PL EN


Preferences help
enabled [disable] Abstract
Number of results
2016 | 130 | 1 | 17-22
Article title

Geochemical Characters of the Gabbroic Rocks in Ophiolite Sequences of North Hatta Area, United Arab Emirates

Content
Title variants
Languages of publication
EN
Abstracts
EN
The ophiolite sequences of UAE, as a part of Oman ophiolite, represent both, mantle section and crustal section. The crustal part of the ophiolite sequences, consists of a layered series (cumulate peridotites and gabbros). This paper aims to overview geochemical character and some mechanical and physical features of the gabbroic rocks. The gabbros comprise troctolite, olivine gabbro, normal gabbro, gabbronorite, and uralitized gabbros. Geochemical features indicate that they are tholeiitic and are formed in an arc-related tectonic setting. On NMORB normalized pattern of gabbros, the HFS-elements (P, Zr, Sm, Ti, and Y) show a flat pattern parallel to NMORB. In contrast, the LIL-elements (Rb, Ba, Th, Sr) are relatively more enriched than NMORB. The enrichment of LIL-elements over the HFS-elements and the depletion of Nb relative to other HFS-elements suggest involvement of subduction component in the depleted mantle source, and suggest that these rocks were formed in a supra-subduction zone tectonic setting.
Keywords
EN
Publisher

Year
Volume
130
Issue
1
Pages
17-22
Physical description
Dates
published
2016-07
Contributors
author
  • United Arab Emirates University, College of Science, Department of Geology, Al-Ain, United Arab Emirates
  • United Arab Emirates University, College of Science, Department of Geology, Al-Ain, United Arab Emirates
author
  • United Arab Emirates University, College of Science, Department of Geology, Al-Ain, United Arab Emirates
References
  • [1] A.H.F. Robertson, A.E.S. Kemp, D.C. Rex, C.D. Blome, Geology. Soc., London, Special Publ. 49, 285 (1990), doi: 10.1144/GSL.SP.1992.049.01.18
  • [2] R.M. Bayoumi, M.T.S. Heikel, in: UAE 1st Int. Conf. Geol. Arab World, Cairo University 1992, p. 449
  • [3] Anonymous, Penrose field conference on ophiolites: Geotimes, vol. 17, 1972, p. 24
  • [4] P.B. Kelemen, G. Hirth, N. Shimizu, M. Spiegelman, H.J.B. Dick, Philos. Trans. R. Soc. A 355, 283 (1997), doi: 10.1098/rsta.1997.0010
  • [5] K.W. Glennie, M.G.A. Boeuf, M.W. Hughes Clarke, M. Moody-Stuart, W.F.H. Plan, B.M. Reinhardt, The geology of the Oman Mountains, Verhandelingen Koninklijke Nederland Geologisch Mijnbouwkundig Genootschap, 1974, p. 432
  • [6] A.F. Osman, U.A.E. Journal Faulty Science 12, 1 (2002)
  • [7] L. Streckeisen, Monatshefte 1, 1 (1976)
  • [8] R.G. Coleman, Ophiolites, Springer-Verlag, Berlin-Heidelberg 1977, p. 229
  • [9] M.J. Le Bas, R.W. Le Maitre, A. Streckeisen, B. Zanetin, J. Petrol. 27, 745 (1986), doi: 10.1093/petrology/27.3.745
  • [10] S.E. Humphris, G. Thompson, Geochim. Cosmochim. Acta 42, 127 (1978), doi: 10.1016/0016-7037(78)90222-3
  • [11] H. Staudigel, in: Treatise on geochemistry, Vol. 3, Eds. H.D. Holland, K.K. Turekian, Elsevier, Amsterdam 2003, p. 511; J.C. Gamble, Ph.D. Thesis, Geology, University of Illinois, Urbana 1971
  • [12] S.S. Sun, W.F. McDonough, in: Magmatism in the ocean basins, Vol. 42, Eds. A.D. Saunders, M.J. Norry, Geological Society of London, London 1989, p. 313
  • [13] D.A. Wood, Earth Planet. Sci. Lett. 50, 11 (1980), doi: 10.1016/0012-821X(80)90116-8
  • [14] J.A. Pearce, S.J. Lippard, A. Roberts, Geology. Soc., London, Special Publ. 16, 77 (1984), doi: 10.1144/GSL.SP.1984.016.01.06
  • [15] A.D. Saunders, J. Tarney, in: Ocean Basalts, Blackie, Ed. P. Floyd, London 1991, p. 219
  • [16] F.H. Mohamed, Geochemical and petrological characteristic the gabbroic rocks of the Massafi-Fujairah area, northern UAE, Internal report, UAE University, 2001
  • [17] T.N. Irvine, W.R.A. Baragar, Can. J. Earth Sci. 8, 523 (1971), doi: 10.1139/e71-055
  • [18] T.H. Pearce, B.E. Gorman, T.C. Birkett, Earth Planet. Sci. Lett. 24, 419 (1975), doi: 10.1016/0012-821X(75)90149-1
  • [19] G.A. Jenner, G.R. Dunning, J. Malpas, M. Brown, T. Brace, Can. J. Earth Sci. 28, 1635 (1991), doi: 10.1139/e91-146
  • [20] J.A. Pearce, J.R. Cann, Earth Planet. Sci. Lett. 19, 290 (1973), doi: 10.1016/0012-821X(73)90129-5
  • [21] J.S. Beard, Geology 14, 848 (1986), doi: 10.1130/0091-7613(1986)14%3C848:CMOACG%3E2.0.CO;2
Document Type
Publication order reference
Identifiers
YADDA identifier
bwmeta1.element.bwnjournal-article-appv130n1005kz
JavaScript is turned off in your web browser. Turn it on to take full advantage of this site, then refresh the page.