 It took three hours for the boy to be rescued from the pit.The geological process that is producing the never before studied anomalies appears to be related to the burial and decomposition of fungus-ridden black oak trees.In 2016, scientists concluded that such anomalies in the moving or living dune are caused by the burial of trees that eventually decay leaving a hollowed out shaft beneath unsteady ground, named a "dune decomposition chimney."