Morphometry of calcareous nannofossils from the Oceanic Anoxic Event 1a
Ocean acidification induced by atmospheric CO2 may be a major threat to marine ecosystems, particularly to calcareous nannoplankton. We show that, during the Aptian (~120 million years ago) Oceanic Anoxic Event 1a, which resulted from a massive addition of volcanic CO2, the morphological features of...
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.771682 2023-05-15T17:51:13+02:00 Morphometry of calcareous nannofossils from the Oceanic Anoxic Event 1a Erba, Elisabetta Bottini, Cinzia Weissert, Helmut J Keller, Christina E MEDIAN LATITUDE: 37.816733 * MEDIAN LONGITUDE: 66.055933 * SOUTH-BOUND LATITUDE: 21.350200 * WEST-BOUND LONGITUDE: 11.750000 * NORTH-BOUND LATITUDE: 46.050000 * EAST-BOUND LONGITUDE: 174.667800 * DATE/TIME START: 1978-08-02T00:00:00 * DATE/TIME END: 1978-08-02T00:00:00 2010-11-21 application/zip, 3 datasets https://doi.pangaea.de/10.1594/PANGAEA.771682 https://doi.org/10.1594/PANGAEA.771682 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.771682 https://doi.org/10.1594/PANGAEA.771682 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess CC-BY Supplement to: Erba, Elisabetta; Bottini, Cinzia; Weissert, Helmut J; Keller, Christina E (2010): Calcareous nannoplankton response to surface-water acidification around Oceanic Anoxic Event 1a. Science, 329(5990), 428-432, https://doi.org/10.1126/science.1188886 62-463 APTICORE Cismon Deep Sea Drilling Project DRILL Drilling/drill rig DSDP Glomar Challenger Leg62 North Pacific/SEAMOUNT Dataset 2010 ftpangaea https://doi.org/10.1594/PANGAEA.771682 https://doi.org/10.1126/science.1188886 2023-01-20T07:32:20Z Ocean acidification induced by atmospheric CO2 may be a major threat to marine ecosystems, particularly to calcareous nannoplankton. We show that, during the Aptian (~120 million years ago) Oceanic Anoxic Event 1a, which resulted from a massive addition of volcanic CO2, the morphological features of calcareous nannofossils traced the biological response to acidified surface waters. We observe the demise of heavily calcified nannoconids and reduced calcite paleofluxes at the beginning of a pre-anoxia calcification crisis. Ephemeral coccolith dwarfism and malformation represent species-specific adjustments to survive lower pH, whereas later, abundance peaks indicate intermittent alkalinity recovery. Deepwater acidification occurred with a delay of 25,000 to 30,000 years. After the dissolution climax, nannoplankton and carbonate recovery developed over ~160,000 years under persisting global dysoxia-anoxia. Dataset Ocean acidification PANGAEA - Data Publisher for Earth & Environmental Science Pacific ENVELOPE(11.750000,174.667800,46.050000,21.350200) |
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Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
62-463 APTICORE Cismon Deep Sea Drilling Project DRILL Drilling/drill rig DSDP Glomar Challenger Leg62 North Pacific/SEAMOUNT |
spellingShingle |
62-463 APTICORE Cismon Deep Sea Drilling Project DRILL Drilling/drill rig DSDP Glomar Challenger Leg62 North Pacific/SEAMOUNT Erba, Elisabetta Bottini, Cinzia Weissert, Helmut J Keller, Christina E Morphometry of calcareous nannofossils from the Oceanic Anoxic Event 1a |
topic_facet |
62-463 APTICORE Cismon Deep Sea Drilling Project DRILL Drilling/drill rig DSDP Glomar Challenger Leg62 North Pacific/SEAMOUNT |
description |
Ocean acidification induced by atmospheric CO2 may be a major threat to marine ecosystems, particularly to calcareous nannoplankton. We show that, during the Aptian (~120 million years ago) Oceanic Anoxic Event 1a, which resulted from a massive addition of volcanic CO2, the morphological features of calcareous nannofossils traced the biological response to acidified surface waters. We observe the demise of heavily calcified nannoconids and reduced calcite paleofluxes at the beginning of a pre-anoxia calcification crisis. Ephemeral coccolith dwarfism and malformation represent species-specific adjustments to survive lower pH, whereas later, abundance peaks indicate intermittent alkalinity recovery. Deepwater acidification occurred with a delay of 25,000 to 30,000 years. After the dissolution climax, nannoplankton and carbonate recovery developed over ~160,000 years under persisting global dysoxia-anoxia. |
format |
Dataset |
author |
Erba, Elisabetta Bottini, Cinzia Weissert, Helmut J Keller, Christina E |
author_facet |
Erba, Elisabetta Bottini, Cinzia Weissert, Helmut J Keller, Christina E |
author_sort |
Erba, Elisabetta |
title |
Morphometry of calcareous nannofossils from the Oceanic Anoxic Event 1a |
title_short |
Morphometry of calcareous nannofossils from the Oceanic Anoxic Event 1a |
title_full |
Morphometry of calcareous nannofossils from the Oceanic Anoxic Event 1a |
title_fullStr |
Morphometry of calcareous nannofossils from the Oceanic Anoxic Event 1a |
title_full_unstemmed |
Morphometry of calcareous nannofossils from the Oceanic Anoxic Event 1a |
title_sort |
morphometry of calcareous nannofossils from the oceanic anoxic event 1a |
publisher |
PANGAEA |
publishDate |
2010 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.771682 https://doi.org/10.1594/PANGAEA.771682 |
op_coverage |
MEDIAN LATITUDE: 37.816733 * MEDIAN LONGITUDE: 66.055933 * SOUTH-BOUND LATITUDE: 21.350200 * WEST-BOUND LONGITUDE: 11.750000 * NORTH-BOUND LATITUDE: 46.050000 * EAST-BOUND LONGITUDE: 174.667800 * DATE/TIME START: 1978-08-02T00:00:00 * DATE/TIME END: 1978-08-02T00:00:00 |
long_lat |
ENVELOPE(11.750000,174.667800,46.050000,21.350200) |
geographic |
Pacific |
geographic_facet |
Pacific |
genre |
Ocean acidification |
genre_facet |
Ocean acidification |
op_source |
Supplement to: Erba, Elisabetta; Bottini, Cinzia; Weissert, Helmut J; Keller, Christina E (2010): Calcareous nannoplankton response to surface-water acidification around Oceanic Anoxic Event 1a. Science, 329(5990), 428-432, https://doi.org/10.1126/science.1188886 |
op_relation |
https://doi.pangaea.de/10.1594/PANGAEA.771682 https://doi.org/10.1594/PANGAEA.771682 |
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.771682 https://doi.org/10.1126/science.1188886 |
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1766158305832468480 |