Sedimentary Regimes at the Macquarie Ridge Complex: Interaction of Southern Ocean Circulation and Plate Boundary Bathymetry
Seafloor structure at the Macquarie Ridge Complex strongly influences the intensity and circulation pattern of ocean currents south of New Zealand. New marine geophysical data show heterogeneous sedimentary environments on Macquarie seafloor that reflect interaction of highly variable bathymetry wit...
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ftnerc:oai:nora.nerc.ac.uk:152438 2023-05-15T13:48:07+02:00 Sedimentary Regimes at the Macquarie Ridge Complex: Interaction of Southern Ocean Circulation and Plate Boundary Bathymetry Schuur, C.L. Coffin, M.F. Frohlich, C. Massell, C.G. Karner, G.D. Ramsay, D. Caress, D.W. 1998 http://nora.nerc.ac.uk/id/eprint/152438/ http://www.agu.org/pubs/crossref/1998/98PA02357.shtml unknown Schuur, C.L.; Coffin, M.F.; Frohlich, C.; Massell, C.G.; Karner, G.D.; Ramsay, D.; Caress, D.W. 1998 Sedimentary Regimes at the Macquarie Ridge Complex: Interaction of Southern Ocean Circulation and Plate Boundary Bathymetry. Palaeoceanography, 13 (3). 646-670. Publication - Article PeerReviewed 1998 ftnerc 2023-02-04T19:35:01Z Seafloor structure at the Macquarie Ridge Complex strongly influences the intensity and circulation pattern of ocean currents south of New Zealand. New marine geophysical data show heterogeneous sedimentary environments on Macquarie seafloor that reflect interaction of highly variable bathymetry with the Antarctic Circumpolar Current and north flowing Antarctic Bottom Water. Acoustic backscatter, bathymetry, and seismic reflection data collected aboard R/V Rig Seismic in 1994 show five bathymetrically constrained sedimentary provinces flanking the ridge complex: (1) northwest Macquarie hemipelagic drifts, (2) current-modified Solander submarine fan complex, (3) southwest Macquarie manganese nodule province, (4) Emerald Basin pelagic drift province, and (5) sediment-free oceanic crust related to the 53.5°S passage in the Macquarie Ridge Complex. The late Miocene-Pliocene opening of a 53.5°S passage in the ridge complex caused a major increase in the intensity of ocean current circulation, sediment reworking, and erosion in all sedimentary provinces. Article in Journal/Newspaper Antarc* Antarctic Southern Ocean Natural Environment Research Council: NERC Open Research Archive Antarctic Southern Ocean The Antarctic New Zealand Emerald Basin ENVELOPE(162.500,162.500,-54.000,-54.000) |
institution |
Open Polar |
collection |
Natural Environment Research Council: NERC Open Research Archive |
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ftnerc |
language |
unknown |
description |
Seafloor structure at the Macquarie Ridge Complex strongly influences the intensity and circulation pattern of ocean currents south of New Zealand. New marine geophysical data show heterogeneous sedimentary environments on Macquarie seafloor that reflect interaction of highly variable bathymetry with the Antarctic Circumpolar Current and north flowing Antarctic Bottom Water. Acoustic backscatter, bathymetry, and seismic reflection data collected aboard R/V Rig Seismic in 1994 show five bathymetrically constrained sedimentary provinces flanking the ridge complex: (1) northwest Macquarie hemipelagic drifts, (2) current-modified Solander submarine fan complex, (3) southwest Macquarie manganese nodule province, (4) Emerald Basin pelagic drift province, and (5) sediment-free oceanic crust related to the 53.5°S passage in the Macquarie Ridge Complex. The late Miocene-Pliocene opening of a 53.5°S passage in the ridge complex caused a major increase in the intensity of ocean current circulation, sediment reworking, and erosion in all sedimentary provinces. |
format |
Article in Journal/Newspaper |
author |
Schuur, C.L. Coffin, M.F. Frohlich, C. Massell, C.G. Karner, G.D. Ramsay, D. Caress, D.W. |
spellingShingle |
Schuur, C.L. Coffin, M.F. Frohlich, C. Massell, C.G. Karner, G.D. Ramsay, D. Caress, D.W. Sedimentary Regimes at the Macquarie Ridge Complex: Interaction of Southern Ocean Circulation and Plate Boundary Bathymetry |
author_facet |
Schuur, C.L. Coffin, M.F. Frohlich, C. Massell, C.G. Karner, G.D. Ramsay, D. Caress, D.W. |
author_sort |
Schuur, C.L. |
title |
Sedimentary Regimes at the Macquarie Ridge Complex: Interaction of Southern Ocean Circulation and Plate Boundary Bathymetry |
title_short |
Sedimentary Regimes at the Macquarie Ridge Complex: Interaction of Southern Ocean Circulation and Plate Boundary Bathymetry |
title_full |
Sedimentary Regimes at the Macquarie Ridge Complex: Interaction of Southern Ocean Circulation and Plate Boundary Bathymetry |
title_fullStr |
Sedimentary Regimes at the Macquarie Ridge Complex: Interaction of Southern Ocean Circulation and Plate Boundary Bathymetry |
title_full_unstemmed |
Sedimentary Regimes at the Macquarie Ridge Complex: Interaction of Southern Ocean Circulation and Plate Boundary Bathymetry |
title_sort |
sedimentary regimes at the macquarie ridge complex: interaction of southern ocean circulation and plate boundary bathymetry |
publishDate |
1998 |
url |
http://nora.nerc.ac.uk/id/eprint/152438/ http://www.agu.org/pubs/crossref/1998/98PA02357.shtml |
long_lat |
ENVELOPE(162.500,162.500,-54.000,-54.000) |
geographic |
Antarctic Southern Ocean The Antarctic New Zealand Emerald Basin |
geographic_facet |
Antarctic Southern Ocean The Antarctic New Zealand Emerald Basin |
genre |
Antarc* Antarctic Southern Ocean |
genre_facet |
Antarc* Antarctic Southern Ocean |
op_relation |
Schuur, C.L.; Coffin, M.F.; Frohlich, C.; Massell, C.G.; Karner, G.D.; Ramsay, D.; Caress, D.W. 1998 Sedimentary Regimes at the Macquarie Ridge Complex: Interaction of Southern Ocean Circulation and Plate Boundary Bathymetry. Palaeoceanography, 13 (3). 646-670. |
_version_ |
1766248614815858688 |