Winogradsky was the first to develop the concept of chemolithotrophy and to thereby reveal the essential role played by micro-organisms in geochemical processes.

Microbes often interact with geochemical processes, leaving features in the rock record indicative of biosignatures.

From this point onwards life itself produced significantly more of the resources it needed than did geochemical processes.

Crude oil originates from ancient fossilized organic materials, such as zooplankton and algae, which geochemical processes convert into oil.

CYCLES characterize geochemical processes operating at the surface of the Earth.

There's a lot of geochemical processes that happen when two different kinds of water interact.

This may indicate the presence of life on Mars, but may also be produced by a geochemical process, volcanic or hydrothermal activity.

Nature of the methane source requires measurements of a suite of trace gases in order to characterize potential biochemical and geochemical processes at work.

Methane could also be the product of a geochemical process or the result of volcanic or hydrothermal activity.

A geochemical process called anhydrite swelling has been confirmed as the cause of these uplifts.