Relative sea-level stability and the radiocarbon marine reservoir correction at Natuna island, Indonesia, since 6400 yr BP
A high-precision relative sea level (RSL) record over the past 6400 years, reconstructed from fossil coral microatoll colonies, is reported for Natuna Island, Indonesia. The timing of 11 fossil microatolls from four sites on Natuna Island is constrained by replicate 14C and 230Th dates. We investiga...
| Main Authors: | , , , , , , , , |
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| Format: | Journal Article |
| Language: | English |
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2021
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| Online Access: | https://hdl.handle.net/10356/153037 |
| _version_ | 1826120299133796352 |
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| author | Wan, Jeannette Xiu Wen Meltzner, Aron J. Switzer, Adam D. Lin, Ke Wang, Xianfeng Bradley, Sarah L. Natawidjaja, Danny H. Suwargadi, Bambang W. Horton, Benjamin Peter |
| author2 | Asian School of the Environment |
| author_facet | Asian School of the Environment Wan, Jeannette Xiu Wen Meltzner, Aron J. Switzer, Adam D. Lin, Ke Wang, Xianfeng Bradley, Sarah L. Natawidjaja, Danny H. Suwargadi, Bambang W. Horton, Benjamin Peter |
| author_sort | Wan, Jeannette Xiu Wen |
| collection | NTU |
| description | A high-precision relative sea level (RSL) record over the past 6400 years, reconstructed from fossil coral microatoll colonies, is reported for Natuna Island, Indonesia. The timing of 11 fossil microatolls from four sites on Natuna Island is constrained by replicate 14C and 230Th dates. We investigate the local marine reservoir correction (∆R) using the replicate dates. The two sets of dates become aligned if a Marine20 ∆R of −143 ± 176 yr, 1σ (Marine13 ∆R of 15 ± 63 yr) is assigned to the 14C dates. The distribution of microatoll ages and elevations indicates that RSL was relatively stable from 6400 to 1400 yr BP at 0.2–0.7 ± 0.4 m (2σ) higher than present, before a fall to current levels. A comparison with the predictions of a suite of glacial isostatic adjustment (GIA) models for Southeast Asia suggests refinements are needed in ice-history models to fully capture our RSL data. These new constraints on past RSL of the Sunda Shelf contribute to further calibration of GIA models in the tropics, where RSL data are presently insufficient. |
| first_indexed | 2024-10-01T05:14:13Z |
| format | Journal Article |
| id | ntu-10356/153037 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T05:14:13Z |
| publishDate | 2021 |
| record_format | dspace |
| spelling | ntu-10356/1530372021-11-06T20:10:53Z Relative sea-level stability and the radiocarbon marine reservoir correction at Natuna island, Indonesia, since 6400 yr BP Wan, Jeannette Xiu Wen Meltzner, Aron J. Switzer, Adam D. Lin, Ke Wang, Xianfeng Bradley, Sarah L. Natawidjaja, Danny H. Suwargadi, Bambang W. Horton, Benjamin Peter Asian School of the Environment Earth Observatory of Singapore Science::Geology Holocene Relative Sea Level Sunda Shelf Coral Microatoll Radiocarbon Marine Reservoir Correction A high-precision relative sea level (RSL) record over the past 6400 years, reconstructed from fossil coral microatoll colonies, is reported for Natuna Island, Indonesia. The timing of 11 fossil microatolls from four sites on Natuna Island is constrained by replicate 14C and 230Th dates. We investigate the local marine reservoir correction (∆R) using the replicate dates. The two sets of dates become aligned if a Marine20 ∆R of −143 ± 176 yr, 1σ (Marine13 ∆R of 15 ± 63 yr) is assigned to the 14C dates. The distribution of microatoll ages and elevations indicates that RSL was relatively stable from 6400 to 1400 yr BP at 0.2–0.7 ± 0.4 m (2σ) higher than present, before a fall to current levels. A comparison with the predictions of a suite of glacial isostatic adjustment (GIA) models for Southeast Asia suggests refinements are needed in ice-history models to fully capture our RSL data. These new constraints on past RSL of the Sunda Shelf contribute to further calibration of GIA models in the tropics, where RSL data are presently insufficient. Ministry of Education (MOE) National Research Foundation (NRF) Published version Primary funding for this work came from the National Research Foundation Singapore and the Singapore Ministry of Education under the Research Centres of Excellence initiative. This research was also supported by the National Research Foundation Singapore under its Singapore NRF Fellowship scheme (Awards NRF-RF2010-04 to A.D.S., NRF-NRF2011-08 to X.W., and NRF-NRFF11-2019-0008 to A.J.M.). B.P.H. was supported by the Singapore Ministry of Education Academic Research Fund (Awards MOE2018-T2-1-030 and MOE2019-T3-1-004). S.L.B. acknowledges support from the European Research Council (Award ERC-StG-678145-CoupledIceClim). 2021-11-03T05:35:18Z 2021-11-03T05:35:18Z 2020 Journal Article Wan, J. X. W., Meltzner, A. J., Switzer, A. D., Lin, K., Wang, X., Bradley, S. L., Natawidjaja, D. H., Suwargadi, B. W. & Horton, B. P. (2020). Relative sea-level stability and the radiocarbon marine reservoir correction at Natuna island, Indonesia, since 6400 yr BP. Marine Geology, 430, 106342-. https://dx.doi.org/10.1016/j.margeo.2020.106342 0025-3227 https://hdl.handle.net/10356/153037 10.1016/j.margeo.2020.106342 2-s2.0-85095434278 430 106342 en NRF-RF2010-04 NRF-NRF2011-08 NRF-NRFF11-2019-0008 MOE2018-T2-1-030 MOE2019-T3-1-004 Marine Geology 10.21979/N9/EOFRNH © 2020 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/). application/pdf |
| spellingShingle | Science::Geology Holocene Relative Sea Level Sunda Shelf Coral Microatoll Radiocarbon Marine Reservoir Correction Wan, Jeannette Xiu Wen Meltzner, Aron J. Switzer, Adam D. Lin, Ke Wang, Xianfeng Bradley, Sarah L. Natawidjaja, Danny H. Suwargadi, Bambang W. Horton, Benjamin Peter Relative sea-level stability and the radiocarbon marine reservoir correction at Natuna island, Indonesia, since 6400 yr BP |
| title | Relative sea-level stability and the radiocarbon marine reservoir correction at Natuna island, Indonesia, since 6400 yr BP |
| title_full | Relative sea-level stability and the radiocarbon marine reservoir correction at Natuna island, Indonesia, since 6400 yr BP |
| title_fullStr | Relative sea-level stability and the radiocarbon marine reservoir correction at Natuna island, Indonesia, since 6400 yr BP |
| title_full_unstemmed | Relative sea-level stability and the radiocarbon marine reservoir correction at Natuna island, Indonesia, since 6400 yr BP |
| title_short | Relative sea-level stability and the radiocarbon marine reservoir correction at Natuna island, Indonesia, since 6400 yr BP |
| title_sort | relative sea level stability and the radiocarbon marine reservoir correction at natuna island indonesia since 6400 yr bp |
| topic | Science::Geology Holocene Relative Sea Level Sunda Shelf Coral Microatoll Radiocarbon Marine Reservoir Correction |
| url | https://hdl.handle.net/10356/153037 |
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