Magnetostratigraphy and timing of the Oligocene Ethiopian traps

Earth and Planetary Science Letters

Volumn 164, Issue 3-4, 1998, Pages 497-510

  Rochette, P ^a   Tamrat, E ^a   Feraud G ^b   Pik, R ^a   Courtillot, V ^c   Ketefo, E ^d   Coulon, C ^a   Hoffmann, C ^b,c   Vandamme, D ^a   Yirgu, G ^d  

^a CEREGE   (France)

^b UNIVERSITÉ DE NICE SOPHIA ANTIPOLIS   (France)

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

^d ADDIS ABABA UNIVERSITY   (Ethiopia)

Author keywords

Ar 40 Ar 39; Ethiopia; Flood basalts; Magnetostratigraphy; Oligocene

Indexed keywords

ARGON-ARGON DATING; FLOOD BASALT; MAGNETOSTRATIGRAPHY; OLIGOCENE;

ETHIOPIA;

EID: 0032583356     PISSN: 0012821X     EISSN: None     Source Type: Journal    
DOI: 10.1016/S0012-821X(98)00241-6     Document Type: Article

References (40)

1. Courtillot V. Mass extinctions in the last 300 million years: one impact and seven flood basalts? Israel J. Earth Sci. 43:1994;255-266.
2. 39Ar et paléomagnétisme des traps d'Ethiopie, du Deccan et de Sibérie, PhD thesis, Univ. Paris 7-IPGP, 1997, 200 pp.
3. Richards M.A., Duncan R.A., Courtillot V. Flood basalts and hotspot tracks: plume heads and tails. Science. 246:1989;103-107.
4. Hill R.I. Starting plumes and continental breakup. Earth Planet. Sci. Lett. 104:1991;398-416.
5. Rampino M.R., Self S. Volcanic winter and accelerated glaciation following the Toba super-eruption. Nature (London). 359:1992;50-52.
6. W. Alvarez, T. rex and the crater of doom, Princeton University Press, Princeton, USA, 1997, 185 pp.
7. Bhandari N., Shukla P.N., Ghevariya Z.G., Sundaram S. Impact did not trigger Deccan volcanism: Evidence from Anjar K/T boundary intertrappean sediments. Geophys. Res. Lett. 22:1995;433-436.
8. Hofmann C., Courtillot V., Féraud G., Rochette P., Yirgu G., Ketefo E., Pik R. Timing of the Ethiopian flood basalt event and implications for plume birth and global change. Nature (London). 389:1997;838-841.
9. Montanari A., Asaro F., Michel H.V., Kennett J.P. Iridium anomalies of late Eocene age at Massignano (Italy) and ODP Site 689B (Maud Rise, Antarctic). Palaios. 8:1993;420-437.
10. Bottomley R., Grieve R., York D., Masaitis V. The age of the Popigai impact event and its relation to events at the Eocene/Oligocene boundary. Nature (London). 388:1997;365-368.
11. W.A. Bergren, D.R. Prothero, Eocene-Oligocene climatic and biotic evolution: an overview, in: D.R. Prothero, W.A. Bergren (Ed.), Eocene-Oligocene climatic and biotic evolution, Princeton Univ. Press, 1992, pp. 1-28.
12. P. Mohr, B. Zanettin, The Ethiopian flood basalt province, in: J.D. Mac Dougall (Ed.), Continental flood basalts, Kluwer, Dordrecht, 1988, pp. 63-110.
13. Ebinger C.J., Yemane T., Woldegabriel G., Aronson J.L., Walter R.C. Late Eocene-Recent volcanism and faulting in the southern main Ethiopian rift. J. Geol. Soc. London. 150:1993;99-108.
14. Berhe S.M., Desta B., Nicoletti M., Teferra M. Geology, geochronology and geodynamic implications of the Cenozoic magmatic province in W and SE Ethiopia. J. Geol. Soc. London. 144:1987;213-226.
15. Brock A., Gibson L., Gacii P. The paleomagnetism of the Ethiopian Flood Basalt Succession near Addis Abeba. Geophys. J. R. Astron. Soc. 19:1970;485-497.
16. Schult A. Paleomagnetism of Tertiary volcanic rocks from the Ethiopian Southern plateau and the Danakil block. J. Geophys. 40:1974;203-212.
17. Kellogs K.S., Reynolds R.L. Opening of the Red Sea: constraints from a paleomagnetic study of the As Sarat volcanic field, southwestern Saudi Arabia. Geophys. J. R. Astron. Soc. 74:1983;649-665.
18. 39Ar laser probe study of Alpine micas (Sesia zone, Western Alps, northern Italy). Chem. Geol. (Isotope section). 121:1995;327-343.
19. 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. Bull. Volcanol. 55:1992;119-139.
20. Lightfoot P.C., Hawkesworth C.J., Hergt J., Naldrett A.J., Gorbatchev N.S., Fedorenko V.A., Doherty W. Remobilisation of the continental lithosphere by a mantle plume: Major-, trace-element, and Sr-, Nd-, and Pb-isotope evidence from picritic and tholeiitic lavas of the Norilísk District, Siberian Traps, Russia. Contrib. Mineral. Petrol. 114:1993;171-188.
21. Pik R., Deniel C., Coulon C., Yirgu G., Hofmann C., Ayalew D. The Northwestern Ethiopian plateau flood basalts: Classification and spatial distribution of magma types. J. Volcanol. Geotherm. Res. 81:1998;91-111.
22. Vandamme D. A new method to estimate paleosecular variation. Phys. Earth Planet. Inter. 85:1994;131-142.
23. McFadden P.L., Merill R.T., McElhinny M., Lee S. Reversals of the earth's magnetic field and temporal variations of the dynamo families. J. Geophys. Res. 96:1991;3923-3933.
24. Rochette P., Ben Atig F., Collombat H., Vandamme D., Vlag P. Low paleosecular variation at the equator, a pilgrimage from Galapagos to Esterel with A. Cox and H. Zijderveld. Geol. Mijnb. 73:1997;9-19.
25. Joffe S., Garfunkel Z. Plate kinematics of the circum Red Sea - a reevaluation. Tectonophysics. 141:1987;5-22.
26. F. Torcq, Evolution et destruction de la Pangéa du Carbonifère au Jurassique dérivé des pôles magnétiques et étude de la dipolarité du champ. PhD. Thesis, Univ. Paris 7, 1997, 183 pp.
27. Quidelleur X., Valet J.P., Courtillot V., Hulot G. Long term geometry of the geomagnetic field for the last 5 Myr: an updated secular variation database from volcanic sequences. Geophys. Res. Lett. 21:1994;1639-1642.
28. Schneider D.A., Kent D.V. Testing models of the Tertiary paleomagnetic field. Earth Planet. Sci. Lett. 101:1990;260-271.
29. Huestis S.P., Acton G.D. On the construction of geomagnetic timescales from non-prejudicial treatment of magnetic anomaly data from multiples ridges. Geophys. J. Int. 129:1997;176-182.
30. Cande S.C., Kent D.V. Revised calibration of the geomagnetic polarity time scale for the late Cretaceous and Cenozoic. J. Geophy. Res. 100:1995;6093-6095.
31. Drury S.A., Kelley S.P., Berhe S.M., Collier R.E.L., Abraha M. Structures related to Red Sea evolution in Northern Erythrea. Tectonics. 13:1994;1371-1380.
32. 39Ar chronology of Tertiary magmatic activity in southern Yemen during the early Red Sea-Aden rifting. J. Volcanol. Geotherm. Res. 65:1995;265-279.
33. Baker J., Snee L., Menzies M. A brief Oligocene period of flood volcanism in Yemen: implications for the duration and rate of continental flood basalt volcanism at the Afro-Arabian triple junction. Earth Planet. Sci. Lett. 138:1996;39-55.
34. McDougall I., Morton W.H., Williams M.A.J. Age and denudation rate of Traps Series basalts at Blue Nile gorge, Ethiopia. Nature (London). 254:1975;207-209.
35. Manighetti I., Tapponnier P., Courtillot V., Gruszow S., Gillot P.Y. Propagation of rifting along the Arabia-Somalia plate boundary: I - The gulfs of Aden and Tadjoura. J. Geophys. Res. 102:1997;2681-2710.
36. 18O and Exxon eustatic records. Geology. 24:1996;567-570.
37. Robinson S.G. Applications for whole core magnetic susceptibility measurements of deep-sea sediments: leg 115 results. ODP Sci. Res. 115:1990;737-771.
38. Okada H. Quaternary and Paleogene calcareous nannofossils, Leg 115. ODP Sci. Res. 115:1990;129-174.
39. W.A. Berggren, D.V. Kent, C.C. Swisher, M.P. Aubry, A revised Cenozoic geochronology and chronostratigraphy, in: W.A. Berggren, D.V. Kent, M.P. Aubry, J. Hardenbol (Ed.), Geochronology Time Scales and Global Stratigraphic Correlation, SEPM Spec. Publ. 54 (1995) 129-212.
40. Baker P.A., Malone M.J., Burns S.J., Swart P.K. Minor element and stable isotope composition of the fine carbonate fraction: site 709 Indian Ocean. ODP Sci. Res. 115:1990;661-676.