دوره 26، شماره 1 - ( 1-1397 )                   جلد 26 شماره 1 صفحات 47-62 | برگشت به فهرست نسخه ها


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چکیده:   (501 مشاهده)
توده­ی گابرویی ورچه در استان مرکزی واقع شده و بخشی از منطقه سنندج ـ سیرجان است. به لحاظ سنگ­شناسی این توده نفوذی دارای ترکیب گابرو، مونزوگابرو بوده و دارای سرشت ماگمائی آلکالن می­­باشد. براساس الگوی عناصر REE بهنجار شده با کندریت، غنی­شدگی از LREE (100برابر) و HREE (10 برابر) و بر مبنای الگوی عناصر کمیاب بهنجار شده با گوشته­ی اولیه، غنی­شدگی از عناصر HFSE (Zr, Ti, P) را نشان می­دهد. عدم وجود بهنجاری منفی Nb نشانگر ماگماتیسم با ماهیت قلیایی است. براساس رفتار عناصر Zr,Nb,Yb وLa, Sm می­توان چنین استنباط کرد که ماگمای مولد از گوشته­ی غنی شده با  ترکیب اسپینل – گارنت لرزولیت و درجه ذوب­بخشی10-15درصد حاصل شده است. علت این ماگماتیسم را می­توان به ایجاد گسل­های عمیق و ضخیم­شدگی پوسته در اثر فرورانش نئوتتیس وابسته دانست. ترکیب پلاژیوکلازهای توده گابرویی در گستره­ی آندزین ـ لابرادوریت بوده و کلینوپیروکسن­های آن از نوع دیوپسید است. ترکیب شیمیایی کلینوپیروکسن­ها ویژگی­های سری ماگمایی آلکالن را نشان می­دهند. براساس ژئوترموبارومتری دمای تشکیل کلینوپیروکسن­ها بین 1150 تا 1200درجه­سا­نتی­گراد و فشار تشکیل­شان بین 3 تا 7 براورد شده است.     
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نوع مطالعه: پژوهشي | موضوع مقاله: تخصصي
دریافت: ۱۳۹۶/۱۲/۹ | پذیرش: ۱۳۹۶/۱۲/۹ | انتشار: ۱۳۹۶/۱۲/۹

فهرست منابع
1. [1] Wilson M., "Igneous Petrogenesis", Academic Division of Unwin Hyman Limited. (1989) P. 466. [DOI:10.1007/978-1-4020-6788-4]
2. [2] Wilson M., DOWNES H., CEBRIA J.M., "Contrasting fractionation trends incoexisting continental alkaline magma series; Cantal, Massif Central, France", Journal ofPetrology(1995a), 36, 1729-53.
3. [3] Ngounouno I., Moreau C., De’ruelle B., Demaiffe D., Montigny R., "Pe’trologie du complexe alcalin sous-sature´ de okoumi (Cameroun)", Bulletin de la Socie’te´ Ge’ologique de France (2001), 172, 675–686. [DOI:10.2113/172.6.675]
4. [4] Nekvasil H., Dondolini A., Horn J., Filiberto J., Long H., Lindsley D.H., "The origin and evolution of silica-saturated alkalic suites:an experimental study", Journal of Petrolog(2004),45, 693–721. [DOI:10.1093/petrology/egg103]
5. [5] Vaezipoor M.H., Khalqi M. H., "Geological Survey and Mineral Exploration of Iran", Geology Map 1: 100,000 Varche (1995).
6. [6] Stocklin J., "Structural history and tectonics of Iran; a review", American Association of Petroleum Geologists Bulletin, 52(7) (1968.)1229–1258.
7. [7] Stocklin J., "Structural correlation of the Alpine ranges between Iran and central Asia", Mem. Hors-serie Soc. Geol. Fr., 8(1977):333-353.
8. [8] Berberian M., King G.C.P., "Toward the paleogeraphy and tectonic evolution of Iran.", Canadian jorinal of Earth Sciences, (1981).18,210-265.
9. [9] Sengor A. M. C., "A new model for the late Palaeozoic-Mesozoi tectonic evolution of Iran and implications for Oman, in The Geology and Tectonics of the Oman Region", edited byRobertson, A. H. F., Searle, M. P. and Ries, A.C.: Geol. Soc. Spec. Publ. (1990), 49, 797-831.
10. [10] Ebrahimi M., "Survey of Geology and Petrology of the Igneous Rocks Golpayegan Mrq-White Springs", GraduateThesis, Tehran University, Tehran. (1991)
11. [11] Moinvaziri H., "introduction on magmatism of Iran", Tarbiat Moallem University of Tehran (1996), P 440.
12. [12] Alavi M., "Tectonic of Zagros Orgenic Belt of IRAN: New data and interpretations", tectonophysics, )1994( 299: 211-238
13. [13] Mohajjel M., Fergusson C. L., Sahandi M. R., "Cretaceous–Tertiary convergence and continental collision, Sanandaj–Sirjan Zone, western Iran", Journal asian earth sciences (2003) 21: 397–412. [DOI:10.1016/S1367-9120(02)00035-4]
14. [14] Deevsalar R., Ghorbani M. R., Ghaderi M., Ahmadian J., Murata M., Ozawa H., Shinjo R., "Geoch-emistry and petrogenesis of arc-related to intraplate mafic magmatism from the Malayer-Boroujerd plutonic complex, northern Sanandaj-Sirjan magmatic zone, Iran", Neues Jahrb-uch für Geologie und Paläontologie-Abhandlungen, (2014) 274 (1) P.81-120. [DOI:10.1127/njgpa/2014/0435]
15. [15] Haghnazar Sh., Malakutian S., Alahyari Kh., "Investigating of litologey, Mineralogy and Geochemistrys Characteristics in Javaherdasht Gabbro (East-Gilan)", Irans Crystallography and Mineralogy Society (2010) , No. 1: Page 141.
16. [16] Akbari M., "Petrology and Geochemistry of intrusive in North Khomein and Study of Mineral Potential of that", Master's Thesis, Khorasgan Azad University, Iran. (2010).
17. [17] Thiele O., "Zum alter der metamorphose in Zentral Iran", Mitteilungen der Geologischen Gesellschaft in Wien. 58 (1966) 87-101.
18. [18] Mohajjel M., Eftekharnejad G., "Golpayegan Geological Map, scale 1: 100000", Geological Survey of Iran (1992).
19. [19] Zamani Pedram M., Hosseini H., Sheikholslami M., "Mahallat Geology Map, scale of 1: 100000", Geological Survey of Iran (2007).
20. [20] Sharifi M., "Investigation of Alkaline Magmatism in the North of Golpayegan", Ph.D thesis. Isfahan University (2008).
21. [21] Wager L.R., "Anote on the origin of ophitic texture in the chilled olivine gabbro of the Skaergaard intrusion", Geological Magazine. 98(1960) P. 353 – 366. [DOI:10.1017/S0016756800060829]
22. [22] Vernon, R.H., "A Practical guide to rock microstructure", Cambridge University Perss, United Kingdom. (2004) P. 594. [DOI:10.1017/CBO9780511807206]
23. [23] Middlemost E.A.K., "An introduction to Igneous petrology: Magmatic rocks", Long mans Ed., (1985) PP.266.
24. [24] Irvine, T. N. and Barager, W. R. A., "A guide to the chemical classification of the common volcanic rocks", Canadian Journal of Earth Science, V. 8, (1971) pp. 235-458. [DOI:10.1139/e71-055]
25. [25] Boynton W. V., "Cosmochemistry of the rare earth elements: meteorite studies. Rare Earth Element Geochemistry. Developments in Geochemistry, Ed. Henderson, R.", Elsevier Science Publishers, Amsterdam. 2(1984): P. 89-92.
26. [26] Romick J.D., Kay S.M., Kay R.M., "The influence of amphibole fractionation on the evolution of calc-alkaline andesite and dacite tephra from the central Aleutians, Alaska", Contributions to Mineralogy and Petrology, 112 (1992) 101–118. [DOI:10.1007/BF00310958]
27. [27] Morata D., Oliva C., Cruz R., Suarz M., "The bandurrias gabrro: Late oligocene alkaline magmatism in the patagonian cordillera", Journal of South American Earth Sciences 18(2005) 147-162. [DOI:10.1016/j.jsames.2004.09.001]
28. [28] Nicholson K.N, Black P. M, Hoskin P.W.O, Smith I.E.M., "Silicic volcanism and back arc extension related to migration of the late Cenozoic Australian – Pacific plate boundrary", Journal of volcano and Geotherm, Res, (2004) 131, 295 – 306.
29. [29] Woodhead J. D., Eggins S. M., Johnson R. W., "Magma genesis in the New Britain island arc:further insight into melting and mass transfer processes", J Petrol (1998) 39:1641-1668. [DOI:10.1093/petroj/39.9.1641]
30. [30] Wilson M., "Igneous petrogenesis: a globaltectonic approach", Unwin Hyman, London, (1989) 466P. [DOI:10.1007/978-1-4020-6788-4]
31. [31] Nicholson ‎K.N,‎ Black‎ P.‎ M,‎ Hoskin‎ P.W.O,‎ Smith‎ I.E.M.,‎ "Silicic‎ volcanism‎ and‎ back‎ arc‎ extension‎ related to migration of the late Cenozoic Australian – Pacific plate boundrary. Journal of volcano and Geotherm", Res, 131 (2004) ‎295‎– 306
32. [32] Martin H., "Adakitic magmas: modern analogues of Archaean granitoids", Lithos, 46(1999): 411–429. [DOI:10.1016/S0024-4937(98)00076-0]
33. [33] Sun S., McDonough W., "Chemical and isotopic systematic of oceanic basalt: Implications for mantle composition and processes, Magmatism in the Ocean Basins", Geological Society Special Publications. 42 (1989) P. 313-345 [DOI:10.1144/GSL.SP.1989.042.01.19]
34. [34] Wang Z., Zhao Y., Zou H., Li W., Liu X., Wu H., Xu G., Zhang S., "Petrogenesis of the Early Jurassic Nandaling flood basalts in the Yanshan belt, North China Craton: A correlation between magmatic underplating and lithospheric thinning", Lithos (2007) 96, 543-566. [DOI:10.1016/j.lithos.2006.12.004]
35. [35] Xiao L, Xu Y.G, Mei H.J, Zheng Y.F, He B, Pirajno F., "Distinct mantle sources of Low Ti and High Ti basalts from the western Emeishan large igneous province, SW China: implications for plume – lithosphere interaction, Earth and Planetary" , Science Letters (2004) 228, 525-546. [DOI:10.1016/j.epsl.2004.10.002]
36. [36] Coleman R., McGuire A., "Magma systems related to the Red Sea opening", Tectonophysics (1988) 150:77 –100. [DOI:10.1016/0040-1951(88)90296-X]
37. [37] Pearce J. A., Cann J. R., "Tectonic setting of basic volcanic rocks determined using trace element analyses", Journal Earth and Planetary science Letters. 19(1973) P. 290-300. [DOI:10.1016/0012-821X(73)90129-5]
38. [38] Larsen H.C, Saunders A.D., "Tectonism and volcanism at the Southeast Greenland riftedmargin: a record of plume impact and later continental rupture", in: Saunders, A.D., Larsen,H.C., and Wise, S.H., (ed) Proc.ODP.Sci. Results.152 (1998) 503-533
39. [39] Dungan M.A., Lindstrom M.M., McMilan N.J., Moorbath S., Hoefs S.J., Haskin L.A., J. Goophys. Res., 91 (1986).
40. [40] Wayer S., Munker C., Mezger K., "Nb/Ta, Zr/Hf and REE in the depleted mantle: implications for the diferentiation history of the crust-mantle system", Earth and Planetary Science Letters 205 (2003) 309-324. [DOI:10.1016/S0012-821X(02)01059-2]
41. [41] Wang Y., Fan W., Guo F., "Geochemistry of early Mesozoic potassium-rich dioritesgranodiorites in southeastern Hunan Province, South China: Petrogenesis and tectonic implications", Geochemical Journal 37(2003) 427-448. [DOI:10.2343/geochemj.37.427]
42. [42] Castillo P., Janney P., Solidum R., "Petrology and geochemistry of Camiguin Island, southern Philippines: insights to the source of adakites and other lavas in a complex arc setting", Contributions to Mineralogy and Petrology (1999) 134, 33-51. [DOI:10.1007/s004100050467]
43. [43] Wood D. A., "The application of a Th-Hf-Ta diagram to problems of tectonomagmatic classification and to establishing the nature of crustal contamination of basaltic lavas of the British Tertiary volcanic province", Journal Earth and Planetary Science Letters. 42(1980) P. 77-97. [DOI:10.1016/0012-821X(79)90192-4]
44. [44] Meschede M., "A method of discriminating between different types of mid-ocean ridge basalts and continental tholeiites with the Nb, Zr, Y diagram", Chemical Geology 56(1986) 207–218. [DOI:10.1016/0009-2541(86)90004-5]
45. [45] Shervais J., "Ti-V plots and the petrogenesis of modern and ophiolitic lavas", Earth and Planetary Science Letters. 59(1982) P. 101-118 [DOI:10.1016/0012-821X(82)90120-0]
46. [46] Alvaro J.J., Ezzouhairi H., Vennin E., Ribeiro M.L., Clausen S., Charif A., Ait Ayad N., Moreira M.E., "The early-Cambrian Boho volcano of the El Graraa massif, Moroco; Petrology Geodynamic setting and coeval sedimentation", Journal of African Earth Science. 44(2006) 396-410. [DOI:10.1016/j.jafrearsci.2005.12.008]
47. [47] Fitton-T.G., Hardarson B.S., Ellam K.M., Rogers G., "Sr-, Nd, and Pb-isotopic composition of volcanic rocks from the Southeast Greenland Margin at 63N: temporal variation in crustal contamination during continental breakup", Insaunders, A.D., Larsen, .H.C., and Wise, s.H.,(Eds) Proc.ODP.Sci.Results.152 (1998) 351-357.
48. [48] Sirvastava, R. K. and Singh, R., K. "Trace element geochemistry and genesis of Precambrian subalkaline mafic dikes from the Indian craton: Evidence for mantle metasomatism", Journal of Asian Earth Sciences 23(2004) 373-389. [DOI:10.1016/S1367-9120(03)00150-0]
49. [49] Aldanmaz E., Pearce J.A., Thirlwall M.F., Mitchell J. G., " Petrogenetic evolution of late post Cenozoic, collision volcanism in western Anatolia, Turkey", Journal of volcanology and geothermal Research 102 (2000) 67-97. [DOI:10.1016/S0377-0273(00)00182-7]
50. [50] Winter J.D., "An Introductioin to Igneous and Metamorphic Petrology: New Jersey", Prentice Hall, (2001) 697 p.
51. [51] Ellam R. M., Cox K., "GAn interpretation of Karoo picrate basalts in terms of interaction between asthenospheric magmas and the mantle lithosphere", Earth and Planetary Science Letters 150(. (1991): 330ـ 342
52. [52] Ellam R.M., "Lithospheric as a control on basalt geochemistry", Geology 20(1992): 153–156. https://doi.org/10.1130/0091-7613(1992)020<0153:LTAACO>2.3.CO;2 [DOI:10.1130/0091-7613(1992)0202.3.CO;2]
53. [53] Gurney J.J., Harte B., "Chemical variations in upper mantle nodules from southern Africa kimberlites", Philosophical Transactions of the Royal Society of London, 297(1980) 273–293. [DOI:10.1098/rsta.1980.0215]
54. [54] Giese P. J., Makris B., Akasheh P., Rower H., Letz, Mostaanpour M., "The crustal structure in southern Iran derived from seismic explosion data", Neues Jahrb. Geol. Palaontol. Abh, (1984) 168, 230–243.
55. [55] Best MG., "Igneous and metamorphic petrology", Freeman, sanfrancisco.(1982)
56. [56] Deer W.A., Howie R.A., Zussman J., "An introduction to the Rock – forming minerals", Longman, London, (1991) 528 p.
57. [57] Morimoto N., Kitamura M., "Q-J diagram for classification of pyroxenes", Journal of the Japanese Association of Mineralogists, Petrologists and Economic Geologists (in Japanese) 78 (1983) 141.
58. [58] Schweitzer E. L., papike J. J., bence, "A. Estatical analysis of clinopyroxenes from deep-sea basalts", American Mineralogist. NO.64, (1979) PP.501-513.
59. [59] Letterrier J., Maury R. C., Thonon P., Girard D., Marchal M., "Clinopyroxene composition as a method of identification of the magmatic affinities of paleo-volcanic series", Earth and Planetary Science Letters 59 (1982) 139–54. [DOI:10.1016/0012-821X(82)90122-4]
60. [60] Nisbet E. G., Pearce J. A., "Clinopyroxene composition of mafic lavas from different tectonic" Petrology 63 (1977) 161-173 [DOI:10.1007/BF00398776]
61. [61] LeBas N. J., "the role of aluminous in igneous clinopyroxenes with relation to their parentage", Am.J.Sci. No.260 (1962) PP.267-288.
62. [62] Soesoo A. A., "multivariate statistical analysis of clinopyroxene composition: empirical coordinates for the crystallisation PT-estimations", Geological Society of Sweden (Geologiska Föreningen) 119(1997): 55-60. [DOI:10.1080/11035899709546454]
63. [63] Nimis, Taylor, "Single Clinopyroxene therombarometry for gamet peridotite I. calibration and testing of a cr-in-cpx thermometr – contrib – mineral.", Petrol.139, (2000) 541-554. [DOI:10.1007/s004100000156]
64. [64] Foley S. F., Venturelli G., "High K2O rocks with high MgO, High SiO2 affinities In: Crawford,A. J., (ED.) Boninites and Related Rocks.", Uniwin Hyman London 72-88 (1989).
65. [65] Liu T.C., Chen B.R., Chen C.H.,. "Melting experiment of a Wannienta basalt in the Kuanyinshan area, northern Taiwan, at pressure up to 2 GPa", Journal of Asian Earth Sciences 18 (2000) 519–531. [DOI:10.1016/S1367-9120(00)00002-X]
66. [66] Aoki, K.I., Shiba I., "Pyroxenes from Lherzolite Inclusions of Itinome-Gata", Japan. Lithos, 6, (1973) 41-51. [DOI:10.1016/0024-4937(73)90078-9]
67. [67] Helz R.T., "Phase relationships of basalts in their melting range at pH2O = 5kb as a function of oxygen fugacity", Journal of Petrology (1973) 4 249-302. [DOI:10.1093/petrology/14.2.249]
68. [68] Green T. H., "Crystallization of calc-alkaline andesite under controlled high pressure hydrous condition", Contributions to Mineralogy and Petrology 34(1972): 367-385. [DOI:10.1007/BF00373770]