Outgassed water on Mars - Constraints from melt inclusions in SNC meteorites

Details Outgassed water on Mars - Constraints from melt inclusions in SNC meteorites Outgassed water on Mars - Constraints from melt inclusions in SNC meteorites

Mar 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993sci...259.1890m&link_type=abstract

Science (ISSN 0036-8075), vol. 259, no. 5103, p. 1890-1892.

Computer Science

43

Magma, Mars (Planet), Meteoritic Composition, Outgassing, Water, Amphiboles, Igneous Rocks, Mars Environment, Melts (Crystal Growth), Mars, Water, Outgassing, Inclusions, Meteorites, Snc Meteorites, Shergottites, Nakhlites, Chassigny, Martian Meteorites, Abundance, Samples, Meteorite, Parent Material, Magma, Mantle, Composition, Igneous Rock, Solidification, Crystallization, Comparisons, Melting, Shergotty, Governador Valadares, Lew 88516, Lew Meteorites, Antarctic Meteorites

Scientific paper

The SNC (shergottite-nakhlite-chassignite) meteorites, thought to be igneous rocks from Mars, contain melt inclusions trapped at depth in early-formed crystals. Determination of the pre-eruptive water contents of SNC parental magmas from calculations of the solidification histories of these amphibole-bearing inclusions indicates that Martian magmas commonly contained 1.4 percent water by weight. When combined with an estimate of the volume of igneous materials on Mars, this information suggests that the total amount of water outgassed since 3.9 billion years ago corresponds to global depths on the order of 200 meters. This value is significantly higher than previous geochemical estimates but lower than estimates based on erosion by floods. These results imply a wetter Mars interior than has been previously thought and support suggestions of significant outgassing before formation of a stable crust or heterogeneous accretion of a veneer of cometary matter.

Affiliated with

Also associated with

No associations

Rating

Outgassed water on Mars - Constraints from melt inclusions in SNC meteorites does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Outgassed water on Mars - Constraints from melt inclusions in SNC meteorites, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Outgassed water on Mars - Constraints from melt inclusions in SNC meteorites will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1707600