Lower Albian benthic foraminifera
The Early Albian Oceanic Anoxic Event 1b (OAE 1b) black shale is interrupted by one or more ventilation events that display significant changes in benthic and planktic populations. Within the OAE 1b sections studied, at ODP Site 1049, DSDP Site 545, and the Vocontian Basin, the benthic foraminiferal...
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.736818 2024-05-19T07:45:13+00:00 Lower Albian benthic foraminifera Friedrich, Oliver Nishi, Hiroshi Pross, Jörg Schmiedl, Gerhard Hemleben, Christoph MEDIAN LATITUDE: 40.647767 * MEDIAN LONGITUDE: 0.498933 * SOUTH-BOUND LATITUDE: 33.664300 * WEST-BOUND LONGITUDE: -9.364700 * NORTH-BOUND LATITUDE: 44.274000 * EAST-BOUND LONGITUDE: 5.517500 * DATE/TIME START: 1981-04-23T00:00:00 * DATE/TIME END: 1998-08-15T00:00:00 2005 application/zip, 3 datasets https://doi.pangaea.de/10.1594/PANGAEA.736818 https://doi.org/10.1594/PANGAEA.736818 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.736818 https://doi.org/10.1594/PANGAEA.736818 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess Supplement to: Friedrich, Oliver; Nishi, Hiroshi; Pross, Jörg; Schmiedl, Gerhard; Hemleben, Christoph (2005): Millennial- to Centennial-Scale interruptions of the Oceanic Anoxic Event 1b (Early Albian, mid-Cretaceous) inferred from benthic foraminiferal repopulation events. Palaios, 20(1), 64-77, https://doi.org/10.2110/palo.2003.p03-75 79-545 Arboudeysse Deep Sea Drilling Project DRILL Drilling/drill rig DSDP France GeoTü Glomar Challenger Leg79 Moriez North Atlantic/PLATEAU Paleoceanography at Tübingen University PROFILE Profile sampling Dataset 2005 ftpangaea https://doi.org/10.1594/PANGAEA.73681810.2110/palo.2003.p03-75 2024-04-30T23:34:34Z The Early Albian Oceanic Anoxic Event 1b (OAE 1b) black shale is interrupted by one or more ventilation events that display significant changes in benthic and planktic populations. Within the OAE 1b sections studied, at ODP Site 1049, DSDP Site 545, and the Vocontian Basin, the benthic foraminiferal repopulation events last between ~500 and ~1,250 years and occur with a cyclicity of approximately 5.7 kyr. This period may represent an amplitude modulation of the precessional cycle. The OAE 1b sections from the marginal setting of the Vocontian Basin exhibit up to eight repopulation events. In contrast, there is only one repopulation event identified in the Atlantic OAE 1b sections from the Mazagan Plateau (DSDP 545) and Blake Nose (ODP 1049). Within the margin of dating uncertainties, this supraregional repopulation event occurred synchronously in the Vocontian Basin and the Atlantic Ocean. While the OAE 1b black shale formed under extremely warm and humid conditions, the repopulation events occurred during intervals of short-term cooling and reduced humidity at deep-water formation sites. The resulting increase in evaporation led to enhanced formation of low-latitude deep water, thus improving the ventilation of the sea floor. Dataset North Atlantic PANGAEA - Data Publisher for Earth & Environmental Science ENVELOPE(-9.364700,5.517500,44.274000,33.664300) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
79-545 Arboudeysse Deep Sea Drilling Project DRILL Drilling/drill rig DSDP France GeoTü Glomar Challenger Leg79 Moriez North Atlantic/PLATEAU Paleoceanography at Tübingen University PROFILE Profile sampling |
spellingShingle |
79-545 Arboudeysse Deep Sea Drilling Project DRILL Drilling/drill rig DSDP France GeoTü Glomar Challenger Leg79 Moriez North Atlantic/PLATEAU Paleoceanography at Tübingen University PROFILE Profile sampling Friedrich, Oliver Nishi, Hiroshi Pross, Jörg Schmiedl, Gerhard Hemleben, Christoph Lower Albian benthic foraminifera |
topic_facet |
79-545 Arboudeysse Deep Sea Drilling Project DRILL Drilling/drill rig DSDP France GeoTü Glomar Challenger Leg79 Moriez North Atlantic/PLATEAU Paleoceanography at Tübingen University PROFILE Profile sampling |
description |
The Early Albian Oceanic Anoxic Event 1b (OAE 1b) black shale is interrupted by one or more ventilation events that display significant changes in benthic and planktic populations. Within the OAE 1b sections studied, at ODP Site 1049, DSDP Site 545, and the Vocontian Basin, the benthic foraminiferal repopulation events last between ~500 and ~1,250 years and occur with a cyclicity of approximately 5.7 kyr. This period may represent an amplitude modulation of the precessional cycle. The OAE 1b sections from the marginal setting of the Vocontian Basin exhibit up to eight repopulation events. In contrast, there is only one repopulation event identified in the Atlantic OAE 1b sections from the Mazagan Plateau (DSDP 545) and Blake Nose (ODP 1049). Within the margin of dating uncertainties, this supraregional repopulation event occurred synchronously in the Vocontian Basin and the Atlantic Ocean. While the OAE 1b black shale formed under extremely warm and humid conditions, the repopulation events occurred during intervals of short-term cooling and reduced humidity at deep-water formation sites. The resulting increase in evaporation led to enhanced formation of low-latitude deep water, thus improving the ventilation of the sea floor. |
format |
Dataset |
author |
Friedrich, Oliver Nishi, Hiroshi Pross, Jörg Schmiedl, Gerhard Hemleben, Christoph |
author_facet |
Friedrich, Oliver Nishi, Hiroshi Pross, Jörg Schmiedl, Gerhard Hemleben, Christoph |
author_sort |
Friedrich, Oliver |
title |
Lower Albian benthic foraminifera |
title_short |
Lower Albian benthic foraminifera |
title_full |
Lower Albian benthic foraminifera |
title_fullStr |
Lower Albian benthic foraminifera |
title_full_unstemmed |
Lower Albian benthic foraminifera |
title_sort |
lower albian benthic foraminifera |
publisher |
PANGAEA |
publishDate |
2005 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.736818 https://doi.org/10.1594/PANGAEA.736818 |
op_coverage |
MEDIAN LATITUDE: 40.647767 * MEDIAN LONGITUDE: 0.498933 * SOUTH-BOUND LATITUDE: 33.664300 * WEST-BOUND LONGITUDE: -9.364700 * NORTH-BOUND LATITUDE: 44.274000 * EAST-BOUND LONGITUDE: 5.517500 * DATE/TIME START: 1981-04-23T00:00:00 * DATE/TIME END: 1998-08-15T00:00:00 |
long_lat |
ENVELOPE(-9.364700,5.517500,44.274000,33.664300) |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
Supplement to: Friedrich, Oliver; Nishi, Hiroshi; Pross, Jörg; Schmiedl, Gerhard; Hemleben, Christoph (2005): Millennial- to Centennial-Scale interruptions of the Oceanic Anoxic Event 1b (Early Albian, mid-Cretaceous) inferred from benthic foraminiferal repopulation events. Palaios, 20(1), 64-77, https://doi.org/10.2110/palo.2003.p03-75 |
op_relation |
https://doi.pangaea.de/10.1594/PANGAEA.736818 https://doi.org/10.1594/PANGAEA.736818 |
op_rights |
CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1594/PANGAEA.73681810.2110/palo.2003.p03-75 |
_version_ |
1799485192227782656 |