Torfajokull: A radiogenic end-member of the Iceland Pb-isotopic array

Earth and Planetary Science Letters

Volumn 165, Issue 1, 1999, Pages 117-127

  Stecher, Ole ^a   Carlson, Richard W ^b   Gunnarsson, Björn ^c  

^a DANISH LITHOSPHERE CENTRE   (Denmark)

^b GEOPHYSICAL LABORATORY   (United States)

^c JOHNS HOPKINS UNIVERSITY   (United States)

Author keywords

Acid composition; Iceland; Mid ocean ridges; Radioactive isotopes

Indexed keywords

FELSIC ROCK; ISOTOPIC COMPOSITION; MID-OCEAN RIDGE; VOLCANISM;

ICELAND;

EID: 0033555188     PISSN: 0012821X     EISSN: None     Source Type: Journal    
DOI: 10.1016/S0012-821X(98)00256-8     Document Type: Article

References (43)

1. N. Óskarsson, G.E. Sigvaldason, S. Steinthorsson, A dynamic model of rift zone petrogenesis and the regional petrology of Iceland. Nor. Volcanol. Inst. Pap. 79 05 (1979) 104 pp.
2. Óskarsson N., Sigvaldason G.E., Steinthorsson S. A dynamic model of rift zone petrogenesis and the regional petrology of Iceland. J. Petrol. 23:1982;28-74.
3. Óskarsson N., Steinthorsson S., Sigvaldason G.E. Iceland geochemical anomaly: origin, volcanotectonics, chemical fractionation and isotope evolution of the crust. J. Geophys. Res. 90:1985;10011-10025.
4. Hattori K., Muehlenbachs K. Oxygen isotope ratios of the Icelandic crust. J. Geophys. Res. 87:1982;6559-6565.
5. 238U disequilibria in historical lavas from Iceland. Earth Planet. Sci. Lett. 55:1981;393-416.
6. Condomines M., Grönvold K., Hooker P.J., Muehlenbachs K., O'Nions R.K., Óskarsson N. E.R. Oxburgh, 1983. Helium, oxygen, strontium and neodymium isotopic relationships in Icelandic volcanics. Earth Planet. Sci. Lett. 66:1983;125-136.
7. Hémond C., Condomines M., Fourcade S., Allègre C.J., Óskarsson N. M. Javoy, 1988. Thorium, strontium and oxygen isotopic geochemistry in recent tholeiites from Iceland: crustal influence on mantle-derived magmas. Earth Planet. Sci. Lett. 87:1988;273-285.
8. Hémond C., Arndt N.T., Lichtenstein U., Hofmann A.W., Óskarsson N., Steinthorsson S. The heterogeneous Iceland Plume: Nd-Sr-O isotopes and trace element constraints. J. Geophys. Res. 98:1993;15833-15850.
9. Sigmarsson O., Hémond C., Condomines M., Fourcade S., Óskarsson N. Origin of silicic magma in Iceland revealed by Th isotopes. Geology. 19:1991;621-624.
10. Sigmarsson O., Condomines M., Fourcade S. A detailed Th, Sr and O isotope study of Hekla: differentiation processes in an Icelandic Volcano. Contrib. Mineral. Petrol. 112:1992;20-34.
11. Sigmarsson O., Condomines M., Fourcade S. Mantle and crustal contribution in the genesis of Recent basalts from off-rift zones in Iceland: constraints from Th, Sr and O isotopes. Earth Planet. Sci. Lett. 110:1992;149-162.
12. Meyer P.S., Sigurdsson H., Schilling J.-G. Petrological and geochemical variations along Iceland's neovolcanic zones. J. Geophys. Res. 90:1985;10043-10072.
13. Saemundsson K. Outline of the geology of Iceland. Jökull. 29:1979;7-28.
14. Johannesson H. Evolution of rift zones in western Iceland (in Icelandic). Natturufraedingurinn. 50:1980;13-31.
15. G. Ivarsson, Geology and Petrochemistry of the Torfajökull Central Volcano in Central South Iceland, in Association with the Icelandic Hot Spot and Rift Zones. Ph.D. dissertation, University of Hawaii, 1992, 332 pp.
16. Saemundsson K. Notes on the geology of the Torfajökull area (in Icelandic). Natturufraedingurinn. 42:1972;81-144.
17. K. Grönvold, Structural and Petrochemical Studies in the Kerlingarfjöll Region, Central Iceland. Ph.D. thesis, University of Oxford, 1972, 237 pp.
18. McGarvie D.W. Torfajökull: a volcano dominated by magma mixing. Geology. 12:1984;685-688.
19. B. Gunnarsson, Petrological and Geochemical Variations along Iceland's Neovolcanic Zones. Ph.D. dissertation, Johns Hopkins University, 1987, 432 pp.
20. McDonald R., McGarvie D.W., Pinkerton H., Smith R.L., Palacz A. Petrogenetic evolution of the Torfajökull volcanic complex, Iceland, I. Relationship between the magma types. J. Petrol. 31:1990;429-459.
21. McGarvie D.W., McDonald R., Pinkerton H., Smith R.L. Petrogenetic evolution of the Torfajökull volcanic complex, Iceland, II. The role of magma mixing. J. Petrol. 31:1990;461-481.
22. 86Sr ratios in oceanic basalts. Earth Planet. Sci. Lett. 34:1977;13-22.
23. Stecher O., Carlson R.W., Shirey S.B. Sr and Nd isotopes and the petrological evolution of post-glacial lavas from the Reykjanes Peninsula, Iceland (abstr.). Eos. 67:1986;413.
24. Schilling J.-G. Iceland mantle plume: geochemical evidence along Reykjanes Ridge. Nature. 242:1973;565-571.
25. Sigvaldasson G.E. Basalts from the centre of the assumed Icelandic mantle plume. J. Petrol. 15:1974;497-523.
26. Elliott T.R., Hawkesworth C.J., Grönvold K. Dynamic melting of the Iceland plume. Nature. 351:1991;201-206.
27. Hards V.L., Kempton P.D., Thompson R.N. The heterogeneous Iceland plume: new insights from the alkaline basalts of the Snaefell volcanic centre. J. Geol. Soc. London. 152:1995;1003-1009.
28. Cohen R.S., O'Nions R.K. The lead, neodymium and strontium isotopic structure of ocean ridge basalts. J. Petrol. 23:1982;299-324.
29. Sun S.S., Jahn B.-M. Lead and strontium isotopes in post-glacial basalts from Iceland. Nature. 255:1975;527-530.
30. Welke H., Moorbath S., Cumming G.L., Sigurdsson H. Lead isotope studies on igneous rocks from Iceland. Earth Planet. Sci. Lett. 4:1968;221-231.
31. K-H. Park, Sr, Nd and Pb Isotope Studies of Ocean Island Basalts: Constraints on their Origin and Evolution. Ph.D. dissertation, Columbia University, 1990, 252 pp.
32. Hanan B.B., Schilling J.-G. The dynamic evolution of the Iceland mantle plume: the lead isotope perspective. Earth Planet. Sci. Lett. 151:1997;43-60.
33. Kurz M.D., Meyer P.S., Sigurdsson H. Helium isotopic systematics within the neovolcanic zones of Iceland. Earth Planet. Sci. Lett. 74:1985;291-305.
34. 3He anomalies in the Icelandic crust. Chem. Geol. 88:1990;53-67.
35. G. Polak, I. Kononov, I.N. Tolsikhin, B.A. Mamyrin, L.V. Khabarin, The helium isotopes in thermal fluids. Thermal and chemical problems of thermal waters, Int. Assoc. Hydrogeol. Sci. (1976) 17-33.
36. Carlson R.W. Mechanisms of Earth differentiation: consequences for the chemical structure of the mantle. Rev. Geophys. 32:1994;337-361.
37. Hart S.R., Hauri E.H., Oschmann L.A., Whitehead J.A. Mantle plumes and entrainment: isotopic evidence. Science. 256:1992;517-520.
38. Hauri E.H., Whitehead J.A., Hart S.R. Fluid dynamic and geochemical aspects of entrainment in mantle plumes. J. Geophys. Res. 99:1994;24275-24300.
39. Farley K.A., Natland J.H., Craig H. Binary mixing of enriched and undegassed (primitive?) mantle components (He, Sr, Nd, Pb) in Samoan lavas. Earth Planet. Sci. Lett. 111:1992;183-199.
40. Hanan B.B., Graham D.W. Lead and helium isotope evidence from oceanic basalts for a common deep source of mantle plumes. Science. 272:1996;991-995.
41. H. Eysteinsson, K. Gunnarsson, Maps of Gravity, Bathymetry and Magnetics for Iceland and Surroundings. Orkustofnun (National Energy Authority), OS-95055/JHD-07, 1995.
42. Wolfe C.J., Bjarnason I.Th., VanDecar J.C., Solomon S.C. Seismic structure of the Iceland mantle plume. Nature. 385:1997;245-247.
43. 205Pb double spike for high-precision lead isotope analyses, in: A. Basu, S.R. Hart (Eds.), Earth Processes: Reading the Isotopic Code, Am. Geophys. Union, Geophys. Monogr. 95 (1996) 429-437.