Abdelmouhcine GANNOUN

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Gannoun_Abdel-MouhcineMr. Abdelmouhcine GANNOUN

Function: Post doctoral research fellow

Participation in ClerVolc program N°: 5

Main Research Unit: LMV

E-mail: M.Gannoun@opgc.univ-bpclermont.fr

Presentation

Research Topics

My personal research interests have sought to bring together a number of interrelated disciplines within Earth and environmental sciences. These are linked by the use of a range of mass spectrometric techniques to determine absolute timescales and to trace the sources of components through processes that extend from planetary differentiation to continental weathering and erosion.

a. Low temperature geochemistry: research in this area is aimed at understanding the Earth’s surface environment, both now and in the past. Current areas of research include: Continental weathering and climate change. Quantifying the effects of continental weathering and erosion through the use of a number of key isotope systems, and the study of natural systems. Chemical response of the oceans to changes in source and ocean circulation through direct measurement of seawater, thermal fluids and paleoceanographic records.

b. Planetary evolution: Research in this area is aimed at understanding the formation and differentiation of the Earth and other planets. Current research interests include: use of various techniques for analysing very small samples to high-precision for both conventional long-lived radiogenic isotopes linked to short-lived extinct nuclides to provide key information on early solar system processes. Mantle melting and the generation of oceanic lithopshere. Understanding of element behaviour during mantle melting, timescales of mantle depletion and relationship with crust formation. Assessment of the nature and role of source heterogeneities in the mantle and the influence of magmatic processes on the elemental and isotopic evolution of oceanic basalts.

Publications

  • Gannoun A.M., Burton K.W., Barfod D.N., Schiano P., Vlastelic I., Halliday A.N., (2015). Resolving mantle and magmatic processes in basalts from the Cameroon volcanic line using the Re–Os isotope system. Lithos vol.224-225, p.1-12, doi:10.1016/j.lithos.2015.02.017.
  •  Vye, C.L., Gannoun, A., Barry, T.L., Self, S. and Burton, K.W., 2013, Osmium isotope variations accompanying the eruption of a single lava flow field in the Columbia River Flood Basalt Province. Earth Planet. Sci. Lett. doi:10.1016/j.epsl.2013.02.003
  • Vlastélic, I., Menard, G., Gannoun, A., Piro, J.-L., Staudacher, T. and Famin, V., 2013, Trace element record of magma degassing and eruption dynamics during the April 2007 collapse of Piton de la Fournaise, J. Volcanol. Geotherm. Res. 254, 97-107.
  • Schiano, P., David, K., Vlastelic, I., Gannoun, A., Klein, M., Nauret, F., Bonnand, P., 2012, Osmium isotope systematics of historical lavas from Piton de la Fournaise (Réunion Island, Indian Ocean), Contrib. Mineral. Petrol. 164, 805–820
  • Dale, C.W., Burton, K.W., Greenwood, R.C., Gannoun, A., Wade, J., Wood, B.J., Pearson, D.G., 2012, Late accretion on the earliest planetesimals revealed by the highly siderophile elements, Science 336, 72-75.
  • Burton, K.W., Cenki-Tok, B., Mokadem, F., Harvey, J., Gannoun, A., Alard, O., Parkinson, I.J., 2012, Unradiogenic lead in Earth’s upper mantle, Nature Geoscience 5, 570-573.
  • Gannoun, A., Boyet, M., Devouard, B. and El Goresy, A., 2011, REE and actinide microdistribution in Sahara 97072 and ALHA 77295, EH3 chondrites, Geochim. Cosmochim. Acta 75, 3269-3289.
  • Harvey, J., Dale, C.W., Gannoun, A., Burton, K.W., 2011, Osmium mass balance in peridotite and the effects of mantle derived sulphides on basalt petrogenesis, Geochim. Cosmochim. Acta 75, 5574-5596.
  • Wimpenny, J., Burton, K.W., James, R.H., Gannoun, A., Mokadem, F., Gislason, S.R.,, 2011, The behaviour of magnesium and its isotopes during glacial weathering in an ancient shield terrain in West Greenland, Earth Planet. Sci. Lett. 304, 260-269.
  • Gannoun, A., Boyet, M., Rizo, H. and El Goresy, A., 2011, 146Sm-142Nd systematics of enstatite chondrites converge toward a terrestrial composition, PNAS 108, 7693-7697.
  • Nielsen, S.G., Gannoun, A., Marnham, C., Burton, K.W., Halliday, A.N., James R. Hein, J.R., 2011, New age for ferromanganese crust 109D-C and implications for isotopic records of lead, neodymium, hafnium, and thallium in the Pliocene Indian Ocean, Paleoceanography 26, PA2213, doi:10.1029/2010PA002003
Abdelmouhcine GANNOUN

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