Last interglacial sea-level proxies in the Korean Peninsula
<p>Like most of the world's coastlines, the Korean Peninsula experienced higher-than-present sea levels during the last interglacial (LIG), otherwise known as Marine Isotope Stage (MIS) 5e. However, the expression of that highstand in the geological record differs across the eastern and w...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Copernicus Publications
2022-01-01
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| Series: | Earth System Science Data |
| Online Access: | https://essd.copernicus.org/articles/14/117/2022/essd-14-117-2022.pdf |
| _version_ | 1818973983817596928 |
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| author | W. H. Ryang A. R. Simms H. H. Yoon S. S. Chun G. S. Kong |
| author_facet | W. H. Ryang A. R. Simms H. H. Yoon S. S. Chun G. S. Kong |
| author_sort | W. H. Ryang |
| collection | DOAJ |
| description | <p>Like most of the world's coastlines, the Korean Peninsula
experienced higher-than-present sea levels during the last interglacial
(LIG), otherwise known as Marine Isotope Stage (MIS) 5e. However, the
expression of that highstand in the geological record differs across the
eastern and western Korean Peninsula. The tectonically active east coast of
the Korean Peninsula is characterized by broad uplifted marine terraces,
while the stable west coast is characterized by tidal flats and rias. In
this study, we used a standardized database template to review and extract
the existing constraints on LIG sea levels along both the east and west
coasts of the Korean Peninsula. A total of 62 LIG constraining data points
were compiled including 34 sea-level indicators, 22 marine limiting records,
and 6 terrestrial limiting records. The ages from these data points are
based on 61 optically stimulated luminescence (OSL) measurements and 1
paleomagnetic-based age. Along the uplifted east coast, LIG sea-level
indicators based on marine terraces are at elevations ranging from <span class="inline-formula">+</span>9 to
<span class="inline-formula">+</span>32 m. The uplifted marine terraces are cut or otherwise deformed by
faults developed under a compressional regime due to back-arc closing of the
East Sea since the early Pliocene. As a result, tectonic uplift likely has
affected the elevations of the east coast LIG shorelines. In contrast, LIG
sea-level records on the west coast of the Korean Peninsula are found at
heights of between <span class="inline-formula">+</span>3 and <span class="inline-formula">+</span>6 m and include marine and terrestrial
elevation limiting records as well as true sea-level indicators. The LIG
sea-level constraints along the west coast of the Korean Peninsula are
likely unaffected by vertical movement or experienced minor subsidence
during the Quaternary. The database is available open access at
<a href="https://doi.org/10.5281/zenodo.4974826">https://doi.org/10.5281/zenodo.4974826</a> (Ryang and Simms, 2021).</p> |
| first_indexed | 2024-12-20T15:32:50Z |
| format | Article |
| id | doaj.art-efc6829632a049c29f158f3f142dfe34 |
| institution | Directory Open Access Journal |
| issn | 1866-3508 1866-3516 |
| language | English |
| last_indexed | 2024-12-20T15:32:50Z |
| publishDate | 2022-01-01 |
| publisher | Copernicus Publications |
| record_format | Article |
| series | Earth System Science Data |
| spelling | doaj.art-efc6829632a049c29f158f3f142dfe342022-12-21T19:35:35ZengCopernicus PublicationsEarth System Science Data1866-35081866-35162022-01-011411714210.5194/essd-14-117-2022Last interglacial sea-level proxies in the Korean PeninsulaW. H. Ryang0A. R. Simms1H. H. Yoon2S. S. Chun3G. S. Kong4Division of Science Education and Institute of Science Education, Jeonbuk National University, Jeonju, Jeonbuk 54896, Republic of KoreaDepartment of Earth Science, University of California, Santa Barbara, Santa Barbara, California 93106, USAGeological Research Division, Korea Institute of Geoscience and Mineral Resources (KIGAM), Daejeon 34132, Republic of KoreaFaculty of Earth System and Environmental Sciences, Chonnam National University, Gwangju 61186, Republic of KoreaPetroleum and Marine Research Division, Korea Institute of Geoscience and Mineral Resources (KIGAM), Daejeon 34132, Republic of Korea<p>Like most of the world's coastlines, the Korean Peninsula experienced higher-than-present sea levels during the last interglacial (LIG), otherwise known as Marine Isotope Stage (MIS) 5e. However, the expression of that highstand in the geological record differs across the eastern and western Korean Peninsula. The tectonically active east coast of the Korean Peninsula is characterized by broad uplifted marine terraces, while the stable west coast is characterized by tidal flats and rias. In this study, we used a standardized database template to review and extract the existing constraints on LIG sea levels along both the east and west coasts of the Korean Peninsula. A total of 62 LIG constraining data points were compiled including 34 sea-level indicators, 22 marine limiting records, and 6 terrestrial limiting records. The ages from these data points are based on 61 optically stimulated luminescence (OSL) measurements and 1 paleomagnetic-based age. Along the uplifted east coast, LIG sea-level indicators based on marine terraces are at elevations ranging from <span class="inline-formula">+</span>9 to <span class="inline-formula">+</span>32 m. The uplifted marine terraces are cut or otherwise deformed by faults developed under a compressional regime due to back-arc closing of the East Sea since the early Pliocene. As a result, tectonic uplift likely has affected the elevations of the east coast LIG shorelines. In contrast, LIG sea-level records on the west coast of the Korean Peninsula are found at heights of between <span class="inline-formula">+</span>3 and <span class="inline-formula">+</span>6 m and include marine and terrestrial elevation limiting records as well as true sea-level indicators. The LIG sea-level constraints along the west coast of the Korean Peninsula are likely unaffected by vertical movement or experienced minor subsidence during the Quaternary. The database is available open access at <a href="https://doi.org/10.5281/zenodo.4974826">https://doi.org/10.5281/zenodo.4974826</a> (Ryang and Simms, 2021).</p>https://essd.copernicus.org/articles/14/117/2022/essd-14-117-2022.pdf |
| spellingShingle | W. H. Ryang A. R. Simms H. H. Yoon S. S. Chun G. S. Kong Last interglacial sea-level proxies in the Korean Peninsula Earth System Science Data |
| title | Last interglacial sea-level proxies in the Korean Peninsula |
| title_full | Last interglacial sea-level proxies in the Korean Peninsula |
| title_fullStr | Last interglacial sea-level proxies in the Korean Peninsula |
| title_full_unstemmed | Last interglacial sea-level proxies in the Korean Peninsula |
| title_short | Last interglacial sea-level proxies in the Korean Peninsula |
| title_sort | last interglacial sea level proxies in the korean peninsula |
| url | https://essd.copernicus.org/articles/14/117/2022/essd-14-117-2022.pdf |
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