Astronomy: General

A Dictionary of Earth Sciences A Dictionary of Astronomy The Columbia Encyclopedia,... Further reading

rille

A Dictionary of Earth Sciences | 1999 | | Copyright

rille (rima) A small valley on the Moon. Three types are recognized. (a) Straight rilles are typically 1–5 km wide and hundreds of kilometres long, unrelated to surficial topography, analogous to terrestrial fault grabens. (b) Curved or arcuate rilles are variants of straight rilles, with similar dimensions, and form concentrically to major ringed basins (e.g. Mare Humorum). (c) Sinuous and meandering rilles, formed by thermal erosion by flowing lava. Hadley Rille, 1.2 km wide, 270 m deep, and 135 km long, visited by Apollo 15, is the type example.

Cite this article
Pick a style below, and copy the text for your bibliography.

MLA
Chicago
APA

AILSA ALLABY and MICHAEL ALLABY. "rille." A Dictionary of Earth Sciences. 1999. Encyclopedia.com. 31 May. 2012 <http://www.encyclopedia.com>.

AILSA ALLABY and MICHAEL ALLABY. "rille." A Dictionary of Earth Sciences. 1999. Encyclopedia.com. (May 31, 2012). http://www.encyclopedia.com/doc/1O13-rille.html

AILSA ALLABY and MICHAEL ALLABY. "rille." A Dictionary of Earth Sciences. 1999. Retrieved May 31, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O13-rille.html

Learn more about citation styles

rille

A Dictionary of Astronomy | 1997 | Copyright

rille A well-defined, long, narrow valley on the Moon with steep walls and roughly parallel sides. There are three main types: straight (or linear) rilles which appear to be graben, where the surface has dropped between two parallel faults; arcuate rilles, which are similar but curved in plan view, and often concentric with a circular mare basin; and sinuous rilles, which are different in origin. See also rima.

Cite this article
Pick a style below, and copy the text for your bibliography.

MLA
Chicago
APA

"rille." A Dictionary of Astronomy. 1997. Encyclopedia.com. 31 May. 2012 <http://www.encyclopedia.com>.

"rille." A Dictionary of Astronomy. 1997. Encyclopedia.com. (May 31, 2012). http://www.encyclopedia.com/doc/1O80-rille.html

"rille." A Dictionary of Astronomy. 1997. Retrieved May 31, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O80-rille.html

Learn more about citation styles

rille

The Columbia Encyclopedia, 6th ed. | 2011 | Copyright

rille : see moon .

Cite this article
Pick a style below, and copy the text for your bibliography.

MLA
Chicago
APA

"rille." The Columbia Encyclopedia, 6th ed.. 2011. Encyclopedia.com. 31 May. 2012 <http://www.encyclopedia.com>.

"rille." The Columbia Encyclopedia, 6th ed.. 2011. Encyclopedia.com. (May 31, 2012). http://www.encyclopedia.com/doc/1E1-X-rille.html

"rille." The Columbia Encyclopedia, 6th ed.. 2011. Retrieved May 31, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1E1-X-rille.html

Learn more about citation styles

Free newspaper and magazine articles

	Mothers, daughters and education: struggles between conformity and resistance Magazine article from: Canadian Journal of Education; 1/1/1998
	Accenture settles false claims suit for $64 million.(Legal) Magazine article from: Arkansas Business; 9/19/2011
	FNH USA Adds Options, Promotes Dealer Incentives Magazine article from: Shooting Industry; 7/1/2010