Type Formation Overlies Pilot Formation Named for Joana Mine Primary Limestone | Unit of White Pine Group Country United States Named by Spencer, 1917 Underlies Chainman Formation | |
Regions Nevada, White Pine County, Nevada, Nye County, Nevada | ||
The Joanna Limestone is a limestone geologic formation in White Pine County and Nye County Nevada.
Description
The Joana Limestone was named for exposures at the Joana Mine on the south side of Robinson Canyon, 2 miles north of Ely, Nevada.
It was formed during the Early Mississippian series of the Carboniferous Period
It preserves fossils dating back to the Carboniferous period.
References
Joanna Limestone Wikipedia(Text) CC BY-SA