Журналы →  Gornyi Zhurnal →  2015 →  №1 →  Назад

ABROAD
Название Offshore diamond exploration and mining in Central Namibia
DOI 10.17580/gzh.2015.01.16
Автор Mukhin P. A., Rau G., Franceschini G.
Информация об авторе

Author 1:

Name & Surname: Mukhin P. A.
Company: SRK Consulting Ltd. (Almaty, Kazakhstan)
Work Position: Chief Geologist
Scientific Degree: Candidate of Geologo-Mineralogical Sciences
Contacts: e-mail: pmukhin@srk.kz

 

Author 2:
Name & Surname: Rau G.
Company: Sakawe Mining Corporation Samicor (Cape Town, South Africa)
Scientific Degree: Master of Science in Geology
Work Position: Chief Geologist

 

Author 3:

Name & Surname: Franceschini G.
Company: Educandato Statale Collegio Uccellis (Trieste, Italy)
Work Position: Lecturer
Scientific Degree: Doctor of Mineralogical Sciences

Реферат

Article represents extensive, well-reasoned and illustrated study summarizing the history and development of diamond exploration along coastal shelf of Central Namibia — from divers to modern and effective methods of technical and technological systems for prospecting, exploration and production. Based on the published data and the experience of leading diamond-mining companies, the authors formulate the modern concept of genesis, geological characteristics, assumptions and factors, detection of offshore diamond deposits, exploration, testing, evaluation and development. The article discusses underwater equipment, technologies and methods of exploration and extraction of diamonds, as well as the organizational, technical and laboratory (including mapping) software works with the use of IP-based technologies, devices and equipment. The prospects and the main directions of further development of underwater diamond mining are also discussed. Summarizing the experience of exploration, prospecting and underwater diamond mining activities in Namibia, the article represents essentially methodological manual and in this context is relevant for countries and companies interested in the development of underwater mineral resources shelves. The authors express their gratitude to the Director Board and the General Director (E. Nafussi) of Samicor Ltd for the opportunity to use the company data on underwater diamond operations and permission for the publication. The authors are also grateful to the General Director of SRK Consulting (Kazakhstan) Ltd. T. Thornton for comprehensive support for the publication of the article.

Ключевые слова Offshore Namibia diamonds, diamond mining companies, prospecting, exploration, sampling, mining, traps, vessels, rope airlift, crawler, drilling, content and size of diamonds
Библиографический список

1. Ministerstvo Gornoy promyshlennosti Respubliki Namibiya (Ministry of Mining of Republic of Namibia). Available at: http://www.chamberofmines.org.na/ (accessed: March 11, 2014). 

2. Williams R. King of Sea Diamonds: The saga of Sam Collins. Flesch Publications. Cape Town, South Africa, 1996. 231 p. 

3. Richardson K. A perspective of marine mining within DeBeers. Journal of The Southern African Institute of Mining and Metallurgy. 2007. Vol. 107. pp. 393–402. 

4. Diamond Field International Ltd. Available at: http://www.diamondfields.com/s/Namibia.asp?reportID=88890 (accessed: March 11, 2014). 

5. Merensky H. Die Diamantvorkomeen in Luderitzland. Edited by Krahmann. Deitsch Sudwestafrika, 1909. 223 p.

6. Wagner P. A. The diamond fields of southern Africa. Johannesburg : The Transvall leader, 1914. 347 p. 

7. Lotz H. Randglossen zur deutschen Diamantenproduktion. Koloniale Rundschau, 1912. 

8. Sutherland D. G. The transport and sorting of diamonds by fluvial and marine process. Economic Geology. 1982. Vol. 77. pp. 1613–1620. 

9. Corbett I. B. A review of diamondiferous marine deposits of west southern Africa. Africa Geosciences Review. 1996. No. 3. pp. 157–174. 

10. Mukhin P. Depositional models for diamond placers in the Namibia shelf. International Conference “Mineral Deposits of continental shelves” : Abstracts. St. Petersburg, 2005. p. 25. 

11. Rau G. The integrated use of detailed geophysical, geological and oceanographic techniques to delineate and prioritize marine diamond placer deposits on the inner shelf, west coast, central Namibia: EPL 1950 (Hottentot Bay) : a case study. Unpublished MSc Thesis. Grahamstown, South Africa : Rhodes University, 2003. 139 p. 

12. Clifford T. N. Tectono metallogenic units and metallgenic province of Africa. Earth and planetary Science Letters. 1966. Vol. 1. pp. 421–434. 

13. Moore J. M., Moore A. E. The role of primary kimberlitic and secondary Dwyka glacial sources in the development of alluvial and marine deposits in southern Africa. Journal of African Earth Sciences. 2004. Vol. 38. pp. 115–134.

14. De Wit M. C. J. Post Gondwana drainage and the development of diamond placers in western South Africa. Economic Geology. 1999. Vol. 94. pp. 721–740.

15. Visser J. N. J. The Dwyka Formation along the northwestern margin of the Karoo Basin in the Cape Province, South Africa. Transactions of Geological Society of South Africa. 1985. Vol. 88. pp. 37–48.

16. De Villiers J., S nghe A.P.G. The Geology of the Rictersveld. Menoir Geological Survey. 1959. Vol. 48. 295 p. 

17. Levinson A. A., Gurney J. J., Kirkley M. B. Diamonds sources and production: past, present, and future. Gems and Gemology. 1992. Vol. 28. pp. 234–254.

18. Gurney J. J., Levinson A. A., Smith H. S. Marine Mining of Diamonds off the West Coast of Southern Africa. Gems and Gemology. 1991. Vol. 27, No. 4. pp. 206–219.

19. De Decker R. H. The geological setting of diamondiferous deposits on the inner shelf between the Orange River and Wreckpoint, Namaqualand. Bulletin of the Geological Survey of South Africa. 1986. pp. 86–99.

20. Shmakov I. I., Bozhko E. N. Proiskhozhdenie morskikh rossypey almazov Namibii (Origin of sea placers of Namibia diamonds). Vestnik Voronezhskogo gosudarstvennogo universiteta. Seriya: Geologiya = Bulletin of Voronezh State University. Series: Geology. 2008. No. 1.pp. 116– 126.

21. Ward J. D. The Cenozoic succession in the Kuiseb Valley. Geological Survey of South West Africa. 1987. 124 p.

Language of full-text русский
Полный текст статьи Получить
Назад