Setting the geological scene for the origin of life and continuing open questions about its emergence

The origin of life is one the most fundamental questions humanity. It has been and still being addressed by a wide range researchers from different fields, with approaches ideas as to how it came about. What incomplete constrained information about environment conditions reigning on Hadean Earth, particularly inorganic ingredients available, stability longevity various environments suggested locations for emergence life, well kinetics rates prebiotic steps leading life. This contribution reviews our current understanding geological scene in which originated zooming specifically details regarding timescales available reactions, aim providing experimenters more specific constraints. Having set scene, we evoke open life: did start organically or mineralogical form? If organically, what was organic constituents life? first, metabolism replication? time-scale We conclude that way forward chemistry an approach merging geology chemistry, i.e., far-from-equilibrium, wet-dry cycling (either subaerial exposure dehydration through chelation mineral surfaces) reactions occurring repeatedly iteratively at surfaces under hydrothermal-like conditions.