Coupled Climate and sea-level changes deduced from Huon Peninsula coral terraces of the last ice age
Huon Peninsula, Papua New Guinea, is a tectonically unstable, uplifting shoreline ringed by emergent coral terraces. The terraces were formed during episodes of rapid sea-level rise when corals constructed large, discrete coral platforms that were subsequently uplifted. Uranium series ages of four p...
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ftanucanberra:oai:digitalcollections.anu.edu.au:1885/92711 2023-05-15T13:56:14+02:00 Coupled Climate and sea-level changes deduced from Huon Peninsula coral terraces of the last ice age Yokoyama, Yusuke Esat, Tezer Lambeck, Kurt 2015-12-13T23:26:09Z http://hdl.handle.net/1885/92711 unknown Elsevier 0012-821X http://hdl.handle.net/1885/92711 Earth and Planetary Science Letters Keywords: climate change coral Heinrich event Last Glacial Quaternary sea level change Papua New Guinea Absolute age Anthozoa Heinrich events Sea-Level changes Uranium disequilibrium Journal article 2015 ftanucanberra 2015-12-21T23:59:18Z Huon Peninsula, Papua New Guinea, is a tectonically unstable, uplifting shoreline ringed by emergent coral terraces. The terraces were formed during episodes of rapid sea-level rise when corals constructed large, discrete coral platforms that were subsequently uplifted. Uranium series ages of four prominent Huon Peninsula last glacial (OIS 3) coral terraces coincide with the timing of major North Atlantic climate reversals at intervals of 6000-7000 yr between 30 000 yr and 60 000 yr ago. Terrace elevations, when combined with uplift, indicate 10-15-m high sea-level excursions at these times. We attribute the growth of the terraces directly to sea-level rises arising from ice-calving episodes from major North Atlantic ice-sheets and the Antarctic ice-sheet that precipitated extremes of cold climate called Heinrich events. These periods are associated with major discharges of land-based ice and enhanced concentrations of ice-rafted debris in deep-sea cores. Sea-levels at this time were 60-90 m lower than present. Article in Journal/Newspaper Antarc* Antarctic Ice Sheet North Atlantic Australian National University: ANU Digital Collections Antarctic Huon ENVELOPE(-57.998,-57.998,-63.367,-63.367) The Antarctic |
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Open Polar |
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Australian National University: ANU Digital Collections |
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ftanucanberra |
language |
unknown |
topic |
Keywords: climate change coral Heinrich event Last Glacial Quaternary sea level change Papua New Guinea Absolute age Anthozoa Heinrich events Sea-Level changes Uranium disequilibrium |
spellingShingle |
Keywords: climate change coral Heinrich event Last Glacial Quaternary sea level change Papua New Guinea Absolute age Anthozoa Heinrich events Sea-Level changes Uranium disequilibrium Yokoyama, Yusuke Esat, Tezer Lambeck, Kurt Coupled Climate and sea-level changes deduced from Huon Peninsula coral terraces of the last ice age |
topic_facet |
Keywords: climate change coral Heinrich event Last Glacial Quaternary sea level change Papua New Guinea Absolute age Anthozoa Heinrich events Sea-Level changes Uranium disequilibrium |
description |
Huon Peninsula, Papua New Guinea, is a tectonically unstable, uplifting shoreline ringed by emergent coral terraces. The terraces were formed during episodes of rapid sea-level rise when corals constructed large, discrete coral platforms that were subsequently uplifted. Uranium series ages of four prominent Huon Peninsula last glacial (OIS 3) coral terraces coincide with the timing of major North Atlantic climate reversals at intervals of 6000-7000 yr between 30 000 yr and 60 000 yr ago. Terrace elevations, when combined with uplift, indicate 10-15-m high sea-level excursions at these times. We attribute the growth of the terraces directly to sea-level rises arising from ice-calving episodes from major North Atlantic ice-sheets and the Antarctic ice-sheet that precipitated extremes of cold climate called Heinrich events. These periods are associated with major discharges of land-based ice and enhanced concentrations of ice-rafted debris in deep-sea cores. Sea-levels at this time were 60-90 m lower than present. |
format |
Article in Journal/Newspaper |
author |
Yokoyama, Yusuke Esat, Tezer Lambeck, Kurt |
author_facet |
Yokoyama, Yusuke Esat, Tezer Lambeck, Kurt |
author_sort |
Yokoyama, Yusuke |
title |
Coupled Climate and sea-level changes deduced from Huon Peninsula coral terraces of the last ice age |
title_short |
Coupled Climate and sea-level changes deduced from Huon Peninsula coral terraces of the last ice age |
title_full |
Coupled Climate and sea-level changes deduced from Huon Peninsula coral terraces of the last ice age |
title_fullStr |
Coupled Climate and sea-level changes deduced from Huon Peninsula coral terraces of the last ice age |
title_full_unstemmed |
Coupled Climate and sea-level changes deduced from Huon Peninsula coral terraces of the last ice age |
title_sort |
coupled climate and sea-level changes deduced from huon peninsula coral terraces of the last ice age |
publisher |
Elsevier |
publishDate |
2015 |
url |
http://hdl.handle.net/1885/92711 |
long_lat |
ENVELOPE(-57.998,-57.998,-63.367,-63.367) |
geographic |
Antarctic Huon The Antarctic |
geographic_facet |
Antarctic Huon The Antarctic |
genre |
Antarc* Antarctic Ice Sheet North Atlantic |
genre_facet |
Antarc* Antarctic Ice Sheet North Atlantic |
op_source |
Earth and Planetary Science Letters |
op_relation |
0012-821X http://hdl.handle.net/1885/92711 |
_version_ |
1766263604719386624 |