For starters you may want to read about "support" or the "volume-variance relationship" to get a feel for what is going on. A freebie on this may be found at http://uk.geocities.com/drisobelclark/practica.html
Isobel Clark's 1979 Practical Geostatistics chapter 3 titled "The Volume-Variance Relationship". In essence larger samples can be expected to have smaller variances.
"Nel, Fanie" wrote:
> Dear List,
> I want to krig a ore body that has been sampled twice. Samples taken during
> the second campaign are almost five times as big as that taken initially.
> How can I krig this? Should the large samples receive more weight?
> Thank You
> Fanie Nel
William V. Harper, Mathematical Sciences, Otterbein College
Towers Hall 136, One Otterbein College
Westerville, OH 43081-2006 USA 614-823-1417 Fax: 614-823-3201
Faculty page: http://www.otterbein.edu/home/fac/WLLVHRPR/
For the best in geostatistics: http://geoecosse.hypermart.net/
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