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・ Chattar Manzil
・ Chattar Singh Attariwalla
・ Chattaroy
・ Chattaroy, Washington
・ Chattaroy, West Virginia
・ ChattBir Zoo
・ Chatte
・ Chattel house
・ Chattel mortgage
・ Chattem
・ Chattenden
・ Chattenden and Upnor Railway
・ Chatter
・ Chatter (signals intelligence)
・ Chatter Creek Guard Station
Chatter mark
・ Chatter ring
・ Chatter Telephone
・ Chatterbot
・ Chatterbox
・ Chatterbox (1936 film)
・ Chatterbox (1943 film)
・ Chatterbox (1977 film)
・ Chatterbox (1993 film)
・ Chatterbox (band)
・ Chatterbox Falls
・ Chatterbox Records
・ Chatterer
・ Chattering cisticola
・ Chattering classes


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Chatter mark : ウィキペディア英語版
Chatter mark
::''For chatter marks made in machining, See Chatter (machining)
A chatter mark is one or, more commonly, a series of wedge shaped marks left by chipping of a bedrock surface by rock fragments carried in the base of a glacier (glacial plucking). Marks tend to be crescent-shaped and oriented at right angles to the direction of ice movement.〔Marshak, Stephen, 2009, Essentials of Geology, W. W. Norton & Company, 3rd ed. ISBN 978-0393196566〕〔
Dictionary of Geological Terms, Third Edition (1984). (American Geological Institute Publications ). Robert L. Bates and Julia A. Jackson, Editors〕
There are three different types of chatter marks. The crescentic gouge is an upstream concave that is made by the removal of a piece of rock. The crescentic fracture which is a downstream concave that is also made by the removal of rock. The lunate fracture is also a downstream concave made without the removal of rock.〔(Encyclopedia Britannica )〕
== References ==


抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
ウィキペディアで「Chatter mark」の詳細全文を読む



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