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
Data
| 1 Event | 2 Latitude | 3 Longitude | 4 Elevation [m] | 5 Sample label | 6 Sample label 2 | 7 Depth top [m] | 8 Depth bot [m] | 9 Depth sed [m] | 10 Ageprof dat des |
|---|---|---|---|---|---|---|---|---|---|
| 81-552 | 56.0427 | -23.2313 | -2301 | 81-552-1-CC | 81-552-2-CC | 3.40 | 51.00 | 27.200 | LAD Stylatractus universus |
| 81-552 | 56.0427 | -23.2313 | -2301 | 81-552-1-CC | 81-552-2-CC | 3.40 | 51.00 | 27.200 | LAD Stichocorys peregrina |
| 81-552 | 56.0427 | -23.2313 | -2301 | 81-552-2-1,48 | 81-552-2-1,100 | 51.49 | 52.01 | 51.750 | LAD Reticulofenestra pseudoumbilica |
| 81-552 | 56.0427 | -23.2313 | -2301 | 81-552-2-CC, below | 51.000 | FAD Globorotalia puncticulata | |||
| 81-552 | 56.0427 | -23.2313 | -2301 | 81-552-3-3,70-72 | 81-552-5-CC | 111.71 | 136.40 | 124.055 | Sphaeropyle robusta -> Sphaeropyle langii |
| 81-552 | 56.0427 | -23.2313 | -2301 | 81-552-3-3,70-72 | 81-552-3-CC | 111.71 | 117.40 | 114.555 | LAD Liriospyris cricus |
| 81-552 | 56.0427 | -23.2313 | -2301 | 81-552-3-1,1, above | 108.050 | LAD Discoaster quinqueramus | |||
| 81-552 | 56.0427 | -23.2313 | -2301 | 81-552-4-2,91-93 | 81-552-5-CC | 119.92 | 136.40 | 128.160 | FAD Liriospyris cricus |
| 81-552 | 56.0427 | -23.2313 | -2301 | 81-552-5-CC | 81-552-6-1,82-84 | 136.40 | 137.33 | 136.865 | Stichocorys delmontensis -> Stichocorys peregrina |
| 81-552 | 56.0427 | -23.2313 | -2301 | 81-552-8-CC | 81-552-9-CC | 164.90 | 174.40 | 169.650 | LAD Globorotalia mayeri |
| 81-552 | 56.0427 | -23.2313 | -2301 | 81-552-14-2,28 | 81-552-14-2,56 | 214.29 | 214.55 | 214.420 | LAD Tribrachiatus orthostylus |
| 81-552 | 56.0427 | -23.2313 | -2301 | 81-552-18-1,81 | 81-552-18-2,24 | 251.30 | 252.24 | 251.770 | FAD Discoaster lodoensis |
| 81-552 | 56.0427 | -23.2313 | -2301 | 81-552-21-3,39 | 282.400 | FAD Tribrachiatus orthostylus | |||
| 81-552A | 56.0427 | -23.2313 | -2301 | 81-552A-1-3,53-54 | 81-552A-2-2,122-123 | 3.54 | 6.73 | 5.135 | LAD Stylatractus universus |
| 81-552A | 56.0427 | -23.2313 | -2301 | 81-552A-2-3,49 | 81-552A-2-3,60 | 7.50 | 7.61 | 7.555 | LAD Pseudoemiliania lacunosa |
| 81-552A | 56.0427 | -23.2313 | -2301 | 81-552A-7-1,70 | 81-552A-7-1,90 | 29.71 | 29.91 | 29.810 | LAD Calcidiscus macintyrei |
| 81-552A | 56.0427 | -23.2313 | -2301 | 81-552A-8-1,30 | 81-552A-8-1,40 | 34.30 | 34.40 | 34.350 | LAD Discoaster brouweri |
| 81-552A | 56.0427 | -23.2313 | -2301 | 81-552A-8-CC | 81-552A-9-1,63-64 | 38.90 | 39.64 | 39.270 | LAD Thalassiosira convexa |
| 81-552A | 56.0427 | -23.2313 | -2301 | 81-552A-9-2,120 | 81-552A-9-3,20 | 41.72 | 42.22 | 41.970 | LAD Discoaster pentaradiatus |
| 81-552A | 56.0427 | -23.2313 | -2301 | 81-552A-9-3,40 | 81-552A-9-4,10 | 42.42 | 43.62 | 43.020 | LAD Discoaster surculus |
| 81-552A | 56.0427 | -23.2313 | -2301 | 81-552A-8-CC | 81-552A-9-CC | 38.90 | 44.00 | 41.450 | LAD Neogloboquadrina atlantica |
| 81-552A | 56.0427 | -23.2313 | -2301 | 81-552A-10-1,20 | 81-552A-10-1,90 | 44.22 | 44.92 | 44.570 | LAD Discoaster tamalis |
| 81-552A | 56.0427 | -23.2313 | -2301 | 81-552A-10-2,20-23 | 81-552A-10-2,30-33 | 45.72 | 45.82 | 45.770 | LAD Nitzschia jouseae |
| 81-552A | 56.0427 | -23.2313 | -2301 | 81-552A-9-CC | 81-552A-10-CC | 43.90 | 49.00 | 46.450 | LAD Globorotalia puncticulata |
| 81-552A | 56.0427 | -23.2313 | -2301 | 81-552A-13-CC | 81-552A-14-1,30-31 | 63.90 | 64.31 | 64.105 | LAD Stichocorys peregrina |
| 81-552A | 56.0427 | -23.2313 | -2301 | 81-552A-13-CC | 81-552A-14-1,30 | 63.90 | 68.00 | 65.950 | LAD Reticulofenestra pseudoumbilica |
| 81-552A | 56.0427 | -23.2313 | -2301 | 81-552A-14-2,20 | 81-552A-14-2,30 | 65.71 | 65.81 | 65.760 | FAD Discoaster tamalis |
| 81-552A | 56.0427 | -23.2313 | -2301 | 81-552A-15-CC | 81-552A-16-CC | 71.90 | 76.90 | 74.400 | LAD Globorotalia margaritae |
| 81-552A | 56.0427 | -23.2313 | -2301 | 81-552A-16-4,7-8 | 81-552A-16-CC | 76.58 | 76.90 | 76.740 | FAD Nitzschia jouseae |
| 81-552A | 56.0427 | -23.2313 | -2301 | 81-552A-19-CC | 81-552A-20-CC | 91.70 | 94.90 | 93.300 | FAD Globorotalia puncticulata |
| 81-552A | 56.0427 | -23.2313 | -2301 | 81-552A-21-1,124-125 | 81-552A-21-3,64-65 | 96.25 | 98.25 | 97.250 | LAD Thalassiosira nativa |
| 81-552A | 56.0427 | -23.2313 | -2301 | 81-552A-22-CC | 81-552A-23-CC | 103.90 | 108.40 | 106.150 | LAD Globorotalia conoidea |
| 81-552A | 56.0427 | -23.2313 | -2301 | 81-552A-25-3,133-134 | 81-552A-26-1,65-66 | 117.84 | 119.16 | 118.500 | Sphaeropyle robusta -> Sphaeropyle langii |
| 81-552A | 56.0427 | -23.2313 | -2301 | 81-552A-26-3,85-86 | 81-552A-27-1,108-109 | 122.35 | 124.59 | 123.470 | LAD Liriospyris cricus |
| 81-552A | 56.0427 | -23.2313 | -2301 | 81-552A-26-CC | 81-552A-27-CC | 123.40 | 128.40 | 125.900 | LAD Discoaster quinqueramus |
| 81-552A | 56.0427 | -23.2313 | -2301 | 81-552A-28-2,109-110 | 81-552A-28-3,109-110 | 131.10 | 132.60 | 131.850 | FAD Liriospyris cricus |
| 81-552A | 56.0427 | -23.2313 | -2301 | 81-552A-28-CC | 81-552A-29-1,137-138 | 133.40 | 134.88 | 134.140 | FAD Thalassiosira convexa and T. miocenica |
| 81-552A | 56.0427 | -23.2313 | -2301 | 81-552A-29-3,54-55 | 81-552A-30-CC | 137.05 | 143.50 | 140.275 | Stichocorys delmontensis -> Stichocorys peregrina |
| 81-552A | 56.0427 | -23.2313 | -2301 | 81-552A-32-CC | 81-552A-33-CC | 153.40 | 158.50 | 155.950 | FAD Discoaster quinqueramus |
| 81-552A | 56.0427 | -23.2313 | -2301 | 81-552A-35-CC | 81-552A-36-CC | 168.40 | 173.50 | 170.950 | LAD Globorotalia mayeri |
| 81-553A | 56.0887 | -23.3435 | -2329 | 81-553A-1-CC | 81-553A-2-CC | 74.90 | 113.00 | 93.950 | LAD Stichocorys peregrina |
| 81-553A | 56.0887 | -23.3435 | -2329 | 81-553A-1-CC | 81-553A-2-CC | 74.90 | 113.00 | 93.950 | LAD Globorotalia margaritae |
| 81-553A | 56.0887 | -23.3435 | -2329 | 81-553A-2-CC, below | 113.000 | FAD Globorotalia puncticulata | |||
| 81-553A | 56.0887 | -23.3435 | -2329 | 81-553A-2-CC | 81-553A-3-CC | 112.90 | 160.50 | 136.700 | LAD Globorotalia conoidea |
| 81-553A | 56.0887 | -23.3435 | -2329 | 81-553A-3-2,32-34 | 81-553A-7-4,19-21 | 152.83 | 212.70 | 182.765 | Stichocorys delmontensis -> Stichocorys peregrina |
| 81-553A | 56.0887 | -23.3435 | -2329 | 81-553A-6-6,30-32 | 81-553A-7-4,119-121 | 206.31 | 213.70 | 210.005 | LAD Didymocyrtis laticonus |
| 81-553A | 56.0887 | -23.3435 | -2329 | 81-553A-5-CC | 81-553A-6-CC | 198.40 | 208.00 | 203.200 | LAD Globorotalia mayeri |
| 81-553A | 56.0887 | -23.3435 | -2329 | 81-553A-6-6,30-32 | 81-553A-7-4,119-121 | 206.31 | 213.70 | 210.005 | LAD Lithopera renzae |
| 81-553A | 56.0887 | -23.3435 | -2329 | 81-553A-11-2,40 | 81-553A-11-2,80 | 247.91 | 248.31 | 248.110 | LAD Tribrachiatus orthostylus |
| 81-553A | 56.0887 | -23.3435 | -2329 | 81-553A-11-CC | 81-553A-12-1,26 | 255.40 | 255.77 | 255.585 | FAD Discoaster lodoensis |
| 81-553A | 56.0887 | -23.3435 | -2329 | 81-553A-12-1,26 | 81-553A-12-1,74 | 255.77 | 256.25 | 256.010 | FAD Tribrachiatus orthostylus |
| 81-554 | 56.2902 | -23.5282 | -2576 | 81-554-2-3,12-14 | 81-554-3-CC | 12.63 | 28.50 | 20.565 | LAD Stylatractus universus |
| 81-554 | 56.2902 | -23.5282 | -2576 | 81-554-1-CC | 81-554-2-2,85 | 9.40 | 11.85 | 10.625 | LAD Pseudoemiliania lacunosa |
| 81-554 | 56.2902 | -23.5282 | -2576 | 81-554-3-4,50 | 81-554-3-5,35 | 24.01 | 25.36 | 24.685 | LAD Calcidiscus macintyrei |
| 81-554 | 56.2902 | -23.5282 | -2576 | 81-554-3-CC | 81-554-5-2,35-37 | 28.40 | 39.86 | 34.130 | LAD Stichocorys peregrina |
| 81-554 | 56.2902 | -23.5282 | -2576 | 81-554-3-CC | 81-554-5-1,70 | 28.40 | 38.70 | 33.550 | LAD Reticulofenestra pseudoumbilica |
| 81-554 | 56.2902 | -23.5282 | -2576 | 81-554-3-CC | 81-554-5-CC | 28.40 | 47.50 | 37.950 | LAD Globorotalia margaritae |
| 81-554 | 56.2902 | -23.5282 | -2576 | 81-554-5-CC | 81-554-6-CC | 47.40 | 57.00 | 52.200 | FAD Nitzschia jouseae |
| 81-554 | 56.2902 | -23.5282 | -2576 | 81-554-5-CC | 81-554-6-CC | 47.40 | 57.00 | 52.200 | LAD Thalassiosira nativa |
| 81-554 | 56.2902 | -23.5282 | -2576 | 81-554-6-CC | 81-554-7-CC | 56.90 | 66.50 | 61.700 | LAD Globorotalia Conoidea |
| 81-554 | 56.2902 | -23.5282 | -2576 | 81-554-5-5,112-114 | 81-554-8-3,3-5 | 45.13 | 69.54 | 57.335 | Sphaeropyle robusta -> Sphaeropyle langii |
| 81-554 | 56.2902 | -23.5282 | -2576 | 81-554-5-5,112-114 | 81-554-6-6,22-24 | 45.13 | 55.23 | 50.180 | LAD Liriospyris cricus |
| 81-554 | 56.2902 | -23.5282 | -2576 | 81-554-6-5,46 | 81-554-6-CC | 53.97 | 57.00 | 55.485 | LAD Discoaster quinqueramus |
| 81-554 | 56.2902 | -23.5282 | -2576 | 81-554-7-3,42-44 | 81-554-7-4,27-28 | 60.43 | 61.78 | 61.105 | FAD Liriospyris cricus |
| 81-554 | 56.2902 | -23.5282 | -2576 | 81-554-8-CC | 81-554-A1-1,15-17 | 75.90 | 76.16 | 76.030 | FAD Thalassiosira convexa and T. miocenica |
| 81-554 | 56.2902 | -23.5282 | -2576 | 81-554-8-3,3-5 | 81-554-A4-1,58-60 | 69.54 | 105.09 | 87.315 | Stichocorys delmontensis -> Stichocorys peregrina |
| 81-554 | 56.2902 | -23.5282 | -2576 | 81-554-A1-11,15-17, below | 76.160 | FAD Thalassiosira praeconvexa | |||
| 81-554 | 56.2902 | -23.5282 | -2576 | 81-554-A1-1,18-20 | 81-554-A4-1,58-60 | 76.19 | 105.09 | 90.640 | LAD Didymocyrtis laticonus |
| 81-554 | 56.2902 | -23.5282 | -2576 | 81-554-A2-CC | 81-554-A3-CC | 94.90 | 104.50 | 99.700 | LAD Globorotalia mayeri |
| 81-554 | 56.2902 | -23.5282 | -2576 | 81-554-A4-1,58-60 | 81-554-A4-2,2-4 | 105.09 | 106.03 | 105.560 | LAD Lithopera renzae |
| 81-554 | 56.2902 | -23.5282 | -2576 | 81-554-A5-4,92 | 81-554-A5-CC | 118.43 | 123.50 | 120.965 | FAD Tribrachiatus orthostylus |
| 81-555 | 56.5617 | -20.7822 | -1659 | 81-555-1-CC | 81-555-2-CC | 5.40 | 15.00 | 10.200 | LAD Pseudoemiliania lacunosa |
| 81-555 | 56.5617 | -20.7822 | -1659 | 81-555-3-2,145 | 81-555-3-3,80 | 17.96 | 18.81 | 18.385 | LAD Calcidiscus macintyrei |
| 81-555 | 56.5617 | -20.7822 | -1659 | 81-555-3-3,80 | 81-555-3-4,80 | 18.81 | 20.31 | 19.560 | LAD Discoaster brouweri |
| 81-555 | 56.5617 | -20.7822 | -1659 | 81-555-3-CC, above | 24.500 | LAD Globorotalia margaritae | |||
| 81-555 | 56.5617 | -20.7822 | -1659 | 81-555-5-4,110-112, above | 39.620 | Sphaeropyle robusta -> Sphaeropyle langii | |||
| 81-555 | 56.5617 | -20.7822 | -1659 | 81-555-5-4,110-112, above | 39.620 | LAD Liriospyris cricus | |||
| 81-555 | 56.5617 | -20.7822 | -1659 | 81-555-3-CC | 81-555-4-CC | 24.40 | 33.90 | 29.150 | LAD Discoaster quinqueramus |
| 81-555 | 56.5617 | -20.7822 | -1659 | 81-555-5-6,6-8 | 81-555-6-4,30-32 | 41.57 | 48.31 | 44.940 | FAD Liriospyris cricus |
| 81-555 | 56.5617 | -20.7822 | -1659 | 81-555-5-CC | 81-555-6-4,76-78 | 43.30 | 48.77 | 46.035 | FAD Thalassiosira convexa and T. miocenica |
| 81-555 | 56.5617 | -20.7822 | -1659 | 81-555-6-4,30-32 | 81-555-6-6,30-32 | 48.31 | 51.31 | 49.810 | Stichocorys delmontensis ->Stichocorys peregrina |
| 81-555 | 56.5617 | -20.7822 | -1659 | 81-555-7-CC | 81-555-8-3,70 | 62.40 | 66.21 | 64.305 | FAD Thalassiosira praeconvexa |
| 81-555 | 56.5617 | -20.7822 | -1659 | 81-555-8-6,66-68 | 81-555-11-3,92-94 | 70.67 | 132.93 | 101.800 | LAD Didymocyrtis laticonus |
| 81-555 | 56.5617 | -20.7822 | -1659 | 81-555-16-CC | 81-555-17-CC | 185.90 | 195.50 | 190.700 | LAD Globorotalia mayeri |
| 81-555 | 56.5617 | -20.7822 | -1659 | 81-555-17-3,104-106 | 81-555-18-2,73-75 | 190.05 | 197.74 | 193.895 | LAD Lithopera renzae |
| 81-555 | 56.5617 | -20.7822 | -1659 | 81-555-27-1,5, above | 81-555-31-CC | 281.06 | 328.40 | 304.730 | LAD Tribrachiatus orthostylus |