Introduction -- Physical properties of magma -- Intrusion of magma -- Forms of igneous bodies -- Cooling of igneous bodies and other diffusion processes -- Classification of igneous rocks -- ...
Morning Overview on MSN
Scientists find mysterious tunnel network carved into desert rock
Geologists studying ancient desert rocks have stumbled on a microscopic tunnel system that looks uncannily deliberate, a lacework of hair-thin tubes that slice through solid stone in repeating ...
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