Environmental history recorded over the last 70 years in Biển Hồ maar sediment, Central Highlands of Vietnam
Nguyen-Van, H.; Schimmelmann, J.P.; Nguyen-Thùy, D.; Ojala, A.E.K.; Unkel, I.; Nguyen-Ðình, T.; Fukumoto, Y.; Doiron, K.E.; Sauer, P.E.; Drobniak, A.; Ánh Nguyen, N.T.; Ðo-Trong, Q.; Nguyen-Thi, H.; Nguyen-Ánh, D.; Nguyen-Van, T.; Schimmelmann, A. (2022). Environmental history recorded over the last 70 years in Biển Hồ maar sediment, Central Highlands of Vietnam. Quaternary International 621: 84-100. https://dx.doi.org/10.1016/j.quaint.2020.05.013
In: Quaternary International. Elsevier: Oxford. ISSN 1040-6182; e-ISSN 1873-4553, meer
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| Author keywords |
Catchment; Central highlands; Historic records; Maar; Paleoenvironment; Sediment coring |
| Auteurs | | Top |
- Nguyen-Van, H.
- Schimmelmann, J.P.
- Nguyen-Thùy, D.
- Ojala, A.E.K.
- Unkel, I.
- Nguyen-Ðình, T.
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- Fukumoto, Y.
- Doiron, K.E.
- Sauer, P.E.
- Drobniak, A.
- Ánh Nguyen, N.T.
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- Ðo-Trong, Q.
- Nguyen-Thi, H.
- Nguyen-Ánh, D.
- Nguyen-Van, T.
- Schimmelmann, A.
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| Abstract |
Global warming enhances atmospheric moisture loading and will likely affect the East-Asian monsoon system across Vietnam. The absence of a long written climate history from Vietnam creates a reliance on geological archives of past monsoon history and regional paleoenvironmental changes to provide a framework for evaluating current climatic trends. Biển Hồ lake (14°03′ N, 108°00′ E) is a volcanic crater (i.e. maar) in Vietnam's Central Highlands that has been accumulating sediment since the Pleistocene. Field campaigns between 2016 and 2018 recovered an abundance of gravity and piston sediment cores extending to a depth of ~15 m, covering approximately the last 30 ka BP. The paleoenvironmental interpretation of Pleistocene and Holocene sediment requires knowledge of modern lacustrine and sedimentary conditions, as well as the origin and transport pathways of the catchment material. Here, we focus on a high-resolution sedimentological and geochemical reconstruction of the recent environmental history - from 1950 AD to the present - based on sediment cores from Biển Hồ maar, in direct comparison with local and regional weather and historic records. |
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