出典:Wiktionary
出典:『Wiktionary』 (2024/07/15 23:17 UTC 版)
siltstone (countable and uncountable, plural siltstones)
出典:Wikipedia
出典:『Wikipedia』 (2011/05/04 18:30 UTC 版)
Siltstone is a sedimentary rock which has a grain size in the silt range, finer than sandstone and coarser than claystones.