Total magnetic intensity data measures variations in the intensity of the Earth's magnetic filed caused by the contrasting content of rock-forming minerals in the Earth's crust. The data are collecte
This dataset includes locations and associated information about mines and mining activity in the contiguous United States. The database was developed by combining...
The QUEENSLAND PETROLEUM ATP MINERALS 1946 A map was published in 1946 to administer permit and permit related spatial information. The map was maintained internally as a provisional office chart.