Rippability
From Infogalactic: the planetary knowledge core
The rippability of an earth ( rock) material is a measure of its ability to be excavated with conventional excavation equipment.[1] A material may be classified as rippable, marginally rippable or non-rippable. The rippability of a material is often evaluated by an engineering geologist and/or geophysicist utilizing the seismic refraction equipment (see refraction),.[2][3] Rippability studies can involve the performance of seismic refraction traverses, the drilling of borings with an air percussion drill rig, the excavation of test trenches with a bulldozer with rippers or backhoe, and by geologic mapping.
References
<templatestyles src="Asbox/styles.css"></templatestyles>