Igneous Rock Weathering There is a well known expression that captures much of the story of rock weathering and illustrates the important role it has played in Earth history: "Igneous Rocks + Acid Volatiles = Sedimentary Rocks + Salty Oceans" What we mean by this will become clearer if we look at the details of the weathering processes.
(we; look; at the details of the weathering processes) (the important role; has played; L:in Earth history) (we; mean; )
we the important role we
look has played mean
at the details of the weathering processes
L:in Earth history