Definition
Linear depressions or troughs that often appear in parallel sets or families, on irregular bodies.
Synonyms
Description
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.
Morphometry
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...
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References
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Morrison, S., Hemingway, D. (2014). Grooves (Irregular Body). In: Encyclopedia of Planetary Landforms. Springer, New York, NY. https://doi.org/10.1007/978-1-4614-9213-9_183-1
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DOI: https://doi.org/10.1007/978-1-4614-9213-9_183-1
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