Vegetational differences between the coastal areas of the Japan Sea and the Pacific Ocean since the last interglacial (isotope stage 5e) in western Japan

京都府立大学 農学研究科Abstract - Lake sediments yield records of information about climatic and tectonic conditions in the past with local to global scales. Dating of sediments is the first step to extract quantitative information from the record. The magneto- and bio- stratigraphy is always a powerful tool. An orbital tuning of successive data on physical and chemical properties of sediments also could provide timescale. Radiometric dating techniques can provide stand-alone numerical values, though each methodology could be applied to restricted samples and time-spans. This paper reviews several radiometric dating methodologies which could be applied to lake sediments, addressing advantages and requirements of each methodology