İLBEYLİ, N. (2005) Mineralogical–geochemical constraints on intrusives in central Anatolia, Turkey: tectono-magmatic evolution and characteristics of mantle source. Geological Magazine, 142 (2) 187-207 doi:10.1017/s0016756805000476
| Reference Type | Journal (article/letter/editorial) | ||
|---|---|---|---|
| Title | Mineralogical–geochemical constraints on intrusives in central Anatolia, Turkey: tectono-magmatic evolution and characteristics of mantle source | ||
| Journal | Geological Magazine | ||
| Authors | İLBEYLİ, N. | Author | |
| Year | 2005 (March) | Volume | 142 |
| Issue | 2 | ||
| Publisher | Cambridge University Press (CUP) | ||
| DOI | doi:10.1017/s0016756805000476Search in ResearchGate | ||
| Generate Citation Formats | |||
| Mindat Ref. ID | 259630 | Long-form Identifier | mindat:1:5:259630:7 |
| GUID | 0 | ||
| Full Reference | İLBEYLİ, N. (2005) Mineralogical–geochemical constraints on intrusives in central Anatolia, Turkey: tectono-magmatic evolution and characteristics of mantle source. Geological Magazine, 142 (2) 187-207 doi:10.1017/s0016756805000476 | ||
| Plain Text | İLBEYLİ, N. (2005) Mineralogical–geochemical constraints on intrusives in central Anatolia, Turkey: tectono-magmatic evolution and characteristics of mantle source. Geological Magazine, 142 (2) 187-207 doi:10.1017/s0016756805000476 | ||
| In | (2005, March) Geological Magazine Vol. 142 (2) Cambridge University Press (CUP) | ||
| Abstract/Notes | Collision-related rocks intrude metamorphic rocks overthrust by ophiolitic units to make up the Central Anatolian Crystalline Complex. A wide variety of rock types were produced by the latest Cretaceous magmatism in the complex. These rocks can be divided into three distinct units: (1) calc-alkaline (Ağaçören, Behrekdağ, Cefalıkdağ, Çelebi, Ekecikdağ, Halaçlı, Karamadazı, Kösefakılı, Terlemez, Üçkapılı, Yozgat); (2) sub-alkaline (Baranadağ); and (3) alkaline (Atdere, Davulalan, Eğrialan, Hamit, İdişdağı, Karaçayır). The calc-alkaline rocks are metaluminous/peraluminous I- to S-type plutons ranging from monzodiorite to granite. The sub-alkaline rocks are metaluminous I-type plutons ranging from monzonite to granite. The alkaline rocks are metaluminous to peralkaline plutons, predominantly A-type, ranging from foid-bearing monzosyenite to granite. These plutons crystallized under varying pressures (5.3–2.6 kbar) and a wide range of temperatures (858–698 °C) from highly oxidized magmas (log fO2 −17 to −12). All intrusive rocks display enrichment in LILE and LREE compare to HFSE and have high 87Sr/86Sr and low 143Nd/144Nd ratios. These characteristics indicate that these rocks are derived from a mantle source containing large subduction components, and have experienced assimilation coupled with fractional crystallization (AFC) during uprise through crust. The coexistence of calc-alkaline and alkaline magmatism in the complex may be ascribed to mantle source heterogeneity before collision. Either thermal perturbation of the metasomatized lithosphere by delamination of the thermal boundary layer or removal of a subducted plate (slab breakoff) are the likely mechanisms for the initiation of the collision-related magmatism in the complex. | ||
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