{"title":"预测伊朗中部亚兹德Mehdiabad矿床品位-吨位曲线及其不确定性","authors":"S. Hosseini, O. Asghari, X. Emery, M. Maleki","doi":"10.4430/BGTA0206","DOIUrl":null,"url":null,"abstract":"The Mehdiabad complex deposit is located 116 km SE of Yazd, in the structural zone of central Iran. At this deposit, important decisions are often based on the grades of multiple elements (zinc, lead, and silver). In this context, it is therefore essential to devise a method that addresses the change of support from the data support to the target smu block, the multivariate nature of the ore control selection criteria and the uncertainty in the actual (unknown) block grades. The solution presented in this study is to employ block-support sequential co-simulation to construct multiple realizations or outcomes of the grade distribution within the deposit that reproduce the natural variability at all spatial scales. The set of realizations allow assessing both grade and tonnage uncertainties and can be used to evaluate the uncertainty on key aspects of the project and transferring uncertainty of the resource/reserve estimates into risk in downstream studies.","PeriodicalId":50728,"journal":{"name":"Bollettino Di Geofisica Teorica Ed Applicata","volume":null,"pages":null},"PeriodicalIF":0.7000,"publicationDate":"2017-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"4","resultStr":"{\"title\":\"Forecasting the grade-tonnage curves and their uncertainty at the Mehdiabad deposit-Yazd, central Iran\",\"authors\":\"S. Hosseini, O. Asghari, X. Emery, M. Maleki\",\"doi\":\"10.4430/BGTA0206\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"The Mehdiabad complex deposit is located 116 km SE of Yazd, in the structural zone of central Iran. At this deposit, important decisions are often based on the grades of multiple elements (zinc, lead, and silver). In this context, it is therefore essential to devise a method that addresses the change of support from the data support to the target smu block, the multivariate nature of the ore control selection criteria and the uncertainty in the actual (unknown) block grades. The solution presented in this study is to employ block-support sequential co-simulation to construct multiple realizations or outcomes of the grade distribution within the deposit that reproduce the natural variability at all spatial scales. The set of realizations allow assessing both grade and tonnage uncertainties and can be used to evaluate the uncertainty on key aspects of the project and transferring uncertainty of the resource/reserve estimates into risk in downstream studies.\",\"PeriodicalId\":50728,\"journal\":{\"name\":\"Bollettino Di Geofisica Teorica Ed Applicata\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":0.7000,\"publicationDate\":\"2017-01-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"4\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Bollettino Di Geofisica Teorica Ed Applicata\",\"FirstCategoryId\":\"89\",\"ListUrlMain\":\"https://doi.org/10.4430/BGTA0206\",\"RegionNum\":4,\"RegionCategory\":\"地球科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q4\",\"JCRName\":\"GEOCHEMISTRY & GEOPHYSICS\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Bollettino Di Geofisica Teorica Ed Applicata","FirstCategoryId":"89","ListUrlMain":"https://doi.org/10.4430/BGTA0206","RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"GEOCHEMISTRY & GEOPHYSICS","Score":null,"Total":0}
Forecasting the grade-tonnage curves and their uncertainty at the Mehdiabad deposit-Yazd, central Iran
The Mehdiabad complex deposit is located 116 km SE of Yazd, in the structural zone of central Iran. At this deposit, important decisions are often based on the grades of multiple elements (zinc, lead, and silver). In this context, it is therefore essential to devise a method that addresses the change of support from the data support to the target smu block, the multivariate nature of the ore control selection criteria and the uncertainty in the actual (unknown) block grades. The solution presented in this study is to employ block-support sequential co-simulation to construct multiple realizations or outcomes of the grade distribution within the deposit that reproduce the natural variability at all spatial scales. The set of realizations allow assessing both grade and tonnage uncertainties and can be used to evaluate the uncertainty on key aspects of the project and transferring uncertainty of the resource/reserve estimates into risk in downstream studies.
期刊介绍:
The "Bollettino di Geofisica Teorica ed Applicata" is an international open access journal dedicated to the publication of original papers dealing with Deep Earth Geophysics, Near Surface Geophysics, Exploration Geophysics, Borehole Geophysics, Geodynamics and Seismotectonics, Seismology, Engineering Seismology, Geophysical Modelling, Geodesy, Remote Sensing, Seismic and Geodetic Networks, Oceanography, and their application in the fields of Energy, Natural Resources, Environment and Climate, Policies and Regulations, Risk and Security, Technological Development.