Mud spreads like lava on the red planet
Inject new reverie into the existence of Martian life
Science and Technology Daily, Beijing, May 18 (Reporter Zhang Mengran) According to a planetary scientific study published online on the 18th by the British journal Earth Science, European scientists discovered for the first time that the flow behavior of mud under low pressure and low temperature on the surface of Mars is precisely Similar to the lava flow on the earth.
We have determined that thousands of volcanic landforms are distributed on the surface of Mars. There are also fluids on Mars, some of which are believed to come from volcanism.
These landforms are more common in the terrain covered by sediments. These places were thought to contain ancient floods, and the rapid burial of wet deposits may have caused sedimentary volcanism.
Scientists believe that if there were primitive life forms such as microorganisms on Mars, they will probably exist in mud volcanoes, that is, mud volcanic eruptions may contain ancient or current Martian life signs.
Therefore, the analysis and description of volcanic mud is likely to inject new reverie into the existence of Martian life. However, scientists have long been unclear about the flow of mud on Mars.
This time, scientists including Petra Braz, a scientist at the Institute of Geophysics of the Czech Academy of Sciences, have experimentally studied the diffusion of mud on the cold surface under the conditions of Mars.
The research team poured mud on a sloping plate in the Mars Experiment Module of the Open University.
They observed that the flow of the mud is not the same as the mud on the earth, but more like a thick, uneven lava flow on the earth, and the mud will quickly form a frozen shell around the mud.
The results of this study suggest that fluids on cold objects such as Mars and dwarf planet Ceres may be the product of mud volcanism, not evidence of magmatic activity.
In the future, scientists will also continue to analyze volcanic mud data with a view to clarifying more information before humans formally set foot on Mars.
Researchers have previously stated that muds that have reached 3 billion years old may be difficult to find signs of life because they exist for a long time, and microbial signs in surface rocks and soil have been exposed to ultraviolet rays and other radiation for a long time.
damage. For this reason, if studying the signs of life, the best area is the recently formed mud volcanoes or collision craters and young torrent sedimentary areas.
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