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.
References in periodicals archive ?
The College Hill deposit is a laminated BIF with considerable disturbed bedding having associated siltstones and flat-pebble sedimentary breccia cemented by specular hematite.