2015-05-12 14:49 GMT+02:00 pmailkeey . <[email protected]>: > Now, we can start arguing about the definition of 'small' :)) - so I'll > start, in this context, with any stone smaller than a curling stone > <http://en.wikipedia.org/wiki/Curling#Curling_stone> ! > > large ones <http://en.wikipedia.org/wiki/Bowder_Stone> can be several > feet in diameter and a couple of kT. >
there are definitions for the sizes: ISO 14688-1 which is basically DIN 4022. in the US: http://upload.wikimedia.org/wikipedia/commons/e/e2/Wentworth-Grain-Size-Chart.pdf the basic sequence clay, silt, sand, pebbles, cobbles, boulders is the same, there's nothing to argue about. Cheers, Martin
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