Dorsa Harker

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Dorsa Harker is a wrinkle ridge at 14°30′N64°00′E / 14.5°N 64.0°E / 14.5; 64.0 in Mare Crisium on the Moon. It is 213 km long and was named after Alfred Harker, an English petrologist, 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 Crisium lunar mare

Mare Crisium is a lunar mare located in the Moon's Crisium basin, just northeast of Mare Tranquillitatis. The basin is of the Pre-Imbrian period, 4.55 to 3.85 billion years ago.

Moon Earths natural satellite

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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Fahrenheit (crater) lunar crater

Fahrenheit is a tiny lunar impact crater located in the southeast part of the Mare Crisium. This area of the surface is nearly devoid of impact features of interest. To the east are the Dorsa Harker wrinkle ridges, and beyond them is Promontorium Agarum at the edge of the mare. The landing site of the Soviet Luna 24 probe is located about 15 kilometers to the southeast.

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Alfred Harker FRS was an English geologist who specialised in petrology and interpretive petrography. He worked for the Geological Survey of Scotland and conducted extensive surveying and geological studies of western Scotland and the Isle of Skye. He and other British geologists pioneered the use of thin sections and the petrographic microscope in interpretive petrology.

Harker may refer to:

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Dorsa Aldrovandi is a wrinkle ridge system at 23.6°N 28.7°E in Mare Serenitatis on the Moon. It is about 127 km long and was named after the 16th century Italian naturalist Ulisse Aldrovandi. The north end of the feature is at the crater Le Monnier, and the south end is close to the craters Clerke and Abetti.

Dorsa Andrusov wrinkle ridge

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Dorsa Barlow wrinkle ridge

Dorsa Barlow is a wrinkle ridge system on the Moon, in Mare Tranquilitatis near the border with Mare Serenitatis, centered at 14.0°N 30.6°E. It is about 110 km long and was named after British crystallographer William Barlow in 1976.

Dorsa Smirnov wrinkle ridge

Dorsa Smirnov is a wrinkle ridge system at 27.3°N 25.3°E in eastern Mare Serenitatis on the Moon. It is 222 km long and was named after Soviet geologist Sergei Sergeevich Smirnov by the IAU in 1976.

Dorsa Lister wrinkle ridge

Dorsa Lister is a wrinkle ridge system at 20.3°N 23.8°E on the Moon, in southern Mare Serenitatis. It is 180 km in diameter and was named after English naturalist and physician Martin Lister in 1976.

Dorsa Burnet wrinkle ridge

Dorsa Burnet are wrinkle ridges at 28.4°N 57.0°W in Oceanus Procellarum on the Moon. They are about 194 km long and were named after Thomas Burnet by the IAU in 1976.

Dorsa Cato wrinkle ridge

Dorsa Cato is a wrinkle ridge at 1.0°N 47.0°E on the Moon. It is approximately 130 km long and was named after Roman geological engineer Cato the Elder in 1976 by the IAU.

Dorsa Dana is a wrinkle ridge at 3.0°N 90.0°E in Mare Smythii on the Moon. It is 82 km long and was named after American geologist James Dwight Dana in 1976.

Dorsa Sorby wrinkle ridge

Dorsa Sorby is a wrinkle ridge system at 19.0°N 14.0°E in Mare Serenitatis on the Moon. It is 76 km long and was named after British geologist Henry Clifton Sorby in 1976.

Dorsa Stille is a wrinkle ridge system at 27.0°N 19.0°W in Mare Imbrium on the Moon. It is 66 km long and was named after German geologist Hans Stille in 1976.

Dorsa Tetyaev wrinkle ridge

Dorsa Tetyaev is a wrinkle ridge system at 19.9°N 64.2°E in Mare Crisium on the Moon. It is 188 km long and was named after Soviet geologist Mikhail Mikhailovich Tetyaev in 1979.

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Cibele Dorsa Brazilian actress

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References

  1. "Dorsa Harker" . Gazetteer of Planetary Nomenclature. USGS Astrogeology Research Program.