Hydrothermal alteration in the Basin and Range province of the US: Maps and data showing the geographic distribution of surficial minerals likely produced by hydrothermal alteration, which may indicate areas permissive of gold and copper mineral deposits.
|US county names|
|USGS map quadrangles|
|Map quadrangle names|
Need more? You can View, Download, and Understand this data source at https://mrdata.usgs.gov/geochem/.
|Show available data layers|
|Layer not shown on map|
|50||Sliders affect layer transparency.|
|Show named geographic areas|
|Ohio||Click linked area names (subdivisions or overlapping areas)|
|Shows the area on the map|
|Click the map to show data near to the point you clicked.|
|A report opens in a new window.|
|Click the section headings to expand or collapse reports.|
|To select data from a rectangular area, hold the Ctrl key (use Cmd key on Macs) and drag the pointer.|
|Don't search a large area this way, it takes too long. Zoom in instead.|