Radiocarbon dates of elevated shorelines,Indonesia and Malaysia. Part 1 |
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| Authors: | HD Tjia Shoji Fujii Kunihiko Kigoshi Arata Sugimura Thomas Zakaria |
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| Institution: | 1 Department of Geology, Malaysian National University, Malaysia;2 Department of Geology, Toyama University, Japan;3 Gakushuin University, Japan;4 Geological Institute, University of Tokyo, Japan;5 Lembaga Penjelidikan Masalah Air, Indonesia |
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| Abstract: | Four new radiocarbon dates of elevated strandlines in tectonically active areas of eastern Indonesia and East Malaysia indicate average rates of uplift that range between 4.5 and 9 mm annually during the past 24,000 yr. These values are at least three times higher than former estimates from eastern Indonesia. Another radiocarbon date from the south arm of Sulawesi—also tectonically mobile—indicates a rate of uplift of 1.4–2.5 mm per year which corresponds with earlier determinations. This particular case, however, suggests that the sample was probably located close to a north-south axis about which southern Sulawesi was tilted during the Quaternary. |
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