Resolving Uncertainties in Foraminifera-Based Relative Sea-Level Reconstruction: a Case Study from Southern New Zealand
| العنوان: | Resolving Uncertainties in Foraminifera-Based Relative Sea-Level Reconstruction: a Case Study from Southern New Zealand |
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| المؤلفون: | Garrett, E., Brain, M.J., Hayward, B.W., Newnham, R., Morey, C.J., Gehrels, W.R. |
| المصدر: | Journal of Foraminiferal Research, 2023, Vol.53(1), pp.78-89 [Peer Reviewed Journal] |
| بيانات النشر: | GeoScienceWorld, 2023. |
| سنة النشر: | 2023 |
| مصطلحات موضوعية: | Paleontology, Microbiology |
| الوصف: | Since the pioneering work of David Scott and others in the 1970s and 1980s, foraminifera have been used to develop precise sea-level reconstructions from salt marshes around the world. In New Zealand, reconstructions feature rapid rates of sea-level rise during the early to mid-20th century. Here, we test whether infaunality, taphonomy, and sediment compaction influence these reconstructions. We find that surface (0–1 cm) and subsurface (3–4 cm) foraminiferal assemblages show a high degree of similarity. A landward shift in assemblage zones is consistent with recent sea-level rise and transgression. Changes associated with infaunality and taphonomy do not affect transfer function-based sea-level reconstructions. Applying a geotechnical modelling approach to the core from which sea-level changes were reconstructed, we demonstrate compaction is also negligible, resulting in maximum post-depositional lowering of 2.5 mm. We conclude that salt-marsh foraminifera are indeed highly accurate and precise indicators of past sea levels. |
| وصف الملف: | application/pdf |
| تدمد: | 1943-264X 0096-1191 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::946478838b1573072401bb8a8fa9dcf5 https://doi.org/10.2113/gsjfr.53.1.78 |
| حقوق: | OPEN |
| رقم الأكسشن: | edsair.doi.dedup.....946478838b1573072401bb8a8fa9dcf5 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 1943264X 00961191 |
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