Magnetostratigraphy of Upper Paleocene through Lower Middle Eocene Strata of Northwest Europe

摘要: Ormesby Clay Formation mudstones in eastern Norfolk are the oldest upper Paleocene deposits (Chron C26r) of southern England. The base of the type Thanet Sand Formation (= start of the Thanetian Stage) is approximately 0.65 my younger (C26n). C25n is missing from the stratigraphic record across much of southern England indicating an hiatus> 0.5 my between the Ormesby Clay-Thanet Sand Formations and the Lambeth Group. However, in Central London the basal unit of the Lambeth Group, the Upnor Formation, contains a record …