what types of unconformities are represented by the great unconformity
The notion of the general incompleteness of the geologic record is an important one to keep in mind while interpreting Earth history from the rock record. Types of Unconformities. There are three principal types of unconformity, namely, the disconformity, the nonconformity, and the angular unconformity [Fig. 1]. The disconformity (alternately referred to as the paraconformity) is an erosional surface which exists between and parallel to layers of parallel strata.