New evidence for a volcanic arc on the western margin of a rifting Rodinia from ultramafic intrusions in the Andriamena region, north-central Madagascar

Earth and Planetary Science Letters

Volumn 293, Issue 1-2, 2010, Pages 42-53

  Bybee, G M ^a   Ashwal, L D ^a   Wilson, A H ^a  

^a UNIVERSITY OF THE WITWATERSRAND   (South Africa)

Author keywords

Alaskan Uralian; Arc; Madagascar; Platinum group elements; Rodinia; Ruthenium

Indexed keywords

ARCHAEAN; CONVERGENT MARGIN; EASTERN EDGE; GABBROIC ROCKS; HARZBURGITES; MADAGASCAR; MOZAMBIQUE; NEOPROTEROZOIC; ORTHOPYROXENE; PLATINUM GROUP ELEMENTS; PLUTONS; RODINIA; RODINIA SUPERCONTINENT; TECTONIC SETTINGS; ULTRAMAFIC BODY; VOLCANIC ARC; VOLCANIC LITHOLOGY;

EUROPIUM; IGNEOUS ROCKS; LITHOLOGY; METEORITES; OCEANOGRAPHY; PALLADIUM; PLATINUM; RUTHENIUM; TECTONICS; VOLCANOES;

CAVITY RESONATORS;

CONTINENTAL ARC; GRANITOID; IGNEOUS INTRUSION; ISLAND ARC; PLATINUM GROUP ELEMENT; PLUTON; PROTEROZOIC; RIFTING; RODINIA; RUTHENIUM; SUBDUCTION; TECTONIC SETTING;

ANDRIAMENA; INDIAN OCEAN; MADAGASCAR; MAHAJANGA; MOZAMBIQUE CHANNEL; SEYCHELLES;

EID: 77950340713     PISSN: 0012821X     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.epsl.2010.02.017     Document Type: Article

References (52)

1. Ahmed A.H., Arai S. Unexpectedly high-PGE chromitites from the deeper mantle section of the northern Oman ophiolite and its tectonic implications. Contrib. Min. Pet. 2002, 143:263-278.
2. Ahmed A.H., Arai S., Abdel-Aziz Y.M., Ikenne M., Rahimi A. Platinum-group elements distribution and spinel composition in podiform chromitites and associated rocks from the upper mantle section of the Neoproterozoic Bou Azzer ophiolite, Anti-Atlas, Morocco. J. Afr. Earth Sci. 2009, 55:92-104.
3. Anders E., Grevesse N. Abundances of the elements: meteoritic and solar. Geochim. Cosmochim. Acta 1989, 53:197-214.
4. Ashwal L.D., Tucker R.D. Geology of Madagascar: a brief outline. Gondwana Res. 1999, 2:335-339.
5. Ashwal L.D., Demaiffe D., Torsvik T.H. Petrogenesis of Neoproterozoic granitoids and related rocks from the Seychelles: the case for an Andean-type arc origin. J. Petrol. 2002, 43:45-83.
6. Barnes S.J., Fiorentini M.L. Iridium, ruthenium and rhodium in komatiites: evidence for iridium alloy saturation. Chem. Geol. 2008, 257:44-58.
7. Barnes S.-J., Maier W.D. Platinum-group element distributions in the Rustenberg Layered Suite of the Bushveld Complex, South Africa. CIM Spec. 2002, Vol. 54:669-719. L.J. Cabri (Ed.).
8. Barnes S.-J., Naldrett A.J., Gorton M.P. The origin of the fractionation of platinum-group elements in terrestrial magmas. Chem. Geol. 1985, 53:303-323.
9. Batanova V.G., Brügmann G.E., Bazylev B.A., Sobolev A.V., Kamenetsky V.S., Hofmann A.W. Platinum-group element abundances and Os isotope composition of mantle peridotites from the Mamonia complex, Cyprus. Chem. Geol. 2008, 248:195-212.
10. Borisov A., Palme H. Solubility of iridium in silicate melts: new data from experiments with Ir10Pt90 alloys. Geochim. et Cosmochim. Acta 1995, 59:481-485.
11. Brenan J.M., Andrews D. High-temperature stability of laurite and Ru-Os-Ir alloy and their role in PGE fractionation in mafic magmas. Can. Min. 2001, 39:341-360.
12. Brenan J.M., McDonough W.F., Ash R. An experimental study of the solubility and partitioning of iridium, osmium and gold between olivine and silicate melt. Earth Planet. Sci. Letters 2005, 237:855-872.
13. Büchl A., Brügmann G., Batanova V.G., Münker C., Hofmann A.W. Melt percolation monitored by Os isotopes and HSE abundances: a case study from the mantle section of the Troodos Ophiolite. Earth Planet. Sci. Letters 2002, 204:385-402.
14. Chen G., Xia B. Platinum-group elemental geochemistry of mafic and ultramafic rocks from the Xigaze ophiolite, southern Tibet. J. Asian Earth Sci. 2008, 32:406-422.
15. Collins A.S., Razakamanana T., Windley B.F. Neoproterozoic extensional detachment in central Madagascar: implications for collapse of the East African Orogen. Geol. Mag. 2000, 137:97-99.
16. de Wit M.J. Madagascar: heads it's a continent, tails it's an island. Ann. Rev. Earth Planet. Sci. 2003, 31:213-248.
17. Dunn T., Sen C. Mineral/matrix partition coefficients for orthopyroxene, plagioclase and olivine in basaltic to andesitic systems: a combined analytical and experimental study. Geochim. Cosmochim. Acta 1994, 58:717-733.
18. Garuti G., Fershtater G., Bea F., Montero P., Pushkarev E.V., Zaccarini F. Platinum-group elements as petrological indicators in mafic-ultramafic complexes of the central and southern Urals: preliminary results. Tectonophysics 1997, 276:181-194.
19. Garuti G., Pushkarev E.V., Zaccarini F., Cabella R., Anikina E. Chromite composition and platinum-group mineral assemblage in the Uktus Uralian-Alaskan-type complex (Central Urals, Russia). Min. Depos. 2003, 38:312-326.
20. Godal B., Barnes S.-J. Platinum-group elements in sulphide minerals and the whole rocks of the J-M Reef (Stillwater Complex): Implication for the formation of the reef. Chem. Geol. 2008, 248:272-294.
21. Goncalves P., Nicollet C., Lardeaux J.-M. Finite strain pattern in the Andriamena unit (north-central Madagascar): evidence for late Neoproterozoic-Cambrian thrusting during continental convergence. Precam. Res. 2003, 123:135-157.
22. Guerrot C., Cocherie A., Ohnenstetter M. Origin and evolution of the West Andriamena Pan African mafic-ultramafic complexes in Madagascar as shown by U-Pb, Nd isotopes and trace elements constraints. Terra Abstr. 1993, 5:387.
23. Handke M.J., Tucker R.D., Ashwal L.D. Neoproterozoic continental arc magmatism in west-central Madagascar. Geology 1999, 27:351-354.
24. Helmy H.M. Cu-Ni-PGE mineralization in the Genina Gharbia mafic-ultramafic intrusion, eastern desert, Egypt. Can. Min. 2004, 42:351-370.
25. Helmy H.M., Mogessie A. Gabbro Akarem, Eastern Desert, Egypt: Cu-Ni-PGE mineralization in a concentrically zoned mafic-ultramafic complex. Min. Depos. 2001, 36:58-71.
26. Ismail S.A., Mirza T.M., Carr P.F. Platinum-group elements geochemistry in podiform chromitites and associated peridotites of the Mawat ophiolite, northeastern Iraq. J. Asian Earth Sci. 2010, 37:31-41.
27. Johan Z. Alaskan-type complexes and their platinum-group element mineralisation. CIM Spec. 2002, Vol. 54:669-719. L.J. Cabri (Ed.).
28. Kröner A., Hegner E., Collins A.S., Windley B.F., Brewer T.S., Razakamanana T., Pidgeon R.T. Age and magmatic history of the Antananarivo Block, central Madagascar, as derived from zircon geochronology and Nd isotopic systematics. Amer. J. Sci. 2000, 300:251-288.
29. Le Roux A.P., Späth A., Zartman R.E. Lithospheric thickness beneath the southern Kenya Rift: implications from basalt geochemistry. Contrib. Min. Petrol. 2001, 142:89-106.
30. Leblanc M. Chromitite and ultramafic rock compositional zoning through a Paleotransform Fault, Poum, New Caledonia. Econ. Geol. 1995, 90:2028-2039.
31. Li Z.X., Bogdanova S.V., Collins A.S., Davidson A., De Waele B., Ernst R.E., Fitzsimons I.C.W., Fuck R.A., Gladkochub D.P., Jacobs J., Karlstrom K.E., Lu S., Natapov L.M., Pease V., Pisarevsky S.A., Thrane K., Vernikovsky V. Assembly, configuration, and break-up history of Rodinia: a synthesis. Precam. Res. 2008, 160:179-210.
32. McDonald I. Platinum-group element and sulphide mineralogy in ultramafic complexes at western Andriamena, Madagascar. Appl. Earth Sci.: IMM Trans. B 2008, 117:1-10.
33. McDonald I., Ohnenstetter D., Ohnenstetter M., Vaughan D.J. Palladium oxides in ultramafic complexes near Lavatrafo, Western Andriamena, Madagascar. Min. Mag. 1999, 63:345-352.
34. Naldrett A.J. Magmatic Sulphide Deposits 2004, 727. Springer-Verlag.
35. Naldrett A.J., Wilson A., Kinnaird J., Chunnett G. PGE tenor and metal ratios within and below the Merensky Reef, Bushveld Complex: implications for its genesis. J. Pet. 2009, 50:625-659.
36. Noble J.A., Taylor H.P. Correlation of the ultramafic complexes of southeastern Alaska with those of other parts of North America and the world. 21st International Geological Congress Report, Part XIII 1960, 188-197.
37. Ohnenstetter M. The mafic-ultramafic intrusions from the Lavatrafo area, Andriamena Unit, Madagascar and related Cr and PGE mineralisation. Atelier de coordination des programmes de revision de la cartographie geologique et miniere de Madagascar 2005, 33.
38. Pederson R.-B., Johannesen G.M., Boyd R. Stratiform platinum-group element mineralizations in the ultramafic cumulates of the Leka Ophiolite Complex, Central Norway. Econ. Geol. 1993, 88:782-803.
39. Pettigrew N.T., Hattori K.H. The Quetico Intrusions of Western Superior Province: neo-Archean examples of Alaskan/Ural-type mafic-ultramafic intrusions. Precam. Res. 2006, 149:21-42.
40. Rambeloson R. The Malagasy Shield. Greenstone Belts 1997, 636-639. Claredon, Oxford. M.J. de Wit, L.D. Ashwal (Eds.).
41. Stephens W.E., Jemielita R.A., Davies D. Evidence for ca. 750Ma intra-plate extensional tectonics from granite magmatism on the Seychelles: new geochronological data and implications for Rodinia reconstructions and fragmentation. Terra Nova 1997, 9:166.
42. Taylor H.P. The zoned ultramafic complexes of south-eastern Alaska. Ultramafic and Related Rocks 1967, 97-121. New York-London-Sydney, J Willey and Sons Inc. P.J. Wyllie (Ed.).
43. Taylor H.P., Noble J.A. Origin of the ultramafic complexes of southeastern Alaska. In: Wilson, H.D.B. (Ed.), magmatic ore deposits. Econ. Geol. Mono. 1960, 4:209-230.
44. Thakurta J., Ripley E.M., Li C. Pre-requisites for sulphide-poor PGE and sulphide-rich Cu-Ni-PGE mineralisation in Alaskan-type complexes. Jour. Geol. Soc. India 2008, 72:611-622.
45. Torsvik T.H., Smethurst M.A., Meert J.G., Van der Voo R., McKerrow W.S., Brasier M.D., Sturt B.A., Walderhaug H.J. Continental break-up and collision in the Neoproterozoic and Palaeozoic - a tale of Baltica and Laurentia. Earth Sci. Rev. 1996, 40:229-258.
46. Torsvik T.H., Ashwal L.D., Tucker R.D., Eide E.A. Neoproterozoic geochronology and palaeogeography of the Seychelles microcontinent: the India link. Precam. Res. 2001, 110:47-59.
47. Torsvik T.H., Carter L.M., Ashwal L.D., Bhushan S.K., Pandit M.K., Jamtveit B. Rodinia refined or obscured - palaeomagnetism of the Malani Igneous Suite (NW India). Precam. Res. 2001, 108:319-333.
48. Tucker R.D., Ashwal L.D., Handke M.J., Hamilton M.A., Le Grange M., Rambeloson R.A. U-Pb geochronology and isotope geochemistry of the Archaean and Proterozoic rocks of North-Central Madagascar. J. Geol. 1999, 107:135-153.
49. Tucker R.D., Ashwal L.D., Torsvik T.H. U-Pb geochronology of Seychelles granitoids: a Neoproterozoic continental arc fragment. Earth Planet. Sci. Letters 2001, 187:27-38.
50. Wilson A.H., Chunnett G. Trace element and platinum group element distributions and the genesis of the Merensky Reef, Western Bushveld Complex, South Africa. J. Petrol. 2006, 47:2369-2403.
51. Woodland S.J., Pearson D.G., Thirlwall M.F. A platinum group element and Re-Os isotope investigation of siderophile element recycling in subduction zones: comparison of Grenada, Lesser Antilles Arc, and the Izu-Bonin Arc. J. Petrol. 2002, 43:171-198.
52. Zaccarini F., Pushkarev E., Garuti G. Platinum-group element mineralogy and geochemistry of chromitites of the Kluchevskoy ophiolite complex, central Urals (Russia). Ore Geol. Rev. 2008, 33:20-30.