Dorsum Higazy

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Dorsum Higazy is a wrinkle ridge at 28°00′N17°00′W / 28.0°N 17.0°W / 28.0; -17.0 in Mare Imbrium on the Moon. It is 63 km long and was named after Egyptian geologist Riad Higazy in 1976. [1]

Wrinkle ridge ridge, feature commonly found on lunar maria

A wrinkle ridge is a type of feature commonly found on lunar maria. These features are low, sinuous ridges formed on the mare surface that can extend for up to several hundred kilometers. Wrinkle ridges are tectonic features created when the basaltic lava cooled and contracted. They frequently outline ring structures buried within the mare, follow circular patterns outlining the mare, or intersect protruding peaks. They are sometimes called veins due to their resemblance to the veins that protrude from beneath the skin. These are found near craters.

Mare Imbrium vast lunar mare filling a basin on Earths Moon

Mare Imbrium is a vast lava plain within the Imbrium Basin on the Moon and is one of the larger craters in the Solar System. The Imbrium Basin formed from the collision of a proto-planet during the Late Heavy Bombardment. Basaltic lava later flooded the giant crater to form the flat volcanic plain seen today. The basin's age has been estimated using uranium–lead dating methods to 3938 ± 4 million years ago, the diameter of the impactor has been estimated to be 250 ± 25 km. The Moon's maria have fewer features than other areas of the Moon because molten lava pooled in the craters and formed a relatively smooth surface. Mare Imbrium is not as flat as it was originally because later events have altered its surface.

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The Moon is an astronomical body that orbits planet Earth and is Earth's only permanent natural satellite. It is the fifth-largest natural satellite in the Solar System, and the largest among planetary satellites relative to the size of the planet that it orbits. The Moon is after Jupiter's satellite Io the second-densest satellite in the Solar System among those whose densities are known.

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Dorsum Heim wrinkle ridge

Dorsum Heim is a wrinkle ridge at 32.0°N 29.8°W in Mare Imbrium on the Moon. It is 148 km long and was named after Swiss geologist Albert Heim in 1976.

Dorsum Bucher wrinkle ridge

Dorsum Bucher is a wrinkle ridge at 31.0°N 39.0°W in the border region between Oceanus Procellarum and Mare Imbrium on the Moon. The name of the feature was approved by the IAU in 1976. It is approximately 85 km long, extending from the vicinity of Gruithuisen crater to the area west of Delisle crater. The south end of the dorsum is a low hill of terra material that predates the mare lava.

Dorsum Cloos is a wrinkle-ridge at 1.0°N 91.0°E in Mare Smythii on the Moon. It is 103 km long and was named after German geologist Hans Cloos in 1976.

Dorsum Cushman is a wrinkle ridge at 1.0°N 49.0°E in Mare Fecunditatis on the Moon. It is 86 km long and was named after American micropaleontologist Joseph Augustine Cushman in 1976.

Dorsum Gast is a wrinkle ridge at 24.0°N 9.0°E in Mare Serenitatis on the Moon. It is 65 km long and was named after American geochemist and geologist Paul Werner Gast in 1973.

Dorsum Guettard is a wrinkle-ridge at 10.0°S 18.0°W in Mare Cognitum on the Moon. It is 40 km long and was named after French geologist and mineralogist Jean-Étienne Guettard in 1976.

Dorsum Nicol wrinkle ridge

Dorsum Nicol is a wrinkle ridge on the Moon at 18.0°N 23.0°E in Mare Serenitatis near the border of Mare Tranquilitatis. It is 44 km long and was named after Scottish physicist William Nicol in 1976.

Dorsum Niggli is a wrinkle ridge at 29.0°N 52.0°W in Oceanus Procellarum on the Moon. It is 50 km long and was named after Paul Niggli in 1976.

Dorsum Owen wrinkle ridge

Dorsum Owen is a wrinkle ridge at 25.0°N 11.0°E in Mare Serenitatis on the Moon. It is 33 km long and was named after British geologist George Owen of Henllys in 1976.

Dorsum Termier wrinkle ridge

Dorsum Termier is a wrinkle ridge at 11.0°N 58.0°E in Mare Crisium on the Moon. It is 90 km long. It was named after French geologist Pierre-Marie Termier in 1976.

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References

  1. "Dorsum Higazy" . Gazetteer of Planetary Nomenclature. USGS Astrogeology Research Program.