Micro-scale stable isotopic analysis of calcareous microfossils to detect new environmental proxies

为了建立可靠的环境代用指标，笔者利用微尺度稳定同位素分析系统研究了底栖有孔虫碳氧同位素的个体差异。我们将能够将这一发现应用于精确重建古代水化学。此外，为了开发新的环境代用指标，我开始了几项关于生物碳酸盐的合作研究。为了这些研究，我开发了一种新的高精度同位素分析系统，用于碳酸盐，DIC和水样品。

To develop reliable environmental proxies, I clarified the interindividual differences in stable carbon and oxygen isotopes of benthic foraminifera by using microscale stable isotopic analytical system. We will be able to apply this finding to precise reconstruction of ancient water chemistry. In addition, to develop new environmental proxies, I started several collaborated studies of biogenic carbonate. For those studies, I have developed a new high precision isotopic analytical system for carbonate, DIC, and water samples.