(Table T1) Radiolaria abundance of ODP Hole 175-1082A
A primary objective of Leg 175 was to investigate the upwelling history of the Benguela Current. Upwelling along the coast is found over the shelf in several well-established cells, as well as along the shelf-slope break, and extends over the 1000-m isobath. Streaming filaments along the coast also...
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Format: | Dataset |
Language: | English |
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PANGAEA
2001
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Online Access: | https://doi.pangaea.de/10.1594/PANGAEA.787554 https://doi.org/10.1594/PANGAEA.787554 |
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.787554 |
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record_format |
openpolar |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
175-1082A Acrosphaera murrayana Actinomma cf. leptodermum Amphirhopalum ypsilon Anthocyrtidium ophirense Anthocyrtidium zanguebaricum Arachnocorys circumtexta Arachnocorys penthacantha Benguela Current South Atlantic Ocean Botryocyrtis scutum Botryostrobus aquilonaris Botryostrobus auritus/australis group Carpocanarium papillosum Carpocanistrum sp. Clathrocyclas bicornis Cornutella profunda Corocalyptra columba Counting radiolarians Cycladophora davisiana Cycladophora davisiana cornutoides Cyrtolagena laguncula Dictyocoryne profunda Dictyocoryne sp. Dictyophimus crisiae Dictyophimus gracilipes Dictyophimus infabricatus Didymocyrtis tetrathalamus DRILL Drilling/drill rig DSDP/ODP/IODP sample designation Eucyrtidium acuminatum Eucyrtidium cf. teuscheri Helotholus histricosa Hexacontium enthacanthum Joides Resolution Lamprocyclas maritalis Lamprocyrtis hannai Lamprocyrtis nigriniae Lampromitra coronata Lampromitra quadricuspis Larcopyle buetschlii Leg175 Lipmanella dictyoceras Lithelius minor Lithomelissa setosa Lithostrobus hexagonalis Lophospyris pentagona pentagona Lophospyris spp. |
spellingShingle |
175-1082A Acrosphaera murrayana Actinomma cf. leptodermum Amphirhopalum ypsilon Anthocyrtidium ophirense Anthocyrtidium zanguebaricum Arachnocorys circumtexta Arachnocorys penthacantha Benguela Current South Atlantic Ocean Botryocyrtis scutum Botryostrobus aquilonaris Botryostrobus auritus/australis group Carpocanarium papillosum Carpocanistrum sp. Clathrocyclas bicornis Cornutella profunda Corocalyptra columba Counting radiolarians Cycladophora davisiana Cycladophora davisiana cornutoides Cyrtolagena laguncula Dictyocoryne profunda Dictyocoryne sp. Dictyophimus crisiae Dictyophimus gracilipes Dictyophimus infabricatus Didymocyrtis tetrathalamus DRILL Drilling/drill rig DSDP/ODP/IODP sample designation Eucyrtidium acuminatum Eucyrtidium cf. teuscheri Helotholus histricosa Hexacontium enthacanthum Joides Resolution Lamprocyclas maritalis Lamprocyrtis hannai Lamprocyrtis nigriniae Lampromitra coronata Lampromitra quadricuspis Larcopyle buetschlii Leg175 Lipmanella dictyoceras Lithelius minor Lithomelissa setosa Lithostrobus hexagonalis Lophospyris pentagona pentagona Lophospyris spp. Weinheimer, Amy L (Table T1) Radiolaria abundance of ODP Hole 175-1082A |
topic_facet |
175-1082A Acrosphaera murrayana Actinomma cf. leptodermum Amphirhopalum ypsilon Anthocyrtidium ophirense Anthocyrtidium zanguebaricum Arachnocorys circumtexta Arachnocorys penthacantha Benguela Current South Atlantic Ocean Botryocyrtis scutum Botryostrobus aquilonaris Botryostrobus auritus/australis group Carpocanarium papillosum Carpocanistrum sp. Clathrocyclas bicornis Cornutella profunda Corocalyptra columba Counting radiolarians Cycladophora davisiana Cycladophora davisiana cornutoides Cyrtolagena laguncula Dictyocoryne profunda Dictyocoryne sp. Dictyophimus crisiae Dictyophimus gracilipes Dictyophimus infabricatus Didymocyrtis tetrathalamus DRILL Drilling/drill rig DSDP/ODP/IODP sample designation Eucyrtidium acuminatum Eucyrtidium cf. teuscheri Helotholus histricosa Hexacontium enthacanthum Joides Resolution Lamprocyclas maritalis Lamprocyrtis hannai Lamprocyrtis nigriniae Lampromitra coronata Lampromitra quadricuspis Larcopyle buetschlii Leg175 Lipmanella dictyoceras Lithelius minor Lithomelissa setosa Lithostrobus hexagonalis Lophospyris pentagona pentagona Lophospyris spp. |
description |
A primary objective of Leg 175 was to investigate the upwelling history of the Benguela Current. Upwelling along the coast is found over the shelf in several well-established cells, as well as along the shelf-slope break, and extends over the 1000-m isobath. Streaming filaments along the coast also carry upwelled water off shore (Shannon, 1985). The upwelled nutrient-rich waters are sourced from the South Atlantic central water mass, which is a mixture of subtropical and subantarctic water masses. Below the central water mass lies Antarctic intermediate water (Shannon and Hunter, 1988, doi:10.2989/025776188784480735; Stramma and Peterson, 1989, doi:10.1175/1520-0485(1989)019<1440:GTITBC>2.0.CO;2). The upwelling system supports a robust marine community (Shannon and Pillar, 1986) where radiolarians are abundant (Bishop et al., 1978, doi:10.1016/0146-6291(78)90010-3). The endemic nature of radiolarians makes them useful in reconstructing the paleocirculation patterns. The biogeographic distribution of many species is limited by water-mass distribution. In a given geographic region, species may also have discrete depth habitats. However, their depth of occurrence can change worldwide because the depths of water masses vary with latitude (Boltovskoy, 1999). Consequently, species found at shallow depths at high latitudes (cold-water fauna) are observed deeper in the water column at lower latitudes. The low-latitude submergence of cold-water species broadens their distribution, resulting in species distributions that can cover multiple geographic regions (Kling, 1976, doi:10.1016/0011-7471(76)90880-9; Casey, doi:10.1016/0031-0182(89)90017-5; 1971; Boltovskoy, 1987, doi:10.1016/0377-8398(87)90014-4). Since radiolarian distribution is closely related to water-mass distribution and controlled by climatic conditions rather than geographic regions, similar assemblages characterize the equatorial, subtropical, transition, subpolar, and polar regions of ocean basins (Petrushevskaya, 1971a; Casey, 1989, ... |
format |
Dataset |
author |
Weinheimer, Amy L |
author_facet |
Weinheimer, Amy L |
author_sort |
Weinheimer, Amy L |
title |
(Table T1) Radiolaria abundance of ODP Hole 175-1082A |
title_short |
(Table T1) Radiolaria abundance of ODP Hole 175-1082A |
title_full |
(Table T1) Radiolaria abundance of ODP Hole 175-1082A |
title_fullStr |
(Table T1) Radiolaria abundance of ODP Hole 175-1082A |
title_full_unstemmed |
(Table T1) Radiolaria abundance of ODP Hole 175-1082A |
title_sort |
(table t1) radiolaria abundance of odp hole 175-1082a |
publisher |
PANGAEA |
publishDate |
2001 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.787554 https://doi.org/10.1594/PANGAEA.787554 |
op_coverage |
LATITUDE: -21.093940 * LONGITUDE: 11.820580 * DATE/TIME START: 1997-09-13T04:45:00 * DATE/TIME END: 1997-09-16T00:05:00 * MINIMUM ELEVATION: -1279.3 m * MAXIMUM ELEVATION: -1279.3 m |
long_lat |
ENVELOPE(166.217,166.217,-77.583,-77.583) ENVELOPE(11.820580,11.820580,-21.093940,-21.093940) |
geographic |
Antarctic Pillar |
geographic_facet |
Antarctic Pillar |
genre |
Antarc* Antarctic South Atlantic Ocean |
genre_facet |
Antarc* Antarctic South Atlantic Ocean |
op_source |
Supplement to: Weinheimer, Amy L (2001): Radiolarians from Northern Cape Basin, Site 1082. In: Wefer, G; Berger, WH; Richter, C (eds.) Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 175, 1-16, https://doi.org/10.2973/odp.proc.sr.175.223.2001 |
op_relation |
https://doi.pangaea.de/10.1594/PANGAEA.787554 https://doi.org/10.1594/PANGAEA.787554 |
op_rights |
CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1594/PANGAEA.787554 https://doi.org/10.2973/odp.proc.sr.175.223.2001 |
_version_ |
1766261617062838272 |
spelling |
ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.787554 2023-05-15T13:55:15+02:00 (Table T1) Radiolaria abundance of ODP Hole 175-1082A Weinheimer, Amy L LATITUDE: -21.093940 * LONGITUDE: 11.820580 * DATE/TIME START: 1997-09-13T04:45:00 * DATE/TIME END: 1997-09-16T00:05:00 * MINIMUM ELEVATION: -1279.3 m * MAXIMUM ELEVATION: -1279.3 m 2001-08-21 text/tab-separated-values, 3551 data points https://doi.pangaea.de/10.1594/PANGAEA.787554 https://doi.org/10.1594/PANGAEA.787554 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.787554 https://doi.org/10.1594/PANGAEA.787554 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess CC-BY Supplement to: Weinheimer, Amy L (2001): Radiolarians from Northern Cape Basin, Site 1082. In: Wefer, G; Berger, WH; Richter, C (eds.) Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 175, 1-16, https://doi.org/10.2973/odp.proc.sr.175.223.2001 175-1082A Acrosphaera murrayana Actinomma cf. leptodermum Amphirhopalum ypsilon Anthocyrtidium ophirense Anthocyrtidium zanguebaricum Arachnocorys circumtexta Arachnocorys penthacantha Benguela Current South Atlantic Ocean Botryocyrtis scutum Botryostrobus aquilonaris Botryostrobus auritus/australis group Carpocanarium papillosum Carpocanistrum sp. Clathrocyclas bicornis Cornutella profunda Corocalyptra columba Counting radiolarians Cycladophora davisiana Cycladophora davisiana cornutoides Cyrtolagena laguncula Dictyocoryne profunda Dictyocoryne sp. Dictyophimus crisiae Dictyophimus gracilipes Dictyophimus infabricatus Didymocyrtis tetrathalamus DRILL Drilling/drill rig DSDP/ODP/IODP sample designation Eucyrtidium acuminatum Eucyrtidium cf. teuscheri Helotholus histricosa Hexacontium enthacanthum Joides Resolution Lamprocyclas maritalis Lamprocyrtis hannai Lamprocyrtis nigriniae Lampromitra coronata Lampromitra quadricuspis Larcopyle buetschlii Leg175 Lipmanella dictyoceras Lithelius minor Lithomelissa setosa Lithostrobus hexagonalis Lophospyris pentagona pentagona Lophospyris spp. Dataset 2001 ftpangaea https://doi.org/10.1594/PANGAEA.787554 https://doi.org/10.2973/odp.proc.sr.175.223.2001 2023-01-20T08:55:09Z A primary objective of Leg 175 was to investigate the upwelling history of the Benguela Current. Upwelling along the coast is found over the shelf in several well-established cells, as well as along the shelf-slope break, and extends over the 1000-m isobath. Streaming filaments along the coast also carry upwelled water off shore (Shannon, 1985). The upwelled nutrient-rich waters are sourced from the South Atlantic central water mass, which is a mixture of subtropical and subantarctic water masses. Below the central water mass lies Antarctic intermediate water (Shannon and Hunter, 1988, doi:10.2989/025776188784480735; Stramma and Peterson, 1989, doi:10.1175/1520-0485(1989)019<1440:GTITBC>2.0.CO;2). The upwelling system supports a robust marine community (Shannon and Pillar, 1986) where radiolarians are abundant (Bishop et al., 1978, doi:10.1016/0146-6291(78)90010-3). The endemic nature of radiolarians makes them useful in reconstructing the paleocirculation patterns. The biogeographic distribution of many species is limited by water-mass distribution. In a given geographic region, species may also have discrete depth habitats. However, their depth of occurrence can change worldwide because the depths of water masses vary with latitude (Boltovskoy, 1999). Consequently, species found at shallow depths at high latitudes (cold-water fauna) are observed deeper in the water column at lower latitudes. The low-latitude submergence of cold-water species broadens their distribution, resulting in species distributions that can cover multiple geographic regions (Kling, 1976, doi:10.1016/0011-7471(76)90880-9; Casey, doi:10.1016/0031-0182(89)90017-5; 1971; Boltovskoy, 1987, doi:10.1016/0377-8398(87)90014-4). Since radiolarian distribution is closely related to water-mass distribution and controlled by climatic conditions rather than geographic regions, similar assemblages characterize the equatorial, subtropical, transition, subpolar, and polar regions of ocean basins (Petrushevskaya, 1971a; Casey, 1989, ... Dataset Antarc* Antarctic South Atlantic Ocean PANGAEA - Data Publisher for Earth & Environmental Science Antarctic Pillar ENVELOPE(166.217,166.217,-77.583,-77.583) ENVELOPE(11.820580,11.820580,-21.093940,-21.093940) |