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The crater is named after the Greek mathematician Euclid.
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crater and is
* The crater Anaximenes on the Moon is named in his honour.
* Balboa ( lunar crater ), a lunar crater that is located near the western limb of the Moon
The higher altitudes of the islands are accessible on the islands of Fogo, where there is a road to the volcano and walks up to the crater, and the mountainous Santo Antão where there are hiking routes.
However, the top of the system is sharply defined, being placed at an iridium-rich layer found worldwide that is believed to be associated with the Chicxulub impact crater in Yucatan and the Gulf of Mexico.
In addition to the Chicxulub Crater, there is the Boltysh crater in Ukraine, the Silverpit crater, a suspected impact crater in the North Sea, and the controversial and much larger Shiva crater.
Meteor Crater is perhaps the best-known example of a small impact crater on the Earth.
Since that time, the rate of crater production on Earth has been considerably lower, but it is appreciable nonetheless ; Earth experiences from one to three impacts large enough to produce a 20 km diameter crater about once every million years on average.
Daniel Barringer ( 1860 – 1929 ) was one of the first to identify an impact crater, Meteor Crater in Arizona ; to crater specialists the site is referred to as Barringer Crater in his honor.
In practice, there is overlap between the three processes with, for example, the excavation of the crater continuing in some regions while modification and collapse is already underway in others.
The subsequent excavation of the crater occurs more slowly, and during this stage the flow of material is largely sub-sonic.
Ejecta thrown out of the crater do not include material excavated from the full depth of the transient cavity ; typically the depth of maximum excavation is only about a third of the total depth.
As a result, about one third of the volume of the transient crater is formed by the ejection of material, and the remaining two thirds is formed by the displacement of material downwards, outwards and upwards, to form the elevated rim.
Most material ejected from the crater is deposited within a few crater radii, but a small fraction may travel large distances at high velocity, and in large impacts it may exceed escape velocity and leave the impacted planet or moon entirely.
As ejecta escapes from the growing crater, it forms an expanding curtain in the shape of an inverted cone ; the trajectory of individual particles within the curtain is thought to be largely ballistic.
In small craters, less than about 4 km diameter on Earth, there is some limited collapse of the crater rim coupled with debris sliding down the crater walls and drainage of impact melts into the deeper cavity.
crater and named
* Asimov ( crater ), an impact crater on Mars, named after Isaac Asimov
* Catalán ( crater ), a lunar crater named for Miguel Ángel Catalán
The crater Lyell on the Moon and a crater on Mars were named in his honour.
He was elected a fellow of the Royal Society, a foreign member of the Royal Swedish Academy of Sciences in 1823, and the largest crater in the Moon's Mare Serenitatis is named Bessel after him.
He received the Nobel Prize for Chemistry in 1921, and named after him is small crater on the far side of the Moon and the radioactive Uranium mineral, Soddyite.
The lunar crater Soddy is named after him, as is the uranium compound Soddyite, found in the Democratic Republic of Congo.
The crater Bayer on the Moon is named after him.
A crater on Mars and a promontorium on the Moon are also named in his honour.
A statue of Abel stands in Oslo, and crater Abel on the Moon was named after him.
The crater La Caille on the Moon is named after him.
The crater Proclus on the Moon is named after him.
The crater Regiomontanus on the Moon is named after him.
* A large crater covering the Moon's south pole is named Amundsen
A crater, Valhalla, located on the planet Jupiter's moon Callisto, is named after the hall.
* Zeno ( crater ), a lunar impact crater, named for Zeno of Citium
* Birmingham ( crater ), a lunar crater named for John Birmingham
The crater Zeno on the Moon is named in his honor.
Boolean algebra is named after him, as is the crater Boole on the Moon.
The crater Lilius on the Moon is named after him.
crater and after
About four hours after the beginning of EVA-1, the pair mounted the lunar rover and drove to the first geologic stop, Plum Crater, a crater on the rim of Flag Crater, a crater across.
Mount Baker has the second-most thermally active crater in the Cascade Range after Mount Saint Helens.
* The crater Flamsteed on the Moon is named after him.
Drygalski Island, Drygalski Glacier, Drygalski Fjord in South Georgia, and an avenue in the southern part of Munich were named after him, as is the crater Drygalski on the Moon.
The village of Herschel in western Saskatchewan ( Canada ), Mount Herschel ( Antarctica ), the crater J. Herschel on the Moon, and the Herschel Girls School in Cape Town ( South Africa ), are all named after him.
A lunar crater has been named after Dalton.
The crater, Ulugh Beigh, on the Moon, was named after him by the German astronomer Johann Heinrich von Mädler on his 1830 map of the Moon.
The large ( 90-kilometer ) crater Fabricius in the Moon's southern hemisphere is named after David Fabricius.
The port city of Vasco da Gama in Goa is named after him, as is the crater Vasco da Gama on the Moon.
The lunar crater Menelaus is named after him.
Unit after unit charged into and around the crater, where soldiers milled in confusion.
0.077 seconds.