Ehrmann, Lisa M; Keigwin, Lloyd D (1987): (Table 1) Planktonic foraminiferal abundance at DSDP Site 94-606 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.788610, Supplement to: Ehrmann, LM; Keigwin, LD (1987): Middle Pliocene change in planktonic foraminiferal fauna at Site 606. In: Ruddiman, WF; Kidd, RB; Thomas, E; et al. (eds.), Initial Reports of the Deep Sea Drilling Project, Washington (U.S. Govt. Printing Office), 94, 921-924, https://doi.org/10.2973/dsdp.proc.94.128.1987
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Abstract:
A "total fauna" curve (Ruddiman, 1971; doi:10.1130/0016-7606(1971)82[283:PSITEA]2.0.CO;2) shows that surface water overlying DSDP Site 606 (central North Atlantic Ocean) cooled suddenly at 3.1 Ma, within the Mammoth paleomagnetic reversed interval. At that time, Globorotalia puncticulata, Neogloboquadrina pachyderma, and Globorotalia crassaformis increased and Globorotalia hirsuta, Globigerinoides sacculifer, and Sphaeroidinellopsis decreased in abundance. Oxygen isotope results for Globigerina bulloides do not indicate a "stepwise" cooling, but probably reflect small changes in continental ice volume. It is hypothesized that as annual average temperatures decreased, G. bulloides delayed its bloom from spring to summer to follow a preferred temperature habitat.
Project(s):
Deep Sea Drilling Project (DSDP)
Coverage:
Latitude: 37.338450 * Longitude: -35.500050
Date/Time Start: 1983-07-02T00:00:00 * Date/Time End: 1983-07-02T00:00:00
Minimum DEPTH, sediment/rock: 102.25 m * Maximum DEPTH, sediment/rock: 106.75 m
Event(s):
94-606_Site * Latitude: 37.338450 * Longitude: -35.500050 * Date/Time: 1983-07-02T00:00:00 * Penetration: 3.441 m * Recovery: 3.104 m * Location: North Atlantic/FLANK * Campaign: Leg94 * Basis: Glomar Challenger * Method/Device: Composite Core (COMPCORE) * Comment: 37 cores; 344.1 m cored; 0 m drilled; 90.2% recovery
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | DEPTH, sediment/rock | Depth sed | m | Geocode – mbsf | ||
| 2 | Fragmentation index, planktic foraminifera | Fragm plankt foram | % | Ehrmann, Lisa M | Counting >180 µm fraction | |
| 3 | Foraminifera, benthic/planktic ratio | Foram benth/plankt | Ehrmann, Lisa M | Counting >180 µm fraction | whole planktonic foraminifers | |
| 4 | Globigerina woodi | G. woodi | % | Ehrmann, Lisa M | Counting >180 µm fraction | |
| 5 | Globigerina bulloides | G. bulloides | % | Ehrmann, Lisa M | Counting >180 µm fraction | |
| 6 | Globorotalia puncticulata | G. puncticulata | % | Ehrmann, Lisa M | Counting >180 µm fraction | |
| 7 | Neogloboquadrina acostaensis | N. acostaensis | % | Ehrmann, Lisa M | Counting >180 µm fraction | |
| 8 | Globorotalia scitula | G. scitula | % | Ehrmann, Lisa M | Counting >180 µm fraction | |
| 9 | Neogloboquadrina pachyderma | N. pachyderma | % | Ehrmann, Lisa M | Counting >180 µm fraction | |
| 10 | Globigerina falconensis | G. falconensis | % | Ehrmann, Lisa M | Counting >180 µm fraction | |
| 11 | Globorotalia hirsuta | G. hirsuta | % | Ehrmann, Lisa M | Counting >180 µm fraction | |
| 12 | Globigerinoides cf. ruber | G. cf. ruber | % | Ehrmann, Lisa M | Counting >180 µm fraction | |
| 13 | Globigerinoides obliquus | G. obliquus | % | Ehrmann, Lisa M | Counting >180 µm fraction | |
| 14 | Globigerinoides sacculifer | G. sacculifer | % | Ehrmann, Lisa M | Counting >180 µm fraction | |
| 15 | Globorotalia menardii | G. menardii | % | Ehrmann, Lisa M | Counting >180 µm fraction | |
| 16 | Sphaeroidinellopsis spp. | Sphaeroidinellopsis spp. | % | Ehrmann, Lisa M | Counting >180 µm fraction | |
| 17 | Globoquadrina altispira | G. altispira | % | Ehrmann, Lisa M | Counting >180 µm fraction | |
| 18 | Orbulina sp. | Orbulina sp. | % | Ehrmann, Lisa M | Counting >180 µm fraction | |
| 19 | Globorotalia crassaformis | G. crassaformis | % | Ehrmann, Lisa M | Counting >180 µm fraction | |
| 20 | Globigerinella aequilateralis | G. aequilateralis | % | Ehrmann, Lisa M | Counting >180 µm fraction | |
| 21 | Globigerinita glutinata | G. glutinata | % | Ehrmann, Lisa M | Counting >180 µm fraction | |
| 22 | Foraminifera, planktic indeterminata | Foram plankt indet | % | Ehrmann, Lisa M | Counting >180 µm fraction | |
| 23 | Foraminifera, planktic | Foram plankt | # | Ehrmann, Lisa M | Counting >180 µm fraction |
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
396 data points