Cracks and Pores: A Closer Look

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Science  13 Oct 1972:
Vol. 178, Issue 4057, pp. 162-164
DOI: 10.1126/science.178.4057.162


Most pores and some cracks in several rocks, as directly viewed with a new technique, have a shape that suggests an origin early in the history of these rocks. Thus, behavior in the laboratory may be a reliable indication of behavior in the earth's crust, for electrical resistivity, permeability, or other properties that depend on microporosity.

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