 | 1092B-1H-0, 0-7 | 7.35 | 7.90 | 5.67 | 5.95 | 0.46 | |||
| CN | LO R. asanoi | 1092B-1H-5, 100-100 | 7.00 | 7.55 | 1092B-2H-1, 44-44 | 7.84 | 8.69 | 7.42 | 8.12 | 0.88 | ~29 | ||
| CN | RE Gephyrocapsa medium (4-5.5 µm) | 1092B-2H-1, 44-44 | 7.84 | 8.69 | 1092B-2H-2, 115-115 | 10.05 | 10.90 | 8.95 | 9.80 | 0.96 | |||
| CN | FO R. asanoi | 1092B-2H-3, 80-80 | 11.20 | 12.05 | 1092B-2H-4, 80-80 | 12.70 | 13.55 | 11.95 | 12.80 | 1.08 | |||
| CN | LO Gephyrocapsa large (>5.5 µm) | 1092B-2H-5, 40-40 | 13.80 | 14.65 | 1092B-2H-6, 30-30 | 15.20 | 16.05 | 14.50 | 15.35 | 1.24 | |||
| DIAT | TOP A. ingens Subzone a | 1092A-2H-0, 9-14 | 16.11 | 19.73 | 1092A-3H-2, 1-1 | 19.01 | 23.74 | 17.56 | 21.73 | 1.30 | |||
| CN | FO Gephyrocapsa large (>5.5 µm) | 1092B-3H-5, 40-40 | 23.30 | 24.54 | 1092B-3H-5, 140-140 | 24.30 | 25.54 | 23.80 | 25.04 | 1.46 | |||
| CN | FO Gephyrocapsa medium (4-5.5 µm) | 1092B-4H-3, 140-140 | 30.80 | 32.01 | 1092B-4H-4, 140-140 | 32.30 | 33.51 | 31.55 | 32.76 | 1.69 | |||
| DIAT | TOP P. barboi Zone | 1092C-4H-0, 0-5 | 32.07 | 35.30 | 1092A-4H-4, 1-1 | 31.51 | 36.38 | 31.79 | 35.84 | 1.80 | |||
| RAD | BOT Chi Zone | 1092B-4H-0, 5-10 | 35.82 | 37.03 | 1092A-4H-0, 4-14 | 36.74 | 41.61 | 36.28 | 39.32 | 1.92 | |||
| DIAT | TOP T. kolbei-F. matuyamae Zone | 1092A-4H-5, 1-1 | 33.01 | 37.88 | 1092A-4H-6, 1-1 | 34.51 | 39.38 | 33.76 | 38.63 | 2.00 | |||
| DIAT | TOP T. vulnifica Zone | 1092A-5H-5, 1-1 | 42.51 | 48.38 | 1092A-5H-6, 1-1 | 44.01 | 49.88 | 43.26 | 49.13 | 2.50 | ~12 |
||
| DIAT | TOP T. insigna Zone | 1092A-5H-6, 1-1 | 44.01 | 49.88 | 1092D-2H-2, 30-30 | 47.70 | 50.45 | 45.86 | 50.17 | 2.63 | |||
| DIAT | TOP F. interfrigidara Zone | 1092A-6H-1, 1-1 | 46.01 | 53.90 | 1092D-2H-5, 10-10 | 51.80 | 54.55 | 48.91 | 54.22 | 3.26 | |||
| CN | LO R. pseudoumbilicus | 1092A-6H-6, 0-0 | 53.50 | 61.39 | 1092A-6H-6, 100-100 | 54.50 | 62.39 | 54.00 | 61.89 | 3.66 | |||
| DIAT | BOT F. interfrigidara Zone | 1092A-7H-1, 1-1 | 55.51 | 64.20 | 1092D-3H-4, 10-10 | 60.00 | 64.31 | 57.75 | 64.25 | 3.80 | |||
| ~15 | |||||||||||||
| DIAT | FO T. inura | 1092A-7H-3, 1-1 | 58.51 | 67.20 | 1092A-7H-4, 1-1 | 60.01 | 68.70 | 59.26 | 67.95 | 4.92 | |||
| DIAT | TOP F. reinholdii Zone | 1092A-7H-5, 1-1 | 61.51 | 70.20 | 1092A-7H-6, 1-1 | 63.01 | 71.70 | 62.26 | 70.95 | 6.00 | |||
| RAD | BOT A. challengerae Zone | 1092A-7H-0, 15-20 | 64.82 | 73.51 | 1092A-8H-0, 11-16 | 73.72 | 83.17 | 69.27 | 78.34 | 6.58 | |||
| PMAG | BOT C4n | 1092A-9H-4, 80-80 | 79.80 | 81.60 | 1092A-9H-5, 110-110 | 89.30 | 90.93 | 90.115 | 90.12 | 7.89 | |||
| PMAG | BOT C4r | 1092A-9H-7, 25-25 | 83.60 | 85.60 | 1092A-10H-2, 10-10 | 93.35 | 96.14 | 94.745 | 94.75 | 8.53 | |||
| DIAT | BOT A. ing. var. ova. Zone | 1092A-9H-3, 1-1 | 77.46 | 86.79 | 1092A-10H-1, 73-75 | 84.73 | 95.27 | 81.10 | 91.03 | 8.68 | |||
| PMAG | BOT C4An | 1092A-11H-1, 80-80 | 94.30 | 95.20 | 1092A-11H-2, 20-20 | 106.79 | 107.69 | 107.24 | 107.24 | 8.86 | |||
| RAD | LO C. spongothorax | 1092C-10H-0, 14-19 | 89.74 | 97.42 | 1092A-10H-0, 15-20 | 93.63 | 104.17 | 91.69 | 100.80 | 9.12 | |||
| PMAG | BOT C4Ar | 1092A-12H-1, 120-120 | 104.20 | 106.20 | 1092A-12H-3 20-20 | 116.61 | 118.61 | 117.61 | 117.61 | 9.78 | |||
| DIAT | TOP D. hustedtii Zone | 1092A-13H-6, 71-71 | 120.71 | 134.93 | 1092A-14H-1, 118-118 | 123.18 | 139.30 | 121.95 | 137.12 | 10.23 | ~38 |
||
| RAD | FO A. australis | 1092C-14H-0, 15-20 | 127.92 | 142.74 | 1092A-14H-0, 10-15 | 131.11 | 147.23 | 129.52 | 144.98 | 10.36 | |||
| DIAT | TOP D. dimorpha Zone | 1092A-14H-5, 120-122 | 129.20 | 145.32 | 1092A-15H-5, 120-122 | 138.70 | 156.94 | 133.95 | 151.13 | 10.63 | |||
| PMAG | BOT C5n | 1092A-15H-5, 30-30 | 137.80 | 139.10 | 1092A-15H-6, 10-10 | 156 | 157.3 | 156.69 | 156.69 | 10.83 | |||
| CN | LO C. miopelagicus | 1092B-17H-2, 0-0 | 152.00 | 170.22 | 1092A-17H-5, 0-0 | 155.93 | 174.15 | 153.97 | 172.18 | 10.94 | ~4 | ||
| CN | LO C. nitescens | 1092A-17H-0, 32-37 | 158.51 | 176.73 | 1092A-18H-1, 0-0 | 160.00 | 179.85 | 159.26 | 178.29 | 12.10 | |||
| CN | LO C. premacintyrei | 1092A-17H-0, 32-37 | 158.51 | 176.73 | 1092A-18H-1, 0-0 | 160.00 | 179.85 | 159.26 | 178.29 | 12.70 | |||
| DIAT | TOP N. denticuloides Zone | 1092A-17H-3, 116-119 | 154.09 | 172.31 | 1092A-18H-1, 120-123 | 161.20 | 181.05 | 157.65 | 176.68 | 12.84 | |||
| CN | LCO C. floridanus | 1092A-17H-0, 32-37 | 158.51 | 176.73 | 1092A-18H-1, 0-0 | 160.00 | 179.85 | 159.26 | 178.29 | 13.20 | |||
| RAD | FO A. golownini | 1092B-17H-0, 23-28 | 157.96 | 174.82 | 1092B-18H-0, 25-30 | 168.65 | 184.56 | 163.31 | 179.69 | 13.61 | |||
| DIAT | TOP A. ingens var. nodus Zone | 1092A-18H-1, 120-120 | 161.20 | 181.05 | 1092A-18H-5, 120-120 | 167.20 | 187.05 | 164.20 | 184.05 | 14.17 | |||
| DIAT | TOP A.ingens/D.maccollum Zone | 1092A-18H-5, 120-123 | 167.20 | 187.05 | 1092A-19H-1, 65-68 | 170.15 | 192.49 | 168.68 | 189.77 | 15.38 | |||
| DIAT | TOP D. maccollumii Zone | 1092A-19H-1, 65-65 | 170.15 | 192.49 | 1092A-19H-2, 65-65 | 171.65 | 193.99 | 170.90 | 193.24 | 16.20 | |||
| CN | FO C. premacintyrei | 1092A-19H-3, 0-0 | 172.50 | 194.84 | 1092A-19H-4, 0-0 | 174.00 | 196.34 | 173.25 | 195.59 | 17.40 | |||
Notes: Code abbreviations: CN = calcareous nannofossil, DIAT = diatom, RAD = radiolaria, PMAG = magnetic polarity. Event abbreviations: FO = first occurrence, LO = last occurrence, LCO = last common occurrence, RE = reentrance, TOP = top of zone, BOT = bottom of zone. This table is also available in ASCII format in the TABLES directory.