Manganese oxides as high-pε redox buffers on Mars |
| |
| Authors: | Thomas R Blackburn |
| |
| Institution: | Program in Chemistry and Physics, St. Andrews Presbyterian College, Laurinburg, North Carolina 28352, USA |
| |
| Abstract: | The x-ray photoelectron spectrum of Mn(VI) is closely similar to that of uv-irradiated MnO2, previously reported to simulate the Viking gas exchange reaction. β-MnO2 is the thermodynamically stable form of manganese on the surface of Mars, and MnO2 abundances estimated from shergottite, nakhlite, and chassignite iron/manganese ratios are sufficient to account for the oxidant buffer capacity observed by Viking. |
| |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
