11. Abelsonite is a secondary mineral that formed in fractures, vugs, and bedding planes of oil shale. 12. Fossils of ammonites can be found in the formation, often embedded vertically in the bedding plane . 13. It survives on the bedding planes and is exposed in several places on the north elevation. 14. "It is thought that Qaqa Mach'ay is an abandoned glacial sink formed on a geologically-favourable bedding plane . 15. The terminus of the cave is a low bedding plane which eventually becomes too low to progress. 16. Horizontal drilling techniques in which a well is drilled horizontally along bedding planes , rather than vertically through them. 17. Bo Nau, a horizontal cave containing old stalactite deposits, cuts across the 25o dip of the bedding plane . 18. These consolidated rocks yield water primarily from bedding planes , fractures, joints, and faults, rather than from intergranular pores. 19. At the Point the bedding planes of the limestones contain large groups of the oyster " Liostrea ". 20. Common planar surfaces of failure include joints or bedding planes , especially where a permeable layer overrides an impermeable surface.
