| 释义 |
psephite
psephite (ˈsiːfaɪt) n (Geological Science) any rock, such as a breccia, that consists of large fragments embedded in a finer matrix[C19: via French from Greek psēphos a pebble] psephitic adjpsephite
psephite[sē‚fīt] (geology) A sediment or sedimentary rock composed of fragments that are coarser than sand and which are set in a qualitatively and quantitatively varying matrix; equivalent to a rudite or, generally, a conglomerate. |