Kyte, Frank T (2001): (Table T1) Iridium concentration in ODP Site 177-1090 sediments [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.787341, Supplement to: Kyte, FT (2001): Identification of late Eocene impact deposits at ODP Site 1090. In: Gersonde, R; Hodell, DA; Blum, P (eds.) Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 177, 1-9, https://doi.org/10.2973/odp.proc.sr.177.110.2001
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Abstract:
Anomalous concentrations of Ir have been found in upper Eocene sediments from Ocean Drilling Program (ODP) Hole 1090B. Clear and dark-colored spherules that are believed to be microtektites and clinopyroxene-bearing microkrystites, respectively, were found in the samples with highest Ir. The peak Ir concentration in Sample 177-1090B-30X-5,105-106 (954 pg/g) and the net Ir fluence (14 ng/cm**2) at this site are higher than at most other localities except for Caribbean site RC9-58. The Ir anomaly and impact debris are probably correlative with similar deposits found at ODP Site 689 on the Maude Rise and at other localities around the world.
Project(s):
Ocean Drilling Program (ODP)
Coverage:
Latitude: -42.913700 * Longitude: 8.899700
Date/Time Start: 1997-12-26T15:22:00 * Date/Time End: 1997-12-28T14:55:00
Minimum DEPTH, sediment/rock: 284.05 m * Maximum DEPTH, sediment/rock: 292.94 m
Event(s):
177-1090B * Latitude: -42.913700 * Longitude: 8.899700 * Date/Time Start: 1997-12-26T15:22:00 * Date/Time End: 1997-12-28T14:55:00 * Elevation: -3699.4 m * Penetration: 397.5 m * Recovery: 373.23 m * Location: South Atlantic Ocean * Campaign: Leg177 * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 43 cores; 397.5 m cored; 0 m drilled; 93.9 % recovery
Comment:
Sediment depth is given in mcd.
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Sample code/label | Sample label | Kyte, Frank T | DSDP/ODP/IODP sample designation | ||
| 2 | DEPTH, sediment/rock | Depth sed | m | Geocode | ||
| 3 | Iridium | Ir | ng/kg | Kyte, Frank T | Element analysis, neutron activation (NAA) | |
| 4 | Iridium | Ir | ng/cm2 | Kyte, Frank T | calculated only in peak region, assuming that background Ir is 50 pg/g and dry density is 0.46 g/cm**3 |
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
146 data points
Data
| 1 Sample label | 2 Depth sed [m] | 3 Ir [ng/kg] | 4 Ir [ng/cm2] |
|---|---|---|---|
| 177-1090B-30X-1,6-7 | 284.05 | 26 | |
| 177-1090B-30X-1,6-7 | 284.05 | 26 | |
| 177-1090B-30X-1,13-14 | 284.12 | 20 | |
| 177-1090B-30X-1,18-19 | 284.17 | 26 | |
| 177-1090B-30X-1,23-24 | 284.22 | 11 | |
| 177-1090B-30X-1,30-31 | 284.29 | 12 | |
| 177-1090B-30X-1,35-36 | 284.34 | 16 | |
| 177-1090B-30X-1,42-43 | 284.41 | 17 | |
| 177-1090B-30X-1,47-48 | 284.46 | 13 | |
| 177-1090B-30X-1,52-53 | 284.51 | 19 | |
| 177-1090B-30X-1,62-63 | 284.61 | 11 | |
| 177-1090B-30X-1,72-73 | 284.71 | 11 | |
| 177-1090B-30X-1,77-78 | 284.76 | 22 | |
| 177-1090B-30X-1,83-84 | 284.82 | 33 | |
| 177-1090B-30X-1,88-89 | 284.87 | 18 | |
| 177-1090B-30X-1,92-93 | 284.91 | 13 | |
| 177-1090B-30X-1,97-98 | 284.96 | 11 | |
| 177-1090B-30X-1,101-102 | 285.00 | 12 | |
| 177-1090B-30X-1,107-108 | 285.06 | 16 | |
| 177-1090B-30X-1,112-113 | 285.11 | 14 | |
| 177-1090B-30X-1,117-118 | 285.16 | 13 | |
| 177-1090B-30X-1,124-125 | 285.23 | 28 | |
| 177-1090B-30X-1,134-135 | 285.33 | 21 | |
| 177-1090B-30X-1,144-145 | 285.43 | 19 | |
| 177-1090B-30X-2,5-6 | 285.54 | 16 | |
| 177-1090B-30X-2,15-16 | 285.64 | 25 | |
| 177-1090B-30X-2,24-25 | 285.73 | 17 | |
| 177-1090B-30X-2,35-36 | 285.84 | 15 | |
| 177-1090B-30X-2,45-46 | 285.94 | 20 | |
| 177-1090B-30X-2,56-57 | 286.05 | 17 | |
| 177-1090B-30X-2,65-66 | 286.14 | 19 | |
| 177-1090B-30X-2,75-76 | 286.24 | 35 | |
| 177-1090B-30X-3,135-136 | 288.34 | 36 | |
| 177-1090B-30X-3,145-146 | 288.44 | 45 | |
| 177-1090B-30X-4,6-7 | 288.55 | 37 | |
| 177-1090B-30X-4,15-16 | 288.64 | 42 | |
| 177-1090B-30X-4,25-26 | 288.74 | 36 | |
| 177-1090B-30X-4,35-36 | 288.84 | 80 | |
| 177-1090B-30X-4,45-46 | 288.94 | 42 | |
| 177-1090B-30X-4,56-57 | 289.05 | 42 | |
| 177-1090B-30X-4,65-66 | 289.14 | 48 | |
| 177-1090B-30X-4,75-76 | 289.24 | 82 | |
| 177-1090B-30X-4,86-87 | 289.35 | 50 | |
| 177-1090B-30X-4,95-96 | 289.44 | 71 | |
| 177-1090B-30X-4,105-106 | 289.54 | 54 | |
| 177-1090B-30X-4,115-116 | 289.64 | 57 | |
| 177-1090B-30X-4,125-126 | 289.74 | 63 | |
| 177-1090B-30X-4,135-136 | 289.84 | 73 | |
| 177-1090B-30X-4,144-145 | 289.93 | 87 | |
| 177-1090B-30X-5,5-6 | 290.04 | 117 | |
| 177-1090B-30X-5,15-16 | 290.14 | 60 | 0.05 |
| 177-1090B-30X-5,25-26 | 290.24 | 84 | 0.16 |
| 177-1090B-30X-5,35-36 | 290.34 | 87 | 0.17 |
| 177-1090B-30X-5,45-46 | 290.44 | 93 | 0.20 |
| 177-1090B-30X-5,55-56 | 290.54 | 124 | 0.34 |
| 177-1090B-30X-5,65-66 | 290.64 | 142 | 0.42 |
| 177-1090B-30X-5,75-76 | 290.74 | 247 | 0.91 |
| 177-1090B-30X-5,85-86 | 290.84 | 261 | 0.97 |
| 177-1090B-30X-5,95-96 | 290.94 | 518 | 2.15 |
| 177-1090B-30X-5,105-106 | 291.04 | 954 | 4.16 |
| 177-1090B-30X-5,115-116 | 291.14 | 752 | 3.23 |
| 177-1090B-30X-5,125-126 | 291.24 | 250 | 0.92 |
| 177-1090B-30X-5,135-136 | 291.34 | 105 | 0.25 |
| 177-1090B-30X-5,145-146 | 291.44 | 80 | 0.14 |
| 177-1090B-30X-6,75-76 | 292.24 | 52 | |
| 177-1090B-30X-6,145-146 | 292.94 | 46 |