Marino, Maria; Flores, José-Abel (2002): Table T1. Distribution of Eocene to Oligocene calcareous nannofossils, Hole 177-1090B [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.217774, Supplement to: Marino, M; Flores, J-A (2002): Data Report: Calcareous nannofossil data from the Eocene to Oligocene, Leg 177, Hole 1090B. In: Gersonde, R; Hodell, DA; Blum, P (eds.) Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 177, 1-9, https://doi.org/10.2973/odp.proc.sr.177.115.2002
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Abstract:
Hole 1090B is located in the central part of the Subantarctic Zone on the southern flank of the Agulhas Ridge (42°54'S, 8°53'E). Hole 1090B was drilled to 397.5 meters below seafloor (mbsf), and Holocene to middle Eocene sediments were recovered. Core recovery of the Eocene to lower Oligocene interval was generally good, even though sediments were recovered by the extended core barrel (XCB) system (Shipboard Scientific Party, 1999). Because the paleomagnetic signal and nannofossil assemblages are well documented in this interval, Hole 1090B may represent a reference record to improve knowledge of the Eocene-Oligocene transition (Shipboard Scientific Party, 1999, doi:10.2973/odp.proc.ir.177.105.1999).
We analyzed the calcareous nannofossil assemblages of the middle Eocene to lower Oligocene interval, focusing especially on the Eocene-Oligocene transition, with quantitative investigations of nannofossil assemblages.
Project(s):
Ocean Drilling Program (ODP)
Coverage:
Latitude: -42.913700 * Longitude: 8.899700
Date/Time Start: 1997-12-26T15:22:00 * Date/Time End: 1997-12-28T14:55:00
Minimum DEPTH, sediment/rock: 204.40 m * Maximum DEPTH, sediment/rock: 397.59 m
Event(s):
177-1090B * Latitude: -42.913700 * Longitude: 8.899700 * Date/Time Start: 1997-12-26T15:22:00 * Date/Time End: 1997-12-28T14:55:00 * Elevation: -3699.4 m * Penetration: 397.5 m * Recovery: 373.23 m * Location: South Atlantic Ocean * Campaign: Leg177 * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 43 cores; 397.5 m cored; 0 m drilled; 93.9 % recovery
Comment:
Six calcareous nannofossil abundance levels were recorded, as follows: VA = very abundant (>50 specimens per field of view).A = abundant (11-50 specimens per field of view).C = common (1-10 specimens per field of view).F = few (0.1 to <1 specimens per field of view).R = rare (0.02 to <0.1 specimens per field of view).RR = very rare (<0.02 specimens per field of view).Preservation of nannofossils was recorded as good (G), moderate (M), poor (P), and very poor (VP). Some samples were barren (B) of calcareous nannofossils. Reworking phenomena were noted in some Eocene intervals.
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | DEPTH, sediment/rock | Depth sed | m | Geocode | ||
| 2 | Sample code/label | Sample label | Marino, Maria | DSDP/ODP/IODP sample designation | ||
| 3 | Depth, composite | Depth comp | mcd | Marino, Maria | Intercore correlation | |
| 4 | Nannofossil abundance | Nannos abund | Marino, Maria | Abundance estimate | ||
| 5 | Nannofossils preservation | Nannos preserv | Marino, Maria | Abundance estimate | ||
| 6 | Nannofossils, reworked fossil | Nannos rew fossil | Marino, Maria | Abundance estimate | ||
| 7 | Bicolumnus ovatus | B. ovatus | Marino, Maria | Abundance estimate | ||
| 8 | Blackites spp. | Blackites spp. | Marino, Maria | Abundance estimate | ||
| 9 | Braarudosphaera bigelowii | B. bigelowii | Marino, Maria | Abundance estimate | ||
| 10 | Bramletteius serraculoides | B. serraculoides | Marino, Maria | Abundance estimate | ||
| 11 | Cyclicargolithus floridanus | C. floridanus | Marino, Maria | Abundance estimate | C. floridanus (single circular cycles) | |
| 12 | Cyclicargolithus floridanus | C. floridanus | Marino, Maria | Abundance estimate | ||
| 13 | Calcidiscus sp. | Calcidiscus sp. | Marino, Maria | Abundance estimate | ||
| 14 | Chiasmolithus altus | C. altus | Marino, Maria | Abundance estimate | ||
| 15 | Chiasmolithus cf. consuetus | C. cf. consuetus | Marino, Maria | Abundance estimate | ||
| 16 | Chiasmolithus expansus | C. expansus | Marino, Maria | Abundance estimate | ||
| 17 | Chiasmolithus gigas | C. gigas | Marino, Maria | Abundance estimate | ||
| 18 | Chiasmolithus grandis | C. grandis | Marino, Maria | Abundance estimate | ||
| 19 | Chiasmolithus modestus | C. modestus | Marino, Maria | Abundance estimate | Chiasmolithus modestus-nitidus | |
| 20 | Chiasmolithus oamaruensis | C. oamaruensis | Marino, Maria | Abundance estimate | Chiasmolithus oamaruensis-altus | |
| 21 | Chiasmolithus oamaruensis | C. oamaruensis | Marino, Maria | Abundance estimate | ||
| 22 | Chiasmolithus solitus | C. solitus | Marino, Maria | Abundance estimate | ||
| 23 | Chiasmolithus spp. | Chiasmolithus spp. | Marino, Maria | Abundance estimate | Chiasmolithus spp. (total) | |
| 24 | Clausicoccus spp. | Clausicoccus spp. | Marino, Maria | Abundance estimate | Clausicoccus spp. (total) | |
| 25 | Coccolithus pelagicus | C. pelagicus | Marino, Maria | Abundance estimate | ||
| 26 | Coronocyclus sp. | Coronocyclus sp. | Marino, Maria | Abundance estimate | Coronociclus sp. (fairly elliptical) | |
| 27 | Cyclicargolithus abisectus | C. abisectus | Marino, Maria | Abundance estimate | ||
| 28 | Cyclicargolithus sp. | Cyclicargolithus sp. | Marino, Maria | Abundance estimate | Cyclicargolithus sp. (intermediate C. floridanus-R. circus) | |
| 29 | Dictyococcites scrippsae | D. scrippsae | Marino, Maria | Abundance estimate | ||
| 30 | Dictyococcites spp. | Dictyococcites spp. | Marino, Maria | Abundance estimate | Dictyococcites sp. (<4 µm) | |
| 31 | Discoaster barbadiensis | D. barbadiensis | Marino, Maria | Abundance estimate | ||
| 32 | Discoaster bifax | D. bifax | Marino, Maria | Abundance estimate | ||
| 33 | Discoaster binodosus | D. binodosus | Marino, Maria | Abundance estimate | ||
| 34 | Discoaster deflandrei | D. deflandrei | Marino, Maria | Abundance estimate | Discoaster deflandrei gr. | |
| 35 | Discoaster saipanensis | D. saipanensis | Marino, Maria | Abundance estimate | ||
| 36 | Discoaster spp. | Discoaster spp. | Marino, Maria | Abundance estimate | ||
| 37 | Discoaster tanii | D. tanii | Marino, Maria | Abundance estimate | ||
| 38 | Discoaster nodifer | D. nodifer | Marino, Maria | Abundance estimate | ||
| 39 | Discoaster tanii ornatus | D. tanii ornatus | Marino, Maria | Abundance estimate | ||
| 40 | Ericsonia formosa | E. formosa | Marino, Maria | Abundance estimate | ||
| 41 | Ericsonia spp. | Ericsonia spp. | Marino, Maria | Abundance estimate | ||
| 42 | Helicosphaera compacta | H. compacta | Marino, Maria | Abundance estimate | ||
| 43 | Helicosphaera reticulata | H. reticulata | Marino, Maria | Abundance estimate | ||
| 44 | Isthmolithus recurvus | I. recurvus | Marino, Maria | Abundance estimate | ||
| 45 | Markalius cf. nudus | M. cf. nudus | Marino, Maria | Abundance estimate | ||
| 46 | Markalius inversus | M. inversus | Marino, Maria | Abundance estimate | ||
| 47 | Nannotetrina cristata | N. cristata | Marino, Maria | Abundance estimate | ||
| 48 | Nannotetrina fulgens | N. fulgens | Marino, Maria | Abundance estimate | ||
| 49 | Neococcolithes dubius | N. dubius | Marino, Maria | Abundance estimate | ||
| 50 | Pontosphaera multipora | P. multipora | Marino, Maria | Abundance estimate | ||
| 51 | Pontosphaera spp. | Pontosphaera spp. | Marino, Maria | Abundance estimate | ||
| 52 | Pyrocyclus sp. | Pyrocyclus sp. | Marino, Maria | Abundance estimate | ||
| 53 | Reticulofenestra bisecta | R. bisecta | Marino, Maria | Abundance estimate | ||
| 54 | Reticulofenestra circular | R. circular | Marino, Maria | Abundance estimate | Reticulofenestra circular (5-7 µm) | |
| 55 | Reticulofenestra circus | R. circus | Marino, Maria | Abundance estimate | Reticulofenestra circus (8-9 µm) | |
| 56 | Reticulofenestra daviesii | R. daviesii | Marino, Maria | Abundance estimate | Reticulofenestra daviesi gr. | |
| 57 | Reticulofenestra oamaruensis | R. oamaruensis | Marino, Maria | Abundance estimate | ||
| 58 | Reticulofenestra samodurovii | R. samodurovii | Marino, Maria | Abundance estimate | Reticulofenestra samodurovi-hillae | |
| 59 | Reticulofenestra spp. | Reticulofenestra spp. | Marino, Maria | Abundance estimate | Reticulofenestra sp. (<3 µm) | |
| 60 | Reticulofenestra spp. | Reticulofenestra spp. | Marino, Maria | Abundance estimate | Reticulofenestra sp. (3-5 µm) | |
| 61 | Reticulofenestra umbilicus | R. umbilicus | Marino, Maria | Abundance estimate | ||
| 62 | Reticulofestra reticulata | R. reticulata | Marino, Maria | Abundance estimate | ||
| 63 | Rhabdolithus spp. | Rhabdolithus spp. | Marino, Maria | Abundance estimate | ||
| 64 | Sphenolithus spiniger | S. spiniger | Marino, Maria | Abundance estimate | ||
| 65 | Sphenolithus furcatolithoides | S. furcatolithoides | Marino, Maria | Abundance estimate | ||
| 66 | Sphenolithus moriformis | S. moriformis | Marino, Maria | Abundance estimate | ||
| 67 | Sphenolithus obtusus | S. obtusus | Marino, Maria | Abundance estimate | ||
| 68 | Sphenolithus pseudoradians | S. pseudoradians | Marino, Maria | Abundance estimate | ||
| 69 | Sphenolithus radians | S. radians | Marino, Maria | Abundance estimate | ||
| 70 | Sphenolithus spp. | Sphenolithus spp. | Marino, Maria | Abundance estimate | Sphenolithus spp. (total) | |
| 71 | Thoracosphaera sp. | Thoracosphaera sp. | Marino, Maria | Abundance estimate | ||
| 72 | Transversopontis obliquipons | T. obliquipons | Marino, Maria | Abundance estimate | ||
| 73 | Transversopontis sigmoidalis | T. sigmoidalis | Marino, Maria | Abundance estimate | ||
| 74 | Zygrhablithus bijugatus | Z. bijugatus | Marino, Maria | Abundance estimate | ||
| 75 | Biozone | Biozone | Marino, Maria | |||
| 76 | Age, comment | Comm | Marino, Maria | |||
| 77 | Nannotetrina spp. | Nannotetrina spp. | Marino, Maria | Abundance estimate |
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
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