Maat Mons

Coordinates: 0°30′N 194°36′E / 0.5°N 194.6°E / 0.5; 194.6
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Maat Mons
Atla Regio, Venus
Coordinates0°30′N 194°36′E / 0.5°N 194.6°E / 0.5; 194.6[1]
Diameter395 km (245 mi)
Peak
  • 4.9 km (3.0 mi) 16,076 ft (4,900 m)
  • 8 km (5.0 mi) 26,247 ft (8,000 m) above mean.
Eponym
Ma'at

Maat Mons is a massive

Ma'at
.

Geology

Maat Mons is a large shield volcano located in

Atla Regio, a site of recent tectonic rifting possibly fed by an active mantle plume.[3] Three other neighbouring major volcanic centres are situated within Atla Regio, Ozza Mons, Ongwuti Mons, and an unnamed mons. Interpretation of their respective radial dike swarm features indicates that Maat Mons is the youngest volcanic centre within Atla Regio, fed by the same mantle plume which gave rise to the previous volcanic centres.[4]

Structure

Maat Mons has a large summit

Magellan probe reveals no evidence of lava flows from these craters.[5]

At least two large-scale structural collapse events seem to have occurred in the past on Maat Mons.[5]

Maat Mons is surrounded by a radial dike swarm, with grabens extending over 1,500 kilometres from the volcano's centre.[4]

Modern activity

Intriguingly for

plinian eruptions at Maat Mons.[6]

More recent studies have suggested that the volcano structure, distribution of lava flows, pit craters, summit morphology, and other small-scale features are indicative of recent volcanic activity on Maat Mons.[7]

A study published by the journal Science in 2023 concluded that there has been recent volcanic activity on Maat Mons. The study analyzed images taken between 1990 and 1992 by the Magellan spacecraft. These images, taken eight months apart, displayed changes to the volcanic vent's shape and dramatically increased in size.[8] The image also showed features that have been interpreted as lava flows.[9]

See also

References

  1. ^ "Maat Mons". Gazetteer of Planetary Nomenclature. USGS Astrogeology Research Program.
  2. Jet Propulsion Lab
    . 1996-08-01. Retrieved 2012-06-30.
  3. ^ Klidaras, A. T.; Mason, P. J. (March 2022). Mapping Recent Activity on Venus: The Tectono-Magmatic Evolution of Ozza Mons and the History of Atla Regio (PDF). 53rd Lunar and Planetary Science Conference. The Woodlands, Texas.
    Bibcode:2022LPICo2678.1893K
    . 1893.
  4. ^
    doi:10.1038/s43247-023-00901-7
    .
  5. ^
    Bibcode:1994LPI....25..949M
    .
  6. doi:10.1029/95JE00147
    .
  7. doi:10.1016/j.icarus.2016.05.022
    .
  8. S2CID 257575797
    .
  9. doi:10.1126/science.abm7735
    .

External links
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