Application of the Comparison of Multibeam Echo-Sound Records to the Study of Stability of a Toxic Waste Stockpile Located on the Margin of a Tidal System: Tinto Estuary, Huelva, SW Spain
| Autor: | Alejandro Reyes, J.A. Morales, José Borrego, B. Carro |
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| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Science
Fluidized sediment injections Deposition (geology) industrial waste Hydrology geography Bed features geography.geographical_feature_category Multibeam Stack (geology) Stockpile Sediment Estuary Industrial waste stockpiles fluidized sediment injections Salt marsh multibeam 2506 Geología Erosion General Earth and Planetary Sciences Environmental science phosphogypsum bed features Phosphogypsum Channel (geography) Stockpiles |
| Zdroj: | Arias Montano. Repositorio Institucional de la Universidad de Huelva instname Remote Sensing Volume 13 Issue 21 Remote Sensing, Vol 13, Iss 4364, p 4364 (2021) |
| DOI: | 10.3390/rs13214364 |
| Popis: | For more than 40 years, the industrial complex which developed near Huelva (in SW Spain) produced a huge amount of phosphogypsum as a waste product of manufacturing fertilizers. This waste was stockpiled in a stack 25 m high, covering 1200 ha of what was once a salt marsh. The weight of that enormous amount of waste produced active subsidence in the underlying sediment. Part of the sediment was injected into the marginal areas, where the load pressure is minor, causing significant vertical movement in the floor of the estuarine channel. This manuscript describes several surficial features using multibeam echosound. A crest formed by cones and a bulge area could be interpreted as injection structures. The evolution of the topographic position of the floor was also analyzed by comparing different records of the estuarine bed in the margins of the stockpile. The data in this work document the changes in the dynamics of the estuary in relation to these vertical movements. These changes in dynamicsled to erosion and deposition in various areas of the bed This research was funded by the project “Balsas de Fosfoyesos”, Especial action 2017–2020 of the Junta de Andalucia (Regional government): General Direction of Universities and co-funded by the Ayuntamiento de Huelva (City Council of Huelva). We strongly acknowledge the technical support given by A. Palmeiro from Nautilus Oceanica S.L., who filtered and processed the multibeam records. We also acknowledge the comments of three anonymous reviewers who contributed to substantially improving this article. The help of Alastair Peacocke regarding the English language also improved the original manuscrip |
| Databáze: | OpenAIRE |
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