Mineral Resources On-Line Spatial Data
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Geologic units containing exhalite
A chemical sedimentary rock, usually containing oxide, carbonate, or sulfide as anions, and iron, magnesium, base metals, and gold as cations, formed by the issuance of volcanically derived fluids onto the sea floor or into the sea.
- Quartzite, siltite, argillite, and mica schist; Middle Proterozoic Lemhi Group; southern Belt province (Middle Proterozoic)
- Intermediate Precambrian sediments, feldspathic quartzite and siltstone of southern Idaho.