The aqueous alteration of ultramafic rocks through serpentinization liberates mantle carbon
and reducing power. Serpentinization occurs in numerous settings on present day Earth …

The widespread presence of ribonucleic acid (RNA) catalysts and cofactors in the Earth′ s
biosphere today suggests that RNA was the first biopolymer to support Darwinian evolution …

Construction and assembly of the Geologic Time Scale involves:(a) constructing a relative
(chronostratigraphic) standard scale for key periods in the Earth's rock record;(b) identifying …

For life to have emerged from CO2, rocks, and water on the early Earth, a sustained source
of chemically transducible energy was essential. The serpentinization process is emerging …

Fluids from the ultramafic-hosted Lost City hydrothermal field were analyzed for total
dissolved organic carbon and dissolved organic acids. Formate (36–158μmol/kg) and …

Life is the harnessing of chemical energy in such a way that the energy-harnessing device
makes a copy of itself. This paper outlines an energetically feasible path from a particular …

Serpentinization involves the hydrolysis and transformation of primary ferromagnesian
minerals such as olivine ((Mg, Fe) 2SiO4) and pyroxenes ((Mg, Fe) SiO3) to produce H2-rich …

Conditions at the surface of the young (Hadean and early Archean) Earth were suitable for
the emergence and evolution of life. After an initial hot period, surface temperatures in the …

Rock–water–carbon interactions germane to serpentinization in hydrothermal vents have
occurred for over 4 billion years, ever since there was liquid water on Earth. Serpentinization …

Understanding the mechanism of sugar formation and stabilization is important for
constraining theories on the abiotic origin of complex biomolecules. Although previous …