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This derivative engineering-geologic map illustrates potential near-surface sources of various geologic materials that may be useful for construction near the Dalton Highway area, from Atigun Gorge to Slope Mountain. The map area is located in the west-central Philip Smith Mountains quadrangle. The map extends from the northern flank of the Endicott Mountains into the Arctic Foothills province. Field observations indicate that each geologic unit (for example, stream alluvium) has a definite composition or range of composition. Therefore, the probable presence of materials is interpreted from the distribution of geologic units on the geologic map of this quadrangle. Map unit descriptions also include discussion of...
Tags: Atigun Gorge,
Atigun River,
Aufeis,
Building Stone,
Crushed Rock, All tags...
Dalton Highway,
Decorative Stone,
Engineering,
Engineering Geologic Map,
Engineering Geology,
Flood,
Galbraith Lake,
Geologic Hazards,
Geologic Materials,
Gravel,
Icing,
Materials Site,
Naled,
Permafrost,
Philip Smith Mountains Quadrangle,
River Icing,
Sand,
Sand and Gravel,
Silt,
Slope Instability,
Slope Mountain,
Thawing Permafrost,
Toolik Lake,
Toolik River,
Trans-Alaska Pipeline,
geoscientificInformation, Fewer tags
In 1926, twenty-four companies from Indiana's Monroe and Lawrence counties joined their limestone quarrying and milling businesses to form the Indiana Limestone Company, or ILCO, that is still in operation today. Indiana Limestone refers to the building-stone facies of the Salem Limestone, later trademarked as “The Nation’s Building Stone,” and has been used extensively in building projects across the United States. Deposited approximately 340–335 million years ago in the middle Mississippian Period, it is exceptionally pure, well sorted, and occurs in thick beds that outcrop at or near the surface in Owen, Monroe, and Lawrence counties making the area especially well suited for profitable quarrying. In 2012,...
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