叶状陡坡
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thumb|right|360 px|False color oblique view of Nilokeras Scopulus on Mars. Mars Orbital Laser Altimeter (MOLA) colorized elevation overlying [[Thermal Emission Imaging System (THEMIS) Infrared (IR) daytime mosaic from Mars Odyssey spacecraft. Yellow and light green represent high elevations; dark green and blue are lower elevations. Image is approximately 175 km across. Vertical exaggeration is 3X.]] In planetary geology, a scopulus (pl. scopuli , from Greek σκόπελος "peak") is a lobate or irregular escarpment. In the early 1970s, the International Astronomical Union (IAU) adopted scopulus as
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- Avalanche on Mars February 19th 2008 01.jpg
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Article · 中文
在行星地质学中，叶状陡坡（scopulus）/ˈskɒpjʊləs/（复数：“scopuli”/ˈskɒpjʊlaɪ/，源自希腊语“σκόπελος”-“山峰”）是一种叶状或不规则悬崖。20世纪70年代初，国际天文学联合会采用“叶状陡坡”作为火星和其他行星及卫星上地形特征的官方描述词之一，使用中性拉丁语或希腊语描述符的理由之一，是允许在某特征的地质或地貌确定前对它进行命名和描述。目前，国际天文学联合会认可了54种描述符术语（参见行星体系命名法），火星上有13处具有描述词叶状陡坡的特征。
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