This is a hypothesis known as the “Russian school hypothesis” as many of the Russian authors favour this model.

Based on theory that the Earths core and mantle contains substantial amounts of H bound to Iron and Nickel, and the core is continuously degassing resulting in a flux of H2.

It is described by Larin (1993) in his publication on the Hydridic Earth: The new geology of our primordially hydrogen-rich planet.

Certain locations above deep structural discontinuities would provide a leak path to earths surface, resulting in long lived geomorphological expressions on the surface – “Fairy Circles”

This theory is not universally supported by different academic scholars.