Dear list, Some people used the range of variogram to optimize the drillhole spacing and radius of resource classification of a deposit. But as we knew that the nugget ratio (nugget variance/total sill) of variogram could vary to be low (<25%), medium (25-50%), high (50-75%), and extremely high (>75%).
So how can we define the correct range related to the such types of nugget ratio? In my opinion when the nugget ratio is low, then our variogram range is robust, but how for the others? When the nugget ratio is extremely high, then the range is almost none. Is there a mathematical relationship between nugget effect or nugget ratio with the range of variogram? Looking forward to the suggestions and references from the list. Thank you for attention. Best regards, --------------- M. Nur Heriawan Earth Resources Exploration Research Group Faculty of Mining and Petroleum Engineering Institut Teknologi Bandung (ITB) Jl. Ganesha 10 Bandung 40132 INDONESIA http://www.mining.itb.ac.id/heriawan + + To post a message to the list, send it to ai-geost...@jrc.ec.europa.eu + To unsubscribe, send email to majordomo@ jrc.ec.europa.eu with no subject and "unsubscribe ai-geostats" in the message body. DO NOT SEND Subscribe/Unsubscribe requests to the list + As a general service to list users, please remember to post a summary of any useful responses to your questions. + Support to the forum can be found at http://www.ai-geostats.org/
