(1988) Epithermal gold-silver mineralization, wall-rock alteration, and geochemical evolution of hydrothermal fluids in the ash-flow tuff at Round Mountain, Nevada..
These rocks are overlain by Oligocene to Miocene-age rhyolitic ash-flow tuffs.
The site is in the Leslie Gulch Ash-Flow Tuff
Member of the Sucker Creek (also Succor Creek) Formation (Kittleman et al.
The Shin Pond volcanic rocks extend into the adjacent Island Falls quadrangle where they are as much as 300 m thick and consist of slaty felsite, coarse-grained calcareous tuffaceous sandstone and ash-flow tuff
(Ekren and Frischknecht 1967).
Anderson, R.E., 1970, Ash-flow tuffs
of Precambrian age in Southeast Missouri, Missouri Division of Geology and Land Survey Report of Investigations 46.