Revisiting Battistini
Pleistocene Coastal Evolution of Southwestern Madagascar
Bibliographic Data
| ID | 6095733 |
|---|---|
| Authors | Patrick Boyden (0000-0002-2757-7761, University of Bremen, corresponding author), Jennifer Weil-Accardo (0000-0002-3512-8536, Aix-Marseille Université), Pierre Deschamps (0000-0003-1687-3765, Aix-Marseille Université), Nicolas Godeau (0000-0003-4697-4938, Aix-Marseille Université), Nicolas Jaosedy, Abel Guihou (0000-0001-7347-378X, Aix-Marseille Université), Mamy Nirina Rajaonarivelo, Michael O''Leary (0000-0001-7040-3137, The University of Western Australia), Marc Humblet (0000-0002-8779-9948, Nagoya University), Alessio Rovere (0000-0001-5575-1168, University of Bremen) |
| Year | 2022 |
| Volume | 8 |
| Publication date | 2022-12-27 |
| Peer Reviewed | Yes |
| Open Access | Yes |
| Type | ARTICLE |
| Venue | Open Quaternary (JOURNAL) |
| Journal identifiers | ISSN: 2055-298X • E-ISSN: 2055-298X |
| Publisher | Ubiquity Press (PUBLISHER • GB) |
| DOI | 10.5334/oq.112 |
| OpenAlex | W4312847554 |
| Language | EN |
| Citations received | 1 |
| References cited | 38 |
The study of paleo shorelines, particularly of those formed during the late Quaternary, provides robust insights into past climate variability. Advances in surveying techniques and chronological methodologies have dramatically improved the inter-comparability of regional and basin-wide paleo shoreline surveys. However, these advances have been applied unevenly across the globe. This is especially true in southwestern Madagascar, where, in the 1960s and 1970s, emerged Pleistocene beach and reef facies were first described in detail and dated to Marine Isotope Stage (MIS) 5a using U-Th alpha activity counting by french geologist René Battistini. Now, 50 years on, no further analysis of the coastal sequence has been made. In this study, we present an updated late Pleistocene coastal evolution model for the southwestern Madagascar coast. Utilizing a combination of Structure-from-Motion/Multi-View Stereo techniques and differential Global Navigation Satellite System surveys, we have created five high-resolution 3D outcrop reconstructions that have, in turn, been chronologically constrained using 10 U-series ages from both in situ and reworked coral samples. Our data suggest that the emerged reef was deposited during MIS 5e (?125 ka), then was covered by intertidal and beach sediment (including redeposited coral clasts of MIS 5e age), and finally capped off by thick eolianites. This sequence would suggest that the local sea level must have remained stable throughout MIS 5e in order to allow for the progradation of both the beach and reef environments
Coral reef · Facies · Interglacial · Intertidal zone · Marine geology · Marine isotope stage · Outcrop · Pleistocene · Progradation · Quaternary · Reef · Sea level · Shore · Structural basin · Coral and Marine Ecosystems Studies · Geology and Paleoclimatology Research · Maritime and Coastal Archaeology · Geology · Oceanography · Paleontology
| Citation velocity | historical |
|---|---|
| Highly cited | No |