Cosmogenic 3He exposure ages and geochemistry of basalts from Ascension Island, Atlantic Ocean

Quaternary Geochronology

Volumn 4, Issue 6, 2009, Pages 525-532

  Ammon, K ^a   Dunai, T J ^a   Stuart, F M ^b   Meriaux, A S ^a,c   Gayer, E ^a,d  

^a UNIVERSITY OF EDINBURGH   (United Kingdom)

^b SCOTTISH UNIVERSITIES ENVIRONMENTAL RESEARCH CENTRE   (United Kingdom)

^c NEWCASTLE UNIVERSITY   (United Kingdom)

^d INSTITUT DE PHYSIQUE DU GLOBE DE PARIS   (France)

Author keywords

3He exposure ages; Eruptive history of Ascension Island; Magmatic 3He 4He ratio

Indexed keywords

BASALT; COSMOGENIC RADIONUCLIDE; GEOCHEMISTRY; GEOCHRONOLOGY; HELIUM; ISOTOPIC RATIO; LAVA FLOW; MAGMATISM; OLIVINE; PHENOCRYST; PYROXENE; VOLCANIC ERUPTION; VOLCANISM;

ASCENSION ISLAND; ATLANTIC ISLANDS; ATLANTIC OCEAN;

EID: 70350776498     PISSN: 18711014     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.quageo.2009.09.003     Document Type: Article

References (36)

1. 39Ar and K-Ar dated Patagonian lava flows at 47°S. Earth and Planetary Science Letters 210 (2003) 119-136
2. 3He determinations in volcanic olivine and pyroxene. Earth and Planetary Science Letters 276 (2008) 20-29
3. 3He record from K-Ar dated basaltic flows of Mount Etna volcano (Sicily, 38°N): evaluation of a new paleoaltimeter. Earth and Planetary Science Letters 236 (2005) 613-631
4. 3He production rates revisited from evidences of grain size dependent release of matrix-sited helium. Earth and Planetary Science Letters 247 (2006) 222-234
5. Bourdon E., and Hemond C. Looking for the "missing endmember" in South Atlantic Ocean mantel around Ascension Island. Mineralogy and Petrology 71 (2001) 127-138
6. Brozena J.M. Temporal and Spatial Variability of Seafloor Spreading Processes in the Northern South Atlantic. Journal of Geophysical Research 91 B1 (1986) 497-510
7. Chaffey D.J., Cliff R.A., and Wilson B.M. Characterization of the St. Helena magma source. In: Norry A.D.S.a.M.J. (Ed). Magmatism in Ocean Basins. Geol. Soc. Spec. Publ (1989)
8. Cohen R.S., and O'Nions R.K. Identification of recycled continental material in the mantle from Sr, Nd and Pb isotope investigations. Earth and Planetary Science Letters 61 (1982) 73-84
9. Dunai T.J. Influence of secular variation of the geomagnetic field on production rates of in situ produced cosmogenic nuclides. Earth and Planetary Science Letters 193 (2001) 197-212
10. 39Ar dated basalt flows at 29°N latitude. Earth and Planetary Science Letters 176 (2000) 147-156
11. 3He exposure dating of the Quaternary basalts from Fogo, Cape Verdes: Implications for rift zone and magmatic reorganization. Quaternary Geochronology 4 (2009) 37-49
12. Foeken J.P.T., Stuart F.M., Dobson K.J., Persano C., and Vilbert D. A diode laser system for heating minerals for (U-Th)/He chronometry. Geochemistry, Geophysics, Geosystems 7 4 (2006) 1-9
13. Gosse J.C., and Phillips F.M. Terrestrial in situ cosmogenic nuclides: Theory and application. Quaternary Science Reviews 20 (2001) 1475-1560
14. Graham D.W., Humphris S.E., Jenkins W.J., and Kurz M.D. Helium isotope geochemistry of some volcanic rocks from Saint Helena. Earth and Planetary Science Letters 110 (1992) 121-131
15. Graham D.W., et al. Helium isotope geochemistry of mid-ocean ridge basalts from the South Atlantic. Earth and Planetary Science Letters 110 (1992) 113-147
16. Hanan B.B., Kingsley R.H., and Schilling J.-G. Pb isotope evidence in the South Atlantic from migrating ridge-hotspot interactions. Nature 322 (1986) 137-144
17. Harris C., Bell J.D., and Atkins F.B. Isotopic composition of lead amd strontium in lavas and coars-grained bolcks from Ascension Island, South Atlantic. Earth and Planetary Science Letters 60 (1982) 79-85
18. Hilton D.R., Barling J., and Wheller G.E. Effect of shallow-level contamination on helium isotope systematics of ocean-island lavas. Nature 373 (1995) 330-333
19. Kar A., Weaver B., Davidson J., and Colucci M. Origin of Differentiated Volcanic and Plutonic Rocks fromAscension Island, South Atlantic Ocean. Journal of Petrology 39 5 (1998) 1009-1024
20. Klingelhoefer F., Minshull T.A., Blackman D.K., Harben P., and Childers V. Crustal structure of Ascension Island from wide-angle seismic data: implication for thr formation of near-ridge volcanic islands. Earth and Planetary Science Letters 190 (2001) 41-56
21. Kurz M.D. In-situ production of terrestrial cosmogenic helium and some applications to geochronology. Geochimica et Cosmochimica Acta 50 12 (1986) 2855-2862
22. 3He: results from young Hawaiian lava flows. Earth and Planetary Science Letters 97 (1990) 177-189
23. Kurz M.D., Jenkins W.J., and Hart S.R. Helium isotopic systematics of oceanic islands and mantle heterogeneity. Nature 297 (1982) 43-46
24. 40Ar. Geology 22 (1994) 135-138
25. LeRoex A.P., Cliff R.A., and 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
26. Masarik J., and Reedy R.C. Monte Carlo simulation of in-situ-produced cosmogenic nuclides. Radiocarbon 38 1 (1996) 163-164
27. Minshull T.A., Bruguier N.J., and Brozena J.M. Ridge-plume interactions or mantle heterogeneity near Ascension Island?. Geology 26 2 (1998) 115-118
28. Minshull, T.A., Ishizuka, O., Mitchell, N.C. and Evangelidis, C., 2003. Vertical motion and Lithosphere rheology at Ascension Island. AGU abstract, V11B-06.
29. Nielson D.L., and Sibbett B.S. Geology of Ascension Island, South Atlantic Ocean. Geothermics 25 4/5 (1996) 427-448
30. Nielson D.L., and Stiger S.G. Drilling and evaluation of Ascension #1, a geothermal exploration well on Ascension Island, South Atlantic Ocean. Geothermics 25 4/5 (1996) 543-560
31. Pepin R.O., and Porcelli D. Origin of Noble Gases in Terrestrial Planets. Reviews in Mineralogy and Geochemistry vol. 47 (2002), Mineralogical Society of America pp. 191-246
32. 21Ne. Earth and Planetary Science Letters 119 (1993) 395-404
33. 4He in picritic basalts from Baffin Island: role of a mixed reservoir in mantle plumes. Nature 424 (2003) 57-59
34. Sun S.-S. Lead isotope study of young volcanic rocks from mid-ocean ridges, ocean islands and island arcs. Philosophical Transactions of the Royal Society of London. Series A 297 (1980) 409-445
35. Weaver B., Kar A., Davidson J., and Colucci M. Geochemical characteristics of volcanic rocks from Ascension Island, South Atlantic Ocean. Geothermics 25 4/5 (1996) 449-470
36. 3He concentrations in old volcanic rocks: an example of landscape development in central Gran Canaria. Quaternary Science Reviews 24 (2005) 211-222