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Titolo:
Multistage exhumation of the Menderes Massif, western Anatolia (Turkey)
Autore:
Lips, ALW; Cassard, D; Sozbilir, H; Yilmaz, H; Wijbrans, JR;
Indirizzi:
Univ Utrecht, Fac Earth Sci, Vening Meinesz Res Sch Geodynam, NL-3508 TA Utrecht, Netherlands Univ Utrecht Utrecht Netherlands NL-3508 TA 3508 TA Utrecht, Netherlands BRGM, Dept Met Genie & Geodynam, Orleans, France BRGM Orleans FranceBRGM, Dept Met Genie & Geodynam, Orleans, France Dokuz Eylul Univ, Dept Geol Engn, Izmir, Turkey Dokuz Eylul Univ Izmir Turkey Eylul Univ, Dept Geol Engn, Izmir, Turkey Eurogold Madencilik AS, Explorat Div, Izmir, Turkey Eurogold Madencilik AS Izmir Turkey lik AS, Explorat Div, Izmir, Turkey Vrije Univ Amsterdam, Fac Earth Sci, Amsterdam, Netherlands Vrije Univ Amsterdam Amsterdam Netherlands Sci, Amsterdam, Netherlands
Titolo Testata:
INTERNATIONAL JOURNAL OF EARTH SCIENCES
fascicolo: 4, volume: 89, anno: 2001,
pagine: 781 - 792
SICI:
1437-3254(200104)89:4<781:MEOTMM>2.0.ZU;2-J
Fonte:
ISI
Lingua:
ENG
Soggetto:
METAMORPHIC CORE COMPLEX; MESOZOIC COVER SERIES; PAN-AFRICAN BASEMENT; SOUTHWESTERN TURKEY; EXTENSIONAL TECTONICS; NORTHEASTERN GREECE; AUGEN GNEISSES; DUCTILE CRUST; SW TURKEY; EVOLUTION;
Keywords:
Menderes Massif; Aegean region; Ar-40/Ar-39 laser-probe dating; basement kinematics; orogenic collapse;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
49
Recensione:
Indirizzi per estratti:
Indirizzo: Lips, ALW Univ Utrecht, Fac Earth Sci, Vening Meinesz Res Sch Geodynam, POB 80-021, NL-3508 TA Utrecht, Netherlands Univ Utrecht POB 80-021 Utrecht Netherlands NL-3508 TA herlands
Citazione:
A.L.W. Lips et al., "Multistage exhumation of the Menderes Massif, western Anatolia (Turkey)", INT J E SCI, 89(4), 2001, pp. 781-792

Abstract

Structural analyses along selected transects across the Menderes Massif and incorporation of existing data have resulted in a synthetic cross sectionacross southwestern Turkey. The tectonic interpretation has been combined with Ar-40/Ar-39 laser-probe experiments on two syn-kinematic white mica populations, which, respectively, predate and overprint documented Early Miocene deformational fabrics. Our results indicate that the regional extensionhad initiated by Eocene-Oligocene times. A 36 +/-2 Ma Ar-40/Ar-39 age derived from white mica which formed during a regionally observed, northward-directed tectonic transport suggests that the extension was contemporaneous with the tectonic emplacement of mid-crustal continental basement. Alternatively, the age may relate to the regional cooling of the basement sequence, and thus postdates the tectonic emplacement, In the latter scenario, the analysis fails to solve the present ambiguity on the Pan-African or Alpine affinity of the northward-directed transport. Further exhumation of basement rocks is characterized by a dominant displacement along the north-dipping Gediz Detachment at the northern margin of the massif, which developed underductile conditions in the Early Miocene by partial exploitation of older zones of weakness, which originated from an earlier phase of basement emplacement. Youngest (semi)ductile activity along the Gediz Detachment has been recorded as having a 7 +/-1 Ma Ar-40/Ar-39 age derived from syn-kinematic white mica in the top of the detachment. Following the initiation of the ductile Gediz Detachment, an antithetic, semibrittle, and south-dipping Buyuk Menderes Detachment had developed in the center of the massif, which, together with the Gediz Detachment, accommodated further doming of the central part of the Menderes Massif and controlled the architecture of the surrounding supradetachment basins.

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Documento generato il 05/12/20 alle ore 02:07:04