释义 |
rimrock
rimrock (ˈrɪmˌrɒk) n (Geological Science) rock forming the boundaries of a sandy or gravelly alluvial depositrim•rock (ˈrɪmˌrɒk) n. rock forming the natural boundary of a plateau or other rise. [1855–60, Amer.]
rimrock
rimrock[′rim‚räk] (geology) A top layer of resistant rock on a plateau outcropping with vertical or near vertical walls. |