The Protomoesian microcontinent of the Balkan Peninsula — a peri-Gondwanaland piece

Peri-Gondwanan Ordovician crustal fragments in the high-grade basement of the Eastern Rhodope Massif, Bulgaria: evidence from U-Pb LA-ICP-MS zircon geochronology and geochemistry

“…To the north of the Rhodope Massif, the Sredna Gora Zone demonstrate Gondwana-derived Neoproterozoic (600-900 Ma) and Ordovician (450 Ma) inherited zircons in Late Carboniferous granitoids that built the pre-Mesozoic basement (Carrigan et al, 2005, Carrigan, Mukasa, Haydoutov, & Kolcheva, 2006. The arc-related "diabase-phyllitoid complex" (Haydoutov & Yanev, 1997) spatially linked to Cadomian MOR-type BalkanCarpathian ophiolite (Savov, Ryan, Haydoutov, & Schijf, 2001), the latter geochemically similar to the mafic rocks described herein, both identifies the Gondwana-derived basement exposed in the West Balkan unit of the Balkan terrane (Dabovski et al, 2002) facing the Moesian terrane considered of Laurussia affinity (Okay et al, 2006;Yanev et al, 2006) (see Figures 1, and 10(c)). …”

“…Limited radiometric ages existed for the counterpart pre-Paleozoic and Early Paleozoic crustal fragments in the basement terranes of the South-Eastern Europe in the Balkan region of Bulgaria (Haydoutov & Yanev, 1997). There in terranes northerly of the Rhodope Massif (Figure 1(b)), the Ordovician to Permian sedimentary sections (Yanev, 2000), together with Devonian eclogites (Gaggero, Buzzi, Haydoutov, & Cortesogno, 2008) and Carboniferous arc magmatism (Carrigan, Mukasa, Haydoutov, & Kolcheva, 2005), were discussed in terms of Gondwana-related pre-Variscan and Variscan evolution linked to the Pangea assembly.…”

Pre-Alpine evolution of a segment of the North-Gondwanan margin: Geochronological and geochemical evidence from the central Serbo-Macedonian Massif

“…Earlier studies suggest that being previously variably metamorphosed, the Lower Complex and Vlasina Unit have been amalgamated and subsequently accreted to the Moesian platform during the Variscan orogeny (Karamata and Krstić, 1996;Haydoutov and Yanev, 1997). An alternative scenario proposes that the southern extent of the SMM (i.e.…”

“…Pelitic and psammitic sediments are usually considered as protoliths of the felsic metamorphic rocks, and tholeiitic within-plate basalts and related tuffs as protoliths of the amphibolites (Milovanović, 1992;Dimitrijević, 1997). The protoliths of the Lower Complex and Vlasina Unit are described as parts of an arcrelated volcano-sedimentary series (Dimitrijević, 1967;Krstić and Karamata, 1992;Haydoutov and Yanev, 1997;Kounov et al, 2012). Although a medium amphibolitic facies metamorphism was suggested for the Lower Complex and the Ograzhden block (Milovanović, 1990;Cvetković et al, 1995;Zidarov et al, 2003a;Nenova and Zidarov, 2008;Erić et al, 2009), relict kyanite and boudins of eclogites were also reported Fig.…”

Baltica in the Cryogenian, 850–630 Ma

“…Winchester et al, 2006). The basement of its northern part (referred to as Central Dobrogea) and North Dobrogea display lower grades of Neoproterozoic metamorphism than the Moesian basement cropping out in the Carpathian belt, along strike with the southern Dobrogean segment of the Moesian Platform (Haydoutov and Yanev, 1997;Seghedi, 1998 and references therein; Crowley et al, 2000;Seghedi et al, 2000Seghedi et al, , 2003. The latter segment is thought to be derived from the Cadomian arc (e.g.…”