Mare Anguis

Coordinates: 22°36′N 67°42′E / 22.6°N 67.7°E / 22.6; 67.7
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Mare Anguis
Coordinates
22°36′N 67°42′E / 22.6°N 67.7°E / 22.6; 67.7
Diameter146 km (91 mi)[1]
EponymSerpent Sea

Mare Anguis

Nectarian System, meaning that it was formed during the Nectarian time period. Like most mare, the surface of Mare Anguis is dark, indicating that it has been filled with volcanic basalt. It forms part of a concentric ring to the northeast of the Crisium rim, and it lies at an elevation 800 m above Mare Crisium. Channels lead down from Mare Anguis to Mare Chrisium, with some possible indications of lava flow.[2]

The small, 7–km diameter crater Eimmart A lies at the east edge of Mare Anguis. It is a proposed source for the Antarctic meteorite ALHA81005.[3] The impact appears to have excavated mare basalt, which probably accounts for the olivine/low-Ca pyroxene mixture found in the spectrum.[4]

Oblique view of Mare Anguis from Apollo 17

See also

References

  1. ^ a b "Mare Anguis". Gazetteer of Planetary Nomenclature. USGS Astrogeology Research Program.
  2. Bibcode:1978mcvl.conf...43H
    .
  3. Bibcode:1994LPI....25..127B
    .
  4. S2CID 140661358
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