Clastic Dikes
Clastic dikes form when unconsolidated sediments are forced upward into overlying sediments by the weight of the accumulating sediments. Some clastic dikes intrude into layers supposedly many millions of years younger, indicating that the underlying sediments remained unconsolidated for unexpectedly long periods of alleged time. Such features challenge the conventional geologic time scale. Published in Origins v. 4, n. 1.