In chapter 13, the sedimentary rocks were divided into three major groups - the siliciclastic rocks (conglomerates conglomerate, breccias [breccia], diamictites ...), the allochem-rich clastic rocks [clastic rock] (wackestones [wackestone], lime mudstones [lime mudstone] , grainstones [grainstone]...), and the precipitate-rich rocks (limestones [limestones], diatomites, travertines [travertine]...).