Methane on Mars: potential origin and seepage - Giuseppe Etiope (SETI Ta...
Δημοσιεύτηκε στις 7 Οκτ 2016
It
is widely accepted that the occurrence of methane (CH4) in the Martian
atmosphere may imply the presence of active geological sources, i.e. gas
emission structures in the Martian soil and subsoil. In other words,
gas seepage, a process well known on Earth, should exist on Mars. The
concept of gas seepage,although obvious for many geologists, especially
those working in gas geochemistry and petroleum geology, is ignored or
poorly known by Mars methane science community. The seminar will offer a
discussion on the fundamentals of seepage, its potential occurrence on
Mars (via microseepage, mud volcanoes, faults, degassing from
serpentinized rocks) and possible detection techniques. Basic concepts
on potential methane origin on Mars (biotic vs abiotic) will be
discussed and clarified, considering some confusion and
misinterpretations in present literature.
Giuseppe Etiopeis a
senior researcher, geologist, at the Istituto Nazionale di Geofisica e
Vulcanologia in Rome, Italy. He works on the origin, occurrence, and
migration of gas in the geosphere, with particular reference to biotic
hydrocarbons in sedimentary basins and abiotic gas in serpentinized
ultramafic rocks. He studies the origin of methane, gas seepage
phenomena and their implications for the environment, energy resource
exploration and planetary geology (methane on Mars). He published 164
articles and a Springer’s book on “Natural Gas Seepage”. H index: 27
(Web of Science); 32 (Google Scholar).
is widely accepted that the occurrence of methane (CH4) in the Martian
atmosphere may imply the presence of active geological sources, i.e. gas
emission structures in the Martian soil and subsoil. In other words,
gas seepage, a process well known on Earth, should exist on Mars. The
concept of gas seepage,although obvious for many geologists, especially
those working in gas geochemistry and petroleum geology, is ignored or
poorly known by Mars methane science community. The seminar will offer a
discussion on the fundamentals of seepage, its potential occurrence on
Mars (via microseepage, mud volcanoes, faults, degassing from
serpentinized rocks) and possible detection techniques. Basic concepts
on potential methane origin on Mars (biotic vs abiotic) will be
discussed and clarified, considering some confusion and
misinterpretations in present literature.
Giuseppe Etiopeis a
senior researcher, geologist, at the Istituto Nazionale di Geofisica e
Vulcanologia in Rome, Italy. He works on the origin, occurrence, and
migration of gas in the geosphere, with particular reference to biotic
hydrocarbons in sedimentary basins and abiotic gas in serpentinized
ultramafic rocks. He studies the origin of methane, gas seepage
phenomena and their implications for the environment, energy resource
exploration and planetary geology (methane on Mars). He published 164
articles and a Springer’s book on “Natural Gas Seepage”. H index: 27
(Web of Science); 32 (Google Scholar).
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