Clark, Murlene W (1990): Pliocene-Pleistocene distribution of benthic foraminifers from ODP Hole 110-672A (Table 2) [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.745426, Supplement to: Clark, MW (1990): Deep-water Pliocene-Pleistocene foraminifers and oceanography (Lesser Antilles Forearc), Leg 110, Site 672. In: Moore, JC; Mascle, A; et al. (eds.), Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 110, 141-151, https://doi.org/10.2973/odp.proc.sr.110.134.1990
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Abstract:
Site 672 is located on the Atlantic abyssal plain to the east of the Lesser Antilles forearc region. It serves as a stratigraphic reference section for sediments entering the Barbados accretionary prism. A relatively complete Pliocene through lower Pleistocene section was recovered from Site 672 that contains a moderately well-preserved population of benthic foraminifers. Q-mode factor analysis of the benthic population data identified three Pliocene-Pleistocene assemblages that inhabited this site. The Factor 1 fauna, characterized by Nuttallides umboniferus, is commonly associated with the presence of Antarctic Bottom Water (AABW). The Factor 2 assemblage is characterized by Globocassidulina subglobosa, Epistominella exigua, and a combined category of unilocular species. The Factor 3 assemblage is characterized by Epistominella exigua, and Planulina wuellerstorfi. The Factor 2 and 3 faunas are associated with bottom water significantly warmer than that preferred by the Factor 1 assemblage.
The distribution of these assemblages has been used to distinguish three climatic intervals in the abyssal environment during the Pliocene-Pleistocene. An early Pliocene warm interval occurred from the Ceratolithus rugosus Subzone to the middle of the Discoaster tamalis Subzone. The upper Pliocene is characterized by oscillations between the Factor 1 and Factor 2 assemblages, which suggests climatic deterioration and increased pulses of AABW flow. The persistence of an essentially modern (Factor 1) fauna throughout the early Pleistocene suggests full glacial development at both poles and a substantial volume of AABW production.
Project(s):
Ocean Drilling Program (ODP)
Coverage:
Latitude: 15.540000 * Longitude: -58.641000
Date/Time Start: 1986-07-15T11:10:00 * Date/Time End: 1986-07-22T12:15:00
Minimum DEPTH, sediment/rock: 0.73 m * Maximum DEPTH, sediment/rock: 107.80 m
Event(s):
110-672A * Latitude: 15.540000 * Longitude: -58.641000 * Date/Time Start: 1986-07-15T11:10:00 * Date/Time End: 1986-07-22T12:15:00 * Elevation: -4984.0 m * Penetration: 493.8 m * Recovery: 382.62 m * Location: South Atlantic Ocean * Campaign: Leg110 * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 53 cores; 493.8 m cored; 0 m drilled; 77.5 % recovery
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Epoch | Epoch | Clark, Murlene W | |||
| 2 | Nannofossil zone | Nannos zone | Clark, Murlene W | |||
| 3 | DEPTH, sediment/rock | Depth sed | m | Geocode | ||
| 4 | Sample code/label | Sample label | Clark, Murlene W | DSDP/ODP/IODP sample designation | ||
| 5 | Foraminifera, benthic | Foram benth | # | Clark, Murlene W | Counting >125 µm fraction | total counts |
| 6 | Anomalinoides globosus | A. globosus | # | Clark, Murlene W | Counting >125 µm fraction | |
| 7 | Astrononion echolsi | A. echolsi | # | Clark, Murlene W | Counting >125 µm fraction | |
| 8 | Bolivina pseudoplicata | B. pseudoplicata | # | Clark, Murlene W | Counting >125 µm fraction | |
| 9 | Buliminella sp. | Buliminella sp. | # | Clark, Murlene W | Counting >125 µm fraction | sp. 1 |
| 10 | Cassidulina spp. | Cassidulina spp. | # | Clark, Murlene W | Counting >125 µm fraction | |
| 11 | Cassidulinoides spp. | Cassidulinoides spp. | # | Clark, Murlene W | Counting >125 µm fraction | |
| 12 | Cibicidoides bradyi | C. bradyi | # | Clark, Murlene W | Counting >125 µm fraction | |
| 13 | Cibicidoides kullenbergi | C. kullenbergi | # | Clark, Murlene W | Counting >125 µm fraction | |
| 14 | Cibicidoides cf. pseudoungerianus | C. cf. pseudoungerianus | # | Clark, Murlene W | Counting >125 µm fraction | |
| 15 | Cibicidoides spp. | Cibicidoides spp. | # | Clark, Murlene W | Counting >125 µm fraction | |
| 16 | Dorothia brevis | D. brevis | # | Clark, Murlene W | Counting >125 µm fraction | |
| 17 | Eggerella bradyi | E. bradyi | # | Clark, Murlene W | Counting >125 µm fraction | |
| 18 | Ehrenbergina trigona | E. trigona | # | Clark, Murlene W | Counting >125 µm fraction | |
| 19 | Epistominella exigua | E. exigua | # | Clark, Murlene W | Counting >125 µm fraction | |
| 20 | Eponides polius | E. polius | # | Clark, Murlene W | Counting >125 µm fraction | |
| 21 | Eponides pusillus | E. pusillus | # | Clark, Murlene W | Counting >125 µm fraction | |
| 22 | Eponides tumidulus | E. tumidulus | # | Clark, Murlene W | Counting >125 µm fraction | |
| 23 | Fissurina spp. | Fissurina spp. | # | Clark, Murlene W | Counting >125 µm fraction | Fissurina, Lagena, Oolina, Parafissurina |
| 24 | Globocassidulina subglobosa | G. subglobosa | # | Clark, Murlene W | Counting >125 µm fraction | |
| 25 | Gyroidinoides altiformis | G. altiformis | # | Clark, Murlene W | Counting >125 µm fraction | |
| 26 | Gyroidinoides lamarckiana | G. lamarckiana | # | Clark, Murlene W | Counting >125 µm fraction | |
| 27 | Gyroidinoides sp. | Gyroidinoides sp. | # | Clark, Murlene W | Counting >125 µm fraction | sp. 1 |
| 28 | Gyroidinoides sp. | Gyroidinoides sp. | # | Clark, Murlene W | Counting >125 µm fraction | sp. 2 |
| 29 | Gyroidinoides sp. | Gyroidinoides sp. | # | Clark, Murlene W | Counting >125 µm fraction | sp. 3 |
| 30 | Gyroidinoides spp. | Gyroidinoides spp. | # | Clark, Murlene W | Counting >125 µm fraction | |
| 31 | Laticarinina pauperata | L. pauperata | # | Clark, Murlene W | Counting >125 µm fraction | |
| 32 | Lenticulina spp. | Lenticulina spp. | # | Clark, Murlene W | Counting >125 µm fraction | |
| 33 | Melonis barleeanus | M. barleeanus | # | Clark, Murlene W | Counting >125 µm fraction | |
| 34 | Melonis pompilioides | M. pompilioides | # | Clark, Murlene W | Counting >125 µm fraction | |
| 35 | Miliolina spp. | Miliolina spp. | # | Clark, Murlene W | Counting >125 µm fraction | |
| 36 | Nuttallides umbonifera | N. umbonifera | # | Clark, Murlene W | Counting >125 µm fraction | |
| 37 | Oridorsalis umbonatus | O. umbonatus | # | Clark, Murlene W | Counting >125 µm fraction | s.l. |
| 38 | Planulina wuellerstorfi | P. wuellerstorfi | # | Clark, Murlene W | Counting >125 µm fraction | |
| 39 | Pleurostomella spp. | Pleurostomella spp. | # | Clark, Murlene W | Counting >125 µm fraction | |
| 40 | Pullenia bulloides | P. bulloides | # | Clark, Murlene W | Counting >125 µm fraction | |
| 41 | Pullenia osloensis | P. osloensis | # | Clark, Murlene W | Counting >125 µm fraction | |
| 42 | Pullenia quinqueloba | P. quinqueloba | # | Clark, Murlene W | Counting >125 µm fraction | |
| 43 | Pullenia salisburyi | P. salisburyi | # | Clark, Murlene W | Counting >125 µm fraction | s.l. |
| 44 | Pullenia subcarinata | P. subcarinata | # | Clark, Murlene W | Counting >125 µm fraction | |
| 45 | Pullenia spp. | Pullenia spp. | # | Clark, Murlene W | Counting >125 µm fraction | |
| 46 | Pyrgo elongata | P. elongata | # | Clark, Murlene W | Counting >125 µm fraction | |
| 47 | Pyrgo lucernula | P. lucernula | # | Clark, Murlene W | Counting >125 µm fraction | |
| 48 | Pyrgo murrhina | P. murrhina | # | Clark, Murlene W | Counting >125 µm fraction | |
| 49 | Pyrgo sp. | Pyrgo sp. | # | Clark, Murlene W | Counting >125 µm fraction | sp. 1 |
| 50 | Pyrulina extensa | P. extensa | # | Clark, Murlene W | Counting >125 µm fraction | |
| 51 | Quinqueloculina venusta | Q. venusta | # | Clark, Murlene W | Counting >125 µm fraction | |
| 52 | Quinqueloculina cf. weaveri | Q. cf. weaveri | # | Clark, Murlene W | Counting >125 µm fraction | |
| 53 | Siphotextularia catenata | S. catenata | # | Clark, Murlene W | Counting >125 µm fraction | |
| 54 | Sphaeroidina bulloides | S. bulloides | # | Clark, Murlene W | Counting >125 µm fraction | |
| 55 | Stainforthia complanata | S. complanata | # | Clark, Murlene W | Counting >125 µm fraction | |
| 56 | Stilostomella spp. | Stilostomella spp. | # | Clark, Murlene W | Counting >125 µm fraction | |
| 57 | Textularia australis | T. australis | # | Clark, Murlene W | Counting >125 µm fraction | |
| 58 | Uvigerina hollicki | U. hollicki | # | Clark, Murlene W | Counting >125 µm fraction | |
| 59 | Uvigerina proboscidea | U. proboscidea | # | Clark, Murlene W | Counting >125 µm fraction | |
| 60 | Uvigerina senticosa | U. senticosa | # | Clark, Murlene W | Counting >125 µm fraction |
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
4409 data points
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