(Table) Foraminifera abundance and diversity in sediment Core MD02-2508, Baja California continental slope
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| Format: | Dataset Open Access |
| Langue: | en |
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PANGAEA
2010
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| _version_ | 1867171796471513088 |
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| author | Murdmaa, Ivar O Kazarina, G H Beaufort, Luc Ivanova, Elena V Emelyanov, Emelyan M Kravtsov, Victor A Alekhina, G N Vasileva, V E |
| author_facet | Murdmaa, Ivar O Kazarina, G H Beaufort, Luc Ivanova, Elena V Emelyanov, Emelyan M Kravtsov, Victor A Alekhina, G N Vasileva, V E |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | Core MD02-2508 retrieved from the plateau of the continental slope off Baja California recovered a 40-m-thick section of sapropel (up to 15% Corg), calcareous clay, and diatom ooze with the age of 120 ka at the core bottom. The section is subdivided into three units: Unit I (Holocene) consists of the laminated sapropel; Unit II comprising oxygen isotope stages (MIS) 2, 3, and 4 is represented by homogeneous calcareous clay with interbeds of slightly siliceous sapropelic mud; and Unit III (MIS-5) is composed of laminated sapropelic diatom ooze. Laminated intervals are characterized by the intercalation of two lamina types: (1) dark-colored organic-rich laminae containing multi-species 'oceanic' diatom assemblages, as well as radiolarians, coccoliths, planktonic and benthic foraminifera; (2) lighter-colored laminae consisting of diatom ooze with the neritic colonial diatom assemblages commonly composed of one to three species of a single genera. The dark laminae are assumed to be generated within a high productivity zone over the slope, whereas light ones likely represent diatom mats produced by short-term boisterous phytoplankton blooms, possibly in the coastal upwelling. |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_793165 |
| institution | PANGAEA |
| language | en |
| publishDate | 2010 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | (Table) Foraminifera abundance and diversity in sediment Core MD02-2508, Baja California continental slope Murdmaa, Ivar O Kazarina, G H Beaufort, Luc Ivanova, Elena V Emelyanov, Emelyan M Kravtsov, Victor A Alekhina, G N Vasileva, V E Abundance estimate; Archive of Ocean Data; ARCOD; DEPTH, sediment/rock; Diversity description; Dominant species of dead fauna; Foraminifera, benthic; Foraminifera, planktic abundance; Giant piston corer; GPC; IMAGES VIII - MONA; Magdanella Margin; Marion Dufresne (1995); MD022508; MD02-2508; MD126; Stage Core MD02-2508 retrieved from the plateau of the continental slope off Baja California recovered a 40-m-thick section of sapropel (up to 15% Corg), calcareous clay, and diatom ooze with the age of 120 ka at the core bottom. The section is subdivided into three units: Unit I (Holocene) consists of the laminated sapropel; Unit II comprising oxygen isotope stages (MIS) 2, 3, and 4 is represented by homogeneous calcareous clay with interbeds of slightly siliceous sapropelic mud; and Unit III (MIS-5) is composed of laminated sapropelic diatom ooze. Laminated intervals are characterized by the intercalation of two lamina types: (1) dark-colored organic-rich laminae containing multi-species 'oceanic' diatom assemblages, as well as radiolarians, coccoliths, planktonic and benthic foraminifera; (2) lighter-colored laminae consisting of diatom ooze with the neritic colonial diatom assemblages commonly composed of one to three species of a single genera. The dark laminae are assumed to be generated within a high productivity zone over the slope, whereas light ones likely represent diatom mats produced by short-term boisterous phytoplankton blooms, possibly in the coastal upwelling. |
| title | (Table) Foraminifera abundance and diversity in sediment Core MD02-2508, Baja California continental slope |
| topic | Abundance estimate; Archive of Ocean Data; ARCOD; DEPTH, sediment/rock; Diversity description; Dominant species of dead fauna; Foraminifera, benthic; Foraminifera, planktic abundance; Giant piston corer; GPC; IMAGES VIII - MONA; Magdanella Margin; Marion Dufresne (1995); MD022508; MD02-2508; MD126; Stage |
| url | https://doi.org/10.1594/PANGAEA.793165 |