Density and magnetic susceptibility measurements on Precambrian rocks in the central Upper Peninsula, Michigan, 2021-2022

The U.S. Geological Survey (USGS) collected rock physical property measurements to help understand causative sources of gravity and magnetic survey anomalies in the...美国地质调查局（U.S. Geological Survey, USGS）开展了岩石物理性质测量工作，以助力解析重力与磁法勘探异常的成因来源……