1. FOR THE ADDITIONAL INFORMATION: MOUSE-OVER AND CLICK ON SCREEN

2. 1. Introduction: Gondwana in the Ediacaran
Eastern Mediterranean W.
Africa E.
Amazonia
(Linnemann et al., 2007)
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3. 1. Introduction: Caledonian paleo-restorations
Nance et al., 2010
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4. 1. Introduction: Terrane map of Europe
Oczlon, 2006
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5. 1. Introduction: Medial Crystalline Belt
Variscan (300 Ma) and Cryogenian (700 Ma) granites
Peri-Amazonian provenance
Pelagonian Pl
N. African provenance
Variscan granites
Cycladic
Cadomian (550 Ma) granites
No Variscan overprint
N. African provenance Cy
“Median Aegean Crystalline Belt” by Dürr et al. (1978) “Medial tectono-metamorphic belt of Pelagonian-Cyclades-Menderes” by Papanikolaou (1989)
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6. 1. Introduction: Pelagonian basement outcrops
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7. 1. Proto-Pelagonian succession – U-PbGa
Zlatkin et al, 2014
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8. 1. Proto-Pelagonian succession – provenance
Santos et al., 2000
Colombo et al., 1999
Zlatkin et al, 2014
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9. 2. Methods: U-Pb-Hf isotopic signatureDM
Hf-TDM
150um
CHUR
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10. 2. Methods: U-Pb in HUJI Agilent-7500 quadropole ICP-MS
New Wave UP-193 nm Excimer laser system
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11. 2. Methods: U-Pb in HUJI Plesovice: 337 Ma 91500: 1064 Ma
FC-1: 1100 Ma
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12. 2. Sampling: Schematic geological maps
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13. 3. The refined Pelagonian rock section in each outcrop
2. Sampling: stratigraphic positions of the collected samples in each outcrop
3. The refined Pelagonian rock section in each outcrop
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14. 4. Isotopic results: No Caledonian zircon record
No Paleozoic (Middle Cambrian to Permian) strata detected in the Pelagonian rock section
All PLB samples <1000 Ma
All PLB samples; n=654
450
No Caledonian magmatism in Pelagonian
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15. 4. Isotopic results: Variscan granites
Variscan granites were detected in all outcrops
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16. 4. Isotopic results: Avalonian succession
PLB10 – Mica schist covering the basement gneiss (700 Ma); PLB14 – schistose country rock of a Variscan pluton; PLB17 – amphibolitic country rock of a Variscan pluton.
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17. 4. Isotopic results: Avalonian granites (main arc)
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18. 4. Isotopic results: Proto-Pelagonian succession
Proto-Pelagonian rock unit were detected also in the northern massifs (except of the Voras)
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19. 5. Correlations with Avalonia: West Avalonia
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20. 5. Correlations with Avalonia: Gamble Brook Fm.
Westboro & Gamble Brook Fm.
Proto-Pelagonian rock unit Ma Ma
Early Neoproterozoic, West Avalonia
Early Neoproterozoic, Greek Pelagonia
Barr et al., 2003; Henderson et al., 2015
Zlatkin et al., 2014
Cryogenian ( Ma) and Ediacaran ( Ma) granites with TDM= Ga intrude the metasedimentary basement in both localities
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21. 5. Correlations with Avalonia: why not N. Africa?
N. African isotopic signature
Proto-Pelagonian rock unit
Be’eri-Shlevin et al., 2014
Recent beach sand, Israel Ma Ma
Early Paleozoic, Anti Atlas
This study, Greek Pelagonia
Avigad et al., 2012
Zlatkin et al., 2014
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22. 5. Correlations with Avalonia: Avalonian signature
Avalonian zircon record (a compilation)
Pollock et al., 2009
Willner et al., 2013
Murphy et al., 2004
Malignant cove
“Avalonian” succession
Proto-Pelagonian succession Ma
Gartner et al., 2015 (from Barr et al., 2012)
Early Paleozoic, West Avalonia
Avalonian sediments ( Ma) >>
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23. 5. Evolution of Avalonia: interpretation
Before 750 Ma: sedimentation in a continental basin on the Rodinian passive margin, adjacent to the western part of the Amazonian craton;
Ma: Early arc - initiation of subductional settings on the active margin;
Ma: sedimentation in the continental arc basin;
Ma: Main arc stage - back arc opening and rifting of Avalonia
Ma: Drifting of Avalonia as a insular microcontinent
570 Ma: Ceasing of the Avalonian magmatic activity and tectonic slivering
530 Ma: Docking to NW Africa (and Cadomia)
Ma: N. African stop-over and strike slip motions
490 Ma: Rheic opening, drifting of the Avalonia away
Ma: Caledonian orogeny; docking to Laurussia
300 Ma: Variscan orogeny
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24. 6. Magmatic sources of 450-400 Ma in EMCy EC IC
SMM Pl Sa IZ Da EH SG St SD ND CD
460
400
400
IZ – Istanbul/Zonguldak (Okay et al., 2008); Sa – Sakarya (Aysal et al., 2012; Sunal, 2012); SMM – Serbo-Macedonian Massif (Himmerkus et al., 2009; Meinhold et al., 2010); EC and IC - Eastern and Inner Carpathians (Oczlon et al., 2007 and references therein; Balintoni et al., 2010, 2013); Cy – major detrital zircon peak in post-Variscan strata (Keay and Lister, 2002)
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25. 6. Provenance of pre-450-400 Ma-aged beltCy EC IC
SMM Pl Sa IZ Da EH SG St SD ND CD
Avalonian: IZ – Istanbul/Zonguldak (Chen et al., 2002; Ustaömer A. et al., 2009);
Cadomian: Sa – Sakarya (Central and Eastern Sakarya: Ustaömer A. et al., 2012; Ustaömer T. et al., 2013; Western Cakarya on Biga? - Tunc et al., 2013); SMM – Serbo-Macedonian Massif (Meinhold et al., 2010); EC and IC - Eastern and Inner Carpathians (Balintoni et al., 2010, 2013); Cy – (Keay and Lister, 2002)
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