Alvarez, Walter; Smit, Jan; Lowrie, William; Asaro, Frank; Margolis, Stanley V; Claeys, Philippe; Kastner, Miriam; Hildebrand, Alan R (1992): (Supplement) Iridium contents in sediments at DSDP Site 77-540 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.712633, In supplement to: Alvarez, W et al. (1992): Proximal impact deposits at the Cretaceous-Tertiary boundary in the Gulf of Mexico: A restudy of DSDP Leg 77 Sites 536 and 540. Geology, 20(8), 697-700, https://doi.org/10.1130/0091-7613(1992)020%3C0697:PIDATC%3E2.3.CO;2
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Project(s):
Deep Sea Drilling Project (DSDP)
Coverage:
Latitude: 23.828800 * Longitude: -84.370800
Date/Time Start: 1981-01-19T00:00:00 * Date/Time End: 1981-01-19T00:00:00
Minimum DEPTH, sediment/rock: 271.300 m * Maximum DEPTH, sediment/rock: 328.290 m
Event(s):
77-540 * Latitude: 23.828800 * Longitude: -84.370800 * Date/Time: 1981-01-19T00:00:00 * Elevation: -2926.0 m * Penetration: 745.5 m * Recovery: 335.1 m * Location: Gulf of Mexico * Campaign: Leg77 * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: 79 cores; 745.5 m cored; 0 m drilled; 44.9 % recovery
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | DEPTH, sediment/rock | Depth sed | m | Geocode | ||
| 2 | Depth, top/min | Depth top | m | Alvarez, Walter | ||
| 3 | Depth, bottom/max | Depth bot | m | Alvarez, Walter | ||
| 4 | Sample code/label | Sample label | Alvarez, Walter | DSDP/ODP/IODP sample designation | ||
| 5 | Iridium | Ir | ng/kg | Alvarez, Walter | Element analysis, neutron activation (NAA) | |
| 6 | Iridium | Ir | ng/kg | Alvarez, Walter | Calculated | error, +/-1 sigma |
| 7 | Lithologic unit/sequence | Unit | Alvarez, Walter |
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
186 data points
Data
| 1 Depth sed [m] | 2 Depth top [m] | 3 Depth bot [m] | 4 Sample label (DSDP/ODP/IODP sample designation) | 5 Ir [ng/kg] (Element analysis, neutron act...) | 6 Ir [ng/kg] (error, +/-1 sigma, Calculated) | 7 Unit |
|---|---|---|---|---|---|---|
| 271.300 | 271.28 | 271.32 | 77-540-30-1,78-82 | 36000 | 10000 | 5? |
| 271.790 | 271.78 | 271.80 | 77-540-30-1,128-130 | 26000 | 7000 | 5? |
| 272.820 | 272.81 | 272.83 | 77-540-30-2,81-83 | 68000 | 12000 | 5? |
| 272.935 | 272.93 | 272.94 | 77-540-30-CC,7-8 | 122000 | 14000 | 5? |
| 273.055 | 273.05 | 273.06 | 77-540-30-CC,19-20 | 259000 | 12000 | 5? |
| 280.015 | 280.01 | 280.02 | 77-540-31-1,1-2 | 205000 | 10000 | 3 |
| 280.295 | 280.29 | 280.30 | 77-540-31-1,29-30 | 196000 | 14000 | 3 |
| 280.540 | 280.53 | 280.55 | 77-540-31-1,53-55 | 85000 | 14000 | 3 |
| 280.905 | 280.90 | 280.91 | 77-540-31-1,90-91 | 155000 | 14000 | 3 |
| 280.995 | 280.99 | 281.00 | 77-540-31-1,99-100 | 212000 | 14000 | 3 |
| 281.185 | 281.18 | 281.19 | 77-540-31-1,118-119 | 117000 | 14000 | 3 |
| 281.415 | 281.41 | 281.42 | 77-540-31-1,141-142 | 78000 | 14000 | 3 |
| 281.605 | 281.60 | 281.61 | 77-540-31-2,10-11 | 84000 | 13000 | 3 |
| 281.770 | 281.76 | 281.78 | 77-540-31-2,26-28 | 36000 | 8000 | 3 |
| 282.085 | 282.08 | 282.09 | 77-540-31-2,58-59 | 59000 | 10000 | 3 |
| 282.475 | 282.47 | 282.48 | 77-540-31-2,97-98 | 89000 | 13000 | 3 |
| 282.635 | 282.63 | 282.64 | 77-540-31-2,113-114 | 83000 | 17000 | 3 |
| 282.770 | 282.76 | 282.78 | 77-540-31-2,126-128 | 39000 | 9000 | 2 or 3 |
| 290.175 | 290.16 | 290.19 | 77-540-32-1,66-69 | 3900 | 800 | 2 |
| 290.880 | 290.87 | 290.89 | 77-540-32-1,137-139 | 8800 | 1200 | 2 |
| 291.435 | 291.43 | 291.44 | 77-540-32-2,43-44 | 5500 | 1300 | 2 |
| 291.835 | 291.83 | 291.84 | 77-540-32-2,83-84 | 6200 | 1300 | 2 |
| 292.090 | 292.08 | 292.10 | 77-540-32-CC,12-14 | 8600 | 1300 | 2 |
| 299.500 | 299.49 | 299.51 | 77-540-33-1,49-51 | 5500 | 700 | 2 |
| 300.145 | 300.13 | 300.16 | 77-540-33-1,113-116 | 2000 | 800 | 2 |
| 300.465 | 300.46 | 300.47 | 77-540-33-1,146-147 | 3400 | 1200 | 2 |
| 308.590 | 308.58 | 308.60 | 77-540-34-1,8-10 | 4500 | 1000 | 2 |
| 309.110 | 309.10 | 309.12 | 77-540-34-1,60-62 | 1900 | 1000 | 2 |
| 309.240 | 309.23 | 309.25 | 77-540-34-1,73-75 | 3300 | 1000 | 2 |
| 327.915 | 327.90 | 327.93 | 77-540-36-1,40-43 | 2000 | 800 | 2 |
| 328.290 | 328.28 | 328.30 | 77-540-36-1,78-80 | 580 | 330 | 1 |