> Dawkins talked about replicating crystals and clays, more recently there's
> been talk of replicating systems on surfaces near underwater thermal vents
> (see http://www.budget.net/~jangles/volcano.htm, e.g.).
I've read vague references to clay as a beginning of life. But my own
observation is that clays seem to be a product of life. In a section of
the earth I see vegetation above dead compacted vegetation above soil
above compacted lifeless soil above gray clayish soil above clay. Is it
acknowledged that clay has an organic origin?
-- Cliff Lundberg ~ San Francisco ~ cliff@noevalley.com