Rock-strength and physical properties of norites of the merensky and bastard units, western Bushveld Complex

South African Journal of Geology

Volumn 108, Issue 4, 2005, Pages 525-540

  Wilson, A H ^a   Jermy, C A ^a   Ridgeway, M ^a   Chunnett, G ^a,b  

^a UNIVERSITY OF KWAZULU NATAL   (South Africa)

^b Anglo Platinum South Africa   (South Africa)

Author keywords

[No Author keywords available]

Indexed keywords

CHEMICAL COMPOSITION; IGNEOUS GEOCHEMISTRY; NORITE; PHYSICAL PROPERTY; ROCK MECHANICS;

AFRICA; BUSHVELD COMPLEX; SOUTH AFRICA; SOUTHERN AFRICA; SUB-SAHARAN AFRICA;

EID: 33646245939     PISSN: 10120750     EISSN: None     Source Type: Journal    
DOI: 10.2113/108.4.525     Document Type: Article

References (38)

1. Anon, (1977). The description of rock masses for engineering purposes. Working Parry Report. Quarterly Journal of Engineering Geology, 10, 355-388.
2. Atkinson, B.K. (1984). Subcritical crack growth in geological materials. Journal of Geophysical Research, 89, 4077-4114.
3. Attewell, P.B. and Sandford, M.R. (1974). Intrinsic shear strength of a brittlle anisotropic rock 1. Experimental and mechanical interpretation. International Journal of Rock Mechanics and Mining Science, 11, 423-430.
4. Bell, F.G. (2000). Engineering Properties of Soils and Rocks. Blackwell Science, Oxford, United Kingdom.
5. Benn, A. and Allard, B. (1989). Preferred mineral orientations related to magmatic flow in ophiolite layered gabbros. Journal of Petrology, 30, 925-946.
6. Bieniawski, Z. T. and Hawkes, I. (1978). Suggested methods for determining tensile strength of rock materials, for ISRM Commision of Laboratory and Field Tests. International Journal of Rock Mechanics and Minerals Science, 15, 99-103.
7. Brace, W.F. (1961). Dependence of fracture strength of rocks on grain size. Bulletin of Industrial Minerals, 76, 99-103.
8. Brace, W.F. (1965). Some new measurements on linear compressibility of rocks. Journal of Geophysical Research, 70, 391-398.
9. Broch, E. (1979). Changes in rock strength caused by water. In: Proceedings of the 4th International Conference of Rock Mechanics, Montreaux, France, 71-76.
10. Brown, E.T. (1981). Rock Characterization and Testing and Monitoring, Pergamon Press, Oxford, United Kingdom, 211pp.
11. Brown, E.T. Richards, L.R. and Barr, M.V., (1977). Shear strength characteristics of the Delabole Slates. In: Proceedings of the Conference of Rock Engineering, Newcastle upon Tyne, United Kingdom, 33-51.
12. Brown, R.T. (2004). Mafic and ultramafic rocks of the Bushveld Complex: a note on their classification and nomenclature, 77pp., Anglo Platinum Internal Report.
13. Buick, I.S., Maas, R. and Gibson, R. (2001). Precise U-Pb titanite age constraints on the emplacement age of the Bushveld Complex, South Africa. Journal of the Geological Society of London, 158, 3-6.
14. Campbell, I.H. (1987). Distribution of orthocumulate textures in the Jimberlana intrusion. Journal of Geology, 95, 35-54.
15. Campbell, I.H. (1996). Fluid dynamic processes in magma chambers. In: R. G. Cawthorn (Editor), Layered Intrusions, Elsevier, The Netherlands, 45-76.
16. Cawthorn, R.G. (1996). Models for incompatible trace element abundances in cumulus minerals and their application to plagioclase and pyroxenes in the Bushveld Complex. Contributions to Mineralogy and Petrology, 123, 109-115.
17. Donath, F.A. (1961). Experimental study of shear failure in anisotropic rocks. Bulletin of the Geological Society of America, 72, 985-991.
18. Eales, H.V. and Cawthorn, R. G. (1996). The Bushveld complex. In: R.G. Cawthorn (Editor), Layered Intrusions, Elsevier, The Netherlands, 181-230.
19. Fairhurst, C. and Cooke, N.G.W. (1966). The phenomenon of rock splitting parallel to a free surface under compressive stress. Proceedings of the First Congress of the International Society of Rock Mechanics, Lisbon, Portugal, 1, 687-692.
20. Gillespie, M.R. and Styles, M.T. (1999). BGS Rock Classification Scheme Volume 1: Classification of Igneous Rocks, British Geological Survey Research Report, RR99-06, 52pp.
21. Griffith, E.W. (1921). The phenomena of rupture and flow in solids. Philosophical Transactions of the Royal Society of London, A221, 163-198.
22. Griggs, D.T. (1951). Deformation of Yule Marble. Bulletin of the Geological Society of America, 62, 853-862.
23. Hoek, E. (1965). Rock fracture under static stress conditions, National Mechanical Engineering Research Institute C.S.I.R., Pretoria, South Africa, 383pp.
24. Hoek, E. and Brown, E.T. (1997). Empirical strength criterion for rock mass. Proceedings of the American Society for Civil Engineers, Journal of Geotechnical Engineering Division, 106, 1013-1035.
25. Hunter, R.H. (1996). Texture development in cumulate rocks. In: R.G. Cawthorn (Editor), Layered Intrusions, Elsevier, The Netherlands, 77-102.
26. Jaeger, J.C. and Cooke, N.G.W. (1977). Fundamentals of Rock Mechanics. Chapman and Hall, New York, United States of America, 585pp.
27. Le Maitre, R.W. (1989). A Classification of Igneous Rocks and Glossary of Terms, Blackwell Scientific, Oxford, United Kingdom, 193pp.
28. Martin, C.D. and Chandler, N.A. (1994). The progressive failure of Lac duc Bonnet granite. 7-be International Journal of Rock Mechanics, Mining Science and Geomechanical Abstracts, 30, 643-659.
29. Nicolas, A. (1992). Kinematics in magmatic rocks with special reference to gabbros. Journal of Petrology, 33, 891-916.
30. Onodera, T.F. and Kumara, A.H.M. (1980). Relationship between texture and mechanical properties of crystalline rocks. Bulletin International Association of Engineering Geology, 22, 173-177.
31. Ramamurthy, T., Venkatappa, R.G. and Singh, J. (1993). Engineering behaviour of phyllites. Engineering Geology, 33, 209-225.
32. Rice, C. M. (1963). Dictionary of Geological Terms. Pinceton University Press, Princeton, New Jersey. 465pp.
33. Turk, N. and Dearman, W. R. (1986. Influence of water on engineering properties of weathered rock. In: J.C. Cripps, F.G. Bell and M.G. Culshaw (Editors), Groundwater in Engineering Geology, Geological Society, London, United Kingdom, 131-139.
34. Wager, L.R. and Brown, G.M. (1968). Layered igneous rocks. Oliver and Boyd, Edinburgh. 588pp.
35. Willard, R.J. and McWilliams, J.R. (1969). Microstructural techniques in the study of physical properties of rocks. International Journal of Rock Mechanics and Mining Sciences, 6, 1-12.
36. Wilson, A.H. (1982). The geology of the Great Dyke, Zimbabwe: the ultramafic rocks. Journal of Petrology, 23, 240-292.
37. Wilson, A.H. (1992). The geology of the Great Dyke, Zimbabwe: Crystallization, layering, and cumulate formation in the P1 Pyroxenite of cyclic unit 1 of the Darwendale Subchamber. Journal of Petrology, 33, 611-663.
38. Wilson, A.H. (2001). Compositional and lithological controls on the PGE - bearing sulphide zones in the Selukwe Subchamber, Great Dyke: a combined equilibrium - Rayleigh fractionation model. Journal of Petrology, 42, 1845-1867.