A 60 000-year record of environmental change for the Wet Tropics of north-eastern Australia based on the ODP 820 marine core

Moss, PT; Dunbar, GB; Thomas, Z; Turney, C; Kershaw, AP; Jacobsen, GE

A 60 000-year record of environmental change for the Wet Tropics of north-eastern Australia based on the ODP 820 marine core

Moss, PT Dunbar, GB Thomas, Z Turney, C

Kershaw, AP Jacobsen, GE

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Publisher:: Wiley
Publication Type:: Journal Article
Citation:: Journal of Quaternary Science, 2017, 32, (6), pp. 704-716
Issue Date:: 2017-08-01

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Field	Value	Language
dc.contributor.author	Moss, PT
dc.contributor.author	Dunbar, GB
dc.contributor.author	Thomas, Z
dc.contributor.author	Turney, C https://orcid.org/0000-0001-6733-0993
dc.contributor.author	Kershaw, AP
dc.contributor.author	Jacobsen, GE
dc.date.accessioned	2022-09-22T00:12:28Z
dc.date.available	2022-09-22T00:12:28Z
dc.date.issued	2017-08-01
dc.identifier.citation	Journal of Quaternary Science, 2017, 32, (6), pp. 704-716
dc.identifier.issn	0267-8179
dc.identifier.issn	1099-1417
dc.identifier.uri	http://hdl.handle.net/10453/161971
dc.description.abstract	Palynomorphs from the ODP Site 820 marine core have provided a detailed record of terrestrial environmental responses to glacial–interglacial forcing over the last 250 000 years in the Australian Wet Tropics. The development of an accurate geochronological framework for this key sequence has proved challenging. Consequently, different dominant forcing mechanism(s) have been proposed to drive environmental change in the low latitudes. A new chronology for the last 60 000 years, based on accelerator mass spectrometry radiocarbon (14C) dates of pollen concentrate material and the existing Marine Isotope Stage boundaries (MIS 4 to 1) has been produced. This new chronology provides a robust geochronological framework for interpreting environmental records across the region. In particular, our age model helps to resolve several debates concerning the timing of climatic changes and their impacts on both the marine and the terrestrial systems, as well as possible human arrival and associated impacts on the region's ecosystems. Our findings suggest 14C dating of terrestrial pollen concentrate in marine sediments is a valuable tool for resolving major chronological uncertainties in potentially diagenetically altered marine CaCO3 sediments and should play a role in future multi-dating strategies. Copyright © 2017 John Wiley & Sons, Ltd.
dc.language	en
dc.publisher	Wiley
dc.relation.ispartof	Journal of Quaternary Science
dc.relation.isbasedon	10.1002/jqs.2977
dc.rights	info:eu-repo/semantics/closedAccess
dc.subject	0403 Geology, 0406 Physical Geography and Environmental Geoscience, 2101 Archaeology
dc.subject.classification	Paleontology
dc.title	A 60 000-year record of environmental change for the Wet Tropics of north-eastern Australia based on the ODP 820 marine core
dc.type	Journal Article
utslib.citation.volume	32
utslib.for	0403 Geology
utslib.for	0406 Physical Geography and Environmental Geoscience
utslib.for	2101 Archaeology
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/DVC (Research)
utslib.copyright.status	closed_access	*
dc.date.updated	2022-09-22T00:12:26Z
pubs.issue	6
pubs.publication-status	Published
pubs.volume	32
utslib.citation.issue	6

Abstract:

Palynomorphs from the ODP Site 820 marine core have provided a detailed record of terrestrial environmental responses to glacial–interglacial forcing over the last 250 000 years in the Australian Wet Tropics. The development of an accurate geochronological framework for this key sequence has proved challenging. Consequently, different dominant forcing mechanism(s) have been proposed to drive environmental change in the low latitudes. A new chronology for the last 60 000 years, based on accelerator mass spectrometry radiocarbon (14C) dates of pollen concentrate material and the existing Marine Isotope Stage boundaries (MIS 4 to 1) has been produced. This new chronology provides a robust geochronological framework for interpreting environmental records across the region. In particular, our age model helps to resolve several debates concerning the timing of climatic changes and their impacts on both the marine and the terrestrial systems, as well as possible human arrival and associated impacts on the region's ecosystems. Our findings suggest 14C dating of terrestrial pollen concentrate in marine sediments is a valuable tool for resolving major chronological uncertainties in potentially diagenetically altered marine CaCO3 sediments and should play a role in future multi-dating strategies. Copyright © 2017 John Wiley & Sons, Ltd.

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http://hdl.handle.net/10453/161971