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#51511 - 03/19/02 09:12 AM Re: Calcrete  
Joined: Nov 2000
Posts: 866
stales Offline
old hand
stales  Offline
old hand

Joined: Nov 2000
Posts: 866
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


#51512 - 03/19/02 04:36 PM Re: calcrete and silcrete  
Joined: Aug 2001
Posts: 2,605
Keiva Offline
Carpal Tunnel
Keiva  Offline
Carpal Tunnel

Joined: Aug 2001
Posts: 2,605
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


#51513 - 03/20/02 02:35 PM Re: calcrete and silcrete  
Joined: Nov 2000
Posts: 866
stales Offline
old hand
stales  Offline
old hand

Joined: Nov 2000
Posts: 866
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


#51514 - 03/22/02 02:57 PM Re: That picture!!!  
Joined: Jun 2001
Posts: 2,636
consuelo Offline
Carpal Tunnel
consuelo  Offline
Carpal Tunnel

Joined: Jun 2001
Posts: 2,636
Caribbean
Hope that thing is well sanded, I'd hate to think of splinter removal.


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