Combined dataset for three sediment cores from the St. Lawrence River near Cornwall, ON

An excel file containing data for three sediment cores from the St. Lawrence River (two from nearshore Cornwall and one from downstream Grenadier Basin in Lake St. Francis). Data was generated and analyzed from 2020-2023. This file includes data on stable element concentrations, mercury, grain size, loss-on-ignition, chironomid taxa counts, and chironomid head capsule abundances for studied intervals from these sediment cores.