Preprints
https://doi.org/10.5194/essd-2020-261
https://doi.org/10.5194/essd-2020-261

  24 Nov 2020

24 Nov 2020

Review status: this preprint is currently under review for the journal ESSD.

A standardized database of Marine Isotopic Stage 5e sea-level proxies on tropical Pacific Islands

Nadine Hallmann1, Gilbert Camoin1, Jody M. Webster2, and Marc Humblet3 Nadine Hallmann et al.
  • 1Aix-Marseille Université, CNRS, IRD, INRAE, Coll France, CEREGE, Europôle Méditerranéen de l'Arbois, BP80, 13545 Aix-en-Provence cedex 4, France
  • 2Geocoastal Research Group, School of Geosciences, The University of Sydney, Sydney, New South Wales 2006, Australia
  • 3Department of Earth and Planetary Sciences, Graduate School of Environmental Studies, Nagoya University, Nagoya 464-8601, Japan

Abstract. Marine isotope stage 5 deposits have been reported on many tropical Pacific islands. This paper presents a database compiled through the review of MIS 5e (Last Interglacial – LIG) coral reef records from islands belonging to French Polynesia (Anaa, Niau, Makatea, Moruroa, Takapoto, Bora Bora), the Hawaiian Islands (Oahu, Lana'i, Midway Atoll), Tuvalu, Kiribati (Christmas Island, Tarawa), the Cook Islands (Mangaia, Atiu, Mitiaro, Mauke, Pukapuka, Rakahanga, Rarotonga), Tonga, Samoa, the Federal States of Micronesia, the Mariana Islands, the Marshall Islands (Enewetak, Bikini), New Caledonia, Papua New Guinea, Vanuatu, Fiji and Niue. Studies reporting other sea-level indicators dated to other Pleistocene interglacials and Holocene sea-level indicators were not inserted in the database, but are included in this data description paper for completeness. Overall, about 300 studies concerning Pleistocene and Holocene sea-level indicators have been reviewed, and finally 284 data points from 35 studies on the MIS 5e have been inserted in the database. The main sea-level indicators include emerged coral reef terraces, but also reef units recovered in drill cores from a few islands, thus reflecting the diversity of tectonic settings and sampling approaches. Future research should be directed towards better constrained relative sea-level (RSL) reconstructions, including more precise chronological data, more accurate elevation measurements as well as a better refinement of the palaeo-water depth significance of coralgal assemblages. The database for Tropical Pacific Islands is available open-access at this link: http://doi.org/10.5281/zenodo.3991672 (Hallmann and Camoin, 2020).

Nadine Hallmann et al.

 
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Nadine Hallmann et al.

Nadine Hallmann et al.

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Short summary
This paper presents a database compiled through the review of Marine isotope stage 5e (Last Interglacial – LIG) coral reef records from several tropical Pacific islands. Overall, 284 data points from 35 studies on the MIS 5e have been inserted in the database. The main sea-level indicators include emerged coral reef terraces, but also reef units recovered in drill cores from a few islands, thus reflecting the diversity of tectonic settings and sampling approaches.