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Descripción : M.G.C.Wilson / C.R.Anhaeusser (editors) - The Mineral Resources Of South Africa Demy 4to (210x295) An exhaustive 740pp. volume 'commemorating a hundred years of geological research since the founding of the Geological Commission of the Cape of Good Hope in 1895 the Transvaal Geological Survey in 1897 and the Natal Geological Survey in 1899' containing detailed studies of all South Africa's minerals alphabetically arranged from Aluminium to Zirconium a comprehensive index of mines and their minerals and with colour-coded diagrams and maps (some fold-out) as well as sections dealing with Legislation and Environmental considerations Extractive Metallurgy Economic Geology and an Appendix on South African land and mining units (by G.Levin) and a Mineral Production and Sales/Exports table dated 1995. Of particular interest is the section on Oil and Gas specifically the notes and diagrams on the Karoo Basin (pp.483-494) in light of the recent exploration in this area by the large oil companies and a report is documented on SOEKOR's tests in this area in the 1960's with the summary A fairly extensive seismic survey was undertaken by SOEKOR in the southern part of the basin and a dozen deep holes were drilled. Minor high-pressure gas was encountered in most holes drilled in the southern part of the basin but the only show of significance occurred in a borehole near Pearston (Cr1/68) where methane gas flowed strongly out of fractured Upper Ecca shales for a short time. Due to the generally negative results during early exploration attention was increasingly focused on the northern part of the Karoo basin after 1969. (p.487), for more info see condition: very good (near fine) with minor edge marks a crease along the length of the spine and owner inscription at top right corner of f.f.e-p. Printed on good quality matt paper. Very Good Silverton Council for Geoscience 1998
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