Paleoshoreline reconstruction: A proposed method to approach submerged prehistoric landscapes of Espiritu Santo Island, Baja California Sur, Mexico
Abstract When the first Americans inhabited the area now known as Isla Espiritu Santo, around 12.5 and 6 ka, the sea level continuously rose. This resulted in the loss of the coastal territory and the retreat of the human population further inland. Part of the archaeological evidence of this period...
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Online Access: | http://dx.doi.org/10.1002/gea.21983 https://onlinelibrary.wiley.com/doi/pdf/10.1002/gea.21983 |
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crwiley:10.1002/gea.21983 2024-06-02T08:10:00+00:00 Paleoshoreline reconstruction: A proposed method to approach submerged prehistoric landscapes of Espiritu Santo Island, Baja California Sur, Mexico Robles‐Montes, Mayra C. Martínez‐Flores, Guillermo Faught, Michael K. Nava‐Sánchez, Enrique H. 2023 http://dx.doi.org/10.1002/gea.21983 https://onlinelibrary.wiley.com/doi/pdf/10.1002/gea.21983 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Geoarchaeology volume 39, issue 2, page 106-121 ISSN 0883-6353 1520-6548 journal-article 2023 crwiley https://doi.org/10.1002/gea.21983 2024-05-03T11:33:05Z Abstract When the first Americans inhabited the area now known as Isla Espiritu Santo, around 12.5 and 6 ka, the sea level continuously rose. This resulted in the loss of the coastal territory and the retreat of the human population further inland. Part of the archaeological evidence of this period currently lies over the seafloor and under the seabed. Therefore, reconstructing paleoshorelines is a necessary first step toward submerged precontact archaeology and a broad understanding of the spatial context in which those human populations interacted and how the landscapes changed. Isla Espiritu Santo is of prehistoric importance as it contains numerous Paleocoastal tradition sites as early as ~12,400 Cal B.P. This research aims to reconstruct the changing shoreline positions as sea levels rose around Isla Espiritu Santo between 12.5 and 6.5 ka. We apply numerical modeling to map digital elevation models at 1 ka intervals by estimating the changes in the morphology of the seafloor according to the deposition rates and global sea‐level curve. The results show the evolution of coastal morphology and paleoshoreline's position. Three primary geoforms are proposed: (1) coastal plains, (2) tombolo, and (3) a coastal lagoon–island barrier system. This also offers insights into the physical aspect of submerged prehistoric landscapes and the possible resource exploitation options of early societies. In this research, the reconstruction of submerged landscapes seeks to contribute to the long‐term goal of locating submerged precontact sites. Article in Journal/Newspaper Lagoon Island Wiley Online Library Baja Lagoon Island ENVELOPE(-68.239,-68.239,-67.594,-67.594) Santo Island ENVELOPE(-106.451,-106.451,55.600,55.600) Geoarchaeology 39 2 106 121 |
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Open Polar |
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Wiley Online Library |
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crwiley |
language |
English |
description |
Abstract When the first Americans inhabited the area now known as Isla Espiritu Santo, around 12.5 and 6 ka, the sea level continuously rose. This resulted in the loss of the coastal territory and the retreat of the human population further inland. Part of the archaeological evidence of this period currently lies over the seafloor and under the seabed. Therefore, reconstructing paleoshorelines is a necessary first step toward submerged precontact archaeology and a broad understanding of the spatial context in which those human populations interacted and how the landscapes changed. Isla Espiritu Santo is of prehistoric importance as it contains numerous Paleocoastal tradition sites as early as ~12,400 Cal B.P. This research aims to reconstruct the changing shoreline positions as sea levels rose around Isla Espiritu Santo between 12.5 and 6.5 ka. We apply numerical modeling to map digital elevation models at 1 ka intervals by estimating the changes in the morphology of the seafloor according to the deposition rates and global sea‐level curve. The results show the evolution of coastal morphology and paleoshoreline's position. Three primary geoforms are proposed: (1) coastal plains, (2) tombolo, and (3) a coastal lagoon–island barrier system. This also offers insights into the physical aspect of submerged prehistoric landscapes and the possible resource exploitation options of early societies. In this research, the reconstruction of submerged landscapes seeks to contribute to the long‐term goal of locating submerged precontact sites. |
format |
Article in Journal/Newspaper |
author |
Robles‐Montes, Mayra C. Martínez‐Flores, Guillermo Faught, Michael K. Nava‐Sánchez, Enrique H. |
spellingShingle |
Robles‐Montes, Mayra C. Martínez‐Flores, Guillermo Faught, Michael K. Nava‐Sánchez, Enrique H. Paleoshoreline reconstruction: A proposed method to approach submerged prehistoric landscapes of Espiritu Santo Island, Baja California Sur, Mexico |
author_facet |
Robles‐Montes, Mayra C. Martínez‐Flores, Guillermo Faught, Michael K. Nava‐Sánchez, Enrique H. |
author_sort |
Robles‐Montes, Mayra C. |
title |
Paleoshoreline reconstruction: A proposed method to approach submerged prehistoric landscapes of Espiritu Santo Island, Baja California Sur, Mexico |
title_short |
Paleoshoreline reconstruction: A proposed method to approach submerged prehistoric landscapes of Espiritu Santo Island, Baja California Sur, Mexico |
title_full |
Paleoshoreline reconstruction: A proposed method to approach submerged prehistoric landscapes of Espiritu Santo Island, Baja California Sur, Mexico |
title_fullStr |
Paleoshoreline reconstruction: A proposed method to approach submerged prehistoric landscapes of Espiritu Santo Island, Baja California Sur, Mexico |
title_full_unstemmed |
Paleoshoreline reconstruction: A proposed method to approach submerged prehistoric landscapes of Espiritu Santo Island, Baja California Sur, Mexico |
title_sort |
paleoshoreline reconstruction: a proposed method to approach submerged prehistoric landscapes of espiritu santo island, baja california sur, mexico |
publisher |
Wiley |
publishDate |
2023 |
url |
http://dx.doi.org/10.1002/gea.21983 https://onlinelibrary.wiley.com/doi/pdf/10.1002/gea.21983 |
long_lat |
ENVELOPE(-68.239,-68.239,-67.594,-67.594) ENVELOPE(-106.451,-106.451,55.600,55.600) |
geographic |
Baja Lagoon Island Santo Island |
geographic_facet |
Baja Lagoon Island Santo Island |
genre |
Lagoon Island |
genre_facet |
Lagoon Island |
op_source |
Geoarchaeology volume 39, issue 2, page 106-121 ISSN 0883-6353 1520-6548 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1002/gea.21983 |
container_title |
Geoarchaeology |
container_volume |
39 |
container_issue |
2 |
container_start_page |
106 |
op_container_end_page |
121 |
_version_ |
1800755788820512768 |