caa a22 4500 445389907 CHVBK 20180317143043.0 cr unu---uuuuu 170323e20111101xx s 000 0 eng 10.1007/s00710-011-0165-7 doi (NATIONALLICENCE)springer-10.1007/s00710-011-0165-7 Magma mixing/mingling in the Eocene Horoz (Nigde) granitoids, Central southern Turkey: evidence from mafic microgranular enclaves [Elektronische Daten] [Kerim Kocak, Veysel Zedef, Gursel Kansun] Mafic microgranular enclaves (MMEs) are widespread in the Horoz pluton with granodiorite and granite units. Rounded to elliptical MMEs have variable size (from a few centimetres up to metres) and are generally fine-grained with typical magmatic textures. The plagioclase compositions of the MMEs range from An18-An64 in the cores to An17-An29 in the rims, while that of the host rocks varies from An17 to An55 in the cores to An07 to An33 in the rims. The biotite is mostly eastonitic, and the calcic-amphibole is magnesio-hornblende and edenite. Oxygen fugacity estimates from both groups' biotites suggest that the Horoz magma possibly crystallised at fO2 conditions above the nickel-nickel oxide (NNO) buffer. The significance of magma mixing in their genesis is highlighted by various petrographic and mineralogical characteristics such as resorption surfaces in plagioclases and amphibole; quartz ocelli rimmed by biotite and amphibole; sieve and boxy cellular textures, and sharp zoning discontinuities in plagioclase. The importance of magma mixing is also evident in the amphiboles of the host rocks, which are slightly richer in Si, Fe3+ and Mg in comparison with the amphiboles of MMEs. However, the compositional similarity of the plagioclase and biotite phenocrysts from MMEs and their host rocks suggests that the MMEs were predominantly equilibrated with their hosts. Evidence from petrography and mineral chemistry suggests that the adakitic Horoz MMEs could be developed from a mantle-derived, water-rich magma (>3 mass%) affected by a mixing of felsic melt at P >2.3kbar, T >730°C. Springer-Verlag, 2011 Kocak Kerim Department of Geological Engineering, Selcuk University, 42075, Konya, Turkey aut Zedef Veysel Department of Mining Engineering, Selcuk University, 42075, Konya, Turkey aut Kansun Gursel Department of Geological Engineering, Selcuk University, 42075, Konya, Turkey aut Mineralogy and Petrology Springer Vienna 103/1-4(2011-11-01), 149-167 0930-0708 103:1-4<149 2011 103 710 https://doi.org/10.1007/s00710-011-0165-7 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s00710-011-0165-7 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Kocak Kerim Department of Geological Engineering, Selcuk University, 42075, Konya, Turkey aut NATIONALLICENCE 700 1- Zedef Veysel Department of Mining Engineering, Selcuk University, 42075, Konya, Turkey aut NATIONALLICENCE 700 1- Kansun Gursel Department of Geological Engineering, Selcuk University, 42075, Konya, Turkey aut NATIONALLICENCE 773 0- Mineralogy and Petrology Springer Vienna 103/1-4(2011-11-01), 149-167 0930-0708 103:1-4<149 2011 103 710 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer