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Large igneous provinces and scientific ocean drilling: status quo and a look ahead

Large igneous provinces and scientific ocean drilling: status quo and a look ahead
Large igneous provinces and scientific ocean drilling: status quo and a look ahead
A rich mosaic of disparate crustal types characterizes the Earth beneath the sea. Although “normal” oceanic crust approximately 7-km thick is by far the most prevalent, abnormally thick oceanic-type crust of large igneous provinces (LIPs) also forms a significant component of the marine realm (e.g., Coffin and Eldholm, 1994; Mahoney and Coffin, 1997; Saunders, 2005). Scientific ocean drilling has significantly advanced understanding of LIPs. Herein we focus on significant outcomes of ten LIP-dedicated expeditions between 1985 and 2000 and also highlight prospects for future drilling efforts. The ten expeditions include three to the volcanic margins of the North Atlantic Tertiary Igneous Province, four to the Kerguelen Plateau/Broken Ridge LIP in the Indian Ocean, two to the Ontong Java Plateau in the western equatorial Pacific Ocean, and one to the Chagos-Maldive-Laccadive Ridge and Mascarene Plateau in the Indian Ocean (Table 1). Complementary geophysical and/or onshore geological investigations have added significant value to all of these expeditions.
1042-8275
150-160
Coffin, M.F.
b8285650-5efd-4129-ae91-1cf3f5911e89
Duncan, R.A.
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Eldholm, O.
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Fitton, J.G.
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Frey, F.A.
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Larsen, H.C.
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Mahoney, J.J.
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Saunders, A.D.
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Schlich, R.
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Wallace, P.J.
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Coffin, M.F.
b8285650-5efd-4129-ae91-1cf3f5911e89
Duncan, R.A.
a092aea5-f9ad-4617-9dd9-060e318120c7
Eldholm, O.
5be5f193-48f6-4842-9b53-9fb4df5b6b07
Fitton, J.G.
2cea91e8-0de0-46db-8cb0-f244a498c300
Frey, F.A.
e0083183-8374-4b03-b145-2ff3b27fa802
Larsen, H.C.
51d09329-5f44-451d-badb-77a63804f14b
Mahoney, J.J.
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Saunders, A.D.
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Schlich, R.
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Wallace, P.J.
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Coffin, M.F., Duncan, R.A., Eldholm, O., Fitton, J.G., Frey, F.A., Larsen, H.C., Mahoney, J.J., Saunders, A.D., Schlich, R. and Wallace, P.J. (2006) Large igneous provinces and scientific ocean drilling: status quo and a look ahead. Oceanography, 19 (4), 150-160.

Record type: Article

Abstract

A rich mosaic of disparate crustal types characterizes the Earth beneath the sea. Although “normal” oceanic crust approximately 7-km thick is by far the most prevalent, abnormally thick oceanic-type crust of large igneous provinces (LIPs) also forms a significant component of the marine realm (e.g., Coffin and Eldholm, 1994; Mahoney and Coffin, 1997; Saunders, 2005). Scientific ocean drilling has significantly advanced understanding of LIPs. Herein we focus on significant outcomes of ten LIP-dedicated expeditions between 1985 and 2000 and also highlight prospects for future drilling efforts. The ten expeditions include three to the volcanic margins of the North Atlantic Tertiary Igneous Province, four to the Kerguelen Plateau/Broken Ridge LIP in the Indian Ocean, two to the Ontong Java Plateau in the western equatorial Pacific Ocean, and one to the Chagos-Maldive-Laccadive Ridge and Mascarene Plateau in the Indian Ocean (Table 1). Complementary geophysical and/or onshore geological investigations have added significant value to all of these expeditions.

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Published date: 2006

Identifiers

Local EPrints ID: 52471
URI: https://eprints.soton.ac.uk/id/eprint/52471
ISSN: 1042-8275
PURE UUID: 39da29ce-601e-4d3d-ba7a-86fa049363d6

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Date deposited: 30 Jun 2008
Last modified: 13 Mar 2019 20:42

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Contributors

Author: M.F. Coffin
Author: R.A. Duncan
Author: O. Eldholm
Author: J.G. Fitton
Author: F.A. Frey
Author: H.C. Larsen
Author: J.J. Mahoney
Author: A.D. Saunders
Author: R. Schlich
Author: P.J. Wallace

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