Application of categorical variables to improve estimation in the Amapari Lateritic  Gold Mine, Brazil Francisco J. da Sil...
DATA Eight International Geostatistics Congress. Santiago, Chile,  December 1-5, 2008
Eight International Geostatistics Congress. Santiago, Chile,  December 1-5, 2008
Eight International Geostatistics Congress. Santiago, Chile,  December 1-5, 2008 The Amapari gold mine is situated in the ...
Eight International Geostatistics Congress. Santiago, Chile,  December 1-5, 2008 The complexity of the lateritic profile  ...
Eight International Geostatistics Congress. Santiago, Chile,  December 1-5, 2008 The redistribution of the gold grades due...
Eight International Geostatistics Congress. Santiago, Chile,  December 1-5, 2008
Eight International Geostatistics Congress. Santiago, Chile,  December 1-5, 2008
Eight International Geostatistics Congress. Santiago, Chile,  December 1-5, 2008
Eight International Geostatistics Congress. Santiago, Chile,  December 1-5, 2008
Eight International Geostatistics Congress. Santiago, Chile,  December 1-5, 2008 CLUSTERING
Eight International Geostatistics Congress. Santiago, Chile,  December 1-5, 2008
Eight International Geostatistics Congress. Santiago, Chile,  December 1-5, 2008
Eight International Geostatistics Congress. Santiago, Chile,  December 1-5, 2008
Eight International Geostatistics Congress. Santiago, Chile,  December 1-5, 2008
Eight International Geostatistics Congress. Santiago, Chile,  December 1-5, 2008 Cluster1: 775 cases Cluster2: 3,504 cases
Eight International Geostatistics Congress. Santiago, Chile,  December 1-5, 2008 VARIOGRAM MODELLING
Eight International Geostatistics Congress. Santiago, Chile,  December 1-5, 2008 Cluster1
Eight International Geostatistics Congress. Santiago, Chile,  December 1-5, 2008 Cluster2
Eight International Geostatistics Congress. Santiago, Chile,  December 1-5, 2008 Cluster1 + Cluster2
Eight International Geostatistics Congress. Santiago, Chile,  December 1-5, 2008 VALIDATION
Eight International Geostatistics Congress. Santiago, Chile,  December 1-5, 2008
Eight International Geostatistics Congress. Santiago, Chile,  December 1-5, 2008 SET 1 VALIDATION BLOCK F HOLE CLUSTER 1 F...
Eight International Geostatistics Congress. Santiago, Chile,  December 1-5, 2008 SET 1 VALIDATION BLOCK F HOLE  FD HOLE “ ...
Eight International Geostatistics Congress. Santiago, Chile,  December 1-5, 2008 SET 1 VALIDATION BLOCK F HOLE CLUSTER 1 F...
Eight International Geostatistics Congress. Santiago, Chile,  December 1-5, 2008 SET 1 VALIDATION BLOCK F HOLE CLUSTER 1 F...
Eight International Geostatistics Congress. Santiago, Chile,  December 1-5, 2008 SET 1 VALIDATION
Eight International Geostatistics Congress. Santiago, Chile,  December 1-5, 2008 SET 1 VALIDATION
Eight International Geostatistics Congress. Santiago, Chile,  December 1-5, 2008 SET 1 VALIDATION
Eight International Geostatistics Congress. Santiago, Chile,  December 1-5, 2008 SET 2 VALIDATION
Eight International Geostatistics Congress. Santiago, Chile,  December 1-5, 2008 SET 2 VALIDATION BLOCK “ TRUE VALUES” F H...
Eight International Geostatistics Congress. Santiago, Chile,  December 1-5, 2008 SET 2 VALIDATION BLOCK “ TRUE VALUES F HO...
Eight International Geostatistics Congress. Santiago, Chile,  December 1-5, 2008 SET 2 VALIDATION BLOCK F HOLE CLUSTER 1 F...
Eight International Geostatistics Congress. Santiago, Chile,  December 1-5, 2008 SET 2 VALIDATION BLOCK F HOLE CLUSTER 1 F...
Eight International Geostatistics Congress. Santiago, Chile,  December 1-5, 2008 SET 2 VALIDATION
Eight International Geostatistics Congress. Santiago, Chile,  December 1-5, 2008 SET 2 VALIDATION
Eight International Geostatistics Congress. Santiago, Chile,  December 1-5, 2008 CONCLUSIONS
Eight International Geostatistics Congress. Santiago, Chile,  December 1-5, 2008
Eight International Geostatistics Congress. Santiago, Chile,  December 1-5, 2008
Eight International Geostatistics Congress. Santiago, Chile,  December 1-5, 2008 THANK YOU !
Upcoming SlideShare
Loading in...5
×

Slides Chile

1,046

Published on

eEight International Geostatisitcs Congress, Chile, 2008

Published in: Technology, Travel
0 Comments
0 Likes
Statistics
Notes
  • Be the first to comment

  • Be the first to like this

No Downloads
Views
Total Views
1,046
On Slideshare
0
From Embeds
0
Number of Embeds
0
Actions
Shares
0
Downloads
0
Comments
0
Likes
0
Embeds 0
No embeds

No notes for slide

Slides Chile

  1. 1. Application of categorical variables to improve estimation in the Amapari Lateritic Gold Mine, Brazil Francisco J. da Silva(UFRRJ) Luis P. Braga(UFRJ) Claudio G. Porto(UFRJ) Alfredo R. Nunes(MPBA) Eight International Geostatistics Congress. Santiago, Chile, December 1-5, 2008
  2. 2. DATA Eight International Geostatistics Congress. Santiago, Chile, December 1-5, 2008
  3. 3. Eight International Geostatistics Congress. Santiago, Chile, December 1-5, 2008
  4. 4. Eight International Geostatistics Congress. Santiago, Chile, December 1-5, 2008 The Amapari gold mine is situated in the Amapá Estate, North Brazil, where humid equatorial climatic conditions prevail. Under these conditions weathering is extremely aggressive resulting in thick regolith profiles of lateritic nature where the gold distribution differs substantially from that observed in the fresh ore.
  5. 5. Eight International Geostatistics Congress. Santiago, Chile, December 1-5, 2008 The complexity of the lateritic profile is due to the multiform characteristics of the alteration process which makes it difficult to properly define geological boundaries.
  6. 6. Eight International Geostatistics Congress. Santiago, Chile, December 1-5, 2008 The redistribution of the gold grades due to weathering factors creates a geometry for the mineralization which hardly conforms with mapeable units in a more traditional sense. In reality, the alteration process creates an intricate geological framework which strongly conditions the spatial modelling.
  7. 7. Eight International Geostatistics Congress. Santiago, Chile, December 1-5, 2008
  8. 8. Eight International Geostatistics Congress. Santiago, Chile, December 1-5, 2008
  9. 9. Eight International Geostatistics Congress. Santiago, Chile, December 1-5, 2008
  10. 10. Eight International Geostatistics Congress. Santiago, Chile, December 1-5, 2008
  11. 11. Eight International Geostatistics Congress. Santiago, Chile, December 1-5, 2008 CLUSTERING
  12. 12. Eight International Geostatistics Congress. Santiago, Chile, December 1-5, 2008
  13. 13. Eight International Geostatistics Congress. Santiago, Chile, December 1-5, 2008
  14. 14. Eight International Geostatistics Congress. Santiago, Chile, December 1-5, 2008
  15. 15. Eight International Geostatistics Congress. Santiago, Chile, December 1-5, 2008
  16. 16. Eight International Geostatistics Congress. Santiago, Chile, December 1-5, 2008 Cluster1: 775 cases Cluster2: 3,504 cases
  17. 17. Eight International Geostatistics Congress. Santiago, Chile, December 1-5, 2008 VARIOGRAM MODELLING
  18. 18. Eight International Geostatistics Congress. Santiago, Chile, December 1-5, 2008 Cluster1
  19. 19. Eight International Geostatistics Congress. Santiago, Chile, December 1-5, 2008 Cluster2
  20. 20. Eight International Geostatistics Congress. Santiago, Chile, December 1-5, 2008 Cluster1 + Cluster2
  21. 21. Eight International Geostatistics Congress. Santiago, Chile, December 1-5, 2008 VALIDATION
  22. 22. Eight International Geostatistics Congress. Santiago, Chile, December 1-5, 2008
  23. 23. Eight International Geostatistics Congress. Santiago, Chile, December 1-5, 2008 SET 1 VALIDATION BLOCK F HOLE CLUSTER 1 F HOLE CLUSTER 2 FD HOLE (“TRUE VALUE”)‏
  24. 24. Eight International Geostatistics Congress. Santiago, Chile, December 1-5, 2008 SET 1 VALIDATION BLOCK F HOLE FD HOLE “ TRUE VALUE” USUAL KRIGING NEIGHBOURHOOD (KP)‏ F HOLES
  25. 25. Eight International Geostatistics Congress. Santiago, Chile, December 1-5, 2008 SET 1 VALIDATION BLOCK F HOLE CLUSTER 1 F HOLE CLUSTER 2 FD HOLE “ TRUE VALUE” CLUSTER 2 BASED NEIGHBOURHOOD (KMCKP)‏
  26. 26. Eight International Geostatistics Congress. Santiago, Chile, December 1-5, 2008 SET 1 VALIDATION BLOCK F HOLE CLUSTER 1 F HOLE CLUSTER 2 FD HOLE “ TRUE VALUE” CLUSTER 2 BASED NEIGHBOURHOOD (KMCKP)‏
  27. 27. Eight International Geostatistics Congress. Santiago, Chile, December 1-5, 2008 SET 1 VALIDATION
  28. 28. Eight International Geostatistics Congress. Santiago, Chile, December 1-5, 2008 SET 1 VALIDATION
  29. 29. Eight International Geostatistics Congress. Santiago, Chile, December 1-5, 2008 SET 1 VALIDATION
  30. 30. Eight International Geostatistics Congress. Santiago, Chile, December 1-5, 2008 SET 2 VALIDATION
  31. 31. Eight International Geostatistics Congress. Santiago, Chile, December 1-5, 2008 SET 2 VALIDATION BLOCK “ TRUE VALUES” F HOLE CLUSTER 1 F HOLE CLUSTER 2 FD HOLE TRUE VALUES = KRIGING BLOCK VALUES F + FD HOLES
  32. 32. Eight International Geostatistics Congress. Santiago, Chile, December 1-5, 2008 SET 2 VALIDATION BLOCK “ TRUE VALUES F HOLE USUAL KRIGING NEIGHBOURHOOD (KP)‏ F HOLES
  33. 33. Eight International Geostatistics Congress. Santiago, Chile, December 1-5, 2008 SET 2 VALIDATION BLOCK F HOLE CLUSTER 1 F HOLE CLUSTER 2 CLUSTER 2 BASED NEIGHBOURHOOD (KMCKP)‏
  34. 34. Eight International Geostatistics Congress. Santiago, Chile, December 1-5, 2008 SET 2 VALIDATION BLOCK F HOLE CLUSTER 1 F HOLE CLUSTER 2 CLUSTER 2 BASED NEIGHBOURHOOD (KMCKP)‏
  35. 35. Eight International Geostatistics Congress. Santiago, Chile, December 1-5, 2008 SET 2 VALIDATION
  36. 36. Eight International Geostatistics Congress. Santiago, Chile, December 1-5, 2008 SET 2 VALIDATION
  37. 37. Eight International Geostatistics Congress. Santiago, Chile, December 1-5, 2008 CONCLUSIONS
  38. 38. Eight International Geostatistics Congress. Santiago, Chile, December 1-5, 2008
  39. 39. Eight International Geostatistics Congress. Santiago, Chile, December 1-5, 2008
  40. 40. Eight International Geostatistics Congress. Santiago, Chile, December 1-5, 2008 THANK YOU !

×