Displaced diatom, discoasters and benthic foraminifers at DSDP Hole 72-515A, supplement to: Shor, George; Jones, Glenn A; Rasmussen, Kenneth A; Burckle, Lloyd H (1983): Carbonate spikes and displaced components at Deep Sea Drilling Project Site 515: Pliocene/Pleistocene depositional processes in the southern Brazil Basin. In: Barker, PF; Carlson, RL; Johnson, DA; et al. (eds.), Initial Reports of the Deep Sea Drilling Project (U.S. Govt. Printing Office), 72, 885-893
Late Pliocene to Recent sediments from the southern Brazil Basin (DSDP Hole 515A, hydraulic piston core) were analyzed for evidence of episodic flow of Antarctic Bottom Water (AABW) through the Vema Channel. Carbonate-enriched layers punctuate the post-Pliocene section, otherwise composed predominan...
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1983
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ftdatacite:10.1594/pangaea.811786 2023-05-15T13:56:06+02:00 Displaced diatom, discoasters and benthic foraminifers at DSDP Hole 72-515A, supplement to: Shor, George; Jones, Glenn A; Rasmussen, Kenneth A; Burckle, Lloyd H (1983): Carbonate spikes and displaced components at Deep Sea Drilling Project Site 515: Pliocene/Pleistocene depositional processes in the southern Brazil Basin. In: Barker, PF; Carlson, RL; Johnson, DA; et al. (eds.), Initial Reports of the Deep Sea Drilling Project (U.S. Govt. Printing Office), 72, 885-893 Shor, George Jones, Glenn A Rasmussen, Kenneth A Burckle, Lloyd H 1983 application/zip https://dx.doi.org/10.1594/pangaea.811786 https://doi.pangaea.de/10.1594/PANGAEA.811786 en eng PANGAEA - Data Publisher for Earth & Environmental Science https://dx.doi.org/10.2973/dsdp.proc.72.144.1983 Creative Commons Attribution 3.0 Unported https://creativecommons.org/licenses/by/3.0/legalcode cc-by-3.0 CC-BY Drilling/drill rig Leg72 Glomar Challenger Deep Sea Drilling Project DSDP Collection article Supplementary Collection of Datasets 1983 ftdatacite https://doi.org/10.1594/pangaea.811786 https://doi.org/10.2973/dsdp.proc.72.144.1983 2021-11-05T12:55:41Z Late Pliocene to Recent sediments from the southern Brazil Basin (DSDP Hole 515A, hydraulic piston core) were analyzed for evidence of episodic flow of Antarctic Bottom Water (AABW) through the Vema Channel. Carbonate-enriched layers punctuate the post-Pliocene section, otherwise composed predominantly of terrigenous silt and clay. Carbonate enrichment is thought to result from rapid deposition of fine-grained calcareous turbidites, originating in canyons incised on the northern margin of the Rio Grande Rise. The composition of benthic foraminiferal assemblages and the presence of stratigraphically displaced discoasters is consistent with a turbidite origin. Based on the presence of displaced Antarctic diatoms, AABW flow through the Vema Channel apparently has had a major influence on this site for only four periods during the last 2.7 Ma (about 45 to 250; 375 to 430; 700 to 780; 1320 to 1345 thousand yr. ago). Article in Journal/Newspaper Antarc* Antarctic DataCite Metadata Store (German National Library of Science and Technology) Antarctic Rasmussen ENVELOPE(-64.084,-64.084,-65.248,-65.248) |
institution |
Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
English |
topic |
Drilling/drill rig Leg72 Glomar Challenger Deep Sea Drilling Project DSDP |
spellingShingle |
Drilling/drill rig Leg72 Glomar Challenger Deep Sea Drilling Project DSDP Shor, George Jones, Glenn A Rasmussen, Kenneth A Burckle, Lloyd H Displaced diatom, discoasters and benthic foraminifers at DSDP Hole 72-515A, supplement to: Shor, George; Jones, Glenn A; Rasmussen, Kenneth A; Burckle, Lloyd H (1983): Carbonate spikes and displaced components at Deep Sea Drilling Project Site 515: Pliocene/Pleistocene depositional processes in the southern Brazil Basin. In: Barker, PF; Carlson, RL; Johnson, DA; et al. (eds.), Initial Reports of the Deep Sea Drilling Project (U.S. Govt. Printing Office), 72, 885-893 |
topic_facet |
Drilling/drill rig Leg72 Glomar Challenger Deep Sea Drilling Project DSDP |
description |
Late Pliocene to Recent sediments from the southern Brazil Basin (DSDP Hole 515A, hydraulic piston core) were analyzed for evidence of episodic flow of Antarctic Bottom Water (AABW) through the Vema Channel. Carbonate-enriched layers punctuate the post-Pliocene section, otherwise composed predominantly of terrigenous silt and clay. Carbonate enrichment is thought to result from rapid deposition of fine-grained calcareous turbidites, originating in canyons incised on the northern margin of the Rio Grande Rise. The composition of benthic foraminiferal assemblages and the presence of stratigraphically displaced discoasters is consistent with a turbidite origin. Based on the presence of displaced Antarctic diatoms, AABW flow through the Vema Channel apparently has had a major influence on this site for only four periods during the last 2.7 Ma (about 45 to 250; 375 to 430; 700 to 780; 1320 to 1345 thousand yr. ago). |
format |
Article in Journal/Newspaper |
author |
Shor, George Jones, Glenn A Rasmussen, Kenneth A Burckle, Lloyd H |
author_facet |
Shor, George Jones, Glenn A Rasmussen, Kenneth A Burckle, Lloyd H |
author_sort |
Shor, George |
title |
Displaced diatom, discoasters and benthic foraminifers at DSDP Hole 72-515A, supplement to: Shor, George; Jones, Glenn A; Rasmussen, Kenneth A; Burckle, Lloyd H (1983): Carbonate spikes and displaced components at Deep Sea Drilling Project Site 515: Pliocene/Pleistocene depositional processes in the southern Brazil Basin. In: Barker, PF; Carlson, RL; Johnson, DA; et al. (eds.), Initial Reports of the Deep Sea Drilling Project (U.S. Govt. Printing Office), 72, 885-893 |
title_short |
Displaced diatom, discoasters and benthic foraminifers at DSDP Hole 72-515A, supplement to: Shor, George; Jones, Glenn A; Rasmussen, Kenneth A; Burckle, Lloyd H (1983): Carbonate spikes and displaced components at Deep Sea Drilling Project Site 515: Pliocene/Pleistocene depositional processes in the southern Brazil Basin. In: Barker, PF; Carlson, RL; Johnson, DA; et al. (eds.), Initial Reports of the Deep Sea Drilling Project (U.S. Govt. Printing Office), 72, 885-893 |
title_full |
Displaced diatom, discoasters and benthic foraminifers at DSDP Hole 72-515A, supplement to: Shor, George; Jones, Glenn A; Rasmussen, Kenneth A; Burckle, Lloyd H (1983): Carbonate spikes and displaced components at Deep Sea Drilling Project Site 515: Pliocene/Pleistocene depositional processes in the southern Brazil Basin. In: Barker, PF; Carlson, RL; Johnson, DA; et al. (eds.), Initial Reports of the Deep Sea Drilling Project (U.S. Govt. Printing Office), 72, 885-893 |
title_fullStr |
Displaced diatom, discoasters and benthic foraminifers at DSDP Hole 72-515A, supplement to: Shor, George; Jones, Glenn A; Rasmussen, Kenneth A; Burckle, Lloyd H (1983): Carbonate spikes and displaced components at Deep Sea Drilling Project Site 515: Pliocene/Pleistocene depositional processes in the southern Brazil Basin. In: Barker, PF; Carlson, RL; Johnson, DA; et al. (eds.), Initial Reports of the Deep Sea Drilling Project (U.S. Govt. Printing Office), 72, 885-893 |
title_full_unstemmed |
Displaced diatom, discoasters and benthic foraminifers at DSDP Hole 72-515A, supplement to: Shor, George; Jones, Glenn A; Rasmussen, Kenneth A; Burckle, Lloyd H (1983): Carbonate spikes and displaced components at Deep Sea Drilling Project Site 515: Pliocene/Pleistocene depositional processes in the southern Brazil Basin. In: Barker, PF; Carlson, RL; Johnson, DA; et al. (eds.), Initial Reports of the Deep Sea Drilling Project (U.S. Govt. Printing Office), 72, 885-893 |
title_sort |
displaced diatom, discoasters and benthic foraminifers at dsdp hole 72-515a, supplement to: shor, george; jones, glenn a; rasmussen, kenneth a; burckle, lloyd h (1983): carbonate spikes and displaced components at deep sea drilling project site 515: pliocene/pleistocene depositional processes in the southern brazil basin. in: barker, pf; carlson, rl; johnson, da; et al. (eds.), initial reports of the deep sea drilling project (u.s. govt. printing office), 72, 885-893 |
publisher |
PANGAEA - Data Publisher for Earth & Environmental Science |
publishDate |
1983 |
url |
https://dx.doi.org/10.1594/pangaea.811786 https://doi.pangaea.de/10.1594/PANGAEA.811786 |
long_lat |
ENVELOPE(-64.084,-64.084,-65.248,-65.248) |
geographic |
Antarctic Rasmussen |
geographic_facet |
Antarctic Rasmussen |
genre |
Antarc* Antarctic |
genre_facet |
Antarc* Antarctic |
op_relation |
https://dx.doi.org/10.2973/dsdp.proc.72.144.1983 |
op_rights |
Creative Commons Attribution 3.0 Unported https://creativecommons.org/licenses/by/3.0/legalcode cc-by-3.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1594/pangaea.811786 https://doi.org/10.2973/dsdp.proc.72.144.1983 |
_version_ |
1766263332902273024 |