Sentence examples for by geological processes from inspiring English sources

However, there is also the chance that the methane is produced by geological processes.

Biogas differs from natural gas in that it is a renewable energy source produced biologically through anaerobic digestion rather than a fossil fuel produced by geological processes.

Their chemical compositions are thought, in many cases, to have remained unchanged by geological processes of the sort that shaped the Earth and the other inner planets.

Others can be found in younger deposits, but those have been put there by geological processes and are actually much older," said Tyler Lyson, a palaeontologist at Yale University.

But CH4 can also be produced by geological processes, including volcanism.

Therefore, the rapid decrease observed in our analysis must be mainly caused by geological processes.

Occasional methane burps might be created by residual geological processes, or even by bacterial respiration.

The methane could be produced by purely geological processes, such as volcanic activity.

This suggests clays formed early in Martian history, when water was available on the surface, and were then buried by other geological processes.

As a result of being relatively young animals by geological standards, there tend to be more specimens of them, since they have had less time to be destroyed by various geological processes.

A hydraulic fracture may be initiated by natural, geological processes in the earth whereby the fluid pressure increases and/or the smallest principal stress decreases.