(Table 2) Correlation of Mi zones with hiatuses in ODP Site 181-1124
Results from Ocean Drilling Program sites 1121-1124 show the Eastern New Zealand Oceanic Sedimentary System (ENZOSS) evolved in response to: (1) the inception of the circum-Antarctic circulation, (2) orbital and nonorbital regulation of the global thermohaline flow, and (3) development of the New Ze...
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.734910 2024-09-15T17:43:00+00:00 (Table 2) Correlation of Mi zones with hiatuses in ODP Site 181-1124 Carter, Lionel Carter, Robert M McCave, I Nick LATITUDE: -39.498283 * LONGITUDE: -176.531550 * DATE/TIME START: 1998-09-24T00:00:00 * DATE/TIME END: 1998-10-01T00:00:00 * MINIMUM ELEVATION: -3966.8 m * MAXIMUM ELEVATION: -3966.8 m 2004 text/tab-separated-values, 13 data points https://doi.pangaea.de/10.1594/PANGAEA.734910 https://doi.org/10.1594/PANGAEA.734910 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.734910 https://doi.org/10.1594/PANGAEA.734910 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess Supplement to: Carter, Lionel; Carter, Robert M; McCave, I Nick (2004): Evolution of the sedimentary system beneath the deep Pacific inflow of eastern New Zealand. Marine Geology, 205(1-4), 9-27, https://doi.org/10.1016/S0025-3227(04)00016-7 181-1124 AGE Age model optional Comment COMPCORE Composite Core Hiatus Joides Resolution Leg181 Ocean Drilling Program ODP South Pacific Ocean dataset 2004 ftpangaea https://doi.org/10.1594/PANGAEA.73491010.1016/S0025-3227(04)00016-7 2024-07-24T02:31:30Z Results from Ocean Drilling Program sites 1121-1124 show the Eastern New Zealand Oceanic Sedimentary System (ENZOSS) evolved in response to: (1) the inception of the circum-Antarctic circulation, (2) orbital and nonorbital regulation of the global thermohaline flow, and (3) development of the New Zealand plate boundary. ENZOSS began in the early Oligocene following opening of the Tasmanian gateway and inception of the ancestral Antarctic Circumpolar Current (ACC) and SW Pacific Deep Western Boundary Current (DWBC). Widespread erosion, marked by the Marshall Paraconformity, was followed by extensive drift formation in the late Oligocene- early Miocene. Alternating nannofossil chalk and nannofossil-rich mud deposited in response to 41-kyr orbital regulation of the abyssal circulation, with the mudstones representing times of increased inflow of corrosive southernsource waters. Drift deposition at the deepest sites was interrupted by bouts of erosion coincident with Mi 1-5 isotopic events signifying expansions of the East Antarctic Ice Sheet and enhanced bottom water formation. By late Miocene times, the basic ENZOSS was established. South of Bounty Trough, the energetic ACC instigated an erosional/low depositional regime. To the north, where the DWBC prevailed, orbitally regulated drift deposition continued. Increased convergence at the New Zealand plate boundary enhanced the terrigenous supply, but little of this sediment reached the deep ENZOSS as the three main sediment conduits - Solander, Bounty and Hikurangi channels - had not fully developed. The Plio-Pleistocene heralded a change from a carbonate- to terrigenous-dominant supply caused by interception of the DWBC by the three channels (~1.6 Ma for Bounty and Hikurangi, time of Solander interception unknown). The Solander and Bounty fans, and Hikurangi Fan-drift systems formed, and drifts downstream of those systems, received terrigenous detritus. Supply increased with accelerating uplift along the plate boundary, but delivery to the DWBC was regulated by ... Dataset Antarc* Antarctic Ice Sheet PANGAEA - Data Publisher for Earth & Environmental Science ENVELOPE(-176.531550,-176.531550,-39.498283,-39.498283) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
181-1124 AGE Age model optional Comment COMPCORE Composite Core Hiatus Joides Resolution Leg181 Ocean Drilling Program ODP South Pacific Ocean |
spellingShingle |
181-1124 AGE Age model optional Comment COMPCORE Composite Core Hiatus Joides Resolution Leg181 Ocean Drilling Program ODP South Pacific Ocean Carter, Lionel Carter, Robert M McCave, I Nick (Table 2) Correlation of Mi zones with hiatuses in ODP Site 181-1124 |
topic_facet |
181-1124 AGE Age model optional Comment COMPCORE Composite Core Hiatus Joides Resolution Leg181 Ocean Drilling Program ODP South Pacific Ocean |
description |
Results from Ocean Drilling Program sites 1121-1124 show the Eastern New Zealand Oceanic Sedimentary System (ENZOSS) evolved in response to: (1) the inception of the circum-Antarctic circulation, (2) orbital and nonorbital regulation of the global thermohaline flow, and (3) development of the New Zealand plate boundary. ENZOSS began in the early Oligocene following opening of the Tasmanian gateway and inception of the ancestral Antarctic Circumpolar Current (ACC) and SW Pacific Deep Western Boundary Current (DWBC). Widespread erosion, marked by the Marshall Paraconformity, was followed by extensive drift formation in the late Oligocene- early Miocene. Alternating nannofossil chalk and nannofossil-rich mud deposited in response to 41-kyr orbital regulation of the abyssal circulation, with the mudstones representing times of increased inflow of corrosive southernsource waters. Drift deposition at the deepest sites was interrupted by bouts of erosion coincident with Mi 1-5 isotopic events signifying expansions of the East Antarctic Ice Sheet and enhanced bottom water formation. By late Miocene times, the basic ENZOSS was established. South of Bounty Trough, the energetic ACC instigated an erosional/low depositional regime. To the north, where the DWBC prevailed, orbitally regulated drift deposition continued. Increased convergence at the New Zealand plate boundary enhanced the terrigenous supply, but little of this sediment reached the deep ENZOSS as the three main sediment conduits - Solander, Bounty and Hikurangi channels - had not fully developed. The Plio-Pleistocene heralded a change from a carbonate- to terrigenous-dominant supply caused by interception of the DWBC by the three channels (~1.6 Ma for Bounty and Hikurangi, time of Solander interception unknown). The Solander and Bounty fans, and Hikurangi Fan-drift systems formed, and drifts downstream of those systems, received terrigenous detritus. Supply increased with accelerating uplift along the plate boundary, but delivery to the DWBC was regulated by ... |
format |
Dataset |
author |
Carter, Lionel Carter, Robert M McCave, I Nick |
author_facet |
Carter, Lionel Carter, Robert M McCave, I Nick |
author_sort |
Carter, Lionel |
title |
(Table 2) Correlation of Mi zones with hiatuses in ODP Site 181-1124 |
title_short |
(Table 2) Correlation of Mi zones with hiatuses in ODP Site 181-1124 |
title_full |
(Table 2) Correlation of Mi zones with hiatuses in ODP Site 181-1124 |
title_fullStr |
(Table 2) Correlation of Mi zones with hiatuses in ODP Site 181-1124 |
title_full_unstemmed |
(Table 2) Correlation of Mi zones with hiatuses in ODP Site 181-1124 |
title_sort |
(table 2) correlation of mi zones with hiatuses in odp site 181-1124 |
publisher |
PANGAEA |
publishDate |
2004 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.734910 https://doi.org/10.1594/PANGAEA.734910 |
op_coverage |
LATITUDE: -39.498283 * LONGITUDE: -176.531550 * DATE/TIME START: 1998-09-24T00:00:00 * DATE/TIME END: 1998-10-01T00:00:00 * MINIMUM ELEVATION: -3966.8 m * MAXIMUM ELEVATION: -3966.8 m |
long_lat |
ENVELOPE(-176.531550,-176.531550,-39.498283,-39.498283) |
genre |
Antarc* Antarctic Ice Sheet |
genre_facet |
Antarc* Antarctic Ice Sheet |
op_source |
Supplement to: Carter, Lionel; Carter, Robert M; McCave, I Nick (2004): Evolution of the sedimentary system beneath the deep Pacific inflow of eastern New Zealand. Marine Geology, 205(1-4), 9-27, https://doi.org/10.1016/S0025-3227(04)00016-7 |
op_relation |
https://doi.pangaea.de/10.1594/PANGAEA.734910 https://doi.org/10.1594/PANGAEA.734910 |
op_rights |
CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1594/PANGAEA.73491010.1016/S0025-3227(04)00016-7 |
_version_ |
1810489815224811520 |