释义 |
sedimentary breccia sedimentary breccia[¦sed·ə¦men·trē ′brech·ə] (petrology) A rock composed of fragments that are larger than 2 millimeters in diameter and are the result of sedimentary processes; characterized by imperfect mechanical sorting of its materials and by a higher concentration of fragments from one local source or by a wide variety of materials mixed together in no particular pattern. Also known as sharpstone conglomerate. |