Maddison, Eleanor J; Pike, Jennifer; Dunbar, Robert G (2012): (Table 4) Description of visually conspicuous diatom species in laminae of sediment core MD03-2597 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.806335, In supplement to: Maddison, EJ et al. (2012): Seasonally laminated diatom-rich sediments from Dumont d'Urville Trough, East Antarctic Margin: Late-Holocene Neoglacial sea-ice conditions. The Holocene, 22(8), 857-875, https://doi.org/10.1177/0959683611434223
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Coverage:
Latitude: -66.412300 * Longitude: 140.421000
Date/Time Start: 2003-02-05T13:04:00 * Date/Time End: 2003-02-05T13:04:00
Minimum Elevation: -1025.0 m * Maximum Elevation: -1025.0 m
Event(s):
MD03-2597 (MD032597) * Latitude: -66.412300 * Longitude: 140.421000 * Date/Time: 2003-02-05T13:04:00 * Elevation: -1025.0 m * Recovery: 58 m * Location: Southern Ocean * Campaign: MD130 (IMAGES X - CADO) * Basis: Marion Dufresne (1995) * Method/Device: Calypso Corer (CALYPSO)
Comment:
RS: resting spores; CRS: Hyalochaete Chaetoceros spp. resting spores; veg: vegetative. BSEI = backscattered electron imagery and SEI = secondary electron imagery scanning electron microscopy.
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Lamina type | Lamina type | Maddison, Eleanor J | Scanning electron microscope (SEM) | ||
| 2 | Diatom species | Diatom species | Maddison, Eleanor J | 5-1%, CRS-free count | ||
| 3 | Diatom species | Diatom species | Maddison, Eleanor J | 15-5%, CRS-free count | ||
| 4 | Diatom species | Diatom species | Maddison, Eleanor J | >15%, CRS-free count | ||
| 5 | Diatom species | Diatom species | Maddison, Eleanor J | >20%, total count | ||
| 6 | Diatom species | Diatom species | Maddison, Eleanor J | Scanning electron microscope (SEM) | visually sub-dominant genera / species, BSEI&SEI | |
| 7 | Diatom species | Diatom species | Maddison, Eleanor J | Scanning electron microscope (SEM) | visually dominant genera / species, BSEI&SEI |
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
70 data points
Data
| 1 Lamina type | 2 Diatom species (5-1%, CRS-free count) | 3 Diatom species (15-5%, CRS-free count) | 4 Diatom species (>15%, CRS-free count) | 5 Diatom species (>20%, total count) | 6 Diatom species (visually sub-dominant genera ...) | 7 Diatom species (visually dominant genera / sp...) |
|---|---|---|---|---|---|---|
| Al: Laminae characterised by CRS | Fragilariopsis sublinearis, F. ritscheri, Porosira glacialis RS, Thalassiosira poroseriata, T. lentiginosa, T. gracilis var. gracilis, Eucampia antarctica | Fragilariopsis rhombica, Phaeoceros Chaetoceros spp., F. kerguelensis, F. cylindrus | Fragilariopsis curta (34.9%) | CRS (50.6%), Fragilariopsis spp. (38.4%) | Fragilariopsis spp., Corethron pennatum, Porosira glacialis RS | CRS |
| A2: Laminae characterised by CRS and Fragilariopsis spp. | Fragilariopsis ritscheri, Porosira glacialis RS, F. sublinearis, Thalassiosira gracilis var. gracilis, Corethron pennatum, T. lentiginosa, T. poroseriata | Fragilariopsis cylindrus, Phaeoceros Chaetoceros spp., F. rhombica, F. kerguelensis | Fragilariopsis curta (34.6%) | CRS (43.2 %), Fragilariopsis spp. (42.3 %) | Corethron pennatum, Porosira glacialis RS | CRS Fragilariopsis spp. |
| A3: Laminae characterised by Fragilariopsis spp. | Fragilariopsis kerguelensis, F. ritscheri, Eucampia antarctica, Porosira glacialis RS, Thalassiosira gracilis var. gracilis | Fragilariopsis rhombica, Phaeoceros Chaetoceros spp. | Fragilariopsis curta (29.4%) F. cylindrus (26.2%) | Fragilariopsis spp. (63.4%) CRS (22.4%) | CRS, Eucampia antarctica, Porosira glacialis RS, Corethron pennatum | Fragilariopsis spp. |
| Bl: Laminae characterised by Rhizosolenia spp. and Corethron pennatum | Fragilariopsis sublinearis, veg Hyalochaete Chaetoceros spp., Pseudo-nitzschia turgidula, Thalassiosira lentiginosa, Porosira glacialis RS, Thalassiosira antarctica RS, F. separanda, Corethron pennatum, F. obliquecostata | Fragilariopsis cylindrus, F. rhombica, Phaeoceros Chaetoceros spp., F. ritscheri, F. kerguelensis, Rhizosolenia spp., Eucampia antarctica | Fragilariopsis curta (18.6%) | CRS (40.5%) Fragilariopsis spp. (37.3%) | CRS, Fragilariopsis spp., Phaeoceros Chaetoceros spp., Eucampia antarctica, Porosira glacialis RS | Rhizosolenia spp. Corethron pennatum |
| B2: Laminae characterised by Corethron pennatum | Fragilariopsis ritscheri, Phaeoceros Chaetoceros spp., Thalassiosira lentiginosa, F. sublinearis, Porosira glacialis RS, Corethron pennatum, Pseudo-nitzschia turgidula, T. gracilis var. gracilis, Rhizosolenia spp. | Fragilariopsis rhombica, F. kerguelensis | Fragilariopsis curta (28.2 %) F. cylindrus (28.0%) | Fragilariopsis spp. (56.2%) CRS (29.9%) | CRS, Fragilariopsis spp., Phaeoceros Chaetoceros spp., Porosira glacialis RS, Rhizosolenia spp. | Corethron pennatum |
| B3: Laminae characterised by Rhizosolenia spp. | Fragilariopsis kerguelensis, Pseudo-nitzschia turgidula, veg Hyalochaete Chaetoceros spp., Phaeoceros Chaetoceros spp., F. sublinearis, F. ritscheri | Proboscia inermis, Fragilariopsis rhombica | Fragilariopsis cylindrus (33.2%) F. curta (20.3 %) | Fragilariopsis spp. (56.1%) CRS (21.1%) | CRS, Fragilariopsis spp., Corethron pennatum | Rhizosolenia spp. |
| C(B): Mixed diatom assemblage laminae | Phaeoceros Chaetoceros spp., Fragilariopsis ritscheri, F. sublinearis,Thalassiosira lentiginosa,T. gracilis v. gracilis, Eucampia antarctica, Pseudo-nitzschia turgidula, veg Hyalochaete Chaetoceros spp. | Fragilariopsis cylindrus, F. rhombica, F. kerguelensis | Fragilariopsis curta (41.1%) | CRS (43.0%) Fragilariopsis spp. (46.4%) | Porosira glacialis RS, Corethron pennatum, Stellarima microtrias RS | CRS Fragilariopsis spp. |
| C(T): Mixed diatom assemblage laminae | Porosira glacialis RS, Phaeoceros Chaetoceros spp., Fragilariopsis ritscheri, veg Hyalochaete Chaetoceros spp., F. sublinearis, Eucampia antarctica, Thalassiosira lentiginosa, T. poroseriata, Rhizosolenia spp., T. gracilis v. gracilis | Fragilariopsis rhombica, F. kerguelensis | Fragilariopsis curta (29.6 %) F cylindrus (15.4%) | Fragilariopsis spp. (48.6%) CRS (36.7%) | Porosira glacialis RS, Stellarima microtrias RS, Corethron pennatum, Thalassiosira spp., Coscinodiscus bouvet, Trigonium arcticum | CRS Fragilariopsis spp. |
| D: Laminae characterised by Stellarima microtrias RS, Porosira glacialis RS and Coscinodiscus bouvet | Fragilariopsis ritscheri, F. sublinearis, Stellarima microtrias RS, Eucampia antarctica, Proboscia inermis, Thalassiosira gracilis v. gracilis, Corethron pennatum,T. lentiginosa | Fragilariopsis rhombica, F. kerguelensis, Phaeoceros Chaetoceros spp., Thalassiosira poroseriata, Porosira glacialis RS | Fragilariopsis curta (23.3 %) F. cylindrus (19.2%) | CRS (40.1%) Fragilariopsis spp. (39.8%) | CRS, Fragilariopsis spp., Thalassiosira spp. | Stellarima microtrias RS, Porosira glacialis RS, Coscinodiscus bouvet |
| E: Laminae characterised by Porosira glacialis RS | Fragilariopsis ritscheri, veg Hyalochaete Chaetoceros spp., F. cylindrus, Phaeoceros Chaetoceros spp., Thalassiosira antarctica, F. sublinearis, T. gravida, T. gracilis v. gracilis, Rhizosolenia spp., Eucampia antarctica, T. lentiginosa | Porosira glacialis RS, Fragilariopsis rhombica, F kerguelensis,Thalassiosira poroseriata | Fragilariopsis curta (20.9%) | CRS (59.6%) Fragilariopsis spp. (20.3%) | CRS, Fragilariopsis spp. | Porosira glacialis RS |