Petrogenesis of an 800 m lava sequence in eastern Uruguay: Insights into magma chamber processes beneath the Parana flood basalt province

Journal of Geodynamics

Volumn 28, Issue 4-5, 1999, Pages 471-487

  Turner, S P ^a   Kirstein, L A ^b   Hawkesworth, C J ^a   Peate, D W ^c   Hallinan, S ^d   Mantovani, M S M ^e  

^a OPEN UNIVERSITY   (United Kingdom)

^b VU UNIVERSITY AMSTERDAM   (Netherlands)

^c DANISH LITHOSPHERE CENTRE   (Denmark)

^d Viale Abruzzi 17 20131   (Italy)

^e UNIVERSITY OF SÃO PAULO   (Brazil)

Author keywords

[No Author keywords available]

Indexed keywords

FLOOD BASALT; MAGMA CHAMBER; PETROGENESIS;

URUGUAY;

EID: 0343820069     PISSN: 02643707     EISSN: None     Source Type: Journal    
DOI: 10.1016/S0264-3707(99)00022-8     Document Type: Article

References (44)

1. Arndt N.T., Christensen U. The role of lithospheric mantle in continental flood volcanism: thermal and geochemical constraints. Journal of Geophysical Research. 97:1992;10,967-10,981.
2. Bedini R.M., Bodinier J-L., Dautria J-M., Morten L. Evolution of LILE-enriched small melt fractions in the lithospheric mantle: a case study from the East African Rift. Earth and Planetary Science Letters. 153:1997;67-83.
3. Bergman S.C. Lamproites and other potassium-rich igneous rocks: a review of their occurrence, mineralogy and geochemistry. Fitton J.G., Upton B.G.J. Alkaline Igneous Rocks. Geological Society Special Publication, London. 30:1987;103-190.
4. Defant J.M., Nielsen R.L. Interpretation of open system petrogenetic processes: phase equilibria constraints on magma evolution. Geochimica et Cosmochimica Acta. 54:1990;87-102.
5. DePaolo D.J. Trace element and isotopic effects of combined wallrock assimilation and fractional crystallization. Earth and Planetary Science Letters. 53:1981;189-202.
6. Ellam R.M., Cox K.G. An interpretation of Karoo picrite basalts in terms of interaction between asthenospheric magmas and the mantle lithosphere. Earth and Planetary Science Letters. 105:1991;330-342.
7. Ellam R.M., Carlson R.W., Shirey S.B. Evidence from Re-Os isotopes for plume-lithosphere mixing in Karoo flood basalt genesis. Nature. 359:1992;718-721.
8. Erlank A.J., Marsh J.S., Duncan A.R., Miller R.McG, Hawkesworth C.J., Betton P.J., Rex D.C. Geochemistry and petrogenesis of the Etendeka volcanic rocks from South West Africa/Namibia. Geolological Society of South Africa Special Publication. 13:1984;195-246.
9. Ewart A., Milner S.C., Armstrong R.A., Duncan A.R. Etendeka volcanism of the Goboboseb Mountains and Messum Igneous Complex, Namibia. Part 1: geochemical evidence of Early Cretaceous Tristan plume melts and the role of crustal contamination in the Paraná-Etendeka. Journal of Petrology. 39:1998;191-225.
10. Fraser K.J., Hawkesworth C.J., Erlank A.J., Mitchell R.H., Scott-Smith B.H. Sr, Nd and Pb isotope and minor element geochemistry of lamproites and kimberlites. Earth and Planetary Science Letters. 76:1985;57-70.
11. Gallagher K., Hawkesworth C.J. Dehydration melting and the generation of continental flood basalts. Nature. 358:1992;57-59.
12. Garland F., Hawkesworth C.J., Mantovani M.S.M. Description and petrogenesis of the Paraná rhyolites, southern Brazil. Journal of Petrology. 36:1995;1193-1227.
13. Hart S.R. A large-scale isotope anomaly in the Southern Hemisphere. Nature. 309:1984;753-757.
14. Hawkesworth C.J., Mantovani M.S.M., Peate D.W. Lithosphere remobilisation during Parana magmatism. Cox K.G., Menzies M.A. Oceanic and Continental Lithosphere: Similarities and Differences. Journal of Petrology Special Volume. 1988;205-223.
15. Hergt J.M., Peate D.W., Hawkesworth C.J. The petrogenesis of Mesozoic Gondwana low Ti flood basalts. Earth and Planetary Science Letters. 105:1991;134-148.
16. Hofmann A.W., Jochum K.P., Seufert M., White W.M. Nb and Pb in oceanic basalts: new constraints on mantle evolution. Earth and Planetary Science Letters. 79:1986;33-45.
17. Humphris S.E., Thompson G. Geochemistry of rare earth elements in basalts from the Walvis Ridge: implications for its origin and evolution. Earth and Planetary Science Letters. 66:1983;223-242.
18. Hunter R.H., Sparks R.S.J. The differentiation of the Skaergaard Intrusion. Contributions to Mineralogy and Petrology. 95:1987;451-461.
19. Huppert H.E., Sparks R.S.J. The generation of granitic magmas by intrusion of basalt into continental crust. Journal of Petrology. 29:1988;599-624.
20. Kirstein, L.A., 1997. Magmatism in southern Uruguay and the early rifting of the South Atlantic. PhD thesis. Open University UK, 376 p.
21. Kirstein, L.A., Peate, D.W., Hawkesworth, C.J., Turner, S.P., Harris, C., Mantovani, M.S.M., 1999. Early Cretaceous basaltic and rhyolitic magmatism in southern Uruguay associated with the opening of the South Atlantic. Journal of Petrology (submitted).
22. le Roex A.P., Cliff R.A., Adair B.J.I. Tristan da Cunha, South Atlantic: geochemistry and petrogenesis of a basanite-phonolite lava series. Journal of Petrology. 31:1990;779-812.
23. Mantovani M.S.M., Hawkesworth C.J., Basei M.A.S. Nd and Pb isotope studies bearing on the crustal evolution of S.E. Brazil. Revista Brasileira de Geociências. 17:1987;263-268.
24. Mantovani M.S.M., Hawkesworth C.J. An inversion approach to assimilation and fractional crystallisation processes. Contributions to Mineralogy and Petrology. 105:1990;289-302.
25. May, S.E., 1990. Pan-African magmatism and regional tectonics of south Brazil. PhD thesis. Open University UK, 343 p.
26. McBirney A.R., Naslund H.R. The differentiation of the Skaergaard Intrusion, a disscusion of Hunter and Sparks. Contributions to Mineralogy and Petrology. 104:1990;235-240.
27. Nielsen R.L. TRACE.FOR: a program for the calculation of combined major and trace element liquid lines of descent for natural magmatic systems. Computers and Geosciences. 14:1988;15-35.
28. Nürnburg D., Müller R.D. The tectonic evolution of the South Atlantic from late Jurassic to present. Tectonophysics. 191:1991;27-53.
29. Peate D.W., Hawkesworth C.J. Lithospheric to asthenospheric transition in low-Ti flood basalts from southern Paraná, Brazil. Chemical Geology. 127:1996;1-24.
30. Peate D.W., Hawkesworth C.J., Mantovani M.S.M. Chemical stratigraphy of the Parana lavas, South America: classification of magma types and their spatial distribution. Bulletin of Volcanology. 55:1992;119-139.
31. Potts P.J., Webb P.C., Watson J.S. Energy dispersive x-ray fluorescence analysis of silicate rocks for major and trace elements. X-ray Spectrometry. 13:1984;2-15.
32. Potts P.J., Thorpe O.W., Isaacs M.C., Wright D.W. High precision instrumental neutron activation analysis of geological samples employing simultaneous counting with both planar and coaxial detectors. Chemical Geology. 48:1985;145-155.
33. Renne P.R., Ernesto M., Pacca I.G., Coe R.S., Glen J.M., Prevot M., Perrin M. The age of Paraná flood volcanism, rifting of Gondwanaland, and the Jurassic-Cretaceous boundary. Science. 258:1992;975-979.
34. Richardson S.H., Erlank A.J., Duncan A.R., Reid D.L. Correlated Nd, Sr and Pb isotope variation in Walvis Ridge basalts and implications for the evolution of their mantle source. Earth and Planetary Science Letters. 59:1982;327-342.
35. Rudnick R.L., Fountain D.M. Nature and composition of the continental crust: a lower crustal perspective. Reviews of Geophysics. 33:1995;267-309.
36. 39Ar geochronology in the Paraná continental flood basalt province. Earth and Planetary Science Letters. 143:1996;95-109.
37. Sun S-s, McDonough W.F. Chemical and isotopic systematics of oceanic basalts: implications for mantle composition and processes. Geological Society Special Publication. 42:1989;313-345.
38. Sweeney R.J., Falloon T.J., Green D.H., Tatsumi Y. The mantle origins of Karoo picrites. Earth and Planetary Science Letters. 107:1991;256-271.
39. 205Pb double spike. Terra Abstracts. 5:1993;396.
40. Turner S. Petrogenesis of the late-Delamerian gabbroic complex at Black Hill, South Australia: implications for convective thinning of the lithospheric mantle. Mineralogy and Petrology. 56:1996;51-89.
41. Turner S., Hawkesworth C. The nature of the sub-continental mantle: constraints from the major-element composition of continental flood basalts. Chemical Geology. 120:1995;295-314.
42. 39Ar geochronology. Earth and Planetary Science Letters. 121:1994;333-348.
43. Turner S., Hawkesworth C., Gallagher K., Stewart S., Peate D., Mantovani M. Mantle plumes, flood basalts and thermal models for melt generation beneath continents: assessment of a conductive heating model and application to the Paraná Journal of Geophysical Research. 101:1996;11,503-11,518.
44. Wooden J.L., Czamanske G.K., Fedorenko V.A., Arndt N.T., Chauvel C., Bouse R.M., King B-S.W., Knight R.J., Siems D.F. Isotopic and trace-element constraints on mantle and crustal contributions to Siberian continental flood basalts, Noril'sk area, Siberia. Geochimica et Cosmochimica Acta. 57:1993;3677-3704.