Deep-Borehole Disposal - 1 Deep-Borehole Disposal "Not...

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Unformatted text preview: 1 Deep-Borehole Disposal "Not a vestige could be seen, nor any indication of where we were going ." —Henry Lawson in “Journey to the Center of the Earth” by Jules Verne. Deep boreholes Idea: Instead of shallow (300 t0 800 meter deep) geologic repositories (such as Yucca Mountain), place wastes into deep, vertical wells. Large-diameter boreholes drilled to depths of 4 to 5 km (2.5 to 3 miles) into the granitic basement. Not a new idea: first proposed in the 1950s. 2 “Basement rocks” Basement rock: the oldest rocks in a given area; a complex of metamorphic and igneous rocks that underlies the sedimentary deposits. Usually Precambrian in age (older than For deep-bore disposal, we are interested in basement rocks made of granite. 3 Granite Granite is an igneous rock which formed by slowly cooling magma that was trapped beneath the earth's surface. Composed of quartz (silica) and various aluminosilicates....
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This note was uploaded on 12/04/2011 for the course NPRE 442 taught by Professor Stubbins during the Fall '08 term at University of Illinois, Urbana Champaign.

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Deep-Borehole Disposal - 1 Deep-Borehole Disposal "Not...

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