M-shape

A Dictionary of Earth Sciences | 1999 | 409 words | Copyright

M-shape Characteristic shape shown in an analysis profile of nickel distribution in Widmanstätten structure in meteorites. The temperature-dependence of the diffusion of nickel within the metal phase away from kamacite (Ni—Fe alloy with 6% Ni) into taenite (Ni—Fe alloy with 30% Ni), and the faster rate of diffusion in kamacite, leads to disequilibrium nickel distribution and the M-shape.

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AILSA ALLABY and MICHAEL ALLABY. "M-shape." A Dictionary of Earth Sciences. 1999. Encyclopedia.com. 28 May. 2012 <http://www.encyclopedia.com>.

AILSA ALLABY and MICHAEL ALLABY. "M-shape." A Dictionary of Earth Sciences. 1999. Encyclopedia.com. (May 28, 2012). http://www.encyclopedia.com/doc/1O13-Mshape.html

AILSA ALLABY and MICHAEL ALLABY. "M-shape." A Dictionary of Earth Sciences. 1999. Retrieved May 28, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O13-Mshape.html

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