High resolution palaeoenvironmental reconstruction from Lake Suigetsu, Japan (IAP2-18-54)

现有的绥格斯湖古环境资料主要基于孢粉调查。然而，植物物种的反应(以及它们产生的花粉记录)往往落后于引起气候变化的(从十年到百年的尺度)。因此，拟议的博士学位将侧重于两个相辅相成的古环境替代指标，它们可能对气候扰动表现出更高的敏感性(即更快的反应)--生物标记化合物特定同位素分析(包括对提取的硅藻的DD分析和稳定同位素分析(D18O))。

The existing palaeoenvironmental data from Lake Suigetsu are primarily based upon palynological investigation. However, the response of plant species (and hence the pollen records that they produce) often lags behind the causative climatic changes (at a ~decadal to centennial scale). This proposed PhD studentship will therefore focus on two complementary palaeoenvironmental proxies that might be expected to demonstrate greater sensitivity (i.e. more rapid response) to climatic perturbation - biomarker compound specific isotope analysis (including dD analysis and stable isotopic analysis on extracted diatoms (d18O).