We review the origin and evolution of the atmospheres of Earth, Venus and Mars from the
time when their accreting bodies were released from the protoplanetary disk a few million …

Ever since the discovery of deep-sea hydrothermal systems in the late 1970s, there has
been keen interest in the potential for abiotic synthesis of organic compounds in these …

Ever since their discovery in the late 1970's, mid-ocean-ridge hydrothermal systems have
received a great deal of attention as a possible site for the origin of life on Earth (and …

The concept that aqueous CO2 can be reduced to hydrocarbons abiotically during
serpentinization of olivine has become widespread in the earth and planetary sciences. This …

Antonio Lazcano* and Stanley L. Miller† models incorporate high partial pressures of CO2
to raise the temperature of the Earth by a greenhouse effect* Departamento de Biologıa …

Intraterrestrial life has been found at depths of several thousand metres in deep sub-sea
floor sediments and in the basement crust beneath the sediments. It has also been found at …

Life is made of the intimate interaction of metabolism and genetics, both built around the
chemistry of the most common elements of the Universe (hydrogen, oxygen, nitrogen, and …

The theory of a chemoautotrophic origin of life in a volcanic iron–sulphur world postulates a
pioneer organism at sites of reducing volcanic exhalations. The pioneer organism is …

In the presence of water, olivine of ultramafic rock is oxidized during the process referred to
as 'serpentinization'. Water in contact with the olivine is reduced to molecular hydrogen (H2) …

Medical geology is an emergent field of science that for some authors deals with the
relationships between the geological environment and health problems in humans, animals …