Professor Raymond MacDonald

Emeritus

Research Overview

I am currently working on a range of petrological and mineralogical projects, mainly with colleagues at the University of Warsaw. These are (other associated institutions in brackets):-

Crystal chemistry of the chevkinite group of minerals

Element mobility during low-temperature alteration of chevkinite (Russian Academy of Sciences; US Geological Survey)

Accessory minerals in Scottish Palaeogene granites (University of Edinburgh)

Peralkaline rocks of the Nemrut Dag volcano, Turkey (IFM-GEOMAR)

Emplacement of the Mull dyke swarm in southern Britain

A Complex Petrogenesis for an Arc Magmatic Suite, St Kitts, Lesser Antilles.
Toothill, J., Williams, C.A., Macdonald, R., Turner, S.P., Rogers, N.W., Hawkesworth, C.J., Jerram, D.A., Ottley, C.J., Tindle, A.G. 01/2007 In: Journal of Petrology. 48, 1, p. 3-42. 40 p.
Journal article

Runoff processes in Southeast Asia: role of soil, regolith and rock type.
Chappell, N.A., Sherlock, M., Bidin, K., Macdonald, R., Najman, Y., Davies, G. 2007 In: Forest Environments in the Mekong River Basin. Tokyo : Springer Verlag p. 3-23. 21 p. ISBN: 978 4 431 46500 3.
Chapter

238U–230Th disequilibrium in recent basalts and dynamic melting beneath the Kenya rift.
Rogers, N.W., Thomas, L.E., Macdonald, R., Hawkesworth, C.J., Mokadem, F. 30/10/2006 In: Chemical Geology. 234, 1-2, p. 148-168. 21 p.
Journal article

Application of the QUILF thermobarometer to the peralkaline trachytes and pantellerites of the Eburru volcanic complex, East African Rift, Kenya.
Ren, M., Omenda, P.A., Anthony, E.A., White, J.C., MacDonald, R., Bailey, D.K. 10/2006 In: Lithos. 91, 1-4, p. 109-124. 16 p.
Journal article

Experimental constraints on pre-eruption conditions of pantelleritic magmas : evidence from the Eburru complex, Kenya Rift.
Scaillet, B., MacDonald, R. 10/2006 In: Lithos. 91, 1-4, p. 95-108. 14 p.
Journal article

Peralkaline syenite autoliths from Kilombe volcano, Kenya Rift Valley : evidence for subvolcanic interaction with carbonatitic fluids.
Ridolfi, F., Renzulli, A., MacDonald, R., Upton, B.G.J. 10/2006 In: Lithos. 91, 1-4, p. 373-392. 20 p.
Journal article

The central Kenya peralkaline province : insights into the evolution of peralkaline salic magmas.
Macdonald, R., Scaillet, B. 10/2006 In: Lithos. 91, 1-4, p. 59-73. 15 p.
Journal article

Experimental and thermodynamic constraints on the sulphur yield of peralkaline and metaluminous silicic flood eruptions.
Scaillet, B., Macdonald, R. 07/2006 In: Journal of Petrology. 47, 7, p. 1413-1437. 25 p.
Journal article

Basic and ultrabasic volcanic rocks from the Argyll Group (Dalradian) of NE Scotland.
Macdonald, R., Fettes, D.J., Stephenson, D., Graham, C.M. 2005 In: Scottish Journal of Geology. 41, 2, p. 159-174. 16 p.
Journal article

Experimental constraints on the relationships between peralkaline rhyolites of the Kenya Rift Valley.
Scaillet, B., MacDonald, R. 10/2003 In: Journal of Petrology. 44, 10, p. 1867-1894. 28 p.
Journal article

Magmatism of the Kenya Rift Valley : a review.
MacDonald, R. 09/2003 In: Transactions of the Royal Society of Edinburgh: Earth Sciences. 93, 3, p. 239-253. 15 p.
Journal article

Compositional variation in minerals of the chevkinite group.
MacDonald, R., Belkin, H.E. 1/12/2002 In: Mineralogical Magazine. 66, 6, p. 1075-1098. 24 p.
Journal article

Source and H2O content of high-MgO magmas in island arc settings : an experimental study of a primitive calc-alkaline basalt from St Vincent, Lesser Antilles arc.
Pichavant, M., Mysen, B.O., MacDonald, R. 15/06/2002 In: Geochimica et Cosmochimica Acta. 66, 12, p. 2193-2209. 17 p.
Journal article

Chevkinite-group minerals from salic volcanic rocks of the East African Rift.
MacDonald, R., Marshall, A.S., Dawson, J.B., Hinton, R.W., Hill, P.G. 1/04/2002 In: Mineralogical Magazine. 66, 2, p. 287-299. 13 p.
Journal article

Plume-lithosphere interactions in the generation of the basalts of the Kenya Rift, East Africa.
MacDonald, R., Rogers, N.W., Fitton, J.G., Black, S., Smith, M. 05/2001 In: Journal of Petrology. 42, 5, p. 877-900. 24 p.
Journal article

Phase relations of peralkaline silicic magmas and petrogenetic implications.
Scaillet, B., MacDonald, R. 04/2001 In: Journal of Petrology. 42, 4, p. 825-845. 21 p.
Journal article

Contaminants in the Canadian Arctic : 5 years of progress in understanding sources, occurrence and pathways.
Macdonald, R.W., Barrie, L.A., Bidleman, T.F., Diamond, M.L., Gregor, D.J., Semkin, R.G., Strachan, W.M.J., Li, Y.F.W.F., Alaee, M., Alexeeva, L.B., Backus, S.M., Bailey, R.E., Bewers, J.M., Gobeil, C., Halsall, C.J., Harner, T., Hoff, J.T., Jantunen, L.M.M., Lockhart, W.L., Mackay, D., Muir, D.C.G., Pudykiewicz, J., Reimer, K.J., Smith, J.N., Stern, G.A., Schroeder, W.H., Wagemann, R., Yunker, M.B. 1/06/2000 In: Science of the Total Environment. 254, 2-3, p. 93-234. 142 p.
Journal article

Phenocrystic fluorite in peralkaline rhyolites, Olkaria, Kenya Rift Valley.
Marshall, A.S., Hinton, R.W., MacDonald, R. 1/08/1998 In: Mineralogical Magazine. 62, 4, p. 477-486. 10 p.
Journal article

The role of magma mixing in triggering the current eruption at the Soufriere Hills Volcano, Montserrat, West Indies.
Murphy, M.D., Sparks, R.S.J., Barclay, J., Carroll, M.R., Lejeune, A., Brewer, T.S., MacDonald, R., Black, S., Young, S. 1998 In: Geophysical Research Letters. 25, 18, p. 3433-3436. 4 p.
Journal article

Petrogenesis of Silali volcano, Gregory Rift, Kenya.
Macdonald, R., Davies, G.R., Upton, B.G.J., Dunkley, P.N., Smith, M., Leat, P.T. 1995 In: Journal of the Geological Society. 152, 4, p. 703-720. 18 p.
Journal article

Strong compositional zonation in peralkaline magma: Menengai, Kenya Rift Valley.
Macdonald, R., Navarro, J.M., Upton, B.G.J., Davies, G.R. 05/1994 In: Journal of Volcanology and Geothermal Research. 60, 3-4, p. 301-325. 25 p.
Journal article

Tectonomagmatic evolution of the Kenya rift valley: some geological perspectives.
Macdonald, R., Williams, L.A.J., Gass, I.G. 1994 In: Journal of the Geological Society. 151, 5, p. 879-888. 10 p.
Journal article

Th, Pb, Nd and Sr Isotope Variations in Volcanic Rocks from the Lesser Antilles.
Turner, S., Hawkesworth, C., Macdonald, R., Black, S., van Calsteren, P. 1994 In: Mineralogical Magazine. 58A, 2, p. 916-917. 2 p.
Journal article

Volatile characteristics of peralkaline rhyolites from Kenya: an ion microprobe, infrared spectroscopic and hydrogen isotope study.
Wilding, M.C., Macdonald, R., Davies, J.E., Fallick, A.E. 06/1993 In: Contributions to Mineralogy and Petrology. 114, 2, p. 264-275. 12 p.
Journal article

230Th-238U series disequilibrium of the Olkaria basalts, Gregory Rift Valley, Kenya.
Black, S., Macdonald, R., Kelly, M. 1993 In: Lunar and Planetary Science. 24, p. 121-122. 2 p.
Journal article

230Th-238U series disequilibrium of the Olkaria basalts, Gregory Rift Valley, Kenya: petrogenesis.
Black, S., Macdonald, R., Kelly, M. 1993 In: Lunar and Planetary Science. 24, p. 123-124. 2 p.
Journal article

230Th-238U series disequilibrium of the Olkaria rhyolites, Gregory Rift Valley, Kenya: petrogenesis.
Black, S., Macdonald, R., Kelly, M. 1993 In: Lunar and Planetary Science. 24, p. 125-126. 2 p.
Journal article

230Th-238U series disequilibrium of the Olkaria rhyolites, Gregory Rift Valley, Kenya: residence times.
Black, S., Macdonald, R., Kelly, M. 1993 In: Lunar and Planetary Science. 24, p. 127-128. 2 p.
Journal article

Liquid immiscibility between trachyte and carbonate in ash flow tuffs from Kenya.
Macdonald, R., Kjarsgaard, B.A., Skilling, I.P., Davies, G.R., Hamilton, D.I., Black, S. 1993 In: Contributions to Mineralogy and Petrology. 114, 2, p. 276-287. 12 p.
Journal article

Stable isotope analyses of the peralkaline volcanics, Gregory Rift Valley, Kenya.
Black, S., Macdonald, R., Fallick, A.E., Kelly, M. 1993 In: Lunar and Planetary Science. 24, p. 119-120. 2 p.
Journal article

Potassic Mafic Lavas of the Bearpaw Mountains, Montana: Mineralogy, Chemistry, and Origin.
Macdonald, R., Upton, B.G.J., Collerson, K.D., Hearn, B.C.J., James, D. 1992 In: Journal of Petrology. 33, 2, p. 305-346. 42 p.
Journal article