Physics
Scientific paper
Apr 1985
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985pggp.rept..229h&link_type=abstract
In NASA, Washington Repts. of Planetary Geol. and Geophys. Program p 229-231 (SEE N85-23474 13-91)
Physics
Basalt, Biosphere, Lava, Magma, Planetary Atmospheres, Planetary Mantles, Volatility, Geomorphology, Planetary Geology, Thermophysical Properties
Scientific paper
The composition of early planetary atmospheres and biospheres which is a knowledge of the relationship between mantle volatiles and volcanic gases was analyzed. In the case of Earth it appears that volcanic rocks and gases are relatively oxidized compared to the upper mantle. In the case of the C-O-H volatiles, (H2O, CO2, CO, CH4, H2) the volcanic gases are enriched in H2O and CO2 while the volatiles in the mantle may be dominated by H2O, H2 and possibly CH4. An experimental technique was perfected for phase equilibrium studies in the 5-30 kbar range which allows accurate control of volatile species activities in the fluid phase. The system was used to measure the relative solubilities of H2O, CO2, CO, CH4 and H2 in magmas at 10 kbar pressure. It is found that mantle magmas will selectively screen volatiles from planetary surfaces, forcing volcanic gases towards the neutral QFM oxidation state where H2O is the dominant species.
Holloway John R.
Jakobsson Sigurdur
No associations
LandOfFree
Magmas as selective filters of volatiles between planetary mantles and surfaces 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 Magmas as selective filters of volatiles between planetary mantles and surfaces, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Magmas as selective filters of volatiles between planetary mantles and surfaces will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1290025