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Doaee, Ghorbani, Sadeghian. Geochemistry and petrology of gabbrodiorites from Palang Dar Area (Northeast Damghan). www.ijcm.ir 2020; 28 (3) :751-762
URL: http://ijcm.ir/article-1-1527-en.html
URL: http://ijcm.ir/article-1-1527-en.html
Abstract: (1629 Views)
Palang Dar gabbrodioritic intrusion cropped out in about 30 Km NE of Damghan in the eastern part of the Alborz structural unit. In this area a few small-scale gabbrodioritic intrusions and diabasic dikes with Middle Jurassic age intruded into shale, sandstones and limestones of Shemshak Formation. Emplacement of this intrusion into host rocks are associated with contact metamorphism and formation of marble. Field observation and petrography indicate evidences of fractional crystallization from olivine-gabbro to gabbro, pegmatoid gabbro and diorite. Olivine, clinopyroxene (augite), plagioclase, hornblende and biotite (essential minerals), rutile, sphene, apatite, magnetite and zircon (accessory minerals), chlorite, calcite, epidote, secondary sphene and iron oxides (secondary minerals) found in these gabbrodiorites and fractionated members. These rocks have alkaline to calc-alkaline nature and based on discrimination tectonic setting diagrams, they plotted in the domain of basalt in relation to intracontinental extensional setting (back arc basins). Evaluations of REE diagrams and spider diagrams which normalized to chondrite and primary mantle (in respectively) indicate that the studied rocks enriched in light rare earth elements (LREEs) and large ion lithophile elements (LILEs), and depleted in heavy rare earth elements (HREEs) and high field strength elements (HFSEs). Based on geochemical and petrogenetical studies, alkaline-calc-alkaline magma formed the Palang Dar gabbrodiorites from low rate partial melting (about 10 percent) of a metasomatized subcontinental lithospheric mantle with original garnet peridotitic nature in nearly 100 to 110 Km depth and in intracontinental extensional setting (back arc basin). Geochemical evidences indicated magma forming of Palang Dar gabbrodiorite contaminated with upper crustal during it’s ascend and emplacement. These magmatic activities had been a part of magmatic activities in relation to synchronous with extension and extent of Jurassic back arc basin of Alborz.
References
1. [1] Alavi M., Salehi Rad R., "Geological map of Damghan sheet, scale 1:100000". Geological Survey of Iran, (1993).
2. [2] Salehi Rad R., "Geological map of Gorgan sheet, scale 1:1250000". Geological Survey of Iran, (1993).
3. [3] Hossani A., "The study of planet fossils of Shemshak formation in Tazareh region. M.Sc. thesis, (2001), Faculty of Earth Sciences, Tehran University, Tehran, Iran.
4. [4] Mirbagheri R., "The stratigraphic sequence of Shemshak formation in Khoshyailagh. M.Sc. thesis", (2007), Faculty of Earth Sciences, Tehran University, Tehran, Iran.
5. [5] Moghaddasi S., "Petrology, petrogenesis and stratigraphy of Jurassic volcanic rocks in east Alborz". M.Sc. thesis, (2003), Faculty of Earth Sciences, Shahrood University of Technology, Shahrood, Iran.
6. [6] Jamshidi Kh., "Investigation of magmatism of base of Shemshak formation, east of Alborz zone". M.Sc. thesis, (2007), Faculty of Earth Sciences, Shahrood University of Technology, Shahrood, Iran.
7. [7] Stocklin J., "Structural history and tectonics of Iran, A review". American Association Petrol. Geology, (1968) 7: 1229-1258.
8. [8] Winchester J.A., Floyed P.A., "Geochemical discrimination of different magma series and their differentiation products using immobile elements". Chem. Geol., (1977) 20, 325-342. [DOI:10.1016/0009-2541(77)90057-2]
9. [9] Debon F., Le Fort P., "A Chemical-Mineralogical Classification of Common Plutonic Rocks and Associations". Transactions of the Royal Society of Edinburgh: Earth Sciences, (1983) 73, 135-149. [DOI:10.1017/S0263593300010117]
10. [10] Peccerillo A., Taylor S.R., "Geochemistry of Eocene calc-alkaline volcanic rocks from the Kastamoun area, North Turkey". Journal Contribution to Mineralogy and Petrology, (1976) 58, pp63-81. [DOI:10.1007/BF00384745]
11. [11] Nakamura N., "Determination of REE, Ba, Fe, Mg, Na and K in carbonaceous and ordinary chondrites", Geochim. Cosmochim. Acta, (1974) 38, pp 757-775. [DOI:10.1016/0016-7037(74)90149-5]
12. [12] Rollinson H.R. "Using geochemical data: evaluation, presentation, interpretation". Longman, Singapore, (1993) 397 pp.
13. [13] Sun S.S., McDonough W.F., "Chemical and isotopic systematics of oceanic basalts: implications for mantle composition and processes". Geological Society of London, special publications, (1989) 42, pp 313-345. [DOI:10.1144/GSL.SP.1989.042.01.19]
14. [14] Wilson M., Igneous petrogenesis, a global tectonic approach. Unwin Hyman, London. (1989) pp466. [DOI:10.1007/978-1-4020-6788-4]
15. [15] Pearce J.A., Cann J.R., "Tectonic setting of basic volcanic rocks determined using trace element analyses". Earth and Planet.Sci, Lett, (1973) 19, pp 290-300. [DOI:10.1016/0012-821X(73)90129-5]
16. [16] Wood D. A., Joron J. L., Treuil M., "Are-appraisal of the use of elements to classify and discriminate between magma series erupted in d tectonic settings". Journal of Earth Planet. Sci. Lett., (1979) 45, pp 326-336. [DOI:10.1016/0012-821X(79)90133-X]
17. [17] Bagas, L., Bierlein, F. P., English, L., Anderson, J. A., Maidment, D., & Huston, D. L., "An example of a Paleoproterozoic back-arc basin: Petrology and geochemistry of the ca. 1864Ma Stubbins Formation as an aid towards an improved understanding of the Granites-Tanami Orogen, Western Australia". Precambrian Research, (2008) 166 (1), 168-184. [DOI:10.1016/j.precamres.2007.06.025]
18. [18] Shervais J.W., "Ti-V plots and the petrogenesis of modern and ophiolitic lavas". Earth Planet. Sci. Lett, (1982) 59, pp 101-118. [DOI:10.1016/0012-821X(82)90120-0]
19. [19] Pearce J.A., "Geochemical fingerprinting of oceanic basalts with applications to ophiolite classification and the search for Archean oceanic crust". Lithos, (2008) 100, pp 14-48. [DOI:10.1016/j.lithos.2007.06.016]
20. [20] Agrawal, S., Guevara, M., Verma, S.P., "Tectonic discrimination of basic and ultrabasic volcanic rocks through log-transformed ratios of immobile trace elements". International Geology Review, (2008)50, 1057-1079. [DOI:10.2747/0020-6814.50.12.1057]
21. [21] Coban H., "Basalt magma genesis and fractionation in collision and extension-related provinces: A comparison between eastern, central western Anatolia". Earth Sciences review, (2007) 80, 219-238. Goss A.R., and Kay [DOI:10.1016/j.earscirev.2006.08.006]
22. [22] Wang K, Plank T, Walker J.D. and Smith E.I., "A mantle melting profile across the basin and range, SW USA". Journal of Geophysical Research ECV, (2002) 5, pp 1-21. [DOI:10.1029/2001JB000209]
23. [23] Boynton W.V., "Cosmochemistry of the rare earth elements: meteorite studies. In: Henderson, P. (Ed), Rare Earth Element Geochemistry". Elsevier, Amsterdam, (1984) pp 63-114. [DOI:10.1016/B978-0-444-42148-7.50008-3]
24. [24] Kuepouo G.T., Chouankoue J.P., Nagao T. and Sato H., "Transitional-tholeiitic basalts in the Tertiary Bana volcano-plutonic complex, Cameroon Line". Journal of African Earth Sciences. (2006) 45, pp 318-332. [DOI:10.1016/j.jafrearsci.2006.03.005]
25. [25] Ellam R.M., "Lithospheric thickness as a control on basalt geochemistry". Geology, (1992) 20 pp 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]
26. [26] Ghasemi H., Rostami Hossuri M., Sadeghian M., "Basic magmatism in extensional back-arc basin of the Lower-Middle Jurassic at the Northern edge of Central Iran, South of Eastern Alborz zones, Shahrood-Damghan. Scientific Quarterly Journal, GEOSCIENCES, 2018, Vol. 27, No. 107, p.123-136.
27. [27] Baluchi S., "Petrology, geochemistry and isotope geology of Jandagh-Arousan metamorphic-igneous complex. Ph.D. Thesis in petrology", Shahrood University of Technology, Faculty of Earth Sciences, 2019, pp 403.
28. [28] Veiskarami M., Sadeghian M., Ghasemi H., Shah Vali Kuh Shouri P., Zhai. M., "Majerad gabbrodiorites in the southeast of Shahrood: An evidence to the starting of opening of the supra-subduction basin of the Sabzevar Neotethyian branch in the middle Jurassic". Iranian Society of Crystallography and Mineralogy, 2020, In press. [DOI:10.29252/gnf.5.2.293]
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