Petrochemical evidence of magma mingling and mixing in the Tertiary monzogabbroic stocks around the Bafra (Samsun) area in Turkey: implications of coeval mafic and felsic magma interactions
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  • 作者:?rfan Temizel (1)
  • 刊名:Mineralogy and Petrology
  • 出版年:2014
  • 出版时间:June 2014
  • 年:2014
  • 卷:108
  • 期:3
  • 页码:353-370
  • 全文大小:
  • 参考文献:1. Arslan M, Temizel ?, Abdio?lu E, Kolayl? H, Yücel C, Boztu? D, ?en C (2013) 40Ar-39Ar dating, whole-rock and Sr-Nd-Pb isotope geochemistry of post-collisional Eocene volcanics in the southern part of the Eastern Pontides (NE Turkey): ?mplications for magma evolution in extension-induced origin. Contrib Mineral Petrol. 166:113-42
    2. Arslan M, Aslan Z (2006) Mineralogy, petrography and whole-rock geochemistry of the Tertiary granitic intrusions in the Eastern Pontides, Turkey. J Asian Earth Sci 27:177-93 CrossRef
    3. Aslan Z, Arslan M, Temizel ?, Kaygusuz A (2013) K-Ar age, whole-rock, and Sr-Nd isotope geochemistry of calc-alkaline volcanic rocks around the Gümü?hane area (Northeast Turkey): implications for post-collisional volcanism during Tertiary time in the Eastern Pontides. Mineral Petrol. doi:10.1007/s00710-013-0294-2
    4. Bacon CR (1986) Magmatic inclusions in silicic and intermediate volcanic rocks. J Geophys Res 91:6091-112 CrossRef
    5. Bacon CR, Metz J (1984) Magmatic inclusions in rhyolites, contaminated basalts, and compositional zonation beneath the Coso volcanic field, California. Contrib Mineral Petrol 85:46-65
    6. Barbarin B (1986) Comparison of mineralogy of mafic magmatic enclaves and host granitoids, central Sierra Nevada, California. Abstracts of the Geological Society of America Annual Meeting 18:83
    7. Barbarin B (1990) Plagioclase xenocrysts and mafic magmatic enclaves in some granitoids of the Sierra Nevada Batholith, California. J Geophys Res 95:17747-7756 CrossRef
    8. Barbarin B, Didier J (1992) Genesis and evolution of mafic microgranular enclaves through various types of interaction between co-existing felsic and mafic magmas. Trans R Soc Edinb Earth Sci 83:145-53 CrossRef
    9. Best MG (2006) Igneous and metamorphic petrology, 2nd edn. Blackwell, USA, 729
    10. Blake S, Fink JH (2000) On the deformation and freezing of enclaves during magma mixing. J Volcanol Geoth Res 95:1- CrossRef
    11. Borg LE, Nyquist LE, Wiesmann H, Shih CY (1997) Constraints on Martian differentiation processes from Rb-Sr and Sm-Nd isotopic analyses of the basaltic shergottite QUE94201. Geochim Cosmochim Acta 61:4915-931 CrossRef
    12. Bozkurt E, Mittwede SK (2001) Introduction to the geology of Turkey-a synthesis. Int Geol Rev 43:578-94 CrossRef
    13. Boztu? D, Ku??u ?, Er?in A?, Avc? N (2003) Mineral deposits associated with the pre-, syn- and post-collisional granitoids of the Neo-Tethyan convergence system between the Eurasian and Anatolian plates in NE and Central Turkey. In: Eliopoulos D et al (eds) Mineral exploration and sustainable development. Millpress, Rotterdam, pp 1141-144
    14. Boztu? D, Jonckheere R, Wagner GA, Ye?ingil Z (2004) Slow Senonian and fast Paleocene–Early Eocene uplift of the granitoids in the Central Eastern Pontides, Turkey: apatite fission-track results. Tectonophysics 382:213-28 CrossRef
    15. Boztu? D, Jonckheere RC, Arslan M, ?en C, Karsl? O, Er?in A? (2005) Eocene slab break-off revealed by the E-W distribution of the multi-sourced granitoids and tectonic denudation in the eastern Pontides, Turkey. Geophys Res Abstr 7:02129
    16. Boztu? D, Er?in A?, Kuru?elik MK, G?? D, K?mür ?, ?skendero?lu A (2006) Geochemical characteristics of the composite Ka?kar batholith generated in a Neo-Tethyan convergence system, Eastern Pontides, Turkey. J Asian Earth Sci 27:286-02 CrossRef
    17. Boztu? D, Jonckheere RC, Wagner GA, Er?in A?, Ye?ingil Z (2007) Titanite and zircon fission-track dating resolves successive igneous episodes in the formation of the composite Ka?kar batholith in the Turkish Eastern Pontides. Int J Earth Sci 96:875-86 CrossRef
    18. Boztu? D, Harlavan Y (2008) K-Ar ages of granitoids unravel the stages of Neo-Tethyan convergence in the eastern Pontides and central Anatolia, Turkey. Int J Earth Sci 97:585-99 CrossRef
    19. Bussy F (1990) Petrogenese des enclaves microgrenues associees aux granitoides calco-alcalins: exemples des massifs varisques du Mont-Blanc (Alpes occidentales) et Miocene du Monte Capanne (Iled’Elbe, Italie). Ph.D. Thesis, Memoire de Geologie, Lausanne
    20. Castro A (2001) Plagioclase morphologies in assimilation experiments: implications for disequilibrium melting in the generation of granodiorite rocks. Mineral Petrol 71:31-9 CrossRef
    21. Chappell BW (1996) Magma mixing and the production of compositional variation within granite suites: evidence from the granites of southeastern Australia. J Petrol 37:449-70 CrossRef
    22. Chappell BW, White AJR (1974) Two contrasting granite types. Pac Geol 8:173-74
    23. Chappell BW, White AJR (1992) I- and S-type granites in the Lachlan Fold Belt. Trans R Soc Edinb Earth Sci 83:1-6 CrossRef
    24. Cherniak DJ, Watson EB (1992) A study of strontium diffusion in K-feldspar, Na-K feldspar and anorthite using Rutherford Backscattering Spectroscopy. Earth Planet Sci Lett 113:411-25 CrossRef
    25. Collins WJ (1998) Evaluation of petrogenetic models for Lachlan Fold Belt granitoids: implications for crustal architecture and tectonic models. Aust J Earth Sci 45:483-00 CrossRef
    26. Debon F (1991) Comparative major element chemistry in various “microgranular enclave-plutonic host-pairs. In: Didier J, Barbarin B (eds) Enclaves and granite petrology. Elsevier, Amsterdam, pp 293-12
    27. De Rosa R, Donato P, Ventura G (2002) Fractal analysis of mingled/mixed magmas: an example from the Upper Polara eruption (Salina Island, southern Tyrrhenian Sea, Italy). Lithos 65:299-11 CrossRef
    28. Dokuz A, Tanyolu E, Gen? S (2006) A mantle- and a lower crustderived bimodal suite in the Yusufeli (Artvin) area, NE Turkey: trace element and REE evidence for subduction-related rift origin of Early Jurassic Demirkent intrusive complex. Intern Earth Sci 95:370-94 CrossRef
    29. Dungan MA, Rhodes JM (1978) Residual glasses and melt inclusions in basalts from DSDP Leg 45 and 46: evidence for magma mixing. Contrib Mineral Petrol 67:417-31 CrossRef
    30. Eby GN (1992) Chemical subdivision of the A-type granitoids: petrogenetic and tectonic implications. Geology 20:641-44 CrossRef
    31. Eichelberger JC (1978) Andesitic volcanism and crustal evolution. Nature 275:21-2 CrossRef
    32. Eichelberger JC, Chertkoff DG, Dreher ST, Nye CJ (2000) Magmas in collision: rethinking chemical zonation in silicic magmas. Geology 28:603-06 CrossRef
    33. Faure G, Mensing TM (2005) Isotopes: Principles and applications, 3rd edn. Wiley, USA, 897p
    34. Fershtater GB, Borodina NS (1991) Enclave in the Hercynian granitoids of the Urals Mountains, U.S.S.R. In: Didier J, Barbarin B (eds) Enclaves and granite petrology. Elsevier, Amsterdam, pp 83-4
    35. Floyd RA, G?ncüo?lu MC, Winchester JA, Yal?n?z MK (2000) Geochemical character and tectonic environment of Neotethyan ophiolitic fragments and metabasites in the Central Anatolian Crystalline Complex, Turkey. In: Bozkurt E, Winchester JA (Eds.), Tectonics and Magmatism in Turkey and the surrounding area. Geol Soc London Spec Publ 173:182-02
    36. Frost TP, Mahood GA (1987) Style of mafic-felsic magma interaction: the lamarck Granodiorite, Sierra Nevada, Califomia. Geo Soc Am Bull 99:272-91 CrossRef
    37. Gedik A, Ercan T, Korkmaz S (1984) Orta Karadeniz (Samsun-Sinop) havzas?n?n jeolojisi ve volkanik kaya?lar?n?n petrolojisi. MTA Enst Derg 99-00:34-0
    38. Gedik A, Korkmaz S (1984) Sinop havzas?n?n jeolojisi ve petrol olanaklar?, MTA Rapor No: 7575
    39. Gill JB (1981) Orogenic andesites and plate tectonics. Springer, Berlin, 390p CrossRef
    40. Grove TL, Donnelly-Nolan JM (1986) The evolution of young silicic lavas at Medicine Lake Volcano, California: implications for the origin ofcompositional gaps in calc-alkaline series lavas. Contrib Mineral Petrol 92:281-02 CrossRef
    41. Güven ?H (1993) 1:25000-Scale geological and metallogenical map of the eastern Black Sea Region. Mineral Research and Exploration Institute of Turkey. (MTA) Publications, Ankara, Turkey, p 98
    42. Harris NBW, Pearce JA, Tindle AG (1986) Geochemical characteristics of collision- zone magmatism. In: Coward M P, Ries A C (eds.), Collision Tectonics. Geol Soc London Spec Publ 19:67-1
    43. Heiken G, Eichelberger JC (1980) Eruptions at Chaos Crags, Lassen Volcanic National Park, California. J Volcanol Geoth Res 7:443-81 CrossRef
    44. Hibbard MJ (1981) The magma mixing origin of mantled feldspars. Contrib Mineral Petrol 76:158-70 CrossRef
    45. Hibbard MJ (1991) Textural anatomy of twelve magma-mixed granitoid systems. In: Didier J, Barbarin B (eds) Enclaves and granite petrology. Elsevier, Amsterdam, pp 431-44
    46. Hibbard MJ (1995) Petrography to petrogenesis. Prentice Hall, New Jersey
    47. Holton T, Jamtveit B, Meakin P (1999) Noise and oscillatory zoning of minerals. Geochim Cosmochim Acta 64:1893-904 CrossRef
    48. Irvine TN, Baragar WRA (1971) A guide to the chemical classification of common volcanic rocks. Can J Earth Sci 8:523-48 CrossRef
    49. Jacobsen SB, Wasserburg GJ (1980) Sm-Nd isotopic evolution of chondrites. Earth Planet Sci Lett 50:139-55 CrossRef
    50. Janousek V, Bowes DR, Braithwaite CJR, Rogers G (2000) Microstructural and mineralogical evidence for limited involvement of magma mixing in the petrogenesis of a Hercynian high-K calc-alkaline intrusion: the Kozarovice granodiorite, Central Bohemian Pluton, Czech Republic. Trans R Soc Edinb Earth Sci 91:15-6 CrossRef
    51. Kaygusuz A, Aslan Z, Siebel W, ?en C (2011) Geochemical and Sr-Nd Isotopic Characteristics of Post-Collisional Calc-Alkaline Volcanics in the Eastern Pontides (NE Turkey). Turkish J Earth Sci 20:137-59
    52. Klein EM (2004) Geochemistry of the igneous oceanic crust, In: Treatise on Geochemistry. Holland HD, Turekian KK (Eds.), Elsevier, Amsterdam 3:433-63
    53. Kumar S, Rino V, Pal AB (2004) Field evidence of magma mixing from microgranular enclaves hosted in Palaeoproterozoic Malanjkhand granitoids, central India. Gondwana Res 7:539-48 CrossRef
    54. Liankun S, Kuirong Y (1991) A two-stage crust-mantle interaction model for mafic microgranular enclaves in the Doning granodiorite Pluton, Guangxi, China. In: Didier J, Barbarin B (eds) Enclaves and granite petrology. Elsevier, Amsterdam, pp 95-12
    55. Liégeois JP, Black R (1987) Alkaline magmatism subsequent to collision in the Pan-african belt of the Adrar des loras (Mali). In: Fitton JG, Upton BJG (Eds.), Alkaline igneous rocks. Geol Soc London Spec Publ 30:381-01
    56. Liew TC, Hofmann AW (1988) Precambrian crustal components, plutonic associations, plate environment of the Hercynian Fold Belt of central Europe: indications from a Nd and Sr isotopic study. Contrib Mineral Petrol 98:129-38
    57. Macdonald R, Belkin HE, Fitton JG, Rogers NW, Nejbert K, Tindle AG, Marshal AS (2008) The role of fractional crystallization, magma mixing, crystal mush remobilization and volatile-melt interactions in the genesis of young basalt-peralkaline rhyolite suite, the Greator Olkaria Volcanic Complex, Kenya Rift Valley. J Petrol 49:1515-547 CrossRef
    58. McBirney AR (1980) Mixing and unmixing of magmas. J Volcanol Geoth Res 7(3-):357-71 CrossRef
    59. Mcculloch MT, Gamble JA (1991) Geochemical and geodynamical constraints on subduction zone magmatism. Earth Planet Sci Lett 102:358-74 CrossRef
    60. McCulloch MT, Kyser TK, Woodhead JD, Kinsley L (1994) Pb-Sr-Nd-O Isotopic Constraints on the Origin of Rhyolites from the Taupo Volcanic Zone of New Zealand: evidence for assimilation followed by fractionation of basalt. Contrib Mineral Petrol 115:303-12 CrossRef
    61. Middlemost EAK (1994) Naming materials in the magma/igneous rock system. Earth Sci Rev 37:215-24 CrossRef
    62. Miyashiro A (1978) Nature of alkalic volcanic rock series. Contrib Mineral Petrol 66:91-04 CrossRef
    63. Moore JG, Sisson TW (2008) Igneous phenocrystic origin of K-feldspar megacrysts in granitic rocks from the Sierra Nevada batholith. Geosphere 4:387-00 CrossRef
    64. Nardi LVS, Lima EF (2000) Hybridisation of microgranular enclaves in the Lavras Granite Complex, southern Brazil. J South Am Earth Sci 13:67-8 CrossRef
    65. Nixon GT, Pearce TH (1987) Iaser-interferornetry study of oscillatory zoning in plagioclase:T he record of magma mixing and phenocryst recycling in calc-alkaline magma chambers, Iztaccihuatl volcano, Mexico. Am Miner 72:1144-162
    66. Okay A?, ?ahintürk ? (1997) Geology of the eastern Pontides, in: Robinson AG (Ed.), Regional and Petroleum Geology of the Black Sea and Surrounding Region. AAPG Memoir 68:291-11
    67. Okay AI, Tansel ?, Tüysüz O (2001) Obduction, subduction and collusion as refl ected in the Upper Cretaceous–Lover Eocene sedimentary record of western Turkey. Geol Mag 138:117-42 CrossRef
    68. Okay A?, Tüysüz O (1999) Tethyan sutures of northern Turkey. Geol Soc London Spec Publ 156:475-15 CrossRef
    69. Pearce JA (1982) Trace element characteristics of lavas from destructive plate boundaries. In: Thorp RS (ed) Andesites: Orogenic andesites and related rocks. Wiley, New York, pp 525-48, 724 p
    70. Pearce JA (1996) A user’s guide to basalt discrimination diagrams. In: Wyman DA (ed.) Trace Element Geochemistry of Volcanic Rocks: Applications for Massive Sulphide Exploration. Geological Association of Canada, Short Course Notes 12:79-13
    71. Pearce JA, Harris NBW, Tindle AG (1984) Trace element discrimination diagrams for the tectonic interpretation of granitic rocks. J Petrol 25:956-83 CrossRef
    72. Pearce JA, Bender JF, De Long SE, Kidd WSF, Low PJ, Güner Y, ?aro?lu F, Y?lmaz Y, Moorbath S, Mitchell JJ (1990) Genesis of collision volcanism in eastern Anatolia Turkey. J Volcanol Geoth Res 44:189-29 CrossRef
    73. Pearce JA, Peate DW (1995) Tectonic implications of the composition of volcanic arc magmas. Ann Rev Earth Planet Sci 23:251-85 CrossRef
    74. Perugini D, Poil G (2004) Analysis and numerical simulation of chaotic advection and chemical diffusion during magma mixing: petrological implications. Lithos 78(1-):43-6 CrossRef
    75. Perugini D, Ventura G, Petrelli M, Poli G (2004) Kinematic significance of morphological structures generated by mixing of magmas: a case study from Salina Island (southern Italy). Earth Planet Sci Lett 222:1051-066 CrossRef
    76. Piccoli PM, Candela PA (2002) Apatite in igneous system. Rev Mineral Geochem 48:255-92 CrossRef
    77. Poli G, Tommasini S, Halliday AN (1996) Trace elements and isotopic exchange during acid-basic magma interaction processes. Trans R Soc Edinb Earth Sci 87:225-32 CrossRef
    78. Robinson DM, Miller CF (1999) Record of magma chamber processes preserved in accessory mineral assemblages. Am Miner 84:1346-353
    79. Sakuyama M (1981) Petrological study of the Myoko and Kurochime volcanoes, Japan: crystallization sequences and evidence for magma mixing. J Petrol 22:553-83 CrossRef
    80. Singer BS, Dingan MA, Layne GD (1995) Textures and Sr, Ba, Mg, Fe, K, and Ti compositional profiles in volcanic plagioclase: clues to the dynamics of calc-alkaline magma chambers. Am Miner 80:776-98
    81. Sparks RSJ, Marshall LA (1986) Thermal and mechanical constraints on mixing between mafic and silicic magmas. J Volcanol Geotherm Res 29:99-24 CrossRef
    82. Sparks RSJ, Sigurdsson SH, Wilson L (1977) Magma mixing: a mechanism for triggering acid explosive eruptions. Nature 267:315-18 CrossRef
    83. Sun SS, Mcdonough WF (1989) Chemical and isotopic systematics of oceanic basalts: implications for mantle composition and processes. In: Saunders AD, Norry MJ (Eds.), Magmatism in the Ocean Basins. Geol Soc London Spec Publ 42:313-45
    84. ?eng?r AMC, Y?lmaz Y (1981) Tethyan evolution of Turkey: a plate tectonic approach. Tectonophysics 75:181-41 CrossRef
    85. Taylor SR, Mclennan SM (1985) The continental crust: Its composition and evolution. Blackwell, Scientific Publication, Oxford, 312
    86. Temizel ?, Arslan M, Ruffet G, Peucat JJ (2012) Petrochemistry, geochronology and Sr-Nd isotopic systematics of the Tertiary collisional and post-collisional volcanic rocks from the Ulubey (Ordu) area, eastern Pontide, NE Turkey: implications for extension-related origin and mantle source characteristics. Lithos 128:126-47 CrossRef
    87. Thirlwall MF, Smith TE, Graham AM, Theodorou N, Hollings P, Davidson JP, Arculus RJ (1994) High field strength element anomalies in arc lavas; source or process? J Petrol 35:819-38 CrossRef
    88. Thomas N, Tait SR (1997) The dimensions of magmatic inclusions as a constraint on the physical mechanism of mixing. J Volcanol Geoth Res 75:167-78 CrossRef
    89. Tsuchiyama A (1985) Dissolution kinetics of plagioclasein the melt of the system diopside-albite-anorthite, and origin of dusty plagioclase in andesites. Contrib Mineral Petrol 89:1-6 CrossRef
    90. Topuz G, Altherr R, Schwarz WH, S?ebel W, Sat?r M, Dokuz A (2005) Post-collisional plutonism with adakite-like signatures: the Eocene Sarayc?k granodiorite (Eastern Pontides, Turkey). Contrib Mineral Petrol 150:441-55 CrossRef
    91. Topuz G, Okay AI, Altherr R, Schwarz WH, Siebel W, Zack T, Sat?r M, ?en C (2011) Early Eocene post-collisional adakite-like magmatism in the A?vanis Massif (Eastern Pontides, Turkey) and implications for the evolution of the Eocene magmatism. Lithos 125:131-50 CrossRef
    92. Vance JA (1965) Zoning in igneous plagioclase: patchy zoning. J Geol 73:636-51 CrossRef
    93. Vernon RH (1983) Restite, xenoliths and microgranitoid enclaves in granites. J Proc Roy Soc New S Wales 116:77-03
    94. Vernon RH, Paterson SR (2008) How late are K-feldspar megacrysts in granites? Lithos 104:327-36 CrossRef
    95. Weinberg RF, Sial AN, Pessoa RR (2001) Magma flow within the traverse pluton, northeastern Brazil: compositional and thermal convection. Geol Soc Am Bull 113:508-20 CrossRef
    96. Weis D, Kieffer B, Maerschalk C, Barling J, de Jong J, Willians GA, Hanano D, Pretorius W, Scoates JS, Goolaerts A, Friedman RM, Mahoney JB (2006) High-precision isotopic characterization of USGS reference materials by TIMS and MC-ICP-MS. Geochem Geophys Geosyst 7:1-0 CrossRef
    97. Williams Q, Tobisch OT (1994) Microgranitic enclave shapes and magmatic strain histories: constraints from drop deformation theory. J Geophys Res 99:24359-4368 CrossRef
    98. Wilson M (1989) Igneous petrogenesis. Oxford University Press, Oxford, 466pp CrossRef
    99. Ya?c?o?lu UC, Abdio?lu E, Arslan M, Schroeder PA (2012) Mineralogy and chemistry of the zeolites and associated minerals in the Tekkek?y (Samsun) volcanics, N Tturkey: preliminary results. Proceedings of 15th National Clay Symposium p. 371-72
    100. Y?lmaz Y (1972) Petrology and structure of the Gümü?hane granite and the surrounding rocks. NE Anatolia, PhD Thesis University College London, England. 248 pp
    101. Y?lmaz S, Boztu? D (1996) Space and time relations of three plutonic phases in the Eastern Pontides, Turkey. Int Geol Rev 38:935-56 CrossRef
    102. Y?lmaz Y, Tüysüz O, Yi?itba? E, Gen? ?C, ?eng?r AMC (1997) Geology and tectonics of the Pontides. In: Robinson AG (Ed.), Regional and Petroleum Geology of the Black Sea and Surrounding Region. AAPG Memoir 68:183-26
    103. Y?lmaz-?ahin S, Güng?r Y, Boztu? D (2004) Comparative petrogenetic investigation of Composite Ka?kar Batholith granitoids in Eastern Pontide magmatic arc-Northern Turkey. Earth Planets Space 56:429-46
    104. Yolda? R, Balk?ray K, Granit S. Korkmaz S, Didik S, Kalkan ?, A?r?da? DS, Besbelli B (1985) Samsun ve dolay?n?n (K?z?l?rmak-Ye?il?rmak aras?ndaki B?lgenin) jeolojisi ve petrol olanaklar?na ili?kin rapor, MTARapor No: 8130
    105. Zindler A, Hart SR (1986) Chemical geodynamics. Ann Rev Earth Planet Sci 14:493-71 CrossRef
  • 作者单位:?rfan Temizel (1)

    1. Department of Geological Engineering, Karadeniz Technical University, TR-61080, Trabzon, Turkey
  • ISSN:1438-1168
文摘
Miocene aged calc-alkaline mafic host stocks (monzogabbro) and felsic microgranular enclaves (monzosyenite) around the Bafra (Samsun) area within Tertiary volcanic and sedimentary units of the Eastern Pontides, Northeast Turkey are described for the first time in this paper. The felsic enclaves are medium to fine grained, and occur in various shapes such as, elongated, spherical to ellipsoidal, flame and/or rounded. Most enclaves show sharp and gradational contacts with the host monzogabbro, and also show distinct chilled margins in the small enclaves, indicating rapid cooling. In the host rocks, disequilibrium textures indicating mingling or mixing of coeval mafic and felsic magmas are common, such as, poikilitic and antirapakivi textures in feldspar phenocrysts, sieve textured-patchy-rounded and corroded plagioclases, clinopyroxene megacrysts mantled by bladed biotites, clinopyroxene rimmed by green hornblendes, dissolution in clinopyroxene, bladed biotite, and acicular apatite. The petrographical and geochemical contrasts between the felsic enclaves and host monzogabbros may partly be due to a consequence of extended interaction between coeval felsic and mafic magmas by mixing/mingling and diffusion. Whole-rock and Sr-Nd isotopic data suggests that the mafic host rocks and felsic enclaves are products of modified mantle-derived magmas. Moreover, the felsic magma was at near liquidus conditions when injected into the mafic host magma, and that the mafic intrusion reflects a hybrid product formed due to the mingling and partial (incomplete) mixing of these two magmas.

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