Rock surfaces temperatures in southern Namibia and implications for thermally-driven physical weathering

Zeitschrift fur Geomorphologie

Volumn 51, Issue SUPPL. 1, 2007, Pages 133-147

  Sumner, Paul D ^a   Hedding, David W ^b   Meiklejohn, K Ian ^a  

^a UNIVERSITY OF PRETORIA   (South Africa)

^b NORTH WEST UNIVERSITY   (South Africa)

Author keywords

[No Author keywords available]

Indexed keywords

AIR TEMPERATURE; BOULDER; GNEISS; GRANITE; INSELBERG; LABORATORY METHOD; MEASUREMENT METHOD; MODELING; MOISTURE; ROCK; TEMPERATURE EFFECT; WEATHERING;

AFRICA; NAMIB DESERT; NAMIBIA; SOUTHERN AFRICA; SUB-SAHARAN AFRICA;

EID: 38649138332     PISSN: 03728854     EISSN: None     Source Type: Journal    
DOI: 10.1127/0372-8854/2007/0051S-0133     Document Type: Article

References (24)

1. BAUER, S.J. & JOHNSON, B. (1979): Effects of slow uniform heating on the physical properties of the Westerly and Charcoal granites. - Proc. 20th U.S.Symp. Rock Mech., Austin, Texas, 7-18.
2. BOELHOUWERS, J. C. (2004): New perspectives on autochthonous blockfield development. - Polar Geog. 28: 133-146.
3. CHEN, Y. & CHI-YEN, W. (1980): Thermally-induced acoustic emission in westerly granite. - Geophys. Res. Let. 7: 1089-1092.
4. GOUDIE, A. S. (1997): Weathering processes. - In: THOMAS, D. S. G. (Ed.): Arid Zone Geomorphology, 2nd ed., 25-39; Wiley.
5. HALL, K.J. (1999): The role of thermal stress fatigue in the breakdown of rock in cold regions. - Geomorph. 31: 47-63.
6. HALL, K.J. (2003): Micro-transducers and high-frequency rock temperature data: changing our perspectives on rock weathering in cold regions. - In: PHILLIPS, M., SPRINGMAN S. M. & ARENSON, L. U. (eds.): Permafrost, Proc. 8th Internat. Conf. Perm., 349-354.
7. HALL, K.J. & ANDRÉ, M.-F. (2001): New insights into rock weathering from high-frequency rock temperature data: an Antarctic study of weathering by thermal stress. - Geomorphology 41: 23-35.
8. HALL, K.J. & ANDRÉ, M.-F. (2003): Rock thermal data at the grain scale: applicability to granular disintegration in cold environments. - Earth Surf. Proc. Land. 28: 823-836.
9. HALL, K. J., THORN, C. E., MATSUOKA, N. PRICK, A. (2002): Weathering in cold regions: some thoughts and perspectives. - Prog. Phys. Geog. 26: 577-603.
10. KERR, A., SMITH, B. J., WHALLEY, W, B. & McGREEVY, J. P. (1984): Rock temperatures from southeast Morocco and their significance for experimental rock-weathering studies. - Geol. 12: 306-309.
11. McGREEVY, J. P. (1985): Thermal properties as controls on rock surface temperature maxima, and possible implications for rock weathering. - Earth Surf. Proc. & Land. 10: 125-136.
12. MEIKLEJOHN, K. I. (1994): An investigation into aspects of the weathering of Clarens Formation sandstone in the KwaZulu/Natal Drakensberg: Implications for the preservation of indigenous rock art. - Unpubl. Ph.D. thesis, Univ. of Natal, Pietermaritzburg, 293 pp.
13. OLLIER, C. (1984): Weathering. - Longman, London, 270 pp.
14. PEEL, R. F. (1974): Insolation weathering: some measurements of diurnal temperature changes in exposed rocks in the Tibesti region, central Sahara. - Z. Geomorph. N. F. Suppl. 21: 19-28.
15. RICHTER, D. & SIMMONS, G. (1974): Thermal expansion behaviour on igneous rocks. - Int. J. Rock Mech. Min. Sci. Geomech. Abs. 11: 403-411.
16. ROTH, E. S. (1965): Temperature and water content as factors in desert weathering. - J. Geol. 73: 454-468.
17. SMITH, B.J. (1977): Rock temperature measurements from the northwest Sahara and their implications for rock weathering. - Catena 4: 41-63.
18. SMITH, B.J. (1994): Weathering processes and forms. - In: ABRAHAMS, A. D. & PARSONS, A. J. (eds.): Geomorphology of Desert Environments: 39-63; Chapman & Hall.
19. SMITH, B. J., WARKE, P. A., McGREEVY, J. P. & KANE, H. L. (2005): Salt-weathering simulations under hot desert conditions: agents of enlightenment or perpetuators of preconceptions? - Geomorphology 67: 211-227.
20. SUMNER, P. D., MEIKLEJOHN, K. I., NEL, W. & HEDDING, D. W. (2004): Thermal attributes of rock weathering: zonal or azonal? A comparison of rock temperatures in different environments. - Polar Geog. 28: 79-92.
21. TALBOT, C.J. & AFRABI, P. (2004): Geology and models of salt extrusions at Qum Kuh, central Iran. - J. Geol. Soc. Lond. 161: 321-334.
22. VILES, H. A. (2005): Microclimate and weathering in the Central Namib Desert, Namibia. - Geomorph. 67: 189-209.
23. YATSU, E. (1988): The Nature of Weathering: An Introduction. - Sozosha, Tokyo, 624 pp.
24. YONG, C. & WANG, C. Y. (1980): Thermally induced acoustic emission in Westerly granite. - Geophys. Res. Let. 7: 1089-1092.