A disconformity is an unconformity between parallel layers of sedimentary rocks which represents a period of erosion or non-deposition. Disconformities are marked by features of subaerial erosion.This type of erosion can leave channels and paleosols in the rock record. blended unconformity is a type of disconformity or nonconformity with no distinct separation plane or contact, sometimes consisting of soils, paleosols, or beds of pebbles derived from the underlying rock.
The current Cabinet includes the Vice President and the heads of 15 executive departments, listed here according to their order of succession to the Presidency.
The Secretary of State is the highest-ranking cabinet official; this Secretary is fourth in succession to the Presidency. Cabinet officers are titular heads of the 15 permanent executive agencies of the government. Cabinet rank members include the Vice President as well as the White House Chief of Staff, Environmental Protection Agency, Office of Management and Budget, Office of National Drug Control Policy and U.S. Trade Representative.