(Table 1) Abundance of Pleistocene dinoflagellate cysts in ODP Site 133-820
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| Format: | Dataset Open Access |
| Langue: | en |
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PANGAEA
1993
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| _version_ | 1867168110455291904 |
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| author | McMinn, Andrew |
| author_facet | McMinn, Andrew |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | Compared with other Australian marine Quaternary locations, Site 820's dinoflagellate cyst assemblages are low in both abundance and diversity. Abundances are between < 1 and 14 cysts/cm3 , and the number of species is between 7 and 14 per sample. The dominant species are Operculodinium israelianum, Spiniferites bulloideus, Spiniferites hyperacanthus and Tuberculodinium vancampoae, which together usually make up more than 75% of the assemblage. The rareness of Protoperidinium spp., taxa usually associated with nutrient enrichment, suggests that upwelling was not a regular feature of this region during the Quaternary. The relative dinoflagellate abundance, which indicates changes in the position of the coastline, shows the presence of several sea-level events, particularly near the base of the sequence. Here, they parallel at least two upward-coarsening cycles in the sediment record. Further comparison is hindered by too large a sampling interval. |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_785956 |
| institution | PANGAEA |
| language | en |
| publishDate | 1993 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | (Table 1) Abundance of Pleistocene dinoflagellate cysts in ODP Site 133-820 McMinn, Andrew 133-820A; 133-820B; Achomosphaera sp.; Coral Sea; DEPTH, sediment/rock; Dinoflagellate cyst; Dinoflagellates; Dinoflagellates, total; DRILL; Drilling/drill rig; DSDP/ODP/IODP sample designation; Event label; Hystrichokolpoma rigaudiae; Impagidinium aculeatum; Impagidinium paradoxum; Impagidinium patulum; Impagidinium sp.; Impagidinium sphaericum; Impagidinium strialatum; Joides Resolution; Leg133; Lingulodinium machaerophorum; Nematosphaeropsis lemniscata; Ocean Drilling Program; ODP; Operculodinium centrocarpum; Operculodinium echigoense; Operculodinium israelianum; Operculodinium longispinigerum; Protoperidinium conicum; Protoperidinium pentagonum; Protoperidinium subinerme; Sample code/label; Spiniferites bulloideus; Spiniferites hyperacanthus; Spiniferites membranaceus; Spiniferites mirabilis; Spiniferites ramosus; Tuberculodinium vancampoae Compared with other Australian marine Quaternary locations, Site 820's dinoflagellate cyst assemblages are low in both abundance and diversity. Abundances are between < 1 and 14 cysts/cm3 , and the number of species is between 7 and 14 per sample. The dominant species are Operculodinium israelianum, Spiniferites bulloideus, Spiniferites hyperacanthus and Tuberculodinium vancampoae, which together usually make up more than 75% of the assemblage. The rareness of Protoperidinium spp., taxa usually associated with nutrient enrichment, suggests that upwelling was not a regular feature of this region during the Quaternary. The relative dinoflagellate abundance, which indicates changes in the position of the coastline, shows the presence of several sea-level events, particularly near the base of the sequence. Here, they parallel at least two upward-coarsening cycles in the sediment record. Further comparison is hindered by too large a sampling interval. |
| title | (Table 1) Abundance of Pleistocene dinoflagellate cysts in ODP Site 133-820 |
| topic | 133-820A; 133-820B; Achomosphaera sp.; Coral Sea; DEPTH, sediment/rock; Dinoflagellate cyst; Dinoflagellates; Dinoflagellates, total; DRILL; Drilling/drill rig; DSDP/ODP/IODP sample designation; Event label; Hystrichokolpoma rigaudiae; Impagidinium aculeatum; Impagidinium paradoxum; Impagidinium patulum; Impagidinium sp.; Impagidinium sphaericum; Impagidinium strialatum; Joides Resolution; Leg133; Lingulodinium machaerophorum; Nematosphaeropsis lemniscata; Ocean Drilling Program; ODP; Operculodinium centrocarpum; Operculodinium echigoense; Operculodinium israelianum; Operculodinium longispinigerum; Protoperidinium conicum; Protoperidinium pentagonum; Protoperidinium subinerme; Sample code/label; Spiniferites bulloideus; Spiniferites hyperacanthus; Spiniferites membranaceus; Spiniferites mirabilis; Spiniferites ramosus; Tuberculodinium vancampoae |
| url | https://doi.org/10.1594/PANGAEA.785956 |