The Rhenohercynian passive margin of SW England: Development, inversion and extensional reactivation

Abstract

The SW England Rhenohercynian passive margin initiated with rift-related non-marine RésuméHelp from editors required here please.2

Does the Meguma Terrane Extend into SW England?

“…Franke 2000;Matte 2001). However, autochthonous pre-Devonian basement is not exposed and Shail and Leveridge (2009) noted that the basement in SW England might have originated as a separate (non-Avalonian) Gondwana-derived terrane.…”

“…The mineralogical and geochemical composition of the group's deep marine sandstone is compatible with a dominant continental magmatic arc provenance that has been correlated with the westward continuation of the Mid-German Crystalline Rise magmatic arc from mainland Europe (Floyd et al 1991). Nevertheless, it is possible that elements of SW England lower plate basement, isolated on the southern margin of the Rhenohercynian Zone as a component of the Hanseatic Terrane of Stampfli et al (2013), were subsequently accreted to the upper plate during Late Devonian convergence and also formed a source component for the Gramscatho Group (Shail and Leveridge 2009). …”

“…8) constitute a passive margin succession that most probably developed in a marginal (and later foreland) basin north of the Rheic Ocean (e.g. Shail and Leveridge 2009). The succession is overthrust to the south by the Lizard ophiolite, which likely represents the oceanic floor of this marginal basin, and is intruded by early Permian (ca.…”

“…Indeed, Avalonia has been traced eastwards from the Rhenohercynian Zone of southern Britain (e.g. Landing 2004;Shail and Leveridge 2009;Landing et al 2013a, b) and Germany (e.g. Meissner et al 1994;Cocks et al 1997;Verniers et al 2002) to the eastern Bohemian Massif in the Czech Republic (Finger et al 2000;Kalvoda et al 2008), the South Carpathians of Romania (Balintoni et al 2011), and the Pelagonian (Zlatkin et al 2014), Serbo-Macedonian (Meinhold et al 2010) and Istanbul zones (Okay et al 2008) of Greece and Turkey.…”

40 Ar/ 39 Ar phlogopite geochronology of lamprophyre dykes in Cornwall, UK: new age constraints on Early Permian post-collisional magmatism in the Rhenohercynian Zone, SW England

“…This region is generally correlated with the Rhenohercynian tectonostratigraphic zone of mainland Europe (e.g. Holder & Leveridge 1986b;Shail & Leveridge 2009;Nance et al 2010;Strachan et al 2013), which extends from the northern margin of the Bohemian massif to the South Portuguese Zone ( Fig. 1; Franke 1989).…”