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#51511 - 03/19/02 04:12 AM Re: Calcrete
stales Offline
old hand

Registered: 11/13/00
Posts: 866
Loc: Perth, Western Australia
You got it - I think. Could also be calcium + accreted/accretion.

Same goes for "silcrete" (silica + concrete/accreted/accretion) and "ferricrete" - have a guess!

stales


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#51512 - 03/19/02 11:36 AM Re: calcrete and silcrete
Keiva Offline
Carpal Tunnel

Registered: 08/04/01
Posts: 2605
per Academic Press Dictionary of Science and Technology, no concrete is involved:

calcrete Geology. 1. a conglomerate of surface sand and gravel cemented into a hard mass by calcium carbonate. 2. in a semiarid climate, a hard crust containing calcium carbonate formed on the surface of a soil.
silcrete Geology. a conglomerate of surficial sand and gravel cemented together by silica.

http://www.harcourt.com/dictionary


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#51513 - 03/20/02 09:35 AM Re: calcrete and silcrete
stales Offline
old hand

Registered: 11/13/00
Posts: 866
Loc: Perth, Western Australia
Keiva - "concretion"(n.) is a geological term - a subspherical lump of grains that have been cemented together by chemical means. Thus you are correct in saying that it has nothing to do with concrete, but concretion is in there somewhere....

stales


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#51514 - 03/22/02 09:57 AM Re: That picture!!!
consuelo Offline
Carpal Tunnel

Registered: 06/11/01
Posts: 2636
Loc: Caribbean
Hope that thing is well sanded, I'd hate to think of splinter removal.


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