Biogeochemistry: Past, present, and future

Welcome to my personal website! My name is Ichiko Sugiyama. I am originally from Tokyo, Japan, and I am currently a Postdoctoral Fellow at Carleton University and a Guest Investigator at the Woods Hole Oceanographic Institution (WHOI). I am a biogeochemist who investigates modern and ancient metal and nutrient cycles using experimental, field, and modeling approaches. My research examines how solution chemistry and particulates—including minerals, particulate organic carbon, and microbes—govern the cycling of metals and nutrients. I also study how diagenetic processes modify chemical and isotopic signals in sediments and rocks, linking modern biogeochemical processes to the geologic record. I apply this expertise across paleobiogeochemistry, oceanography, and industrial applications, including ore and petroleum geochemistry, environmental remediation, and the evaluation of geoengineering strategies for mitigating anthropogenic climate change.