All sites are from a region of volcanic bedrock, but basin size, relief, and drainage vary widely.
The susceptibility and pollen records reflect both the nature of their local basins and regional climatic changes. Because susceptibility measurements are readily made and nondestructive, they offer an easy means for evaluation of cores prior to sampling for more time-consuming analyses. More detailed studies of other magnetic properties of the Buck Lake and Caledonia Marsh cores are reported elsewhere in this session.