Mineral Resource Estimation (M.E. Rossi and C.V. Deutsch)

2016 ◽  
Vol 111 (1) ◽  
pp. 272-274
Author(s):  
Mark J. Mihalasky
Keyword(s):  
Mineral Resource ◽  
Resource Estimation

scholarly journals Geostatistical Estimation of Multi-Domain Deposits with Transitional Boundaries: A Sensitivity Study for the Sechahun Iron Mine

Minerals ◽  
2019 ◽  
Vol 9 (2) ◽  
pp. 115 ◽  
Author(s):  
Sara Kasmaee ◽  
Giuseppe Raspa ◽  
Chantal de Fouquet ◽  
Francesco Tinti ◽  
Stefano Bonduà ◽  
...  
Keyword(s):  
Mineral Resource ◽  
Sensitivity Study ◽  
Accurate Estimate ◽  
Resource Estimation ◽  
Real Application ◽  
Grade Estimation ◽  
Boundary Identification ◽  
Geostatistical Estimation ◽  
Iron Mine ◽  
Geological Information

In mineral resource estimation, identification of the geological domains to be used for modeling, and the type of boundaries dividing them, is a major concern. Generally, the variables within a domain are estimated with an assumption of the hard boundaries (sharp contact). However, in many cases, the geologic structures that generate a deposit are transitional (overlapping of several geologic domains). Consequently, boundary identification of the geological domains is essential for an accurate estimate of resources. This paper considers a real application to examine whether the addition of geologic information benefits grade estimation in the presence of transitional boundaries. Results proved that the accuracy of the grade estimation can be improved by adding geological information and there is a significant sensitivity in grade estimation results in the existence of transitional boundaries.

scholarly journals Empirical Application of Generalized Rayleigh Distribution for Mineral Resource Estimation of Seabed Polymetallic Nodules

2021 ◽  
Author(s):  
Gordon Yu ◽  
John Michael Parianos
Keyword(s):  
Mineral Resource ◽  
Reasonable Agreement ◽  
Field Measurements ◽  
Rayleigh Distribution ◽  
Core Sample ◽  
Resource Estimation ◽  
Mining Equipment ◽  
Polymetallic Nodules ◽  
Generalized Rayleigh Distribution ◽  
Offshore Mining

An effective empirical statistical method is developed to improve the process of mineral resource estimation of seabed polymetallic nodules and is applied to analyse the abundance of seabed polymetallic nodules in the Clarion Clipperton Zone (CCZ). The newly proposed method is based on three hypotheses as the foundation for a model of “Idealized Nodules”, which was validated by analysing nodule samples collected from the seabed within the Tonga Offshore Mining Limited (TOML) exploration contract. Once validated, the “Idealized Nodule” model was used to deduce a set of empirical formulae for predicting the nodule resources, in terms of Percentage Coverage and Abundance. The formulae were then applied to analysing a total of 188 sets of nodule samples collected across the TOML areas, comprising box-core samples and towed camera images collected by one of the authors and detailed in [4]. The analysis also relies upon detailed box-core sample measurements from other areas reported by [7]. Numerical results for resource prediction were compared with field measurements, and reasonable agreement has been achieved. The new method has the potential to achieve more accurate mineral resource estimation with reduced sample numbers and sizes. They may also have application in improving the efficiency of design and configuration of mining equipment.

scholarly journals Understanding Geology and Structure: An Essential Part of Mineral Resource Estimation

2018 ◽  
Vol 2018 (1) ◽  
pp. 1-8 ◽  
Author(s):  
Bert De Waele ◽  
Mathieu Lacorde ◽  
Michael Cunningham ◽  
Benjamin Jupp
Keyword(s):  
Mineral Resource ◽  
Resource Estimation

scholarly journals Hydrothermal and Metasomatic Kaolin Resource Estimation in the Quang Ninh area, Northeastern Vietnam

2021 ◽  
Vol 54 (2E) ◽  
pp. 176-185
Author(s):  
Khuong The Hung
Keyword(s):  
Mineral Resource ◽  
Statistical Methods ◽  
High Alumina ◽  
Chemical Analyses ◽  
Resource Estimation ◽  
X Ray Diffraction ◽  
X Ray ◽  
Ore Minerals ◽  
The One ◽  
Quang Ninh

In northeastern Vietnam, hydrothermal‐metasomatic kaolinite-pyrophyllite from the secondary quartzite origin has been found in many places, including Pin Ho, Ban Ngai, Khe Khoai, Pec Sec Leng, Tan Mai ore occurrences, etc. They are exploited together with pyrophyllite, alunite, and high‐alumina quartzite as a byproduct. There were 810 chemical and mineral samples in the Quang Ninh area collected to investigate hydrothermal‐metasomatic kaolin resources. The ore minerals consist of kaolin-group minerals (kaolinite, dickite), pyrophyllite, quartz with minor sericite, alunite, diaspora, etc. They were identified by X-ray diffraction, and microscope and scanning electron microscope coupled with energy-dispersive X-ray spectroscopy analyses. Chemical analyses of major oxides were carried out on clays and parent rock samples by X-ray fluorescence spectrometry. The similarity-analogy in ore geology and mineral resource estimation based on statistical methods are employed to estimate hydrothermal‐metasomatic kaolin resources from the Quang Ninh area in northeastern Vietnam. The mineral resource estimation based on statistical methods shows 2.21 million tons of kaolin obtained by the content of aluminum oxide over 28% of the Pec Sec Leng mine, accounting for 14.3% in total. The similarity-analogy in ore geology indicates 158.16 million tons of kaolinite-pyrophyllite ores, of which, 22.0 million tons are kaolin. These methods display that the Quang Ninh area contains mainly pyrophyllite rather than kaolin resources. Our study suggests that the Quang Ninh area can be considered as a potential pyrophyllite resource in northeastern Vietnam for future exploration. Furthermore, the one resource estimation based on similarity-analogy in ore geology method shows an overview of the prospect on kaolinite-pyrophyllite resources in the Quang Ninh area, northeastern Vietnam.

Mineral Resource Estimation

2014 ◽  
Author(s):  
Mario E. Rossi ◽  
Clayton V. Deutsch
Keyword(s):  
Mineral Resource ◽  
Resource Estimation
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