Evidence for Large Planetary Climate Altering Thermonuclear Explosions on Mars in the Past  

作　　者：John E. Brandenburg John E. Brandenburg(Kepler Aerospace Ltd., Midland, USA)

机构地区：[1]Kepler Aerospace Ltd., Midland, USA

出　　处：《International Journal of Astronomy and Astrophysics》2023年第2期112-139,共28页天文学与天体物理学国际期刊（英文）

摘　　要：Mars data presents a collection of startling and seemly contradictory isotopic data: a glaring excess of the two radiogenic isotopes ¹²⁹Xe/¹³²Xe @ 2.5 and ⁴⁰Ar/³⁶Ar @ 3000 enabled identification of MM (Mars Meteorites) because they are so different than any other major Solar System reservoir. Mars appears to have lost an original atmosphere of pressure 1 bar or greater, yet the ratio ¹⁴N/¹⁵N indicates only a loss of a few millibar by Solar Wind Erosion. The LPARE (Large Planet Altering R-process Event) hypothesis attempts to explain these major isotopic puzzles at Mars by postulating that two massive, anomalous thermonuclear explosions, rich in R-process physics, occurred over the surface of Northern Mars in the past, approximately 500 million years ago, and that these explosions created the ¹²⁹Xe/¹³²Xe excess, and the accompanying intense neutron bombardment of Mars atmosphere and regolith created the ⁴⁰Ar/³⁶Ar excess off of potassium in the surface rocks. The collateral massive and non-mass fractionating atmospheric loss, and the intense neutron bombardment of ¹⁴N in the atmosphere primarily created the ¹⁴N/¹⁵N ratio we presently observe, with some mass fractionating erosion of the residual atmosphere. This LPARE hypothesis is found to explain other isotopic features of Mars atmosphere and surface. ⁸⁰Kr and ⁸²Kr are hyperabundant in the Mars atmosphere and in the youngest MMs indicating intense irradiation of Mars surface with neutrons. Although there is presently no plausible explanation for the nuclear events, the hypothesis can be tested through related nuclear products such as Pu-244.Mars data presents a collection of startling and seemly contradictory isotopic data: a glaring excess of the two radiogenic isotopes ¹²⁹Xe/¹³²Xe @ 2.5 and ⁴⁰Ar/³⁶Ar @ 3000 enabled identification of MM (Mars Meteorites) because they are so different than any other major Solar System reservoir. Mars appears to have lost an original atmosphere of pressure 1 bar or greater, yet the ratio ¹⁴N/¹⁵N indicates only a loss of a few millibar by Solar Wind Erosion. The LPARE (Large Planet Altering R-process Event) hypothesis attempts to explain these major isotopic puzzles at Mars by postulating that two massive, anomalous thermonuclear explosions, rich in R-process physics, occurred over the surface of Northern Mars in the past, approximately 500 million years ago, and that these explosions created the ¹²⁹Xe/¹³²Xe excess, and the accompanying intense neutron bombardment of Mars atmosphere and regolith created the ⁴⁰Ar/³⁶Ar excess off of potassium in the surface rocks. The collateral massive and non-mass fractionating atmospheric loss, and the intense neutron bombardment of ¹⁴N in the atmosphere primarily created the ¹⁴N/¹⁵N ratio we presently observe, with some mass fractionating erosion of the residual atmosphere. This LPARE hypothesis is found to explain other isotopic features of Mars atmosphere and surface. ⁸⁰Kr and ⁸²Kr are hyperabundant in the Mars atmosphere and in the youngest MMs indicating intense irradiation of Mars surface with neutrons. Although there is presently no plausible explanation for the nuclear events, the hypothesis can be tested through related nuclear products such as Pu-244.

关 键 词：MARS ISOTOPES XENON ARGON Nitrogen Potassium THORIUM Thermonuclear Explosion 

分 类 号：O57[理学—粒子物理与原子核物理]