The history of life on our planet is a long and winding path ... There are three main types of rock: igneous rock, metamorphic rock, and sedimentary rock. Almost all fossils are preserved in ...

In 1993 Schopf published a paper about some microfossils he had found in Early Archaean rocks, which he claimed were the ...

THE GEOLOGY OF the Olympic Peninsula offers a fascinating glimpse into the massive forces of nature that shaped this land into one of the most complicated rock piles in the world.

Igneous rocks contain few or no combustible elements. And it’s very hard to remelt them back into magma because they ...