A Mossbauer investigation of iron-rich terrestrial hydrothermal vent systems: lessons for Mars exploration [0.03%]
富铁热液系统的摩斯巴赫研究:火星探测的启示
M L Wade,D G Agresti,T J Wdowiak et al.
M L Wade et al.
Hydrothermal spring systems may well have been present on early Mars and could have served as a habitat for primitive life. The integrated instrument suite of the Athena Rover has, as a component on the robotic arm, a Mossbauer spectrometer...
Comparative Study
Journal of geophysical research. 1999 Apr 25;104(E4):8489-507. DOI:10.1029/1998je900049 1999
Origin of carbonate-magnetite-sulfide assemblages in Martian meteorite ALH84001 [0.03%]
火星陨石ALH84001中碳酸盐-磁铁矿-硫化物共生矿物组合的成因分析
E R Scott
E R Scott
A review of the mineralogical, isotopic, and chemical properties of the carbonates and associated submicrometer iron oxides and sulfides in Martian meteorite ALH84001 provides minimal evidence for microbial activity. Some magnetites resembl...
Petrologic evidence for low-temperature, possibly flood evaporitic origin of carbonates in the ALH84001 meteorite [0.03%]
ALH84001陨石中碳酸盐的低温(可能是洪水蒸发)成因的岩石学证据
P H Warren
P H Warren
High-temperature models for origin of the carbonates in Martian meteorite ALH84001 are implausible. The impact metasomatism model, invoking reaction between CO2 rich fluid and the host orthopyroxenite, requires conversion of olivine into or...
A P Zent
A P Zent
A revised model of the diffusion of H2O2 through the Martian regolith is presented, which argues that oxidant diffusion may be more efficient than previously thought. Recent models of the adsorption of H2O at Mars-like conditions indicate t...
Landed XRD/XRF analysis of prime targets in the search for past or present Martian life [0.03%]
火星生命探测主要目标的着陆X射线衍射和荧光分析
D Vaniman,D Bish,D Blake et al.
D Vaniman et al.
Mars landers seeking evidence for past or present life will be guided by information from orbital mapping and from previous surface exploration. Several target options have been proposed, including sites that may harbor extant life and site...
Alteration processes in volcanic soils and identification of exobiologically important weathering products on Mars using remote sensing [0.03%]
利用遥感技术研究火山土壤的风化过程及火星上与寻找地外生物有关的重要次生矿物识别能力
J L Bishop,H Froschl,R L Mancinelli
J L Bishop
Determining the mineralogy of the Martian surface material provides information about the past and present environments on Mars which are an integral aspect of whether or not Mars was suitable for the origin of life. Mineral identification ...
Comparative Study
Journal of geophysical research. 1998 Dec 25;103(E13):31457-76. DOI:10.1029/1998je900008 1998
S Clifford,A Treiman,H Newsom et al.
S Clifford et al.
Ongoing studies of the evolution of the Martian cratered highlands, the nature of the planet's early climate, and the recent announcement of possible evidence of ancient life in the ALH 84001 meteorite have reinvigorated interest in the con...
B M Jakosky,E L Shock
B M Jakosky
The potential biomass that could have existed on Mars is constrained by the total amount of energy available to construct it. From an inventory of the available geochemical sources of energy, we estimate that from the time of the onset of t...
Sensitivity study of advection and diffusion coefficients in a two-dimensional stratospheric model using excess carbon 14 data [0.03%]
一氧化碳过剩量数据在二维平流层模型中研究传输和扩散系数的敏感性分析
R L Shia,Y L Yung,M Allen et al.
R L Shia et al.
Using the California Institute of Technology/Jet Propulsion Laboratory two-dimensional transport model, with transport coefficients taken from Yang and Tung (1989), we study the time evolution of excess carbon 14 in the stratosphere and the...
El Chichon volcanic aerosols: impact of radiative, thermal, and chemical perturbations [0.03%]
埃尔奇琴博火山灰:辐射、热和化学扰动的影响
D V Michelangeli,M Allen,Y L Yung
D V Michelangeli
We examine the consequences of the eruption of the El Chichon volcano on the Earth's stratospheric chemistry. Formed after the eruption, the volcanic aerosol cloud, with a peak particle density at 27 km, was very efficient at altering the r...