Researchers at the University of Tsukuba have discovered that rainwater runoff in the highly rugged sedimentary rock mountains of Japan's Southern Alps is governed by two processes: "deep infiltration" and "shallow drainage via landslides. " These processes are dictated by the inclination of geol...

Source: [Phys.org](https://phys.org/news/2026-06-bedding-rainfall-runoff-mountain-catchments.html)

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