Distribution of living benthic foraminifera in sediment cores of cruise M77 Leg 1 and 2, 63-2000 µm fraction
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| Formato: | Dataset Open Access |
| Lenguaje: | en |
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PANGAEA
2011
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| _version_ | 1867169979696152576 |
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| author | Mallon, Jürgen Glock, Nicolaas Schönfeld, Joachim |
| author_facet | Mallon, Jürgen Glock, Nicolaas Schönfeld, Joachim |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | Recent benthic foraminifera and their distribution in surface sediments were studied on a transect through the Peruvian oxygen minimum zone (OMZ) between 10 and 12°S. The OMZ with its steep gradients of oxygen concentrations allows to determine the oxygen-dependent changes of species compositions in a relatively small area. Our results from sediments of thirteen multicorer stations from 79 to 823 m water depth demonstrate that calcareous species, especially bolivinids dominate the assemblages throughout the OMZ. The depth distribution of several species matches distinct ranges of bottom water oxygen levels. The distribution pattern inferred a proxy which allows to estimate dissolved oxygen concentrations for reconstructing oxygen levels in the geological past. |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_757092 |
| institution | PANGAEA |
| language | en |
| publishDate | 2011 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | Distribution of living benthic foraminifera in sediment cores of cruise M77 Leg 1 and 2, 63-2000 µm fraction Mallon, Jürgen Glock, Nicolaas Schönfeld, Joachim Adercotryma glomeratum; Ammobaculites agglutinans; Ammodiscus incertus; Ammodiscus tenuis; Angulogerina angulosa; Angulogerina carinata; Bolivina alata; Bolivina costata; Bolivina interjuncta; Bolivina plicata; Bolivina seminuda; Bolivina spissa; Bolivina subadvena serrata; Bolivina subaenariensis; Bolivinita minuta; Bulimina pupoides; Buliminella curta; Buliminella curta bassispinata; Buliminella elegantissima limbosa; Buliminella elegantissima tenuis; Cancris carmenensis; Cassidulina auka; Cassidulina crassa; Cassidulina delicata; Cibicidoides wuellerstorfi; Climate - Biogeochemistry Interactions in the Tropical Ocean; Counting 63-2000 µm fraction; Cribrogoesella pacifica; Cyclammina cancellata; DEPTH, sediment/rock; Eggerella scabra; Ehrenbergina compressa; Elevation of event; Epistominella obesa; Epistominella pacifica; Event label; Fursenkoina fusiformis; Gaudryina bradyi; Glomospira gordialis; Gyroidina neosoldanii; Gyroidina soldanii; Gyroidina soldanii multilocula; Hanzawaia mexicana; Haplophragmoides canariensis; Haplophragmoides canariensis mexicana; Haplophragmoides columbiense evolutum; Hoeglundina elegans; Individuals; Latitude of event; Lenticulina convergens; Longitude of event; M77/1; M77/1_449-1; M77/1_456-1; M77/1_459-1; M77/1_470-1; M77/1_473-1; M77/1_482-1; M77/1_487-1; M77/1_516-1; M77/1_540-1; M77/1_553-1; M77/1_616-1; M77/1_622-1; M77/2; M77/2_002-2; M77/2_635-3; Marsipella granulosa; Meteor (1986); MUC; MUC 19; MUC 25; MUC 29; MUC 38; MultiCorer; Multicorer with television; Nonionella auris; Nonionella stella; Nummoloculina irregularis; Oridorsalis umbonatus; Planulina ecuadorana; Pleurostomella brevis; Pullenia elegans; Pulvinulinella subperuviana; Recurvoides contortus; Reophax apiculatus; Reophax dentaliniformis; Reophax scorpiurus; SFB754; Split; Suggrunda porosa; Taxa analyzed; Trochammina globorotaliformis; Trochammina squamata; TVMUC; Uvigerina auberiana; Uvigerina canariensis; Uvigerina peregrina; Uvigerina striata; Valvulina oblonga; Valvulineria glabra; Verneuilina bradyi; Verneuilina propinqua; Virgulina texturata Recent benthic foraminifera and their distribution in surface sediments were studied on a transect through the Peruvian oxygen minimum zone (OMZ) between 10 and 12°S. The OMZ with its steep gradients of oxygen concentrations allows to determine the oxygen-dependent changes of species compositions in a relatively small area. Our results from sediments of thirteen multicorer stations from 79 to 823 m water depth demonstrate that calcareous species, especially bolivinids dominate the assemblages throughout the OMZ. The depth distribution of several species matches distinct ranges of bottom water oxygen levels. The distribution pattern inferred a proxy which allows to estimate dissolved oxygen concentrations for reconstructing oxygen levels in the geological past. |
| title | Distribution of living benthic foraminifera in sediment cores of cruise M77 Leg 1 and 2, 63-2000 µm fraction |
| topic | Adercotryma glomeratum; Ammobaculites agglutinans; Ammodiscus incertus; Ammodiscus tenuis; Angulogerina angulosa; Angulogerina carinata; Bolivina alata; Bolivina costata; Bolivina interjuncta; Bolivina plicata; Bolivina seminuda; Bolivina spissa; Bolivina subadvena serrata; Bolivina subaenariensis; Bolivinita minuta; Bulimina pupoides; Buliminella curta; Buliminella curta bassispinata; Buliminella elegantissima limbosa; Buliminella elegantissima tenuis; Cancris carmenensis; Cassidulina auka; Cassidulina crassa; Cassidulina delicata; Cibicidoides wuellerstorfi; Climate - Biogeochemistry Interactions in the Tropical Ocean; Counting 63-2000 µm fraction; Cribrogoesella pacifica; Cyclammina cancellata; DEPTH, sediment/rock; Eggerella scabra; Ehrenbergina compressa; Elevation of event; Epistominella obesa; Epistominella pacifica; Event label; Fursenkoina fusiformis; Gaudryina bradyi; Glomospira gordialis; Gyroidina neosoldanii; Gyroidina soldanii; Gyroidina soldanii multilocula; Hanzawaia mexicana; Haplophragmoides canariensis; Haplophragmoides canariensis mexicana; Haplophragmoides columbiense evolutum; Hoeglundina elegans; Individuals; Latitude of event; Lenticulina convergens; Longitude of event; M77/1; M77/1_449-1; M77/1_456-1; M77/1_459-1; M77/1_470-1; M77/1_473-1; M77/1_482-1; M77/1_487-1; M77/1_516-1; M77/1_540-1; M77/1_553-1; M77/1_616-1; M77/1_622-1; M77/2; M77/2_002-2; M77/2_635-3; Marsipella granulosa; Meteor (1986); MUC; MUC 19; MUC 25; MUC 29; MUC 38; MultiCorer; Multicorer with television; Nonionella auris; Nonionella stella; Nummoloculina irregularis; Oridorsalis umbonatus; Planulina ecuadorana; Pleurostomella brevis; Pullenia elegans; Pulvinulinella subperuviana; Recurvoides contortus; Reophax apiculatus; Reophax dentaliniformis; Reophax scorpiurus; SFB754; Split; Suggrunda porosa; Taxa analyzed; Trochammina globorotaliformis; Trochammina squamata; TVMUC; Uvigerina auberiana; Uvigerina canariensis; Uvigerina peregrina; Uvigerina striata; Valvulina oblonga; Valvulineria glabra; Verneuilina bradyi; Verneuilina propinqua; Virgulina texturata |
| url | https://doi.org/10.1594/PANGAEA.757092 |