会议专题

SAMTEX: The electrical lithosphere of Southern Africa

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The Southern African Magnetotelluric Experiment (SAMTEX) is imaging the properties and geometries of the lithosphere below southern Africa to depths of 200+ km. Electrical conductivity is highly sensitive to ambient temperature, e.g. (Ledo and Jones 2005) and to the presence of an interconnected conducting phase, such as a solid phase like graphite or sulphides, e.g. (Ducea and Park 2000; Jones et al. 2003) or a fluid phase like partial melt, e.g.(Park and Ducea 2003), or bound water through hydrogen diffusion, e.g. (Hirth et al. 2000). Thus one primary geometrical piece of information that can be readily obtained from lithospheric-scale MT experiments is the depth to the lithosphere-asthenosphere boundary (LAB).

Archean cratonic lithosphere Southern Africa SAMTEX lithosphere-asthenosphere boundary (LAB)

Alan G Jones C J S Fourie Moctar Doucoure Andy Mountford Wayne Pettit Sue Webb Jan Wasborg The SAMTEX Team Mark R Muller Mark P Hamilton Marion P Miensopust Colin Hogg Rob L Evans Patrick Cole Tiyapo Ngwisanyi Dave Hutchins

Dublin Institute for Advanced Studies, 5 Merrion Square, Dublin, Ireland Council for Scientific and Industrial Research, Pretoria, RSA De Beers Group Services, Private Bag X01, Southdale 2135, South Africa Rio Tinto Mining and Exploration, London, U.K. BHP Billiton, Johannesburg, RSA University of the Witwatersrand, 6 Hollard Street, Johannesburg 2001, RSA ABB AB, HVDC, Ludvika, SE-77180, Sweden Other members of the SAMTEX team include: Louise Collins, Xavier Garcia, Clare Horan, Jessica Spratt Dublin Institute for Advanced Studies, 5 Merrion Square, Dublin, Ireland;University of the Witwaters Department of Geology and Geo-physics, Woods Hole Oceanographic Institution, Clark South 172, 360 Wo Council for Geoscience, 280 Pretoria Street, Silverton, Pretoria 0001, RSA Geological Survey of Botswana, Private Bag 14, Lobatse, Botswana Geological Survey of Namibia, 1 Aviation Road, Windhoek, Namibia

国际会议

The 19th International Workshop on Electromagnetic Induction in the Earth(第十九届国际地球电磁感应学术研讨会)

北京

英文

225-228

2008-10-23（万方平台首次上网日期，不代表论文的发表时间）