Geologic descriptions of drill core from greenstone belt in northeastern Itasca County, Minnesota

Himmelberg, G.R.2012-03-282012-03-281973https://hdl.handle.net/11299/122074Geologic descriptions of drill core in a greenstone (type of metamorphic rock) belt, Itasca County, Minnesotaen-USGeologic descriptions of drill core from greenstone belt in northeastern Itasca County, MinnesotaReport