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An examination of the Browns Bench ignimbrite from the perspective of an archaeologist (2017)
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Archaeologists have chemically distinguished the vitreous stone of the Rogerson Formation of southern Idaho, northeast Nevada, and northwest Utah as the Browns Bench Toolstone Source. Recent geologic research into the Rogerson Formation reveals that the deposits are much more variable than archaeologists recognize. Multiple potential toolstone beds with unique properties are present within the formation. This material is referred to as ignimbrite by geologists though some of it has the visual...