Allso H.L. and J.C. Roddick 1984 . Rb-Sr and 40Ar-39Ar age determinations on phlogopite micas from the preLebombo Group Dokolwayo kimberlite pipe. Spec. Publ. Geol. Soc. S. Afr. 13, 267–271. Google Scholar
Allsop, H.L., W.I. Manton, J.W. Bristow and A.J. Erlank (1984a). Rb-Sr geochronology of Karoo felsic volcanics. Spec. Publ. Geol. Soc. S. Afr. 13, 273–280. Google Scholar
Allsop, H.L., J.W. Bristow, C.T. Logan, H.V. Eales and A.J. Erlank (1984b). Karoo-related intrusive complexes. Spec. Publ. Geol. Soc. S. Afr. 13, 273–280. Google Scholar
Armstrong, R.A., J.W. Brisstow and K.G. Cox (1984). The Rooi Rand dyke swarm, southern Lebombo. Spec. Publ. Geol. Soc. S. Afr. 13, 77–86. Google Scholar
Basaltic Vulcanism Study Project (1981). Basaltic vulcanism on the terrestrial planets. Pergamon Press, New York. 1286 p. Google Scholar
Bellieni, G., P. Comin-Chiaramonti, L.S. Marques, A.J. Melfi, A.J.R. Nardy, E.M. Piccirillo and A. Roisenberg (1984). High- and low-TiO2 flood basalts from the Paraná plateau (Brazil): petrology and geochemical aspects bearing on their mantle origin. Neues Jahr. Miner. Abh. 150, 273–306. Google Scholar
Bellieni, G., P. Comin-Chiaramonti, L.S. Marques, A.J. Melfi, A.J.R. Nardy, C. Papatrechas, E.M. Piccirillo, A. Roisenberg and D. Stolfa (in press). Petrogenetic aspects of acid and basaltic lavas from the Paraná plateau (Brazil): geological, mineralogical and petrochemical relationships. J. Petrology. Google Scholar
Betton, P.J. (1979). Isotopic evidence for crustal contamination in the Karroo rhyolites of Swaziland. Earth Planet. Sci. Lett. 45, 263–274. Article Google Scholar
Betton, P.J. and K.G. Cox (1979). Production of rhyolites at continental margins: an example from the Lebombo monocline (abstr.). 18th Congress, Geol. Soc. S. Afr. Abstracts Volume, Part 1, 29–32. Google Scholar
Betton, P.J., R.A. Armstrong and W.I. Manton (1984). Variations in the lead isotopic composition of Karoo magmas. Spec. Publ. Geol. Soc. S. Afr. 13, 331–339. Google Scholar
Bonnatti, E., C.G.A. Harrison, D.E. Fisher, J. Honnorez, J.-G. Schilling, J.J. Stipp and M. Zentilli (1977). Easter volcanic chain (Southwest Pacific): a mantle hot line. J. Geophys. Res. 82, 2457–2477. Article Google Scholar
Bott, M.H.P. (1982). The mechanism of continental splitting. Tectonophysics 81, 301–309. Article Google Scholar
Bowen, N.L. (1928). The evolution of the igneous rocks. Princeton University Press. 322 p. Google Scholar
Bristow, J.W. (1984a). Nephelinites of the north Lebombo and south-east Zimbabwe. Spec. Publ. Geol. Soc. S. Afr. 13, 87–104. Google Scholar
Bristow, J.W. (1984b) Picritic rocks of the north Lebombo and south-east Zimbabwe. Spec. Publ. Geol. Soc. S. Afr. 13. 105–123. Google Scholar
Bristow, J.W. and K.G. Cox (1984). Volcanic rocks of the Lebombo-Nuanetsi-Sabi zone: classification and nomenclature. Spec. Publ. Geol. Soc. S. Afr. 13, 69–75. Google Scholar
Bristow, J.W., H.L. Allsop, A.J. Erlank, J.S. Marsh and R.A. Armstrong (1984). Sr-isotope characterisation of Karoo volcanic rocks. Spec. Publ. Geol. Soc. S. Afr. 13, 295–325. Google Scholar
Burke, K. and J.F. Dewey (1973). Plume generated triple junctions. Key indicators in applying plate tectonics to old rocks. J. Geol. 81, 403–443. Article Google Scholar
Cleverly, R.W. (1977). The structural and magmatic evolution of the Lebombo monocline, southern Africa, with particular reference to Swaziland. D. Phil. dissertation, Univ. of Oxford. Google Scholar
Cleverly, R.W. (1979). The volcanic geology of the Lebombo monocline of Swaziland. Trans. Geol. Soc. S. Afr. 82, 343–348. Google Scholar
Cleverly, R.W. and J.W. Bristow (1979). Revised volcanic stratigraphy of the Lebombo monocline. Trans. Geol. Soc . S. Afr. 82. 227–230. Google Scholar
Cleverly, R.W., P. J. Betton and J.W. Bristow (1984). Geochemistry and petrog enesis of the Lebombo rhyolites. Spec. Publ. Geol. Soc. S. Afr. 13, 171–194. Google Scholar
Cox, K.G. (1970). Tectonics and vulcanism of the Karroo period and their bearing on the postulated fragmentation of Gondwanaland. In African magmatism and tectonics (eds. T.N. Clifford and I.G. Gass), pp. 211–235. Oliver and Boyd. Edinburgh. Google Scholar
Cox, K.G. (1972). The Karroo volcanic cycle. J. Geol. Soc. Lond. 128, 311–336. Article Google Scholar
Cox, K.G. (1978a). Komatites and other high-magnesia lavas: some problems. Phil. Trans. R. Soc. Lond. A288, 599–609 Article Google Scholar
Cox, K.G. (1978b). Flood basalts, subduction and the break-up of Gondwanaland. Nature 274, 4749. Google Scholar
Cox, K.G. (1980). A model for flood basalt vulcanism. J. Petrology 21, 629–650. Article Google Scholar
Cox, K.G. (1983). The Karoo province of southern Africa: origin of trace element enrichment patterns. In Continental basalts and mantle xenoliths (eds. C.J. Hawkeswork and M.J. Norry), Shiva Geology Series, pp. 139–157. Google Scholar
Cox, K.G. and G. Hornung (1966). The petrology of the Karroo basalts of Basutoland. Amer. Miner. 51, 1414–32. Google Scholar
Cox, K.G. and B.G. Jamieson (1974). The olivine-rich lavas of Nuanetsi: a study of polybaric magmatic evolution. J. Petrologv 15, 269–301. Article Google Scholar
Cox, K.G. and P. Clifford (1982). Correlation coefficient patterns and their interpretation in three basaltic suites. Contrib Mineral. Petrol.79 268–278. Article Google Scholar
Cox, K.G. and J.W. Bristow (1984). The Sabie River Basalt Formation of the Lebombo monocline and south-east Zimbabwe. Spec. Publ. Geol. Soc. S. Afr. 13, 125–147. Google Scholar
Cox, K.G. and C.J. Hawkesworth (1985). Geochemical stratigraphy of the Deccan Traps at Mahabaleshwar, Western Ghats. India, with implications for open system magmatic processes. J. Petrology 26, 355–377. Article Google Scholar
Cox, K.G., R. Macdonald and G. Hornung (1967). Geochemical and petrographic provinces in the Karoo basalts of southern Africa. Amer. Miner. 52, 1451–1474. Google Scholar
Cox, K.G., A.R. Duncan, J.W. Bristow, S.R. Taylor and A.J. Erlank (1984). Petrogenesis of the basic rocks of the Lebombo. Snec. Publ. Geol. Soc. S. Afr. 13, 149–169. Google Scholar
Cox, K.G., R.L. Johnson, L.J. Monkman, C.J. Stillman, J.R. Vail and D.N. Wood (1965). The geology of the Nuanetsi ieneous province. Phil. Trans. R. Soc. Lond. A257, 71–218. Article Google Scholar
Darracott, B W. (1974). On the crustal structure of southeastern Africa and the adjacent Indian Ocean. Earth Planet. Sci. Lett. 24. 282–290. Article Google Scholar
DePaolo, D.J. (1981). Trace element and isotopic e ffec ts of combined w allrock ass imilation and frac tion al crystallisation. Earth P lanet. Sci. Lett. 53, 189–202. Article Google Scholar
Duncan, A.R., A.J. Erlank and J.S. Marsh (1984). Regional geochemistry of the Karoo igneous province. Spec. Puhl Geol. Soc. S. Afr. 13. 355–388. Google Scholar
Eales, H.V., J.S. Marsh and K.G. Cox (1984). The Karoo igneous province: an introduction. Spec. Publ. Geol. Soc. S Afr 1A, 1–26. Google Scholar
Erlank, A.J. (ed.) (1984). Petrogenesis of t he vo lcanic rocks of the Karoo province. Spec. Publ. No. 13. G eological Society of South Africa, 395 pp. Google Scholar
Erlank, A.J., H.L. Allsopp, A.R. Duncan and J.W. Bristow (1980). Mantle heterogeneity beneath southern Africa: evidence from the volcanic record. Phil. Trans. R. Soc. Lond. A297, 295–307. Article Google Scholar
Erlank, A.J., J.S. Marsh, A.R. Duncan, R. McG. Miller, C.J. Hawkesworth, P.J. Betton and D.C. Rex (1984). Geochemistry and petrogenesis of the Etendeka volcanic rocks from SWA/Namibia. Spec. Publ. Geol. Soc. S. Afr. 13, 195–245. Google Scholar
Fitch, F.J. and J.A. Miller (1984). Dating Karoo igneous rocks by the conventional K-Ar and 40Ar/39Ar age spectrum methods. Spec. Publ. Geol. Soc. S. Afr. 13, 247–266. Google Scholar
Flores, G. (1964). On the age of the Lupata rocks, Lower Zambezi river, Mozambique. Trans. Geol. Soc. S. Afr. 67, 111–118. Google Scholar
Foland, K.A. and Henderson, C.M.B. (1971). Application of age and strontium isotopic data to the petrogenesis of the Marangudzi ring complex, Rhodesia. Earth Planet. Sci. Lett. 29, 291–301. Article Google Scholar
Gough, D.I., A. Brock, O.L. Jones and N.D. Opdyke (1964). The paleomagnetissm of the ring complexes at Marangudzi and the Mateke Hills. J. Geophys. Res. 69, 2499–2507. Article Google Scholar
Hawkesworth, CJ., A.J. Erlank, J.S. Marsh, M.A. Menzies and P. van Calsteren (1983). Evolution of the continental lithosphere: evidence from volcanics and xenoliths in southern Africa. In Continental basalts and mantle xenoliths (eds. C.J. Hawkesworth and M.J. Norry), Shiva Geology Series. pp. 111–138. Google Scholar
Hawkesworth, CJ., J.S. Marsh, A.R. Duncan, A.J. Erlank and M.J. Norry (1984). The role of continental lithosphere in the generation of the Karoo volcanic rocks: evidence from combined Nd and Sr-isotope studies. Spec. Publ. Geol. Soc. S. Afr. 13, 341–354. Article Google Scholar
Henthorn, D.I. (1981). The magnetostratigraphy of the Lebombo Group along the Olifants River, Kruger National Park. Ann. Geol. Surv. S. Afr. 15, 1–10. Google Scholar
Huppert, H.E. and R.S.J. Sparks (1985). Cooling and contamination of mafic and ultramafic magmas during ascent through continental crust. Earth Planet. Sci. Leu. 74, 371–386. Article Google Scholar
Jaritz, W., J. Kreutzer, J. Muller and W. Harre (1977). Die Vulkanitserien in Küstengebiet von Nordmocambique. Geol. Jb. B26, 147–165. Google Scholar
Kyle, P.R. (1980). Development of heterogeneities in the subcontinental mantle: evidence from the Ferrar Group, Antarctica. Contrib. Mineral. Petrol. 73, 89–104. Article Google Scholar
Lock, B.E. (1980). Rat-plate subduction and the Cape Fold Belt of South Africa. Geology 8, 35–39. Article Google Scholar
Macdonald, R., R. Crossley and K.S. Waterhouse (1983). Karoo basalts of southern Malawi and their regional petrogenetic significance. Miner. Mag. 47, 281–289. Article Google Scholar
Manton, W.I. (1968). The origin of associated basic and acid rocks in the Lebombo-Nuanetsi igneous province, southern Africa, as implied by strontium isotopes. J. Petrologv 9. 23–29 Article Google Scholar
Mantovani, M.S.M., L.S. Marques, M.A. Sousa, L. Atalla, L. Civetta and F. Innocenti (1985). Trace element and strontium isotope constraints on the origin and evolution of Paraná continental flood basalts of Santa Catarina State (southern Brazil). J. Petrology 26, 187–209. Article Google Scholar
Marsh, J.S. and H.V. Eales (1984). The chemistry and petrogenesis of igneous rocks of the Karoo central area, southern Africa. Spec. Publ. Geol. Soc. S. Afr. 13, 27–67. Google Scholar
Martin, A.K. and C.H.J. Hartnady (1986). Plate tectonic development of the southwest Indian Ocean: a revised reconstruction of East Antarctica and Africa. J. Geophys. Res. 9. 4766–4786. Google Scholar
McKenzie, D. (1978). Some remarks on the development of sedimentary basins. Earth Planet. Sci. Lett. 40 25–12 Article Google Scholar
McKenzie, D. (1984). A possible mechanism for epeirogenic uplift. Nature 307, 616–618. Article Google Scholar
Menzies, M.A. and V.R. Murthy (1980). Enriched mantle: Nd and Sr issotopes in diopsides from kimberlite nodules. Nature 283, 634–636. Article Google Scholar
Nicolaysen, L.O., A.J. Burger and R.L. Johnson (1962). The age of the Shawa carbonatite complex. Trans. Geol. Soc. S. Afr. 65, 293–294. Google Scholar
Norton, I.O. and J.G. Sclater (1979). A model for the evolution of the Indian Ocean and the breakup of Gondwanaland. J. Geophys. Res. 84, 6803–6830. Article Google Scholar
Pearce, J.A. (1983). Role of the sub-continental lithosphere in magma genesis at active continental margins. In Continental basalts and mantle xenoliths (eds. C.J. Hawkesworth and M.J. Norry), Shiva Geology Series, pp. 230–249. Google Scholar
Pearce, J.A., N.B.W. Harris and A.G. Tindle (1984). Trace element discrimination diagrams for the tectonic interpretation of granitic rocks. J. Petrology 25, 956–983. Article Google Scholar
Rabinowitz, P.D., M.F. Coffin and D. Falvey (1983). The separation of Madagascar and Africa. Science 220, 67–69. Article Google Scholar
Reeves, C.V. (1978). A failed Gondwana spreading axis in southern Africa. Nature 273, 222–223. Article Google Scholar
Richardson, S.H., J.J. Gurney, A.J. Erlank and J.W. Harris (1984). Origin of diamonds in old enriched mantle. Nature 310, 198–202. Article Google Scholar
Ridgway, J. and N.J. Money (1978). Karoo basalts from western Zambia and geochemical provinces in central and southern Africa. Geol. Surv. Zambia, occ. Pap. 75. Google Scholar
Ségoufin, J. (1978). Anomalies magneiques Mésozoiques dans le bassin Mozambique. C.R. Acad. Sci. Paris série D287. 109–112. Google Scholar
Siders, M.A. and D.H. Elliott (1985). Major and trace element geochemistry of the Kirkpatrick Basalt, Mesa Range, Antarctica. Earth Planet. Sci. Lett. 72, 54–64. Article Google Scholar
Siedner, G. and J.G. Mitchell (1976). Episodic Mesozoic vulcanism in Namibia and Brazil: a K-Ar isochron study bearing on the opening of the South Atlantic. Earth Planet. Sci. Lett. 30, 292–302. Article Google Scholar
Tankard, A.J., M.P.A. Jackson, K.A. Eriksson, D.K. Hobday, D.R. Hunter and W.E.L. Minter (1982). Crustal evolutionof southern Africa. Springer-Verlag, New York. 523 pp. Book Google Scholar
Thirlwall, M.F. and N.W. Jones (1983). Isotope geochemistry and contamination mechanics of Tertiary lavas from Skye, northwest Scotland. In Continental basalts and mantle xenoliths (eds. C.J. Hawkesworth and M.J. Norry), Shiva Geology Series, pp. 186–208. Google Scholar
Van Zijl, J.S.V., K.W.T. Graham and A.L. Hales (1962). The paleomagnetism of the Stormberg Lavas of South Africa, I and II. J. Geophys. J. R. Astr. Soc. 7, 23–29 and 169–182. Article Google Scholar
Woolley, A.R. and M.S. Garson (1970). Petrochemical and tectonic relationship of the Malawi carbonatite-alkaline province and the Lupata-Lebombo volcanics. In African magmatism and tectonics (eds. T.N. Clifford and I.G. Gass), pp. 237–262. Oliver and Bovd, Edinburgh. Google Scholar
Woolley, A.R., J.C. Bevan and C.J. Elliott (1979). The Karoo dolerites of southern Malawi and their regional geochemical implications. Miner. Mag. 43, 487–495. Article Google Scholar