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Offshore sand and gravel mining

Offshore sand and gravel mining
Offshore sand and gravel mining
This is a general overview of marine sand and gravel extraction. The origin of the relict or modern resource and the nature of the deposits are described, together with the related hydrodynamic and sedimentological regimes. Some important variations between countries are stressed in the marine aggregates production and usage. Details are provided on the prospecting methods for the identification of new resources, with emphasis on the “state-of-the-art” sea bottom survey instrumentation. The article also focuses upon the principal techniques of extraction, that is, anchor and trailer suction dredging, and the associated features which are generated on the seabed (i.e., pits and furrows, respectively). The creation of such features, together with turbid plumes resulting from the extraction process, may induce significant environmental (physical and biological) impacts. These impacts are described in detail, while the recovery time of the changes is addressed. The article concludes with an overview of the supply and future of marine aggregate dredging.
655-662
Elsevier
Garel, Erwan
1abe47b5-da25-47c3-aa74-c80ab4295c82
Bonne, W.
3d7d050c-f1be-49db-b528-2351c661b9d1
Collins, Michael B.
3b70278b-0004-45e0-b3c9-0debdf0a9351
Peffer, Colby
4db91907-9387-4f29-a973-60ef9aa39510
Cochran, J. Kirk
Bokuniewicz, Henry J.
Yager, Patricia L.
Garel, Erwan
1abe47b5-da25-47c3-aa74-c80ab4295c82
Bonne, W.
3d7d050c-f1be-49db-b528-2351c661b9d1
Collins, Michael B.
3b70278b-0004-45e0-b3c9-0debdf0a9351
Peffer, Colby
4db91907-9387-4f29-a973-60ef9aa39510
Cochran, J. Kirk
Bokuniewicz, Henry J.
Yager, Patricia L.

Garel, Erwan, Bonne, W., Collins, Michael B. and Peffer, Colby (2019) Offshore sand and gravel mining. In, Cochran, J. Kirk, Bokuniewicz, Henry J. and Yager, Patricia L. (eds.) Encyclopedia of Ocean Sciences. Elsevier, pp. 655-662. (doi:10.1016/B978-0-12-409548-9.11392-2).

Record type: Book Section

Abstract

This is a general overview of marine sand and gravel extraction. The origin of the relict or modern resource and the nature of the deposits are described, together with the related hydrodynamic and sedimentological regimes. Some important variations between countries are stressed in the marine aggregates production and usage. Details are provided on the prospecting methods for the identification of new resources, with emphasis on the “state-of-the-art” sea bottom survey instrumentation. The article also focuses upon the principal techniques of extraction, that is, anchor and trailer suction dredging, and the associated features which are generated on the seabed (i.e., pits and furrows, respectively). The creation of such features, together with turbid plumes resulting from the extraction process, may induce significant environmental (physical and biological) impacts. These impacts are described in detail, while the recovery time of the changes is addressed. The article concludes with an overview of the supply and future of marine aggregate dredging.

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Published date: 2019

Identifiers

Local EPrints ID: 444431
URI: http://eprints.soton.ac.uk/id/eprint/444431
PURE UUID: c076d1e0-7419-4035-a2b5-17d0201de7e4

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Date deposited: 19 Oct 2020 16:31
Last modified: 19 Oct 2020 16:31

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Contributors

Author: Erwan Garel
Author: W. Bonne
Author: Michael B. Collins
Author: Colby Peffer
Editor: J. Kirk Cochran
Editor: Henry J. Bokuniewicz
Editor: Patricia L. Yager

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