Professor J.S. “Goonie” Marsh

Prof. Goonie Marsh

Professor
Igneous petrology

Ph.D. University of Cape Town (RSA)

RESEARCH INTERESTS

• Petrology of Karoo and Etendeka continental flood basalt provinces
• Petrology of alkaline igneous rocks

For contact information, see the Staff page.

TEACHING IN THE DEPARTMENT

• EAR101: Introduction to geology and Earth Science
• GLG202: Igneous petrology
• Honours: High-temperature geochemistry / Igneous petrology
• GLG2 field school: Mapping and volcanosedimentary sequences

• M. Moulin, F, Fluteau, V. Courtillot, J. Marsh, G. Delpech, X. Quidelleur, M. Gerard and A. Jay (2011) An attempt to constrain the age, duration, and eruptive history of the Karoo flood basalt: the Naude's Nek section (South Africa). Journal of Geophysical Research, 116, B07403, doi:10.1029/2011JB008210.
• S.E.Bryan, I.Ukstins-Peate, D.W. Peate, S. Self, D.A. Jerram, M.R. Mawby, J.S.Marsh, and J.A.Miller (2010) The largest eruptions on Earth. Earth Science Reviews, 102, 207-229.
• J.S. Marsh (2010) The geochemistry and evolution of Palaeogene phonolites, central Namibia. Lithos, 117, 149-160.
• E.K. Hanson, J.M. Moore, E.M. Bordy, J.S. Marsh, G. Howarth, and J. Robey (2009) Cretaceous erosion in central South Africa: Evidence from upper crustal xenoliths in kimberlite diatremes. South African Journal of Geology, 112, 125-140.
• J.S. Marsh and A. R. Duncan (2008) Doros  Gabbro Complex. In: Miller, R. McG. (Ed) The Geology of Namibia Vol. 3, 18-75 - 18-78. Geological Survey of Namibia.
• S.M. Maes, E.C. Ferre, B.Tikoff, P.E. Brown, and J.S. Marsh (2008) Rock magnetic stratigraphy of a mafic layered sill: A key to the Karoo volcanics plumbing system. Journal of Volcanology and Geothermal Research, 172, 75-92.
• M. McClintock, J.S. Marsh and J.D.L. White (2008) Diverse magma types erupted close together in space and time within a Karoo flood basalt crater complex. Bulletin of Volcanology, 70, 923-946.

• J.A. Lodge and J.S. Marsh (2011) petrology and geochemistry of rare wide dykes in the basaltic sequence of Lesotho. Igneous and Metamorphic Studies Group meeting, Stellenbosch.
• J.S. Marsh (2011) Cretaceous volcanism in the on-shore Namibe basin, southern Angola. Igneous and Metamorphic Studies Group meeting, Stellenbosch.
• B.A. Lehman, E.C. Ferre, S.M. Maes, J.W. Geissman, M.C. Marsh, L. Mare, and J.S. Marsh (2010) Normal and anomalous AMS fabrics in gabbroic sills: examples from the Karoo Large Igneous Province. Abstract GP41A-1033, 2010 Fall Meeting, AGU, San Francisco.
• J.W. Geissman, E.C. Ferre, S.M. Maes, and J. Marsh (2010) Palaeomagnetism of gabbroic sills forming the floor of the Early Jurassic Karoo Large Igneous Province, South Africa. Abstract GP33C-0963, 2010 Fall Meeting, AGU, San Francisco.
• M. Moulin, F. Fluteau, V. Courtillot, J. Marsh, G. Delpech, X. Quidelleur, and M. Gerard (2010)  Magnetostratigraphy and dating of the Lesotho lava pile (Karoo traps): an attempt to constrain the timing of the eruptive sequence in relation with the end-Pliensbachian extinction event.  Abstract, EGU General Assembly, Vienna.
• M. Moulin, F. Fluteau, V. Courtillot, J. Marsh, G. Delpech, X. Quidelleur, and M. Gerard (2010) is there a causal relationship between the timing of emplacement of large igneous provinces and their destructive consequences ? Constraints from the lesotho eruptive sequence (Karoo traps). Abstract v13E-2399, 2010 Fall Meeting, AGU, San Francisco.
• J.S. Marsh (2010) Karoo Andesites.  Igneous and Metamorphic Studies Group meeting, Grahamstown.