Saavedra-Pellitero, Mariem; Oskar, Mitrovic; Baumann, Karl-Heinz; Malinverno, Elisa: Morphometric lengths analysis of Reticulofenestra from IODP Site 383-U1541 [dataset]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.993567 (dataset in review)
Abstract:
This study presents a comprehensive morphometric analysis of Reticulofenestra coccoliths from Late Miocene to Pleistocene sediments from International Ocean Discovery Program (IODP) Site U1541, drilled in the Pacific sector of the Southern Ocean during Expedition 383 (in 2019). Twenty samples were taken during the sampling party in College Station, Texas (USA) in 2020 ranging from the Late Miocene to Pleistocene, prepared and examined (in 2024) under a LEICA EZ4 W petrographic microscope at 1000x magnification.
Coccolith width and length were measured in light microscope on 2000 moderately- to well-preserved Reticulofenestra specimens, which were divided into four different size groups: R. minuta (<3 µm), R. minutula/R. haqii (3–5 µm), small R. pseudoumbilicus (5–7 µm), and large R. pseudoumbilicus (>7 µm). Age model is based on benthic foraminifera δ18O data according to Middleton et al. (2024, doi:10.5194/gchron-6-125-2024) for the uppermost 85 m core composite depth below seafloor (CCSF) of the shipboard splice, and to Winckler et al. (2021, doi:10.14379/iodp.proc.383.105.2021) for the rest (below 85 m CCSF).
Supplement to:
Saavedra-Pellitero, Mariem; Oskar, Mitrovic; Baumann, Karl-Heinz; Malinverno, Elisa (in review): Morphometric analysis of Reticulofenestra across the Late Miocene-Pleistocene in the Pacific sector of the Southern Ocean. Journal of Nannoplankton Research
References:
Middleton, Jennifer L; Gottschalk, Julia; Winckler, Gisela; Hanley, Jean; Knudson, Carol; Farmer, Jesse R; Lamy, Frank; Lisiecki, Lorraine E; Expedition 383 Scientists (2024): Evaluating manual versus automated benthic foraminiferal δ 18 O alignment techniques for developing chronostratigraphies in marine sediment records. Geochronology (GChron), 6(2), 125-145, https://doi.org/10.5194/gchron-6-125-2024
Winckler, Gisela; Lamy, Frank; Alvarez Zarikian, Carlos A; Arz, Helge Wolfgang; Basak, Chandranath; Brombacher, Anieke; Esper, Oliver; Farmer, Jesse R; Gottschalk, Julia; Herbert, Lisa C; Iwasaki, Shinya; Lawson, Vera J; Lembke-Jene, Lester; Lo, Li; Malinverno, Elisa; Michel, Elisabeth; Middleton, Jennifer L; Moretti, Simone; Moy, Christopher M; Ravelo, Ana Christina; Riesselman, Christina R; Saavedra-Pellitero, Mariem; Seo, Inah; Singh, Raj K; Smith, Rebecca; Souza, Alexandre L; Stoner, Joseph S; Venancio, Igor Martins; Wan, Sui; Zhao, Xiangyu; Foucher McColl, Naoma (2021): Site U1541. In: Lamy, F, Winckler, G, Alvarez Zarikian, CA, Expedition 383 Scientists (ed.), Volume 383: Dynamics of the Pacific Antarctic Circumpolar Current (DYNAPACC), Proceedings of the International Ocean Discovery Program, 383, International Ocean Discovery Program, https://doi.org/10.14379/iodp.proc.383.105.2021
Funding:
Natural Environment Research Council (NERC), grant/award no. NE/T009489/1: Pleistocene-Holocene Southern Ocean coccolithophore calcification and productivity
Coverage:
Median Latitude: -54.212599 * Median Longitude: -125.425599 * South-bound Latitude: -54.212610 * West-bound Longitude: -125.425718 * North-bound Latitude: -54.212588 * East-bound Longitude: -125.425480
Date/Time Start: 2019-06-18T03:00:00 * Date/Time End: 2019-06-20T05:00:00
Minimum Elevation: -3604.0 m * Maximum Elevation: -3603.0 m
Event(s):
383-U1541B * Latitude: -54.212588 * Longitude: -125.425718 * Date/Time Start: 2019-06-18T03:00:00 * Date/Time End: 2019-06-19T04:00:00 * Elevation: -3604.0 m * Penetration: 138.5 * Recovery: 129.27 * Campaign: Exp383 * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL)
383-U1541C * Latitude: -54.212610 * Longitude: -125.425480 * Date/Time Start: 2019-06-19T04:00:00 * Date/Time End: 2019-06-20T05:00:00 * Elevation: -3603.0 m * Penetration: 118.1 * Recovery: 100.37 * Campaign: Exp383 * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL)
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Event label | Event | Saavedra-Pellitero, Mariem | |||
| 2 | Campaign of event | Campaign | Saavedra-Pellitero, Mariem | |||
| 3 | Latitude of event | Latitude | Saavedra-Pellitero, Mariem | |||
| 4 | Longitude of event | Longitude | Saavedra-Pellitero, Mariem | |||
| 5 | Date/Time of event | Date/Time | Saavedra-Pellitero, Mariem | |||
| 6 | Elevation of event | Elevation | m | Saavedra-Pellitero, Mariem | ||
| 7 | Method/Device of event | Method/Device | Saavedra-Pellitero, Mariem | |||
| 8 | Area/locality | Area | Saavedra-Pellitero, Mariem | |||
| 9 | Principal investigator | PI | Saavedra-Pellitero, Mariem | |||
| 10 | Sample code/label | Sample label | Saavedra-Pellitero, Mariem | DSDP/ODP/IODP sample designation | ||
| 11 | Sample comment | Sample comment | Saavedra-Pellitero, Mariem | |||
| 12 | Age | Age | Ma | Saavedra-Pellitero, Mariem | Age, benthic δ18O stratigraphy | |
| 13 | AGE | Age | ka BP | Saavedra-Pellitero, Mariem | Age, benthic δ18O stratigraphy | Geocode |
| 14 | Reticulofenestra spp., length | Reticulofenestra spp. l | µm | Saavedra-Pellitero, Mariem | Stereo microscope, Leica Microsystems, EZ4 W [×1000 magnification] | |
| 15 | Reticulofenestra spp., width | Reticulofenestra spp. w | µm | Saavedra-Pellitero, Mariem | Stereo microscope, Leica Microsystems, EZ4 W [×1000 magnification] |
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:
14000 data points
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