SciELO - Scientific Electronic Library Online

 
vol.114 número3Kriging, indicators, and nonlinear geostatisticsCapping and kriging grades with long-tailed distributions índice de autoresíndice de materiabúsqueda de artículos
Home Pagelista alfabética de revistas  

Servicios Personalizados

Articulo

Indicadores

Links relacionados

  • En proceso de indezaciónCitado por Google
  • En proceso de indezaciónSimilares en Google

Compartir


Journal of the Southern African Institute of Mining and Metallurgy

versión On-line ISSN 2411-9717

Resumen

PRINS, C.F.  y  JACOB, J.. Improved varicography using simulated annealing to adjust sample locations to align with diamondiferous linear beach structures. J. S. Afr. Inst. Min. Metall. [online]. 2014, vol.114, n.3, pp. 251-254. ISSN 2411-9717.

At Namdeb, submerged beaches are earmarked for sampling and future mining and various sampling configurations are tested for optimality through the use of spatial simulations. For the creation of these virtual orebodies, basic statistics and variograms are needed, but in this specific instance no data exists from which the necessary parameters can be determined. The best that can be done is to use proxy data from onshore beaches, with adaptations where needed. The reworking of raised beaches during periods of rising and falling sea levels in some cases destroyed the internal beach structures, and it is very difficult to determine the variograms. A method is proposed whereby simulated annealing is used to adjust the sample locations to align the data pertaining to beach crests or cliff lines, thus improving the variogram structure along the shoreline in the direction of the highest geological continuity.

Palabras clave : submerged beaches; simulated annealing; variography.

        · texto en Inglés

 

Creative Commons License All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License