Abstract
New detailed geological/structural mapping coupled with microstructural investigations and amphibole chemistry analyses are used to elucidate the enigmatic tectonic evolution of the Makrotantalo nappe on northern Andros (Aegean region). On the basis of the new geological map, we re-evaluate the structural position of samples with previously published metamorphic ages to show that the Makrotantalo nappe has been affected by the early Eocene high-pressure (HP) metamorphism. Therefore, the Makrotantalo nappe is an integral part of the Cycladic Blueschist Unit (CBU). The early, main ductile deformation phase recognized in the mapped area, is associated with the emplacement of the Makrotantalo nappe over the North Cyclades nappe at deep subduction levels during early Eocene. The subsequent deformation phase occurred at the middle Eocene–Oligocene synchronous with the decompression of blueschist rocks from the stability field of glaucophane to that of actinolite. During this phase, the nappe pile was folded by map-scale folds, which were locally transposed by ductile shear zones. These shear zones were related with NE-directed oblique thrusting and, locally, either restacked the nappe pile or reworked the early nappe contact. Our results in combination with previous studies in the northern Cyclades show that the top-to-the-NE shearing was dominant at a large part of the CBU during exhumation. Opposite, SW-directed shearing was restricted at the upper structural levels of the CBU. We suggest that the observed spatial variation in shear sense is compatible with NE- rather than SW-directed ductile extrusion of the CBU.
Similar content being viewed by others
References
Agostini S, Doglioni C, Innocenti F, Manetti P, Tonarini S (2010) On the geodynamics of the Aegean rift. Tectonophysics 488:7–21
Altherr R, Schliestedt M, Okrusch M, Seidel E, Kreuzer H, Harre W, Lenz H, Wendt I, Wagner GA (1979) Geochronology of high-pressure rocks on Sifnos (Cyclades, Greece). Contrib Mineral Petrol 70:245–255
Altherr R, Kreuzer H, Wendt I, Lenz H, Wendt I, Harre W, Dürr S (1994) Further evidence for a late Cretaceous low-pressure high-temperature terrane in the Cyclades, Greece. Chem Erde 54:319–328
Altunkaynak S, Dilek Y (2006) Timing and nature of postcollisional volcanism in western Anatolia and geodynamic implications. In: Dilek Y, Pavlides S (eds) Postcollisional tectonics and magmatism in the Mediterranean region and Asia. Geol Soc Am Spec Pap 409:321–351
Aravadinou E, Xypolias P (2017) Evolution of a passive crustal-scale detachment (Syros, Aegean region): Insights from structural and petrofabric analyses in the hanging-wall. J Struct Geol 103:57–74
Aravadinou E, Xypolias P, Chatzaras V, Iliopoulos I, Gerogiannis N (2016) Ductile nappe stacking and refolding in the Cycladic Blueschist Unit: insights from Sifnos Island (south Aegean Sea). Int J Earth Sci 105:2075–2096
Arslan A, Güngör T, Erdoğan B, Passchier CW (2013) Tectonic transport directions of the Lycian nappes in southwest Turkey constrained by kinematic indicators. J Asian Earth Sci 64:198–209
Ashley KT, Caddick MJ, Steele-MacInnis MJ, Bodnar RJ, Dragovic B (2014) Geothermobarometric history of subduction recorded by quartz inclusions in garnet. Geochem Geophys Geosyst 15:350–360
Avigad D, Garfunkel Z (1991) Uplift and exhumation of high-pressure metamorphic terrains: the example of the Cycladic blueschist belt (Aegean Sea). Tectonophysics 188:357–372
Avigad D, Garfunkel Z, Jolivet L, Azañon JM (1997) Back arc extension and denudation of Mediterranean eclogites. Tectonics 16:924–941
Bijwaard H, Spakman W, Engdahl ER (1998) Closing the gap between regional and global travel time tomography. J Geophys Res 103:30055–30078
Black KN, Catlos EJ, Oyman T, Demirbilek M (2013) Timing Aegean extension: evidence from in situ U–Pb geochronology and cathodoluminescence imaging of granitoids from NW Turkey. Lithos 180–181:92–108
Blake MC, Bonneau M, Geyssant J, Kienast JR, Lepvrier C, Maluski H, Papanikolaou D (1981) A geologic reconnaissance of the Cycladic blueschist belt, Greece. Geol Soc Am Bull 92:247–254
Bonneau M (1982) Evolution géodynamique de l’arc égéen depuis le Jurassique Supérieur jusqu’ au Miocène. Bulletin de la Societé Géologique de France 7:229–242
Bonneau M (1984) Correlation of the Hellenide nappes in the south-east Aegean and their tectonic reconstruction. Geol Soc Lond Spec Publ 1:517–527
Bröcker M, Franz L (2006) Dating metamorphism and tectonic juxtaposition on Andros Island (Cyclades, Greece): results of a Rb–Sr study. Geol Mag 143:609–620
Bröcker M, Pidgeon RT (2007) Protolith ages of meta-igneous and metatuffaceous rocks from the cycladic Blueschist Unit, Greece: results of a Reconnaissance U-Pb Zircon study. J Geol 115:83–98
Bröcker M, Kreuzer H, Matthews A, Okrusch M (1993) 40Ar-39Ar and oxygen isotope studies of polymetamorphism from Tinos Island, Cycladic blueschist belt, Greece. J Metamorph Geol 11:223–240
Bröcker M, Biebling D, Hacker B, Gans P (2004) High-Si phengite records the time of greenschist facies overprinting: implications for models suggesting megadetachments in the Aegean Sea. J Metamorph Geol 22:427–442
Bröcker M, Baldwin S, Arkudas R (2013) The geological significance of 40Ar/39Ar and Rb-Sr white mica ages from Syros and Sifnos, Greece: a record of continuous (re)crystallization during exhumation? J Metamorph Geol 31:629–646
Bröcker M, Huyskens M, Berndt J (2016) U-Pb dating of detrital zircons from Andros, Greece: constraints for the time of sediment accumulation in the northern part of the cycladic blueschist belt. Geol J 51:354–367
Brown EH (1977) The crossite content of ca-amphibole as a guide to pressure of metamorphism. J Petrol 18:53–72
Bulle F, Bröcker M, Gärtner C, Keasling A (2010) Geochemistry and geochronology of HP mélanges from Tinos and Andros, cycladic blueschist belt. Greece Lithos 117:61–81
Chatzaras V, Xypolias P, Doutsos T (2006) Exhumation of high-pressure rocks under continuous compression: a working hypothesis for the southern Hellenides (central Crete, Greece). Geol Mag 143:859–876
Chatzaras V, Xypolias P, Kokkalas S, Koukouvelas I (2011) Oligocene-Miocene thrusting in central Aegean: insights from the Cycladic island of Amorgos. Geol J 46:619–636
Chatzaras V, Xypolias P, Kokkalas S, Koukouvelas I (2013a) Tectonic evolution of a crustal-scale oblique ramp, Hellenides thrust belt, Greece. J Struc Geol 57:16–37
Chatzaras V, Dörr W, Finger F, Xypolias P, Zulauf G (2013b) U-Pb single zircon ages and geochemistry of metagranitoid rocks in the Cycladic Blueschists (Evia Island): implications for the Triassic tectonic setting of Greece. Tectonophysics 595–596:125–139
Cliff RA, Bond CE, Butler RWH, Dixon JE (2017) Geochronological challenges posed by continuously developing tectonometamorphic systems: insights from Rb–Sr mica ages from the Cycladic Blueschist Belt, Syros (Greece). J Metamorph Geol 35:197–211
Dilek Y, Altunkaynak S (2009) Geochemical and temporal evolution of Cenozoic magmatism in western Turkey: mantle response to collision, slab break-off, and lithospheric tearing in an orogenic belt. In: Van Hinsbergen DJJ, Edwards MA, Govers R (eds) Collision and collapse at the Africa–Arabia–Eurasia Subduction Zone. Geol Soc Lond Spec Publ 311:213–233
Doglioni C, Panza G (2015) Polarized Plate Tectonics. Adv Geophys. https://doi.org/10.1016/bs.agph.2014.12.001
Doglioni C, Carminati E, Cuffaro M, Scrocca D (2007) Subduction kinematics and dynamic constraints. Earth Sci Rev 83:125–175
Doutsos T, Piper G, Boronkay K, Koukouvelas I (1993) Kinematics of the Central Hellenides. Tectonics 12:936–953
Doutsos T, Koukouvelas I, Zelilidas A, Kontopoulos N (1994) Intracontinental wedging and post-orogenic collapse in the Mesohellenic Trough. Geol Rundsch 83:257–275
Dragovic B, Baxter EF, Caddick MJ (2015) Pulsed dehydration and garnet growth during subduction revealed by zoned garnet geochronology and thermodynamic modeling, Sifnos, Greece. Earth Planet Sci Lett 413:111–122
Dürr S (1986) Das Attisch–Kykladische Kristallin. In: Jacobshagen V (ed) Geologie von Griechenland. Bornträger, Berlin, pp 116–148
ElGabry MN, Panza GF, Badawy AA, Korrat IM (2013) Imaging a relic of complex tectonics: the lithosphere asthenosphere structure in the Eastern Mediterranean. Terra Nova 25:102–109
Faccenna C, Jolivet L, Piromallo C, Morelli A (2003) Subduction and the depth of convection of the Mediterranean mantle. J Geophys Res 108(B2):2099. https://doi.org/10.1029/2001JB001690
Faleiros FM, Moraes R, Pavan M, Campanha GAC (2016) A new empirical calibration of the quartz c-axis fabric opening-angle deformation thermometer. Tectonophysics 671:173–182
Froitzheim N, Jahn-Awe S, Frei D, Wainwright AN, Maas R, Georgiev N, Nagel TJ, Pleuger J (2014) Age and composition of metaophiolite from the Rhodope Middle Allochthon (Satovcha, Bulgaria): a test for the maximum-allochthony hypothesis of the Hellenides. Tectonics 33:1477–1500
Fytikas M, Innocenti F, Manetti P, Mazuoli R, Peccerillo A, Villari L (1984) Tertiary to Quaternary evolution of volcanism in the Aegean region. In Dixon JE, Robertson AHF (eds) The Geological Evolution of the Eastern Mediterranean. Geol Soc Lond Spec Publ 17:687–700
Gautier P, Brun JP (1994) Crustal-scale geometry and kinematics of late-orogenic extension in the central Aegean (Cyclades and Evvia Island). Tectonophysics 238:399–424
Gerogiannis N, Xypolias P (2017) Retroward extrusion of high-pressure rocks: An example from the Hellenides (Pelion Blueschist Nappe, NW Aegean). Terra Nova 29:372–381
Grasemann B, Schneider DA, Stockli DF, Iglseder C (2012) Miocene bivergent crustal extension in the Aegean: Evidence from the western Cyclades (Greece). Lithosphere 4:23–39
Grasemann B, Huet B, Schneider DA, Rice AHN, Lemonnier N, Tschegg C (2018) Miocene postorogenic extension of the Eocene synorogenic imbricated Hellenic subduction channel: new constraints from Milos (Cyclades, Greece). Geol Soc Am Bull 130:238–262
Hannula KA, Miller EL, Dumitru TA, Lee J, Rubin CM (1995) Structural and metamorphic relations in the southwest Seward Peninsula, Alaska: crustal extension and the unroofing of blueschists. Geol Soc Am Bull 107:536–553
Hetzel R, Echtler HP, Seifert W, Schulte BA, Ivanov KS (1998a) Subduction- and exhumation-related fabrics in the Paleozoic high-pressure - low-temperature Maksyutov Complex, Antingan area, southern Urals, Russia. Geol Soc Am Bull 110:916–930
Hetzel R, Romer R, Candan O, Passchier C (1998b) Geology of the Bozdag area, central Menderes massif, SW Turkey: Pan-African basement and Alpine deformation. Geol Rundsch 87:394–406
Huet B, Labrousse L, Jolivet L (2009) Thrust or detachment? Exhumation processes in the Aegean: insight from a field study on Ios (Cyclades Greece). Tectonics 28:1–27
Huet B, Labrousse L, Monié P, Malvoisin B, Jolivet L (2015) Coupled phengite 40Ar-39Ar geochronology and thermobarometry: P-T-t evolution of Andros Island (Cyclades, Greece). Geol Mag 152:711–727
Huyskens MH, Bröcker M (2014) The status of the Makrotantalon Unit (Andros, Greece) within the structural framework of the Attic-Cycladic Crystalline Belt. Geol Mag 151:430–446
Iglseder C, Grasemann B, Rice AHN, Petrakakis K, Schneider DA (2011) Miocene S-directed low-angle normal fault evolution on Kea Island (West Cycladic Detachment System, Greece). Tectonics 30:TC4013. https://doi.org/10.1029/2010TC002802
Inger S, Ramsbotham W (1997) Syn-convergent exhumation implied by progressive deformation and metamorphism in the Valle dell’Orco transect, NW Italian Alps. J Geol Soc Lond 154:667–677
Innocenti F, Agostini S, Doglioni C, Manetti P, Tonarini S (2010) Geodynamic evolution of the Aegean: constraints from the Plio-Pleistocene volcanism of the Volos–Evia area. J Geol Soc Lond 167:475–489
JacobshagenV DS, Kockel F, Kopp KO, Kowalczyk G (1978) Structure and geodynamic evolution of the Aegean Region. In: Closs H, Roeder D, Schmidt K (eds) Alps, Apennines, Hellenides. Schweizerbart, Stuttgart, pp 537–564
Jayko AS, Blake MC (1989) Deformation of the Eastern Franciscan Belt, northern California. J Struct Geol 11:375–390
Jolivet L, Brun ΖJP (2010) Cenozoic geodynamic evolution of the Aegean. Int J Earth Sci 99:109–138
Jolivet L, Faccenna C, Goffé B, Burov E, Agard P (2003) Subduction tectonics and exhumation of high-pressure metamorphic rocks in the Mediterranean orogens. Am J Sci 303:353–409
Jolivet L, Lecomte E, Huet B, Denèle Y, Lacombe O, Labrousse L, Le Pourhiet L, Mehl C (2010) The North cycladic detachment system. Earth Planet Sci Lett 289:87–104
Jolivet L, Menant A, Clerc C, Sternai P, Bellahsen N, Leroy S, Pik R, Stab M, Faccenna C, Gorini G (2018) Extensional crustal tectonics and crust-mantle coupling, a view from the geological record. Earth Sci Rev 185:1187–1209
Kárason H, van der Hilst RD (2000) Constraints on mantle convection from mantle tomography. In: Richards MA et al (eds) The history and dynamics of global plate motions. Am Geophys Union, Geophysical Monograph 121:277–288
Katzir Y, Avigad D, Matthews A, Garfunkel Z, Evans BW (2000) Origin, HP/LT metamorphism and cooling of ophiolitic mélanges in southern Evia (NW Cyclades), Greece. J Metamorph Geol 18:699–718
Keiter M, Piepjohn K, Ballhaus C, Lagos M, Bode M (2004) Structural development of high-pressure metamorphic rocks on Syros island (Cyclades, Greece). J Struct Geol 26:1433–1445
Keiter M, Tomaschek F, Ballhaus C (2008) The structural evolution of Kythnos Island (Cyclades, Greece)—a reconnaissance. Z Dtsch Ges Geowiss 159:513–520
Keiter M, Ballhaus C, Tomaschek F (2011) A new geological map of the island of Syros (Aegean Sea, Greece): Implications for lithostratigraphy and structural history of the Cycladic Blueschist Unit. Geol Soc Am Spec Pap 481:1–43
Kokkalas S, Xypolias P, Koukouvelas I, Doutsos T (2006) Postcollisional contractional and extensional deformation in the Aegean region. In: Dilek Y, Pavlides S (eds) Postcollisional Tectonics and Magmatism in the Mediterranean Region and Asia. Geol Soc Am Spec Pap 409:97–123
Kruhl JH (1998) Reply: prism- and basal-plane parallel subgrain boundaries in quartz: a microstructural geothermobarometer. J Metamorph Geol 16:142–146
Lagos M, Scherer EE, Tomaschek F (2007) High precision Lu-Hf geochronology of Eocene eclogite-facies rocks from Syros, Cyclades, Greece. Chem Geol 243:16–35
Laurent V, Jolivet L, Roche V, Augier R, Scaillet S, Cardello GL (2016) Strain localization in a fossilized subduction channel: insights from the Cycladic Blueschist Unit (Syros, Greece). Tectonophysics 672–673:150–169
Laurent V, Huet B, Labrousse L, Jolivet L, Monié P, Augier R (2017) Extraneous argon in high-pressure metamorphic rocks: Distribution, origin and transport in the Cycladic Blueschist Unit (Greece). Lithos 272–273:315–335
Law RD (2014) Deformation thermometry based on quartz c-axis fabrics and recrystallization microstructures: a review. J Struct Geol 66:129–161
Law RD, Knipe RJ, Dayan H (1984) Strain path partitioning within thrust sheets: microstructural and petrofabric evidence from the Moine Thrust zone at Loch Eriboll, northwest Scotland. J Struct Geol 6:477–497
Le Pichon X, Angelier J (1979) The Hellenic Arc and Trench system: a key to the Neotectonic evolution of the eastern Mediterranean area. Tectonophysics 60:1–42
Leake BE, Woolley AR, Arps CES et al (1997) Nomenclature of amphiboles: report of the Subcommittee on Amphiboles of the International Mineralogical Association, commission on new minerals and mineral names. Can Mineral 35:219–246
Lips ALW, White SH, Wijbrans JR (1998) 40Ar/39Ar laserprobe direct dating of discrete deformational events: a continuous record of early Alpine tectonics in the Pelagonian Zone, NW Aegean area, Greece. Tectonophysics 298:133–153
Maluski H, Vergely P, Bavay D, Bavay P, Katsikatsos G (1981) 39Ar/40Ar dating of glaucophanes and phengites in southern Euboa (Greece): geodynamic implications. Bulletin de la Société Géologique de France 18:469–447
Martha SO, Dörr W, Gerdes A, Petschick R, Schastok J, Xypolias P, Zulauf G (2016) New structural and U–Pb zircon data from Anafi crystalline basement (Cyclades, Greece): constraints on the evolution of a Late Cretaceous magmatic arc in the Internal Hellenides. Int J Earth Sci 105:2031–2060
Mehl C, Jolivet L, Lacombe O, Labrousse L, Rimmele G (2007) Structural evolution of Andros (Cyclades, Greece): a key to the behaviour of a (flat) detachment within an extending continental crust. In: Taymaz T, Yilmaz Y, Dilek Y (eds) The geodynamics of the Aegean and Anatolia. Geol Soc Lond Spec Publ 291:41–73
Molli G, Tribuzio R, Marquer D (2006) Deformation and metamorphism at the eastern border of the Tenda Massif (NE Corsica): a record of subduction and exhumation of continental crust. J Struct Geol 28:1748–1766
Mukhin P (1996) The metamorphosed olistostromes and turbidites of Andros Island, Greece, and their tectonic significance. Geol Mag 133:697–711
Okrusch M, Bröcker M (1990) Eclogites associated with high-grade blueschists in the Cyclades archipelago, Greece: A review. Eur J Miner 2:451–478
Papadopoulos GA (1997) On the interpretation of large-scale seismic tomography images in the Aegean sea area. Ann Geofis 40:37–42
Papanikolaou D (1978) Geological Research in Andros Island. PhD thesis, University of Athens, pp 1–231
Papanikolaou D (2009) Timing of tectonic emplacement of the ophiolites and terrane paleogeography in the Hellenides. Lithos 108:262–280
Papanikolaou D (2013) Tectonostratigraphic models of the Alpine terranes and subduction history of the Hellenides. Tectonophysics 595–596:1–24
Patzak M, Okrusch M, Kreuzer H (1994) The Akrotiri Unit on the island of Tinos, Cyclades, Greece: witness to a lost terrane of late Cretaceous age. Neues Jahrb Geol Palaontol Abh 194:211–252
Peillod A, Ring U, Glodny J, Skelton A (2017) An Eocene/Oligocene blueschist-/greenschist-facies PT loop from Naxos Island, (Cyclades, Greece): deformation-related re-equilibration vs thermal relaxation. J Metamorph Geol 35:805–830
Pe-Piper G, Piper DJW (2006) Unique features of the Cenozoic igneous rocks of Greece. In Dilek Y, Pavlides S (eds) Postcollisional tectonics and magmatism in the Mediterranean region and Asia. Geol Soc Am Spec Pap 409:259–282
Pe-Piper G, Piper DJW, Koukouvelas I, Dolansky LM, Kokkalas K (2009) Postorogenic shoshonitic rocks and their origin by melting underplated basalts: the Miocene of Limnos, Greece. Geol Soc Am Bull 121:39–54
Philippon M, Brun JP, Gueydan F (2011) Tectonics of the Syros blueschists (Cyclades, Greece): From subduction to Aegean extension. Tectonics 30:1–16
Philippot P (1990) Opposite vergence of nappes and crustal extension in the French-Italian western Alps. Tectonics 9:1143–1164
Piper D (2006) Sedimentology and tectonic setting of the Pindos Flysch of the Peloponnese Greece. In: Robertson AHF, Mountrakis D (eds) Tectonic development of the Eastern Mediterranean Region. Geol Soc Lond Spec Publ 260:493–505
Piromallo C, Morelli A (2003) P wave tomography of the mantle under the Alpine-Mediterranean area. J Geophys Res 108:2065. https://doi.org/10.1029/2002JB001757
Platt JP (1975) Metamorphic and deformational processes in the Franciscan Complex, California: some insights from the Catalina Schist terrane. Geol Soc Am Bull 86:337–1347
Pleuger J, Roller S, Walter JM, Jansen E, Froitzheim N (2007) Structural evolution of the contact between two Penninic nappes (Zermatt-Saas zone and Combin zone, Western Alps) and implications for the exhumation mechanism and palaeogeography. Int J Earth Sci 96:229–252
Reinecke T (1982) Cymrite and celsian in manganese-rich metamorphic rocks from Andros Island/Greece. Contrib Miner Petrol 79:333–336
Reinecke T (1986) Phase relationships of sursassite and other Mn-silicates in highly oxidized low-grade, high-pressure metamorphic rocks from Evvia and Andros islands, Greece. Contrib Mineral Petrol 94:110–126
Ridley J (1986) Parallel stretching lineations and fold axes oblique to a shear displacement direction—a model and observations. J Struct Geol 8:647–653
Riguzzi F, Panza G, Varga P, Doglioni C (2010) Can earth’s rotation and tidal despinning drive plate tectonics? Tectonophysics 484:60–73
Ring U, Layer PW (2003) High-pressure metamorphism in the Aegean, eastern Mediterranean: Underplating and exhumation from the Late Cretaceous until the Miocene to recent above the retreating Hellenic subduction zone. Tectonics 22(3):1022. https://doi.org/10.1029/2001TC001350
Ring U, Reischmann T (2002) The weak and superfast Cretan detachment, Greece: exhumation at subduction rates in extrusion wedges. J Geol Soc 159:225–228
Ring U, Brandon MT, Willett SD, Lister GS (1999) Exhumation processes. In: Ring U, Brandon MT, Lister GS, Willett SD (eds) Exhumation processes: normal faulting, ductile flow and erosion. Geol Soc Lond Spec Publ 154:1–27
Ring U, Glodny J, Will T, Thomson SN (2007) An Oligocene extrusion wedge of blueschist-facies nappes on Evia, Aegean Sea, Greece: implications for the early exhumation of high-pressure rocks. J Geol Soc Lond 164:637–652
Ring U, Glodny J, Will J, Thomson SN (2010) The Hellenic subduction system: high-pressure metamorphism, exhumation, normal faulting, and large-scale extension. Ann Rev Earth Planet Sci 38:45–76
Robertson AHF, Dixon JE (1984) Introduction: aspects of the geological evolution of the eastern Mediterranean. In: Robertson AHF, Dixon JE (eds) The geological evolution of the Eastern Mediterranean. Geol Soc Lond Spec Publ 17:1–74
Roche V, Laurent V, Cardello GL, Jolivet L, Scaillet S (2016) Anatomy of the Cycladic Blueschist Unit on Sifnos Island (Cyclades, Greece). J Geodyn 97:62–87
Rosenbaum G, Avigad D, Sánchez-Gómez M (2002) Coaxial flattening at deep levels of orogenic belts: Evidence from blueschists and eclogites on Syros and Sifnos (Cyclades, Greece). J Struct Geol 24:1451–1462
Schermer ER, Lux DR, Burchfiel BC (1990) Temperature-time history of subducted continental crust, Mount Olympus region, Greece. Tectonics 9:1165–1195
Schliestedt M, Bartsch V, Carl M, Matthews A, Henjes-Kunst F (1994) The P-T path of greenschist-facies rocks from the Island of Kithnos (Cyclades, Greece). Chem Erde 54:281–296
Schmid SM, Casey M (1986) Complete fabric analysis of some commonly observed quartz c-axis patterns. In: Hobbs BE, Heard HC (eds) Mineral and Rock Deformation Laboratory Studies: the Paterson Volume. Am Geophys Union, Geophysical Monograph 36:263–286
Schmidt WL, Platt JP (2018) Subduction, accretion, and exhumation of coherent Franciscan blueschist-facies rocks, northern coast ranges, California. Lithosphere 10:301–326
Schumacher JC, Brady JB, Cheney JT, Tonnsen RR (2008) Glaucophane-bearing marbles on Syros, Greece. J Petrol 49:1667–1686
Searle MP, Warren CJ, Waters DJ, Parrish RR (2004) Structural evolution, metamorphism and restoration of the Arabian continental margin, Saih Hatat region, Oman Mountains. J Struct Geol 26:451–473
Shaked Y, Avigad D, Garfunkel Z (2000) Alpine high-pressure metamorphism at the Almyropotamos window (southern Evia, Greece). Geol Mag 137:367–380
Shin TA (2014) Tectonic evolution of Aegean metamorphic core complexes, Andros and Tinos Islands, Greece. Master Thesis, University of Texas, pp 1–362
Spanos D, Xypolias P, Koukouvelas I (2015) Vorticity analysis in calcite tectonites: an example from the Attico-Cycladic massif (Attica, Greece). J Struct Geol 80:120–132
Stipp M, Stunitz H, Heilbronner R, Schmid S (2002) Dynamic recrystallization of quartz: correlation between natural and experimental conditions. In: DeMeer S, Drury MR, De Bresser JHP, Pennock GM (eds) Deformation mechanisms, rheology and tectonics: current status and future perspectives. Geol Soc Lond Spec Publ 200:171–190
Sullivan WA, Beane RJ (2010) Asymmetrical quartz crystallographic fabrics formed during constrictional deformation. J Struct Geol 32:1430–1443
Tagami M, Takeshita T (1998) c-Axis fabrics and microstructures in quartz schist from the Sambagawa metamorphic belt, central Shikoku, Japan. J Struct Geol 20:1549–1568
Trotet F, Jolivet L, Vidal O (2001) Tectono-metamorphic evolution of Syros and Sifnos islands (Cyclades, Greece). Tectonophysics 338:179–206
van Hinsbergen DJJ, Hafkenscheid E, Spakman W, Meulenkamp JE, Wortel MJR (2005) Nappe stacking resulting from subduction of oceanic and continental lithosphere below Greece. Geology 33:325–328
von Huene R, Ranero CR, Vannucchi P (2004) Generic model of subduction erosion. Geology 32:913–916
Wegmann M (2006) Rb/Sr isotopic evolution in metamorphic microstructures in relation to T, p and mineral composition in high-pressure metamorphites of South-Evia, Greece. PhD Thesis, Freie University Berlin
Whitney DL, Teyssier C, Kruckenberg SC, Morgan VL, Iredale LJ (2008) High-pressure-low-temperature metamorphism of metasedimentary rocks, southern Menderes Massif, western Turkey. Lithos 101:218–232
Wiederkehr M, Bousquet R, Schmid SM, Berger A (2008) From subduction to collision: thermal overprint of HP/LT metasediments in the north-eastern Lepontine Dome (Swiss Alps) and consequences regarding the tectono-metamorphic evolution of the Alpine orogenic wedge. In: Froitzheim N, Schmid SM (eds) Orogenic processes in the Alpine collision zone. Swiss J Geosci 101/Suppl 1:S127–S155
Xypolias P, Alsop GI (2014) Regional flow perturbation folding within an exhumation channel: a case study from the Cycladic Blueschists. J Struct Geol 62:141–155
Xypolias P, Doutsos T (2000) Kinematics of rock flow in a crustal-scale shear zone: implication for the orogenic evolution of the southwestern Hellenides. Geol Mag 137:81–96
Xypolias P, Koukouvelas IK (2001) Kinematic vorticity and strain rate patterns associated with ductile extrusion in the Chelmos shear zone (External Hellenides, Greece). Tectonophysics 338:59–77
Xypolias P, Kokkalas S, Skourlis K (2003) Upward extrusion and subsequent transpression as a possible mechanism for the exhumation of HP/LT rocks in Evia Island (Aegean Sea, Greece). J Geodyn 35:303–332
Xypolias P, Spanos D, Chatzaras V, Kokkalas S, Koukouvelas I (2010) Vorticity of flow in ductile thrust zones: examples from the Attico-Cycladic Massif (Internal Hellenides, Greece). In: Law RD et al (eds) Continental tectonics and mountain building: the legacy of Peach and Horne. Geol Soc Lond Spec Publ 335:687–714
Xypolias P, Iliopoulos I, Chatzaras V, Kokkalas S (2012) Subduction- and exhumation-related structures in the Cycladic Blueschists: insights from south Evia Island (Aegean region, Greece). Tectonics 31: TC2001. https://doi.org/10.1029/2011TC002946
Xypolias P, Chatzaras V, Beane R, Papadopoulou S (2013) Heterogeneous constrictional deformation in a ductile shear zone resulting from the transposition of a lineation-parallel fold. J Struct Geol 52:44–59
Xypolias P, Gerogiannis N, Chatzaras V, Papapavlou K, Kruckenberg SC, Aravadinou E, Michels Z (2018) Using incremental elongation and shearing to unravel the kinematics of a complex transpressional zone. J Struct Geol 115:64–81
Ziv A, Katzir Y, Avigad D, Garfunkel Z (2010) Strain development and kinematic significance of the Alpine folding on Andros (western Cyclades, Greece). Tectonophysics 488:248–255
Zlatkin O, Avigad D, Gerdes A (2018). New Detrital Zircon Geochronology From the Cycladic Basement (Greece): implications for the Paleozoic Accretion of Peri-Gondwanan Terranes to Laurussia. Tectonics. https://doi.org/10.1029/2018TC005046
Zulauf G (2001) Structural style, deformation mechanisms and paleodifferential stress along an exposed crustal section: Constraints on the rheology of quartzofeldspathic rocks at supra- and infrastructural levels (Bohemian Massif). Tectonophysics 332:211–237
Zulauf G, Kowalczyk G, Krahl J, Petschick R, Schwanz S (2002) The tectonometamorphic evolution of high-pressure low-temperature metamorphic rocks of eastern Crete, Greece: Constraints from microfabrics, strain, illite crystallinity and paleodifferential stress. J Struct Geol 24:1805–1828
Zulauf G, Dörr W, Fisher-Spurlock SC, Gerdes A, Chatzaras V, Xypolias P (2015) Closure of the Paleotethys in the External Hellenides: constraints from U-Pb ages of magmatic and detrital zircons (Crete). Gondwana Res 28:642–667
Acknowledgements
We are grateful to Michael Bröcker, Giancarlo Molli and Uwe Ring for their constructive review comments as well as to Wolf-Christian Dullo for editorial handling. Thanks are also due to I. Koukouvelas and S. Kokkalas for insightful discussions in the field. We acknowledge the contribution of the ex-students C. Karavoulia, G. Gkekas, P. Kapizionis, D. Sereti, D. Vlassi, A. Kapoutsi and K. Theofani from the University of Patras who mapped parts of the study area in the course of their Bachelor thesis. The staff of the Laboratory of Electron Microscopy & Microanalysis (Univ. Patras) is also acknowledged for their support. Fieldwork for this study was supported by Grant C.924 (awarded to P. Xypolias) from the Research Committee of the University of Patras (Programme K. Karatheodori).
Author information
Authors and Affiliations
Corresponding author
Electronic supplementary material
Below is the link to the electronic supplementary material.
Rights and permissions
About this article
Cite this article
Gerogiannis, N., Xypolias, P., Chatzaras, V. et al. Deformation within the Cycladic subduction–exhumation channel: new insights from the enigmatic Makrotantalo nappe (Andros, Aegean). Int J Earth Sci (Geol Rundsch) 108, 817–843 (2019). https://doi.org/10.1007/s00531-019-01680-3
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s00531-019-01680-3