An in situ study of abyssal turbidity-current sediment plumes generated by a deep seabed polymetallic nodule mining preprototype collector vehicle
An in situ study to investigate the dynamics of sediment plumes near the release from a deep seabed polymetallic nodule mining preprototype collector vehicle was conducted in the Clarion Clipperton Zone in the Pacific Ocean 4500-m deep. The experiments reveal that the excess density of the released...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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American Association for the Advancement of Science
2024
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| Online Access: | https://hdl.handle.net/1721.1/154073 |
| _version_ | 1826203137403256832 |
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| author | Muñoz-Royo, Carlos Ouillon, Raphael El Mousadik, Souha Alford, Matthew H. Peacock, Thomas |
| author2 | Massachusetts Institute of Technology. Department of Mechanical Engineering |
| author_facet | Massachusetts Institute of Technology. Department of Mechanical Engineering Muñoz-Royo, Carlos Ouillon, Raphael El Mousadik, Souha Alford, Matthew H. Peacock, Thomas |
| author_sort | Muñoz-Royo, Carlos |
| collection | MIT |
| description | An in situ study to investigate the dynamics of sediment plumes near the release from a deep seabed polymetallic nodule mining preprototype collector vehicle was conducted in the Clarion Clipperton Zone in the Pacific Ocean 4500-m deep. The experiments reveal that the excess density of the released sediment-laden water leads to a low-lying, laterally spreading turbidity current. At the time of measurement, 2 to 8% of the sediment mass were detected 2 m or higher above the seabed and were not observed to settle over several hours, with the remaining 92 to 98% below 2 m and some fraction of that locally deposited. Our results suggest that turbidity current dynamics sets the fraction of sediment remaining suspended and the scale of the subsequent ambient sediment plume. The implications of this process, which is characteristically overlooked in previous modeling efforts, are substantial for plume modeling that will lie at the heart of environmental impact statements for regulatory consideration. |
| first_indexed | 2024-09-23T12:32:14Z |
| format | Article |
| id | mit-1721.1/154073 |
| institution | Massachusetts Institute of Technology |
| language | English |
| last_indexed | 2025-02-19T04:21:27Z |
| publishDate | 2024 |
| publisher | American Association for the Advancement of Science |
| record_format | dspace |
| spelling | mit-1721.1/1540732025-01-04T05:16:40Z An in situ study of abyssal turbidity-current sediment plumes generated by a deep seabed polymetallic nodule mining preprototype collector vehicle Muñoz-Royo, Carlos Ouillon, Raphael El Mousadik, Souha Alford, Matthew H. Peacock, Thomas Massachusetts Institute of Technology. Department of Mechanical Engineering Multidisciplinary An in situ study to investigate the dynamics of sediment plumes near the release from a deep seabed polymetallic nodule mining preprototype collector vehicle was conducted in the Clarion Clipperton Zone in the Pacific Ocean 4500-m deep. The experiments reveal that the excess density of the released sediment-laden water leads to a low-lying, laterally spreading turbidity current. At the time of measurement, 2 to 8% of the sediment mass were detected 2 m or higher above the seabed and were not observed to settle over several hours, with the remaining 92 to 98% below 2 m and some fraction of that locally deposited. Our results suggest that turbidity current dynamics sets the fraction of sediment remaining suspended and the scale of the subsequent ambient sediment plume. The implications of this process, which is characteristically overlooked in previous modeling efforts, are substantial for plume modeling that will lie at the heart of environmental impact statements for regulatory consideration. 2024-04-04T19:26:36Z 2024-04-04T19:26:36Z 2022-09-23 2024-04-04T18:58:58Z Article http://purl.org/eprint/type/JournalArticle 2375-2548 https://hdl.handle.net/1721.1/154073 Carlos Muñoz-Royo et al. ,An in situ study of abyssal turbidity-current sediment plumes generated by a deep seabed polymetallic nodule mining preprototype collector vehicle.Sci. Adv.8,eabn1219(2022). en 10.1126/sciadv.abn1219 Science Advances Creative Commons Attribution https://creativecommons.org/licenses/by/4.0/ application/pdf American Association for the Advancement of Science American Association for the Advancement of Science |
| spellingShingle | Multidisciplinary Muñoz-Royo, Carlos Ouillon, Raphael El Mousadik, Souha Alford, Matthew H. Peacock, Thomas An in situ study of abyssal turbidity-current sediment plumes generated by a deep seabed polymetallic nodule mining preprototype collector vehicle |
| title | An in situ study of abyssal turbidity-current sediment plumes generated by a deep seabed polymetallic nodule mining preprototype collector vehicle |
| title_full | An in situ study of abyssal turbidity-current sediment plumes generated by a deep seabed polymetallic nodule mining preprototype collector vehicle |
| title_fullStr | An in situ study of abyssal turbidity-current sediment plumes generated by a deep seabed polymetallic nodule mining preprototype collector vehicle |
| title_full_unstemmed | An in situ study of abyssal turbidity-current sediment plumes generated by a deep seabed polymetallic nodule mining preprototype collector vehicle |
| title_short | An in situ study of abyssal turbidity-current sediment plumes generated by a deep seabed polymetallic nodule mining preprototype collector vehicle |
| title_sort | in situ study of abyssal turbidity current sediment plumes generated by a deep seabed polymetallic nodule mining preprototype collector vehicle |
| topic | Multidisciplinary |
| url | https://hdl.handle.net/1721.1/154073 |
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