Pyrite Concentration and Paleoenvironmental Change of the Hiroshima Delta(Japan)

Abstract

AttachedPyrite (FeS2) content in brackish and salt marsh sediments is relatively higher than the amount in freshwater marsh sediments. Different values of pyrite sulfur (FeS2-S) content in sediments from the Hiroshima Delta indicate that poorly drained salt marsh had developed between 27.0m and 28.0m below mean sea – level and palaeo -sea- level was constant for several hundreds of years in the same depth during the early Holocene Epoch.