Burburiyaha dhagxaanta ee horizontal wuxuu ku farsameyn karaa qalab kala duwan oo leh awood cadaadis ah oo aan ka badneyn 320MPa, oo ay ku jiraan birta birta, macdanta naxaasta, dhagax nuuradda, granite, basalt, diabase, shale, dhagax quartz iyo dhagax webiga.