Abstract West and East Ganderia in the northern Appalachians and Caledonides,
respectively, represent a Gondwanan superterrane situated along the Tornquist margin of …

Abstract The Iapetus Ocean was the first ancient ocean to be identified following the
development of plate tectonics; its history has been fundamental in relating orogenesis and …

Abstract Distinctive uppermost Ediacaran–Ordovician rocks (Avalonian overstep sequence)
were key in definition of Avalonia, which comprises large areas of the NE Appalachians and …

The Neoproterozoic tectonomagmatic evolution of West Avalonia comprises four major
events. Tectonism started with the formation of a Tonian passive margin on a Baltica-derived …

Abstract The Ordovician of Scandinavia (ie Denmark, Norway and Sweden) has been
investigated for over two centuries and, through time, various chronostratigraphic schemes …

The supercontinent Pangea formed by the subduction of the Iapetus and Rheic oceans
between Gondwana, Laurentia, and Baltica during mid-to-late Paleozoic times. However …

The deformed margin of the Laurentian craton, preserved within the Appalachian-
Caledonide Orogen, is one of Earth's best studied ancient continental margins. Within the …

In the original Wilson cycle, the northern Appalachian–Caledonide orogen resulted from the
collision of two continental masses separated by a single ocean. One of these corresponds …

Abstract The late Neoproterozoic–Cambrian interval is characterized by global-scale
orogenesis, rapid continental growth and profound changes in Earth systems. Orogenic …

Rock successions in Britain and Ireland, and more especially those in Wales, were
instrumental in the founding and naming of the Ordovician System, and the Anglo-Welsh …