- Jarmo KorteniemiAffiliated withEarth and Space Physics, Department of Physics, University of Oulu
- , Teemu ÖhmanAffiliated withArctic Planetary Science Institute Email author
An impact crater having a polygonal rim shape in plan view.
A polygonal crater is an impact crater which in plan view is not circular, elliptical, or irregular, but more closely resembles a regular polygon with straight rim segments and clearly discernible angles between them. Typically only a part of the rim circumference is formed by straight segments. However, no rigorous definition of a polygonal crater exists.
Any size polygonal craters, up to basins, can be found (Kopal 1966; Öhman 2009, Singer and McKinnon 2011), but the majority are found slightly above (1–5×) the transition diameter from simple to complex craters (Pohn and Offield 1970; Öhman 2009). Most often polygonal craters display a partial hexagonal (six-sided) form, often with two to four distinctly straight rim segments (Fig. 1). Polygonal craters may be roughly square-shaped (e.g., Meteor Crater in Arizona) (Kumar and Kring 2008; Poelc ...
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Date: 2014 (Latest)History
- 2014 (Latest)
- Polygonal Crater
- Reference Work Title
- Encyclopedia of Planetary Landforms
- pp 1-5
- Online ISBN
- Springer New York
- Copyright Holder
- Springer Science+Business Media New York
- Industry Sectors
- eBook Packages
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