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