hummocky surface

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• Kuiper quadrangle — The Kuiper quadrangle, located in a heavily cratered region of Mercury, includes the young, 55 km diameter crater Kuiper (11° S., 31.5° ), which has the highest albedo recorded on the planet (Hapke and others, 1975), and the small crater Hun Kal… …   Wikipedia

• Bach quadrangle — The Bach quadrangle encompasses the south polar part of Mercury poleward of latitude 65° S.Mariner 10 photographyAbout half of the region was beyond the terminator during the three Mariner 10 encounters and hence not visible. The entire mapped… …   Wikipedia

• Holderness — ▪ peninsula and region, England, United Kingdom       low lying peninsula and geographic region, geographic county of East Riding of Yorkshire, historic county of Yorkshire, England, between the River Humber estuary and the North Sea. The plain… …   Universalium

• debris avalanche — ALASKA VOLCANO OBSERVATORY GLOSSARY Rapidly moving, dry flows of disaggregated rock debris, sand, and silt. Volcanic debris avalanches commonly form by some type of structural collapse of the volcano, usually the steep front of the cooled lava… …   Glossary of volcanic terms

• Borealis quadrangle — The Borealis quadrangle is a quadrangle on Mercury surrounding the north pole down to 65° latitude (see also: geography of Mars).It contains the Goethe Basin, whose diameter of at least convert|400|km|abbr=on makes it the sixth largest impact… …   Wikipedia

• Hummock — A hummock (of uncertain derivation; cf. hump or hillock) is a boss or rounded knoll of ice rising above the general level of an ice field, making sledge travelling in the Arctic and Antarctic region extremely difficult and unpleasant.Hummocky ice …   Wikipedia

• Discovery quadrangle — Mariner 10 photomosaic The Discovery quadrangle lies within the heavily cratered part of Mercury in a region roughly antipodal to the 1550 km wide Caloris Basin. Like the rest of the heavily cratered part of the planet, the quadrangle contains a… …   Wikipedia

• Drunken trees — Not to be confused with the floss silk tree, also known as the drunken tree or palo borracho. A drunken forest in Siberia caused by melting permafrost. NASA photo. Drunken trees, tilted trees, or a drunken forest, is a stand of trees displaced… …   Wikipedia

• Tolstoj quadrangle — The Tolstoj quadrangle in the equatorial region of Mercury runs from 144 to 216° longitude and 25 to 25° latitude. It was provisionally called Tir , but renamed after Leo Tolstoy by the International Astronomical Union in 1976. [International… …   Wikipedia

• Augustine Volcano — Augustine Volcano, 1976 Elevation 4,134 ft (1,260 m)  …   Wikipedia

• Goethe Basin — Mercury crater data caption = latitude = 78.5 N or S = N longitude = 44.5 E or W = W diameter = 383 km depth = eponym = Johann Wolfgang von GoetheGoethe Basin is a 383 km diameter impact basin at 78.5° N, 44.5° W on Mercury. It is named after… …   Wikipedia