Grooves (Irregular Body)

Living reference work entry


Linear depressions or troughs that often appear in parallel sets or families, on irregular bodies.



Linear features, variously described as grooves, troughs, striations, lineations, or lineaments, observed on several irregular bodies (e.g., Thomas and Prockter 2010). Grooves are often described as pitted or beaded and are sometimes flanked by raised ridges. Grooves can cover a significant portion of a small body’s surface.


While their characteristics vary, grooves on small bodies are typically 10–20 m deep, 100–200 m wide, and anywhere from 1 km to up to 20 km in length (Veverka and Duxbury 1977; Veverka et al. 1994; Sullivan et al. 1996; Prockter et al. 2001, 2002; Buczkowski et al. 2008; Morrison et al. 2009). Still finer grooves (on the order of 10–20 m in width) have been identified on 433 Eros where the NEAR spacecraft imagery reached resolutions as high as ~5 m/pixel. Grooves up to 15 km wide...


Parent Body Secondary Impact Tidal Stress Secondary Crater Irregular Body 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.
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© Springer Science+Business Media New York 2014

Authors and Affiliations

  1. 1.Lunar and Planetary LaboratoryUniversity of ArizonaTucsonUSA
  2. 2.University of CaliforniaSanta CruzUSA