Pre-Variscan tectonic setting of the south margin of Armorica: Insights from detrital zircon ages distribution and Hf isotopic composition of the St-Georges-sur-Loire Unit (S. Armorican Massif, France)

Abstract

Pre-Variscan tectonic setting of the south margin of Armorica: Insights from detrital zircon ages distribution and Hf isotopic composition of the S t-Georgessur-Loire Unit (S. Armorican Massif, France

Detrital zircon U Pb age distributions and Hf isotopic constraints of the Ailaoshan-Song Ma Suture Zone and their paleogeographic implications for the Eastern Paleo-Tethys evolution

“…Martínez Catalán et al, 2008, 2009 andreferences J o u r n a l P r e -p r o o f Journal Pre-proof therein), the Bohemian massif (e.g. Henderson et al, 2016;Linnemann et al, 2004Linnemann et al, , 2007, Amorican (Lin et al, 2019), and Variscan Corsica (Avigad et al, 2018). As a syntectonic sedimentary formation, resulting of erosion, transportation and deposition in active settings, turbiditic matrix of the ophiolitic mélange records much information, such as uplift and tectonic phases that were erased by the late events of the corresponding orogenic belt (Henderson et al, 2018).…”

Detrital Zircon U‐Pb Age Distribution and Hf Isotopic Constraints From the Terrigenous Sediments of the Song Chay Suture Zone (NE Vietnam) and Their Paleogeographic Implications on the Eastern Paleo‐Tethys Evolution

“…Detrital minerals (e.g., zircon, rutile, and mica) are key tracers for quantitative and qualitative sedimentary provenance analyses for the determination of the source rock type, metamorphic grade and the crystallization or cooling ages of the provenance region (e.g., Cawood et al, 2012;Chu et al, 2016;Dickinson & Gehrels, 2009;Fedo et al, 2003;Lin et al, 2019). Detrital zircon age distribution is a useful tool that provides information on the provenance of terrigenous materials involved in the edification of an orogenic belt.…”