A fractal relationship between vein thickness and gold grade in drill core from La Codosera, Spain
Sanderson, David J., Roberts, Stephen and Gumiel, Pablo (1994) A fractal relationship between vein thickness and gold grade in drill core from La Codosera, Spain. Economic Geology, 89, (1), 168-173. (doi:10.2113/gsecongeo.89.1.168).
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Analysis of quartz vein thicknesses and gold grades in drill core from western Spain indicates that both approximate a power law distribution, suggesting an underlying fractal relationship. Log-log plots of cumulative frequency (N) against vein thickness (t) show systematic changes in relation to gold grade. The exponent D, in a power law of the form N = C t (super -D) , is lower for higher gold grades, indicating that a greater proportion of the dilation is taking place on the thicker veins, which are interpreted as providing interconnected conduits for gold-bearing fluids. Thus, monitoring the vein thickness distribution may provide a means of discriminating mineralized and barren structures in vein-hosted mineral deposits.
|Subjects:||Q Science > QE Geology
G Geography. Anthropology. Recreation > GB Physical geography
T Technology > TA Engineering (General). Civil engineering (General)
|Divisions:||University Structure - Pre August 2011 > School of Civil Engineering and the Environment
|Date Deposited:||11 Mar 2010|
|Last Modified:||25 Apr 2013 20:56|
|Contributors:||Sanderson, David J. (Author)
Roberts, Stephen (Author)
Gumiel, Pablo (Author)
|Date:||1 February 1994|
|RDF:||RDF+N-Triples, RDF+N3, RDF+XML, Browse.|
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