Trees getting swallowed by a deep sinkhole in Louisiana after an underground salt dome cavern collapses. Salt domes are mounds or columns of salt that have intruded upwards into overlying sediments (the process is called diapirism).

Trees getting swallowed by a deep sinkhole in Louisiana after an underground salt dome cavern collapses. Salt domes are mounds or columns of salt that have intruded upwards into overlying sediments (the process is called diapirism).