Dikes in the north of Saveh are located in a region with an area of approximately 200 square kilometers, in a distance of approximately 100 kilometers south of Tehran. Dikes mentioned in terms of petrological composition, are divided into two categories: alkaline and intermediate to acidic. Alkaline dikes include: andesitic basalt and andesite and intermediate to acidic dikes include: trachyte and trachyandesite. In terms of geochemical, dikes in the north of Saveh have a dual nature of alkaline and calc-alkaline. Both groups are derived from more enrichment source than primitive mantle. Despite similarity of pattern of both groups, varieties of alkaline having less silica, in the elements Sr, Ti, Nb and Ta show more enrichment and in the elements Hf, Rb, Th, K show less enrichment than varieties of calc-alkaline.
KeywordsSwarm DikesAlkaline and Calc-AlkalineSavehIran
Ernst, R.E., Buchan, K.L. and Palmer, H.C. )1995( Giant Dike Swarms, Characteristics, distrIbution and Geotectonic Applications. In: Baer, G. and Heimann, A., Eds., Physics and Chemistry of Dikes, Rotterdam, Balkema, 321.
Hou, G.T. (2012) Mechanism for Three Types of Mafic Dyke Swarms. Geoscience Frontiers, 3, 217-223. http://dx.doi.org/10.1016/j.gsf.2011.10.003
Hou, G.T., Kusky, T.M., Wang, C.C. and Wang, Y.X. (2010) Mechanics of the Giant Radiating Mackenzie Dyke Swarm: A Palaeostress Field Modeling. Journal of Geophysical Research, 115, 1-14. http://dx.doi.org/10.1029/2007JB005475
Bazoobandi, M.H., Arian, M.A., Emami, M.H., Tajbakhsh, Gh.R. and Yazdi, S. (2015) Geodynamics of Dikes in North of Saveh. Open Journal of Ecology, 5, 452-459. http://dx.doi.org/10.4236/oje.2015.59037
Ghalamghash, J. (1998) 1:100000 Scaled Map of Saveh. Geological Survey of Iran.
Orang, K. (2014) Inversion Evidence of Sliding Vector in Kooshk-Nosrat Fault, North of Saveh. Journal of Earth Sciences, Geological Survey of Iran.
Irvine, T.N. and Baragar, W.R.A. (1971) A Guide to the Chemical Classification of the Common Volcanic Rocks. Canadian Journal of Earth Sciences, 8, 523-548. http://dx.doi.org/10.1139/e71-055
Cox, K.G., Bell, J.D. and Pankhurst, R.J. (1979) The Interpretation of Igneous Rocks. George Allen & Unwin. http://dx.doi.org/10.1007/978-94-017-3373-1
Sun, S.S. and McDonough, W.F. (1989) Chemical and Isotopic Systematics of Oceanic Basalts: Implications for Mantle Composition and Processes. In: Saunders, A.D. and Norry, M.J., Eds., Magmatism in Ocean Basins, Geological Society of London, Special Publication, 313-345. http://dx.doi.org/10.1144/GSL.SP.1989.042.01.19
Pearce, J.A. (1982) Trace Element Characteristics of Lavas from Destructive Plate Boundaries. In: Thorpe, R.S., Ed., Andesites: Orogenic Andesites and Related Rocks, John Wiley and Sons, 252-548.
Bradshaw, T.K. and Smith, E.I. (1994) Polygenetic Quaternary Volcanism at Crater Flat, Nevada. Journal of Volcanology and Geothermal Research, 63, 165-182. http://dx.doi.org/10.1016/0377-0273(94)90072-8
Smith, E.I., Sánchez, A., Walker, J.D. and Wang, K. (1999) Geochemistry of Mafic Magmas in the Hurricane Volcanic Field, Utah: Implications for Small and Large Scale Chemical Variability of the Lithospheric Mantle. Journal of Geology, 107, 433-448. http://dx.doi.org/10.1086/314355
Aydin, F., Karsli, O. and Chen, B. (2008) Petrogenesis of the Neogene Alkaline Volcanics with Implications for Post-Collisional Lithospheric Thinning of the Eastern Pontides, NE Turkey. Lithos, 104, 249-266. http://dx.doi.org/10.1016/j.lithos.2007.12.010
Aldanmaz, E., Koprubas, N., Gurer, O.F., Kaymakc, N. and Gourgaud, V.A. (2006) Geochemical Constraints on the Cenozoic, OIB-Type Alkaline Volcanic Rocks of NW Turkey: Implications for Mantle Sources and Melting Processes. Lithos, 86, 50-76. http://dx.doi.org/10.1016/j.lithos.2005.04.003
Aldanmaz, E., Yaliniz, M.K., Güctekin, A. and Goncüoglu, M.C. (2008) Geochemical Characteristics of Mafic Lavas from the Neotethyan Ophiolites in Western Turkey: Implications for Heterogeneous Source Contribution during Variable Stages of Ocean Crust Generation. Geological Magazine, 145, 37-54. http://dx.doi.org/10.1017/s0016756807003986
El-Bialy, M.Z. (2009) On the Pan-African Transition of the Arabian-Nubian Shield from Compression to Extension: The Post-Collision Dokhan Volcanic Suite of Kid-Malhak Region, Sinai, Egypt. Gondwana Research, 17, 26-43. http://dx.doi.org/10.1016/j.gr.2009.06.004
Liegeois, J.P., Navez, J., Hertogen, J. and Black, R. (1998) Contrasting Origin of Post-Collisional High-K Calc-Alkaline and Shoshonitic versus Alkaline and Peralkaline Granitoids. The Use of Sliding Normalization. Lithos, 45, 1-28. http://dx.doi.org/10.1016/S0024-4937(98)00023-1
Bonin, B. (2004) Do Coeval Mafic and Felsic Magmas in Post-Collisional to Within-Plate Regimes Necessarily Imply Two Contrasting, Mantle and Crustal, Sources? A Review. Lithos, 78, 1-24. http://dx.doi.org/10.1016/j.lithos.2004.04.042
Eyal, M., Litvinovsky, B., Jahn, B.M., Zanvilevich, A. and Katzir, Y. (2009) Origin and Evolution of Post-Collisional Magmatism: Coeval Neoproterozoic Calc-Alkaline and Alkaline Suites of the Sinai Peninsula. Chemical Geology, 269, 153-179. http://dx.doi.org/10.1016/j.chemgeo.2009.09.010
Keskin, M., Pearce, J.A. and Mitchell, J.G. (1998) Volcano-Stratigraphy and Geochemistry of Collision-Related Volcanism on the Erzurum-Kars Plateau, North Eastern Turkey. Journal of Volcanology and Geothermal Research, 85, 355-404. http://dx.doi.org/10.1016/S0377-0273(98)00063-8
Yilmaz, Y., Saroglu, F. and Guner, Y. (1987) Initiation of the Neomagmatism in East Anatolia. Tectonophyiscs, 134, 177-199. http://dx.doi.org/10.1016/0040-1951(87)90256-3
Fitton, J.G., James, D. and Leeman, W.P. (1991). Basic Magmatism Associated with Late Cenozoic Extension in the Western United States: Compositional Variations in Space and Time. Journal of Geophysical Research, 96, 13693-13712. http://dx.doi.org/10.1029/91JB00372
Chen, W. and Arculus, R.J. (1995) Geochemical and Isotopic Characteristics of Lower Crustal Xenoliths, San Francisco Volcanic Field, Arizona, USA. Lithos, 110, 99-119. http://dx.doi.org/10.1016/0024-4937(95)00018-6
Weaver, B.L., Wood, D.A., Tarney, J. and Joron, J. (1987) Geochemistry of Ocean Island Basalt from the South Atlantic: Ascension, Bouvet, St. Helena, Gough and Tristan da Cunda. In: Fitton, J.G. and Upton, B.G.J., Eds., Alkaline Igneous Rocks, The Geological Society, London, Special Publication, 253-267.
Ghasemi Barghi, A. (2005) Petrology and Geochemistry of the Eocene Volcanic of Northwest of Meshkin Shahr. PhD Thesis, Shahid Beheshti University, Tehran, 336 p.
Condie, K.C. and Crow, C. (1990) Early Precambrian Within-Plate Basalts from the Kaapvaal Craton in Southern Africa: A Case for Contaminated Komatiites. The Journal of Geology, 98, 100-107. http://dx.doi.org/10.1086/629378
Dilek, Y., Imamverdiyev, N. and Altunkaynak, S. (2009) Geochemistry and Tectonics of Cenozoic Volcanism in the Lesser Caucasus (Azerbaijan) and the Peri-Arabian Region: Collision-Induced Mantle Dynamics and Its Magmatic Fingerprint. International Geology Review, 1-43.