Backman, Jan; Westberg-Smith, M J; Baldauf, Jack G; Brown, S; Bukry, David; Edwards, Lucy; Harland, Rex; Huddlestun, P (1984): (Table 1) Microfossil events at DSDP Leg 81 Holes [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.807219, Supplement to: Backman, J et al. (1984): Biostratigraphy of Leg 81 sediments - A high latitude record. In: Roberts, DG; Schnittker, D; et al. (eds.), Initial Reports of the Deep Sea Drilling Project, Washington (U.S. Govt. Printing Office), 81, 855-860, https://doi.org/10.2973/dsdp.proc.81.136.1984
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Abstract:
Leg 81 of the DSDP drilled four sites in a small area on the southwest flank of the Rockall Plateau. The biostratigraphy of the cores is based on six groups of microfossils: calcareous nannofossils, diatoms, dinoflagellates, planktonic foraminifers, radiolarians, and silicoflagellates. A good magnetostratigraphic record covering the interval from the top of the Brunhes to the Gauss/Gilbert boundary was obtained from one of the sites. Since magnetostratigraphy was not available for the older part of the section, it was not possible to estimate whether biostratigraphic indications in sediments older than 3.4 m.y. are diachronous or synchronous from low to high latitudes.
The biostratigraphic resolution is generally low for any single group, but higher resolution can be attained by using all available microfossil groups. A composite list of biostratigraphic events (mainly Neogene) is presented.
Project(s):
Deep Sea Drilling Project (DSDP)
Coverage:
Median Latitude: 56.205200 * Median Longitude: -22.823300 * South-bound Latitude: 56.042700 * West-bound Longitude: -23.528200 * North-bound Latitude: 56.561700 * East-bound Longitude: -20.782200
Date/Time Start: 1981-07-31T00:00:00 * Date/Time End: 1981-08-31T00:00:00
Minimum DEPTH, sediment/rock: 5.135 m * Maximum DEPTH, sediment/rock: 304.730 m
Event(s):
81-552 * Latitude: 56.042700 * Longitude: -23.231300 * Date/Time: 1981-07-31T00:00:00 * Elevation: -2301.0 m * Penetration: 314 m * Recovery: 79.1 m * Location: North Atlantic/PLATEAU * Campaign: Leg81 * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: 21 cores; 184 m cored; 35 m drilled; 43 % recovery
81-552A * Latitude: 56.042700 * Longitude: -23.231300 * Date/Time: 1981-07-31T00:00:00 * Elevation: -2301.0 m * Penetration: 183.5 m * Recovery: 182.3 m * Location: North Atlantic/PLATEAU * Campaign: Leg81 * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: 38 cores; 183.5 m cored; 0 m drilled; 99.4 % recovery
81-553A * Latitude: 56.088700 * Longitude: -23.343500 * Date/Time: 1981-08-07T00:00:00 * Elevation: -2329.0 m * Penetration: 682.5 m * Recovery: 288.8 m * Location: North Atlantic/PLATEAU * Campaign: Leg81 * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: 57 cores; 513 m cored; 19 m drilled; 56.3 % recovery
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Event label | Event | ||||
| 2 | Latitude of event | Latitude | ||||
| 3 | Longitude of event | Longitude | ||||
| 4 | Elevation of event | Elevation | m | |||
| 5 | Sample code/label | Sample label | Backman, Jan | DSDP/ODP/IODP sample designation | ||
| 6 | Sample code/label 2 | Sample label 2 | Backman, Jan | DSDP/ODP/IODP sample designation | ||
| 7 | Depth, top/min | Depth top | m | Backman, Jan | ||
| 8 | Depth, bottom/max | Depth bot | m | Backman, Jan | ||
| 9 | DEPTH, sediment/rock | Depth sed | m | Geocode – mbsf | ||
| 10 | Ageprofile Datum Description | Ageprof dat des | Backman, Jan | FAD - first appearance datum; LAD - last appearance datum. Arrows indicate an evolutionary transition. |
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
406 data points