Michel, Helen V; Asaro, Frank; Alvarez, Walter; Alvarez, Luis W (1990): (Table 4) Background iridium abundances in K-T region of ODP Hole 113-690C [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.754254, In supplement to: Michel, HV et al. (1990): Geochemical studies of the Cretaceous/Tertiary boundary in ODP Holes 689B and 690C. In: Barker, PF; Kennett, JP; et al. (eds.), Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 113, 159-168, https://doi.org/10.2973/odp.proc.sr.113.161.1990
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Project(s):
Ocean Drilling Program (ODP)
Coverage:
Latitude: -65.160000 * Longitude: 1.204800
Date/Time Start: 1987-01-21T07:00:00 * Date/Time End: 1987-01-23T20:30:00
Minimum Elevation: -2925.0 m * Maximum Elevation: -2925.0 m
Event(s):
113-690C * Latitude: -65.160000 * Longitude: 1.204800 * Date/Time Start: 1987-01-21T07:00:00 * Date/Time End: 1987-01-23T20:30:00 * Elevation: -2925.0 m * Penetration: 321.2 m * Recovery: 177.19 m * Location: South Atlantic Ocean * Campaign: Leg113 * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 23 cores; 200.6 m cored; 0 m drilled; 88.3 % recovery
Comment:
Sample thickness 1 cm.
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Sample code/label | Sample label | Michel, Helen V | DSDP/ODP/IODP sample designation | ||
| 2 | Comment | Comment | Michel, Helen V | |||
| 3 | Sample comment | Sample comment | Michel, Helen V | Sampling frequency (cm) | ||
| 4 | Sample amount | N | # | Michel, Helen V | ||
| 5 | Iridium | Ir | ng/kg | Michel, Helen V | ||
| 6 | Root mean square error | RMS | Michel, Helen V | Iridium | ||
| 7 | Error, absolute | Error a | ± | Michel, Helen V | Iridium average counting error | |
| 8 | Iridium, standard deviation | Ir std dev | ± | Michel, Helen V | ||
| 9 | Iridium, standard deviation | Ir std dev | ± | Michel, Helen V | + | |
| 10 | Iridium, standard deviation | Ir std dev | ± | Michel, Helen V | - | |
| 11 | Comment 2 (continued) | Comm 2 | Michel, Helen V |
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
118 data points
Data
| 1 Sample label | 2 Comment | 3 Sample comment (Sampling frequency (cm)) | 4 N [#] | 5 Ir [ng/kg] | 6 RMS (Iridium) | 7 Error a [±] (Iridium average counting error) | 8 Ir std dev [±] | 9 Ir std dev [±] (+) | 10 Ir std dev [±] (-) | 11 Comm 2 |
|---|---|---|---|---|---|---|---|---|---|---|
| 113-690C-15X-1,1-148 | Low-precision above K-T boundary (7-min scans) | ~10 cm | 15 | 4.0 | 31 | 24 | 5.0 | values for this and the next two following section | ||
| 113-690C-15X-2,7-143 | Low-precision above K-T boundary (7-min scans) | ~10 cm | 14 | |||||||
| 113-690C-15X-3,2-64 | Low-precision above K-T boundary (7-min scans) | ~10 cm | 7 | |||||||
| 113-690C-15X-3,71-108 | Higher precision measurements | ~10 cm | 5 | 14.5 | 5 | 8 | 3.4 | |||
| 113-690C-15X-3,118-144 | Higher precision measurements | ~6 cm | 5 | 36.0 | 13 | 9 | 6.0 | |||
| 113-690C-15X-3,149-150 | Higher precision measurements | 1 | 75.0 | 2 | 14 | 8.0 | values for this and the next two following section | |||
| 113-690C-15X-4,0-5 | Higher precision measurements | 4 cm | 2 | |||||||
| 113-690C-15X-4,9-22 | Higher precision measurements | 5, 3, 3, 1 cm | 5 | |||||||
| 113-690C-15X-5,18-150 | K-T boundary interval. Low-precision measurements below K-T boundary (14-min scans) | ~10 cm | 14 | 22.0 | ||||||
| 113-690C-15X-6,10-150 | K-T boundary interval. Low-precision measurements below K-T boundary (14-min scans) | ~10 cm | 15 | 25.0 | ||||||
| 113-690C-15X-7,10-311 | K-T boundary interval. Low-precision measurements below K-T boundary (14-min scans) | ~10 cm | 3 | 11.0 | 33 | 34 | 10.0 | values for this and the next two following section | ||
| 113-690C-16X-1,6-1281 | K-T boundary interval. Low-precision measurements below K-T boundary (14-min scans) | ~10 cm | 10 | |||||||
| 113-690C-15X-CC,5-261 | K-T boundary interval. Low-precision measurements below K-T boundary (14-min scans) | ~10 cm | 3 | 27.0 | 39 | values for this and the two above section | ||||
| 113-690C-15X-5,79-801 | Higher precision measurements | 1 | 13.9 | 4.9 | ||||||
| 113-690C-15X-5,130-1311 | Higher precision measurements | 1 | 20.8 | 7.0 | ||||||
| 113-690C-15X-6,10-111 | Higher precision measurements | 1 | 19.0 | 25 | 17 | |||||
| 113-690C-15X-6,50-511 | Higher precision measurements | 1 | 17.0 | 5.0 | ||||||
| 113-690C-15X-6,110-1111 | Higher precision measurements | 1 | 21.0 | 19 | 13 | |||||
| 113-690C-15X-7,10-111 | Higher precision measurements | 1 | 26.0 | 28 | 20 | |||||
| 113-690C-15X-CC,25-261 | Higher precision measurements | 1 | 29.0 | 21 | 14 |