De Entrambasaguas, Julia; Westerhold, Thomas; Jones, Heather; Alegret, Laia: Calcareous nannofossil biostratigraphic terms of ODP Site 171-1053 [dataset]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.965566 (dataset in review), In: De Entrambasaguas, J et al.: Stable isotopes of benthic foraminifera and calcareous nannofossils from ODP Site 171-1053 [dataset bundled publication]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.965594 (dataset in review)
Abstract:
This dataset contains the semiquantitative data relative to the calcareous nannofossil assemblages from a subset of 26 samples from ODP Site 1053 core 8, Section 5. Samples span 74.54 to 75.20 m in composite depth, with a sample resolution that ranges from 1 to 10 cm. Data was collected From January to April 2023 and span a 1 M.y. long late Eocene Interval, Priabonian in age, that corresponds to the CNE19 nannofossil zone of the Priabonian (ca. 36 Ma; Agnini et al., 2014; Raffi et al., 2016). The samples from which the calcareous nannofossil assemblages were obtained were collected from ODP Site 1053, in the Blake Nose, NW Atlantic Ocean. This dataset has a regional resolution. Following previous results on bulk carbon and Oxygen stable isotopes, data was collected to further investigate the Blake Nose's regional paleoceanography during the Late Eocene. Nannofossil smear slides were prepared and examined using an Olympus BX51 polarizing microscope at the MARUM – Center for Marine Environmental Sciences (University of Bremen). Biostratigraphic analyses were conducted at low (600x) magnification along two long transects of each slide to ensure that rare, biostratigraphically significant taxa were not overlooked. For qualitative assemblage analyses, ten fields of view (FOV) from a representative area of each slide were examined at higher (1000x) magnification. The individual abundance of each species within a sample was then estimated as follows:
C: At least one specimen present in every FOV
Fr: One specimen present in 6 to 9 of the FOV
F: One specimen present in 2 to 5 of the FOV
R: Specimen only present in one of the FOV
VR: 5 or less specimens observed within the whole sample (used for the taxa that were only observed while conducting biostratigraphic analyses).
Project(s):
Ocean Drilling Program (ODP)
Funding:
German Research Foundation (DFG), grant/award no. 320221997: New high-resolution compilation of benthic stable isotope data spanning 34 to 75 Ma - for both Atlantic and Pacific Ocean
German Research Foundation (DFG), grant/award no. 390741603: EXC 2077: The Ocean Floor – Earth's Uncharted Interface
Ministry of Economy, Industry and Competitiveness (MINECO), grant/award no. PID2019-105537RB-I00: MCIN/AEI/ 10.13039/501100011033 and ERDF A way of making Europe
Coverage:
Latitude: 29.992285 * Longitude: -76.523535
Date/Time Start: 1997-02-06T20:30:00 * Date/Time End: 1997-02-07T18:20:00
Minimum DEPTH, sediment/rock: 66.9800 m * Maximum DEPTH, sediment/rock: 67.6500 m
Event(s):
171-1053A * Latitude: 29.992270 * Longitude: -76.523520 * Date/Time: 1997-02-06T20:30:00 * Elevation: -1629.5 m * Penetration: 183.2 m * Recovery: 189.5 m * Location: Carolina Slope, North Atlantic Ocean * Campaign: Leg171B * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 20 cores; 183.2 m cored; 0 m drilled; 103.4 % recovery
171-1053B * Latitude: 29.992300 * Longitude: -76.523550 * Date/Time: 1997-02-07T18:20:00 * Elevation: -1630.3 m * Penetration: 182.4 m * Recovery: 170.11 m * Location: Carolina Slope, North Atlantic Ocean * Campaign: Leg171B * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 20 cores; 182.4 m cored; 0 m drilled; 93.3 % recovery
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Event label | Event | De Entrambasaguas, Julia | |||
| 2 | Sample code/label | Sample label | De Entrambasaguas, Julia | |||
| 3 | Sample number | Sample no | De Entrambasaguas, Julia | |||
| 4 | DEPTH, sediment/rock | Depth sed | m | De Entrambasaguas, Julia | Geocode – mbsf | |
| 5 | Cyclicargolithus floridanus | C. floridanus | De Entrambasaguas, Julia | Smear slide analysis | ||
| 6 | Reticulofenestra minuta | R. minuta | De Entrambasaguas, Julia | Smear slide analysis | ||
| 7 | Reticulofenestra dictyoda | R. dictyoda | De Entrambasaguas, Julia | Smear slide analysis | ||
| 8 | Reticulofenestra umbilicus | R. umbilicus | De Entrambasaguas, Julia | Smear slide analysis | ||
| 9 | Reticulofenestra reticulata | R. reticulata | De Entrambasaguas, Julia | Smear slide analysis | ||
| 10 | Reticulofenestra erbae | R. erbae | De Entrambasaguas, Julia | Smear slide analysis | ||
| 11 | Reticulofenestra isabellae | R. isabellae | De Entrambasaguas, Julia | Smear slide analysis | ||
| 12 | Reticulofenestra lockeri | R. lockeri | De Entrambasaguas, Julia | Smear slide analysis | ||
| 13 | Reticulofenestra bisecta | R. bisecta | De Entrambasaguas, Julia | Smear slide analysis | ||
| 14 | Coccolithus pelagicus | C. pelagicus | De Entrambasaguas, Julia | Smear slide analysis | ||
| 15 | Coccolithus eopelagicus | C. eopelagicus | De Entrambasaguas, Julia | Smear slide analysis | ||
| 16 | Coccolithus biparteoperculatus | C. biparteoperculatus | De Entrambasaguas, Julia | Smear slide analysis | ||
| 17 | Coccolithus formosus | C. formosus | De Entrambasaguas, Julia | Smear slide analysis | ||
| 18 | Ericksonia orbis | E. orbis | De Entrambasaguas, Julia | Smear slide analysis | ||
| 19 | Bramletteius serraculoides | B. serraculoides | De Entrambasaguas, Julia | Smear slide analysis | ||
| 20 | Clausicoccus subdistichus | C. subdistichus | De Entrambasaguas, Julia | Smear slide analysis | ||
| 21 | Cruciplacolithus spp. | Cruciplacolithus spp. | De Entrambasaguas, Julia | Smear slide analysis | ||
| 22 | Chiasmolithus spp. | Chiasmolithus spp. | De Entrambasaguas, Julia | Smear slide analysis | ||
| 23 | Coronocyclus spp. | Coronocyclus spp. | De Entrambasaguas, Julia | Smear slide analysis | ||
| 24 | Blackites spp. | Blackites spp. | De Entrambasaguas, Julia | Smear slide analysis | ||
| 25 | Umbilicosphaera protoannulus | U. protoannulus | De Entrambasaguas, Julia | Smear slide analysis | ||
| 26 | Umbilicosphaera bramlettei | U. bramlettei | De Entrambasaguas, Julia | Smear slide analysis | ||
| 27 | Umbilicosphaera detecta | U. detecta | De Entrambasaguas, Julia | Smear slide analysis | ||
| 28 | Discoaster barbadiensis | D. barbadiensis | De Entrambasaguas, Julia | Smear slide analysis | ||
| 29 | Discoaster tanii | D. tanii | De Entrambasaguas, Julia | Smear slide analysis | ||
| 30 | Discoaster | Discoaster | De Entrambasaguas, Julia | Smear slide analysis | 6-rayed | |
| 31 | Discoaster williamsii | D. williamsii | De Entrambasaguas, Julia | Smear slide analysis | ||
| 32 | Discoaster tanii ornatus | D. tanii ornatus | De Entrambasaguas, Julia | Smear slide analysis | ||
| 33 | Discoaster deflandrei | D. deflandrei | De Entrambasaguas, Julia | Smear slide analysis | ||
| 34 | Discoaster saipanensis | D. saipanensis | De Entrambasaguas, Julia | Smear slide analysis | ||
| 35 | Sphenolithus apoxis | S. apoxis | De Entrambasaguas, Julia | Smear slide analysis | ||
| 36 | Sphenolithus moriformis | S. moriformis | De Entrambasaguas, Julia | Smear slide analysis | ||
| 37 | Sphenolithus pseudoradians | S. pseudoradians | De Entrambasaguas, Julia | Smear slide analysis | ||
| 38 | Furcatolithus predistentus | F. predistentus | De Entrambasaguas, Julia | Smear slide analysis | ||
| 39 | Helicosphaera | Helicosphaera | De Entrambasaguas, Julia | Smear slide analysis | ||
| 40 | Pontosphaera | Pontosphaera | De Entrambasaguas, Julia | Smear slide analysis | ||
| 41 | Isthmolithus recurvus | I. recurvus | De Entrambasaguas, Julia | Smear slide analysis | ||
| 42 | Braarudosphaera spp. | Braarudosphaera spp. | De Entrambasaguas, Julia | Smear slide analysis | ||
| 43 | Pemma spp. | Pemma spp. | De Entrambasaguas, Julia | Smear slide analysis | ||
| 44 | Micrantholithus spp. | Micrantholithus spp. | De Entrambasaguas, Julia | Smear slide analysis | ||
| 45 | Hexadelus | Hexadelus | De Entrambasaguas, Julia | Smear slide analysis | ||
| 46 | Zygrhablithus bijugatus | Z. bijugatus | De Entrambasaguas, Julia | Smear slide analysis | ||
| 47 | Pedinocyclus larvalis | P. larvalis | De Entrambasaguas, Julia | Smear slide analysis | ||
| 48 | Calcispheres | Calcispheres | De Entrambasaguas, Julia | Smear slide analysis | ||
| 49 | Holococcoliths | Holococcoliths | De Entrambasaguas, Julia | Smear slide analysis | ||
| 50 | Rhabdosphaera | Rhabdosphaera | De Entrambasaguas, Julia | Smear slide analysis | ? | |
| 51 | Nannofossils, reworked cretaceous | Nannos rew cret | De Entrambasaguas, Julia | Smear slide analysis | ||
| 52 | Nannofossils, reworked fossil | Nannos rew fossil | De Entrambasaguas, Julia | Smear slide analysis | Palecoene/early Eocene | |
| 53 | Markalius spp. | Markalius spp. | De Entrambasaguas, Julia | Smear slide analysis |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0) (License comes into effect after moratorium ends)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
1202 data points