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# | craters | tractus Catena | |
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Cavus, cavi | Arc-shaped feature | Peraea Cavus | ||
Chaos, chaoses | Aurorae Chaos | |||
Chasma, chasmata | A deep, elongated,ression | Eos Chasma | ||
Collis, colles | Small hills or knobs | Tartarus Colles | ||
Corona, coronae | Ovoid-shaped feature | |||
Crater, craters | A circular depression | Victoria crater | ||
Dorsum, dorsa | Ridge | Eumenides Dorsum | ||
Facula, faculae | Bright spot | |||
Farrum, farra | Pancake-like structure, or a row of such structures | |||
Flexus, flexūs | A very low curvilinear ridge with a scalloped pattern | |||
Fluctus, fluctūs | Flow terrain | Tantalus Fluctus | ||
Fossa, fossae | Long, narrow depression | Mangala Fossa | ||
Insula, insulae | Island (islands), an isolated land area (or group of such areas) surrounded by, or nearly surrounded by, a liquid area (sea or lake). |
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Labes, labēs | Landslide | |||
Labyrinthus, labyrinthi | Complex of intersecting valleys or ridges. | Noctis Labyrinthus | ||
Lacus, lacūs | "Lake" or small plain | Ismenius Lacus | ||
Large ringed feature | Cryptic ringed features | |||
Linea, lineae | A dark or bright elongate marking, may be curved or straight | |||
Lingula, lingulae | Extension of plateau having rounded lobate or tongue-like boundaries | Gemina Longula | ||
Macula, maculae | Dark spot, may be irregular | |||
Mare, maria | "Sea"; large circular plain | Mare Acidalium | ||
Mensa, mensae | A flat-topped prominence with cliff-like edges | |||
Mons, montes | Mountain | Olympus Mons | ||
Palus,paludes | "Swamp"; small plain | Cerberus Palus | ||
Patera, paterae | An irregular crater, or a complex one with scalloped edges | |||
Planitia, planitiae | Low plain | Utopia Planitia | ||
Planum, plana | Plateau or high plain | Daedalia Planum | ||
Promontorium, promontoria | Cape"; headland promontoria | |||
Regio, regiones | A large area marked by reflectivity or color distinctions from adjacent areas, or a broad geographic region | Deucalionis Regio | ||
Rima, rimae | Fissure | |||
Rupes, rupēs | Scarp | Utopia Rupes | ||
Scopulus, scopuli | Lobate or irregular scarp | Oenotria Scopulus | ||
Sinus, sinūs | "Bay"; small plain | Aonium Sinus | ||
Sulcus, sulci | Subparallel furrows and ridges | |||
Terra, terrae | Extensive land mass | Terra Cimmeria | ||
Tessera, tesserae | Tile-like, polygonal terrain | |||
Tholus, tholi | Small domical mountain or hill | Hecatus Tholus | ||
Unda, undae | Dunes | Olympia Undae | ||
Vallis, valles | Valley | Ares Vallis | ||
Vastitas, vastitates | Extensive plain | Vastitas Borealis | ||
Virga, virgae | A streak or stripe of color |