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craters

Type(s): Concept

Hierarchy (Broader/Narrower)

Internal Occurrences (1)

  • Definition
    • Circular-shaped depressions at the summit of a volcanic core or on the surface of the land caused by the impact of a meteorite; man-made depressions caused by an explosion. [USGS GNIS Feature Class Definitions http://mapping.usgs.gov/www/ti/GNIS/gnis_users_guide_appendixc.html]
 
Object id: 1777
Item identifier(s):
[file:/apps/ontopia.net/tomcat/ontopia-5.3.0/topicmaps/ADL-FTT.xtm#id1468]