Minerals of the Stettin Pluton MARATHON COUNTY, WISCONSIN Even though a large portion of it is covered...covered by swamps, forests, and pasturelands, the Stettin Pluton appears to have potential for new mineral finds...Street Wausau, Wisconsin 54401 T H E S T E T T I N P L U T O N I N M A R A T H O N County, Wisconsin, is...numbers 3 and 4 could be reserved. The age of the pluton has been determined at 1520 m.y. (Van Schmus, 1973)...contact. Several unusual minerals occur with this pluton, some as yet unidentified, others undoubtedly yet |