For a complete archive of Goonie's research outputs click here.
SELECTED PUBLICATIONS
Recent Journal and Book Publications
G.H. Howarth, J.S. Marsh, A.R. Duncan, C. Harris, J.S. Heinonen, S.H. Richardson, A. le Roex, R.W. Carlson, R.E. Zartman (2023) Petrogenesis of the Tuli Basin high-Ti picrites and basalts, Karoo CFB, southern Africa: Classification, stratigraphy, emplacement, and mantle source heterogeneity. Lithos, 440-441, 107040.
C. Antoine, R.A. Spikings, D. Miletic, J.S. Marsh, S. Gaynor, U. Schaltegger (2022) 40Ar/39Ar geochronology of the Drakensberg continental flood basalts: Understanding large argon isotopic variations in mafic groundmass and plagioclase size fractions: Chemical Geology, p. 121086.
J.S. Marsh (2020) Misrepresentation of early Karoo Volcanism: A critical discussion of aspects of “De Wit et al., 2020. Pillow talk: Volcanic rocks of the Karoo that formed many leagues under the Gondwanan Sea. South African Journal of Geology, doi: 0.25131/sajg.123.0021”. South African Journal of Geology, 123 (4), 647-652.
E.R. Neumann, J.S. Marsh, C.Y. Galerne, S. Polteau, H. Svensen, S. Planke (2020) Co-existing low-Ti and high-Ti dolerites in two large dykes in the Gap Dyke swarm, southeastern Karoo Basin (South Africa). South African Journal of Geology, 123 (1), 19-34.
J.S. Marsh, D. Phillips, B.E. Lock (2019) 40Ar/39Ar dating of the Klinghardt and Stalhart Phonolites, Namibia, and Comments on the Evolution of the Klinghardt Volcanic Field. Communications Geological Survey of Namibia, 20.
A.E. Jay, J.S. Marsh, F. Fluteau and V. Courtillot (2018) Emplacement of inflated pahoehoe flows in the Naude’s Nek Pass, Lesotho remnant, Karoo Continental Flood Basalt Province: use of flow-lobe tumuli in understanding flood basalt emplacement. Bulletin of Volcanology, 80, https://doi.org/10.1007/s00445-017-1189-6.
M. Moulin, F. Fluteau, V. Coutillot, J.Marsh, G. Delpech, X. Quidelleur, and M. Gérard (2017) Eruptive history of the Karoo lava flows and their impact on Early Jurassic climate change. Journal of Geophysical ResearchSolid Earth, 122 122, 738–772
J. S. Marsh (2016) Karoo dolerite intrusions – shaping landscapes of the Great Karoo, 81-87. In: Anhaeusser, CR, Viljoen, MR, and Viljoen, RP (Eds.) Africa’s Top Geological Sites. Struik Nature, Cape Town, 312pp.
J. S. Marsh (2016) New evidence for the correlation of basalts of the Suurberg Group with the upper part of the Karoo basalt sequence of Lesotho, 59-65. In: B. Linol and M. De Wit (Eds.) Regional Geology Reviews 8643: Origin and Evolution of the Cape Mountains and Karoo Basin, Springer Verlag.
H. H. Svensen, S. Planke, E-R. Neumann, I. Aarnes, J.S.Marsh, S. Polteau, C. H. Harstad, and L. Chevallier (2015) Subvolcanic intrusions and the link to global climatic and environmental changes. Advances in Volcanology, doi: 10.1007/11157_2015_10.
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.
Recent Conference Presentations
J.S. Marsh, C.M. Williams and H.V. Eales (2019) New Amalfi and Elephant's Head intrusions, Karoo Igneous Province: Differentiation and relationship. Abstract volume, Igneous and Metamorphic Studies Group meeting, Parys, South Africa.
J.S. Marsh (2014) Sr, Nd, and Pb-isotopes in Cretaceous basanites, SW Angola – evidence for a HIMU component in the mantle source and crustal contamination. Abstract volume, Igneous and Metamorphic Studies Group meeting, Grahamstown, South Africa.
J.S. Marsh and R. Swart (2014) The Bero Volcanic Group: an extension of the Etendeka Igneous Province into the Namibe Basin, SW Angola. Abstract, The Roy Miller Symposium, Windhoek, Namibia.
I. Sharp, K. Verwer, H. Ferreira, M. Snidero, V. Machado, E. Holtar, R. Swart, J. Marsh, L. Gindre, C. Puigdefabregas, and M. Fejersko. (2012) Pre- and Post-Salt non-marine carbonates of the Namibe Basin, Angola. AAPG Search and Discovery Article # 90142, AAPG Annual Convention and Exhibition, Long Beach, California.
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) Volcanism in the on-shore Namibe Basin, SW Angola. Namibe Basin Seminar, Zebra River, Namibia.
J.S. Marsh (2011) Cretaceous volcanism in the on-shore Namibe basin, southern Angola. Abstract volume, Igneous and Metamorphic Studies Group meeting, Stellenbosch, South Africa.