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单词 fossa
释义
fossa

Astronomy
  • A long, narrow, straight linear depression on a planetary surface; pl. fossae. The name, which means ‘ditch’ or ‘trench’, is not a geological term but is used in the nomenclature of individual features, for example Erythraea Fossa on Mars and Lakhmu Fossae on Ganymede.


Geology and Earth Sciences
  • A linear depression on a planetary surface, closely analogous to a terrestrial fault-bounded depression or graben. The radial fractures with mainly normal faults (e.g. Tempe, Tantalus Menonia, Claritas fossae, etc.) which surround the Tharsis bulge on Mars, form type examples.


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