English Dictionary

greensand

/ˈɡɹiːnsænd/

noun

(geology) A greenish sandstone containing glauconite.

I found a beautiful piece of greensand on the beach.

意味（1）

(geology) A greenish sandstone containing glauconite.

The numerous beds of coarse Oolites, which in England in general occur below the lyas and greensand, are entirely wanting in Ireland: But this is the case also in the neighbourhood of Lime-Regis in Dorsetshire, which place affords an exact counterpart of the Irish series here described.