Álvarez, María-Carmen; Pérez-Cruz, Ligia; Urrutia-Fucugauchi, Jaime; Aldama-Cervantes, Alejandro; Velázquez Aguilar, Mauricio; Saavedra-Pellitero, Mariem: Coccolithophores abundance at IODP Hole 385-U1549A in Guaymas Basin, Gulf of California [dataset]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.971927 (dataset in review)
Abstract:
The sedimentary samples studied came from cores of Hole 385-U1549A (27° 28.33167' N, 111° 28.7844' W) obtained during the International Ocean Discovery Program (IODP) Expedition 385 "Guaymas Basin and Tectonics" during September-November 2019 aboard the drilling platform "JOIDES Resolution". For this work, we studied samples from the first 40 m of Hole 385-U1549A.
The Hole 385-U1549A coccolith assemblage is mainly represented by 18 taxa of which the members of Gephyrocapsa group with size >3 µm (Gephyrocapsa oceanica and Gephyrocapsa muellerae) is the dominant taxa of the assemblage with a relative abundance above 50 %. The members of the group of Gephyrocapsa with size <3 µm (Gephyrocapsa ericsonii and Gephyrocapsa aperta) shows values around 30 %. Emiliania huxleyi and Florisphaera profunda show values around 3 %. The relative abundances of the other taxa are significantly lower including Coccolithus pelagicus, Helicosphaera carteri, Syracosphaera spp., Calcidiscus leptoporus, Umbilicosphaera spp.
Supplement to:
Álvarez, María-Carmen; Pérez-Cruz, Ligia; Urrutia-Fucugauchi, Jaime; Aldama-Cervantes, Alejandro; Velázquez Aguilar, Mauricio; Saavedra-Pellitero, Mariem; Díaz-Flores, Miguel-Ángel (submitted): Tracking Coccolithophore Productivity Trends Over the Last 22,000 Years: Insights from IODP Expedition 385 Sediments in a Highly
Productive Oceanic Basin (Guaymas Basin). Marine Geology
Project(s):
Funding:
Consejo Nacional de Humanidades, Ciencias y Tecnologías (CONAHCYT), grant/award no. 348787: Estancias Posdoctorales por México 2022(1) - Modalidad Académica
Coverage:
Latitude: 27.472200 * Longitude: -111.479700
Date/Time Start: 2019-10-25T00:30:00 * Date/Time End: 2019-10-25T22:15:00
Minimum DEPTH, sediment/rock: 0.000 m * Maximum DEPTH, sediment/rock: 40.397 m
Event(s):
385-U1549A * Latitude: 27.472200 * Longitude: -111.479700 * Date/Time Start: 2019-10-25T00:30:00 * Date/Time End: 2019-10-25T22:15:00 * Elevation: -1842.1 m * Number of cores: 18 * Penetration: 168 m * Recovery: 99.34 % * Campaign: Exp385 * Basis: Joides Resolution * Method/Device: Advanced piston corer
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Sample code/label | Sample label | Álvarez, María-Carmen | DSDP/ODP/IODP sample designation | ||
| 2 | Reference sample | Ref sample | # | Álvarez, María-Carmen | ||
| 3 | Sample ID | Sample ID | Álvarez, María-Carmen | |||
| 4 | DEPTH, sediment/rock | Depth sed | m | Álvarez, María-Carmen | IODP Depth Scale Terminology | Geocode – CSF-B |
| 5 | AGE | Age | ka BP | Álvarez, María-Carmen | Age, radiocarbon | Geocode – Radiocarbon ages were converted to calendar years using R statistical software version 4.2.2 (R Core Team, 2021) and the Bacon library, applying Bayesian statistics with the Marine20 calibration curve. Corrections for 14C-AMS ages were made using a reservoir age of 301±50 years (∆R) (Goodfriend and Flessa, 1997). |
| 6 | Gephyrocapsa spp. | Gephyrocapsa spp. | # | Álvarez, María-Carmen | Cross-polarizing light microscope, Zeiss, Axiolab A1 [x1000] | Species were classified according to Nannotax 3: https://www.mikrotax.org/Nannotax3/ |
| 7 | Gephyrocapsa spp., small | Gephyrocapsa spp. small | # | Álvarez, María-Carmen | Cross-polarizing light microscope, Zeiss, Axiolab A1 [x1000] | Species were classified according to Nannotax 3: https://www.mikrotax.org/Nannotax3/ |
| 8 | Emiliania huxleyi | E. huxleyi | # | Álvarez, María-Carmen | Cross-polarizing light microscope, Zeiss, Axiolab A1 [x1000] | Species were classified according to Nannotax 3: https://www.mikrotax.org/Nannotax3/ |
| 9 | Pseudoemiliania lacunosa | P. lacunosa | # | Álvarez, María-Carmen | Cross-polarizing light microscope, Zeiss, Axiolab A1 [x1000] | Species were classified according to Nannotax 3: https://www.mikrotax.org/Nannotax3/ |
| 10 | Florisphaera profunda | F. profunda | # | Álvarez, María-Carmen | Cross-polarizing light microscope, Zeiss, Axiolab A1 [x1000] | Species were classified according to Nannotax 3: https://www.mikrotax.org/Nannotax3/ |
| 11 | Florisphaera profunda var. elongata | F. profunda var. elongata | # | Álvarez, María-Carmen | Cross-polarizing light microscope, Zeiss, Axiolab A1 [x1000] | Species were classified according to Nannotax 3: https://www.mikrotax.org/Nannotax3/ |
| 12 | Coccolithus pelagicus ssp. braarudii | C. pelagicus ssp. braarudii | # | Álvarez, María-Carmen | Cross-polarizing light microscope, Zeiss, Axiolab A1 [x1000] | Species were classified according to Nannotax 3: https://www.mikrotax.org/Nannotax3/ |
| 13 | Calcidiscus leptoporus | C. leptoporus | # | Álvarez, María-Carmen | Cross-polarizing light microscope, Zeiss, Axiolab A1 [x1000] | Species were classified according to Nannotax 3: https://www.mikrotax.org/Nannotax3/ |
| 14 | Helicosphaera carteri | H. carteri | # | Álvarez, María-Carmen | Cross-polarizing light microscope, Zeiss, Axiolab A1 [x1000] | Species were classified according to Nannotax 3: https://www.mikrotax.org/Nannotax3/ |
| 15 | Helicosphaera wallichii | H. wallichii | # | Álvarez, María-Carmen | Cross-polarizing light microscope, Zeiss, Axiolab A1 [x1000] | Species were classified according to Nannotax 3: https://www.mikrotax.org/Nannotax3/ |
| 16 | Syracosphaera sp. | Syracosphaera sp. | # | Álvarez, María-Carmen | Cross-polarizing light microscope, Zeiss, Axiolab A1 [x1000] | Species were classified according to Nannotax 3: https://www.mikrotax.org/Nannotax3/ |
| 17 | Umbilicosphaera sibogae | U. sibogae | # | Álvarez, María-Carmen | Cross-polarizing light microscope, Zeiss, Axiolab A1 [x1000] | Species were classified according to Nannotax 3: https://www.mikrotax.org/Nannotax3/ |
| 18 | Rhabdosphaera clavigera | R. clavigera | # | Álvarez, María-Carmen | Cross-polarizing light microscope, Zeiss, Axiolab A1 [x1000] | Species were classified according to Nannotax 3: https://www.mikrotax.org/Nannotax3/ |
| 19 | Rhabdosphaera gracilenta | R. gracilenta | # | Álvarez, María-Carmen | Cross-polarizing light microscope, Zeiss, Axiolab A1 [x1000] | Species were classified according to Nannotax 3: https://www.mikrotax.org/Nannotax3/ |
| 20 | Pontosphaera sp. | Pontosphaera sp. | # | Álvarez, María-Carmen | Cross-polarizing light microscope, Zeiss, Axiolab A1 [x1000] | Species were classified according to Nannotax 3: https://www.mikrotax.org/Nannotax3/ |
| 21 | Umbellosphaera sp. | Umbellosphaera sp. | # | Álvarez, María-Carmen | Cross-polarizing light microscope, Zeiss, Axiolab A1 [x1000] | Species were classified according to Nannotax 3: https://www.mikrotax.org/Nannotax3/ |
| 22 | Calciosolenia sp. | Calciosolenia sp. | # | Álvarez, María-Carmen | Cross-polarizing light microscope, Zeiss, Axiolab A1 [x1000] | Species were classified according to Nannotax 3: https://www.mikrotax.org/Nannotax3/ |
| 23 | Gephyrocapsa caribbeanica | G. caribbeanica | # | Álvarez, María-Carmen | Cross-polarizing light microscope, Zeiss, Axiolab A1 [x1000] | Species were classified according to Nannotax 3: https://www.mikrotax.org/Nannotax3/ |
| 24 | Total counts | Total counts | # | Álvarez, María-Carmen | Relative abundance (counted and calculated) | |
| 25 | Number | No | Álvarez, María-Carmen | VISUAL FIELDS | ||
| 26 | Ratio | Ratio | Álvarez, María-Carmen | Calculated | coccoliths/cv | |
| 27 | Gephyrocapsa spp. | Gephyrocapsa spp. | % | Álvarez, María-Carmen | Relative abundance (calculated) | Gephyrocapsa oceanica and Gephyrocapsa muellerae |
| 28 | Gephyrocapsa spp., small | Gephyrocapsa spp. small | % | Álvarez, María-Carmen | Relative abundance (calculated) | Gephyrocapsa ericsonii and Gephyrocapsa aperta |
| 29 | Emiliania huxleyi | E. huxleyi | % | Álvarez, María-Carmen | Relative abundance (calculated) | |
| 30 | Pseudoemiliania lacunosa | P. lacunosa | % | Álvarez, María-Carmen | Relative abundance (calculated) | |
| 31 | Florisphaera profunda | F. profunda | % | Álvarez, María-Carmen | Relative abundance (calculated) | |
| 32 | Florisphaera profunda var. elongata | F. profunda var. elongata | % | Álvarez, María-Carmen | Relative abundance (calculated) | |
| 33 | Coccolithus pelagicus ssp. braarudii | C. pelagicus ssp. braarudii | % | Álvarez, María-Carmen | Relative abundance (calculated) | |
| 34 | Calcidiscus leptoporus | C. leptoporus | % | Álvarez, María-Carmen | Relative abundance (calculated) | |
| 35 | Helicosphaera carteri | H. carteri | % | Álvarez, María-Carmen | Relative abundance (calculated) | |
| 36 | Helicosphaera wallichii | H. wallichii | % | Álvarez, María-Carmen | Relative abundance (calculated) | |
| 37 | Syracosphaera sp. | Syracosphaera sp. | % | Álvarez, María-Carmen | Relative abundance (calculated) | |
| 38 | Umbilicosphaera sibogae | U. sibogae | % | Álvarez, María-Carmen | Relative abundance (calculated) | |
| 39 | Rhabdosphaera clavigera | R. clavigera | % | Álvarez, María-Carmen | Relative abundance (calculated) | |
| 40 | Rhabdosphaera gracilenta | R. gracilenta | % | Álvarez, María-Carmen | Relative abundance (calculated) | |
| 41 | Pontosphaera sp. | Pontosphaera sp. | % | Álvarez, María-Carmen | Relative abundance (calculated) | |
| 42 | Umbellosphaera sp. | Umbellosphaera sp. | % | Álvarez, María-Carmen | Relative abundance (calculated) | |
| 43 | Calciosolenia sp. | Calciosolenia sp. | % | Álvarez, María-Carmen | Relative abundance (calculated) | |
| 44 | Gephyrocapsa caribbeanica | G. caribbeanica | % | Álvarez, María-Carmen | Relative abundance (calculated) | |
| 45 | Elements, total | Total | % | Álvarez, María-Carmen | Relative abundance (calculated) |
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:
2580 data points
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