title: Precambrian lunar volcanic protolife.
abstract: Five representative terrestrial analogs of lunar craters are detailed relevant to Precambrian fumarolic activity. Fumarolic fluids contain the ingredients for protolife. Energy sources to derive formaldehyde, amino acids and related compounds could be by flow charging, charge separation and volcanic shock. With no photodecomposition in shadow, most fumarolic fluids at 40 K would persist over geologically long time periods. Relatively abundant tungsten would permit creation of critical enzymes, Fischer-Tropsch reactions could form polycyclic aromatic hydrocarbons and soluble volcanic polyphosphates would enable assembly of nucleic acids. Fumarolic stimuli factors are described. Orbital and lander sensors specific to protolife exploration including combined Raman/laser-induced breakdown spectrocsopy are evaluated.
authors: Department of Geology, California State University, Long Beach, California, 90840, USA.
authors: Jack
authors: J
authors: Green
mesh_terms: D000596:Amino Acids / Q000737:chemistry / Q000378:metabolism; D005557:Formaldehyde / Q000737:chemistry; D006358:Hot Temperature; D009696:Nucleic Acids / Q000737:chemistry / Q000378:metabolism; D011084:Polycyclic Aromatic Hydrocarbons / Q000737:chemistry; D011122:Polyphosphates / Q000737:chemistry; D012313:RNA / Q000378:metabolism; D018707:Volcanic Eruptions
chemical_list: D000596:Amino Acids; D009696:Nucleic Acids; D011084:Polycyclic Aromatic Hydrocarbons; D011122:Polyphosphates; D005557:Formaldehyde; D012313:RNA