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The Epic Interactive Encyclopedia 1996
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Epic Interactive Encyclopedia, The (1996)(Epic Marketing)[non-bootable].iso
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sial
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1992-09-02
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9 lines
A sial in geochemistry and geophysics, is the
substance of the Earth's continental crust,
as distinct from the sima of the ocean crust.
The name, now used rarely, is derived from
silica and alumina, its two main chemical
constituents.
Subject by: Shaun Jay