Distribution:
Distribution Comments:
Joana Chert is associated with the Joana Formation of Nevada.
Outcroppings occur in the Diamond and Pancake ranges as nodules, Ruby
Mountains as dark gray to black nodules, Buck Mountain and Bald Mountain
as nodules, northern Reveille Range, Grant and White Pine Ranges as
reddish brown lenses, southern Cherry Creek and northern Egan Ranges as
light brown to reddish brown nodules, northern and southern Schell Creek
Range as light brown to brown or dark gray to black nodules or
stringers, western Red Hills as purplish black nodules, Kern Mountains
as abundant black nodules, Spruce Mountain as dark gray and black
nodules and stringers, northern Pahroc Range, Golden Gate Range, Seaman
Range, and Dutch John Mountains, Nevada.