Karoo basalts in the Ellisras sub-basin, Northern Province

South African Journal of Geology

Volumn 100, Issue 2, 1997, Pages 151-156

  Reid, D L ^a   Rex, D C ^b   Brandl, G ^c  

^a UNIVERSITY OF CAPE TOWN   (South Africa)

^b UNIVERSITY OF LEEDS   (United Kingdom)

^c Western Cape Regional Office   (South Africa)

Author keywords

[No Author keywords available]

Indexed keywords

BASALT; GEOCHEMISTRY; PETROLOGY; POTASSIUM/ARGON DATING; PROVENANCE;

SOUTH AFRICA, NORTHERN PROVINCE, ELLISRAS SUBBASIN;

EID: 0031436761     PISSN: 10120750     EISSN: None     Source Type: Journal    
DOI: None     Document Type: Article

References (21)

1. Brandi, G. (1996). The geology of the Ellisras area: Expl. Sheet 2326 (Ellisras). Geol Surv. S. Afr., 48 pp.
2. Bristow, J.W. (1984a). Nephelinities of the North Lebombo and South-East Zimbabwe. In: Erlank, A.J. (Ed.), Petrogenesis of the Volcanic Rocks of the Karoo Province. Spec. Publ. geol. Soc. S. Afr., 13, 87-104.
3. _ (1984b). Picritic rocks of the North Lebombo and South-East Zimbabwe. In: Erlank, A.J. (Ed.), Petrogenesis of the Volcanic Rocks of the Karoo Province. Spec. Publ. geol. Soc. S. Afr., 13, 105-124.
4. Cox, K.G. (1992). Karoo igneous activity, and the early stages of the breakup of Gondwanaland. In: Storey, B.C., Alabaster, T. & Pankhurst, R.J. (Eds.), Magmatism and the Causes of Continental Break-up. Spec. Publ. geol. Sec., 68, 137-148.
5. _ & Bristow, J.W. (1984). The Sabie River Basalt Formation of the Lebombo monocline and South-East Zimbabwe. In: Erlank, A.J. (Ed.), Petrogenesis of the Volcanic Rocks of the Karoo Province. Spec. Publ. geol. Soc. S. Afr., 13, 125-148.
6. Duncan, A.R., Erlank, A.J. & Betton, P.J. (1984a). Analytical techniques and database descriptions. In: Erlank, A.J. (Ed.), Petrogenesis of the Volcanic Rocks of the Karoo Province. Spec. Publ. geol. Soc. S. Afr., 13, 389-395.
7. _, Erlank, A.J. & Marsh, J.S. (1984b). Regional geochemistry of the Karoo igneous province. In: Erlank, A.J. (Ed.), Petrogenesis of the Volcanic Rocks of the Karoo Province. Spec. Publ. geol. Soc. S. Afr., 13, 355-387.
8. Eales, H.V., Marsh, J.S. & Cox, K.G. (1984). The Karoo igneous province: an introduction. In: Erlank, A.J. (Ed.), Petrogenesis of the Volcanic Rocks of the Karoo province. Spec. Publ. geol. Soc. S.Afr, 13, 1-26.
9. 39 Ar age spectrum methods. In: Erlank, A.J. (Ed.), Petrogenesis of the Volcanic Rocks of the Karoo Province. Spec. Publ. geol. Soc. S. Afr., 13, 247-266.
10. Le Measurier, W.E. & Rex, D.C. (1991). Tectonic significance of linear volcanic ranges in Marie Byrd Land in late Cenozoic time. In: Thompson, M.R.A., Crame, J.A. & Thompson, J.W. (Eds.), Geological Evolution of Antarctica. Cambridge Univ. Press., Cambridge, 531-532.
11. Marsh, J.S. & Eales, H. V. (1984). The chemistry and petrogenesis of igneous rocks of the Karoo central area, southern Africa. In: Erlank, A.J. (Ed.), Petrogenesis of the volcanic rocks of the Karoo Province. Spec. Publ. geol. Soc. S. Afr., 13, 27-68.
12. _, Hooper, P.R., Rehacek, J., Duncan, R.A. & Duncan, A.R. (1995). The building of Lesotho - New geochemical, palaeomagnetic and age data from Karoo basalts in Lesotho and implications for correlations within the Karoo Igneous Province. Abstr. Univ. Cape Town Centenary Corf., Dept. geol. Sci., unpaginated.
13. Norrish, K. & Chappell, B.W. (1972). X-ray fluorescence spectrometry. In: Zussman, J. (Ed.), Physical Methods in Determinative Mineralogy. Academic Press, Lond., 201-272.
14. _ & Hutton, I.T. (1969). An accurate X-ray spectrographic method for the analysis of a wide range of geological samples. Geochim. Cosmachim. Acta, 33, 431-453.
15. Pearce, J.A. (1982). Trace element characteristics of lavas from destructive plate margins. In: Thorpe, R.S. (Ed.), Andesites. John Wiley & Sons, Lond., 525-548.
16. Siepker, E.H. (1986). Genetiese straigrafie en sedimentologie van die Opeenvolging Karoo in die westelike and noordelike deel van die Waterbergsteenkoolveld. M.Sc. thesis (unpubl.), Rand Afrikaans Univ., Johannesburg, 177 pp.
17. Sweeney, R.J. & Watkeys, M.K. (1990). A possible link between Mesozoic lithospheric architecture and Gondwana flood basalts. J. Afr. Earth Sci., 10, 707-716.
18. _, Duncan, A.R. & Erlank, A.J. (1994). Geochemistry and petrogenesis of central Lebombo basalts of the Karoo Igneous Province. J. Petrol., 35, 95-125.
19. Thornton, C.P. & Tuttle, O.P. (1960). Chemistry of igneous rocks. I. Differentiation Index. Am. J. Sci., 258, 664-684.
20. Wigley, R. (1995). The geochemistry of the Karoo-aged igneous volcanic and intrusive rocks of Botswana. M.Sc. thesis (unpubl.), Univ. Cape Town, 177 pp.
21. Yoder, H.S. & Tilley, C.E. (1962). Origin of basaltic magmas: An experimental study of natural and synthetic rock systems. J. Petrol., 3, 342-532.