Insolation-paced sea level and sediment flux during the early Pleistocene in Southeast Asia

Abstract Global marine archives from the early Pleistocene indicate that glacial-interglacial cycles, and their corresponding sea-level cycles, have predominantly a periodicity of ~ 41 kyrs driven by Earth’s obliquity. Here, we present a clastic shallow-marine record from the early Pleistocene in So...

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Autores principales:	Romain Vaucher, Shahin E. Dashtgard, Chorng-Shern Horng, Christian Zeeden, Antoine Dillinger, Yu-Yen Pan, Romy A. Setiaji, Wen-Rong Chi, Ludvig Löwemark
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/732f1782b7254c5494ded9ef472aff35
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spelling	oai:doaj.org-article:732f1782b7254c5494ded9ef472aff352021-12-02T17:08:44ZInsolation-paced sea level and sediment flux during the early Pleistocene in Southeast Asia10.1038/s41598-021-96372-x2045-2322https://doaj.org/article/732f1782b7254c5494ded9ef472aff352021-08-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-96372-xhttps://doaj.org/toc/2045-2322Abstract Global marine archives from the early Pleistocene indicate that glacial-interglacial cycles, and their corresponding sea-level cycles, have predominantly a periodicity of ~ 41 kyrs driven by Earth’s obliquity. Here, we present a clastic shallow-marine record from the early Pleistocene in Southeast Asia (Cholan Formation, Taiwan). The studied strata comprise stacked cyclic successions deposited in offshore to nearshore environments in the paleo-Taiwan Strait. The stratigraphy was compared to both a δ18O isotope record of benthic foraminifera and orbital parameters driving insolation at the time of deposition. Analyses indicate a strong correlation between depositional cycles and Northern Hemisphere summer insolation, which is precession-dominated with an obliquity component. Our results represent geological evidence of precession-dominated sea-level fluctuations during the early Pleistocene, independent of a global ice-volume proxy. Preservation of this signal is possible due to the high-accommodation creation and high-sedimentation rate in the basin enhancing the completeness of the stratigraphic record.Romain VaucherShahin E. DashtgardChorng-Shern HorngChristian ZeedenAntoine DillingerYu-Yen PanRomy A. SetiajiWen-Rong ChiLudvig LöwemarkNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-11 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Romain Vaucher Shahin E. Dashtgard Chorng-Shern Horng Christian Zeeden Antoine Dillinger Yu-Yen Pan Romy A. Setiaji Wen-Rong Chi Ludvig Löwemark Insolation-paced sea level and sediment flux during the early Pleistocene in Southeast Asia
description	Abstract Global marine archives from the early Pleistocene indicate that glacial-interglacial cycles, and their corresponding sea-level cycles, have predominantly a periodicity of ~ 41 kyrs driven by Earth’s obliquity. Here, we present a clastic shallow-marine record from the early Pleistocene in Southeast Asia (Cholan Formation, Taiwan). The studied strata comprise stacked cyclic successions deposited in offshore to nearshore environments in the paleo-Taiwan Strait. The stratigraphy was compared to both a δ18O isotope record of benthic foraminifera and orbital parameters driving insolation at the time of deposition. Analyses indicate a strong correlation between depositional cycles and Northern Hemisphere summer insolation, which is precession-dominated with an obliquity component. Our results represent geological evidence of precession-dominated sea-level fluctuations during the early Pleistocene, independent of a global ice-volume proxy. Preservation of this signal is possible due to the high-accommodation creation and high-sedimentation rate in the basin enhancing the completeness of the stratigraphic record.
format	article
author	Romain Vaucher Shahin E. Dashtgard Chorng-Shern Horng Christian Zeeden Antoine Dillinger Yu-Yen Pan Romy A. Setiaji Wen-Rong Chi Ludvig Löwemark
author_facet	Romain Vaucher Shahin E. Dashtgard Chorng-Shern Horng Christian Zeeden Antoine Dillinger Yu-Yen Pan Romy A. Setiaji Wen-Rong Chi Ludvig Löwemark
author_sort	Romain Vaucher
title	Insolation-paced sea level and sediment flux during the early Pleistocene in Southeast Asia
title_short	Insolation-paced sea level and sediment flux during the early Pleistocene in Southeast Asia
title_full	Insolation-paced sea level and sediment flux during the early Pleistocene in Southeast Asia
title_fullStr	Insolation-paced sea level and sediment flux during the early Pleistocene in Southeast Asia
title_full_unstemmed	Insolation-paced sea level and sediment flux during the early Pleistocene in Southeast Asia
title_sort	insolation-paced sea level and sediment flux during the early pleistocene in southeast asia
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/732f1782b7254c5494ded9ef472aff35
work_keys_str_mv	AT romainvaucher insolationpacedsealevelandsedimentfluxduringtheearlypleistoceneinsoutheastasia AT shahinedashtgard insolationpacedsealevelandsedimentfluxduringtheearlypleistoceneinsoutheastasia AT chorngshernhorng insolationpacedsealevelandsedimentfluxduringtheearlypleistoceneinsoutheastasia AT christianzeeden insolationpacedsealevelandsedimentfluxduringtheearlypleistoceneinsoutheastasia AT antoinedillinger insolationpacedsealevelandsedimentfluxduringtheearlypleistoceneinsoutheastasia AT yuyenpan insolationpacedsealevelandsedimentfluxduringtheearlypleistoceneinsoutheastasia AT romyasetiaji insolationpacedsealevelandsedimentfluxduringtheearlypleistoceneinsoutheastasia AT wenrongchi insolationpacedsealevelandsedimentfluxduringtheearlypleistoceneinsoutheastasia AT ludviglowemark insolationpacedsealevelandsedimentfluxduringtheearlypleistoceneinsoutheastasia
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Insolation-paced sea level and sediment flux during the early Pleistocene in Southeast Asia

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