Reply to the discussion of the reply by R.L. Romer and U. Kroner on “Geochemical signature of Ordovician Mn-rich sedimentary rocks on the Avalonian shelf” ¹Appears in the Canadian Journal of Earth Sciences, 49(11): 1372–1377 [doi:10.1139/e2012-049].

Abstract

Romer and Kroner (2012) stated “the core of the Harlech Dome (i) in part is made up of Ordovician deposits and (ii) contains tectonic repetitions”. In their comment, Schofield et al. (this issue) distort this statement and state that (i) we claim the entire sedimentary sequence of the Harlech Dome is Ordovician and (ii) we misinterpreted their zircon data. We disagree. In our reply, we demonstrate that the argumentation of Schofield et al. (this issue) is driven by circular argumentation and that their use and interpretation of U–Pb zircon data is inadequate.