Exploring Spatiotemporal Paleoenvironmental and Paleoceanographic Changes on the Continental Shelf Using Authigenic Greigite: A Case Study From the East China Sea

Abstract

Although continental shelves account for only approximately 7.5% of the ocean's surface, they are a globally important reservoir for terrigenous sediments (Saito et al., 1998). Therefore, sedimentary records from continental shelves are ideal for high-resolution studies on geological and environmental evolutions such as local tectonic subsidence, source-sink processes, and climate changes (e.g., Knies et al., 2003). In addition, as a transitional zone between the land and deep ocean, sedimentary architectures on the continental shelf, especially in low-gradient and broad continental margins, are controlled by a range of factors including variations in sea-level