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Article

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

Nautilus Minerals Pacific Pty Ltd., East Brisbane, Brisbane 4169, Australia
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Academic Editors: Pedro Madureira and Tomasz Abramowski
Minerals 2021, 11(5), 449; https://doi.org/10.3390/min11050449
Received: 16 March 2021 / Revised: 13 April 2021 / Accepted: 21 April 2021 / Published: 23 April 2021
(This article belongs to the Special Issue Exploration of Polymetallic Nodules)
An efficient empirical statistical method is developed to improve the process of mineral resource estimation of seabed polymetallic nodules and is applied to analyze 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 analyzing 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 analyzing a total of 188 sets of nodule samples collected across the TOML areas, comprising box-core samples and towed camera images as well as other detailed box-core sample measurements from the literature. Numerical results for nodule abundance and coverage predictions were compared with field measurements, and unbiased agreement has been reached. 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. View Full-Text
Keywords: polymetallic nodules; mineral resource estimation; statistical analysis; Generalized Rayleigh Distribution; Clarion Clipperton Zone polymetallic nodules; mineral resource estimation; statistical analysis; Generalized Rayleigh Distribution; Clarion Clipperton Zone
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MDPI and ACS Style

Yu, G.; Parianos, J. Empirical Application of Generalized Rayleigh Distribution for Mineral Resource Estimation of Seabed Polymetallic Nodules. Minerals 2021, 11, 449. https://doi.org/10.3390/min11050449

AMA Style

Yu G, Parianos J. Empirical Application of Generalized Rayleigh Distribution for Mineral Resource Estimation of Seabed Polymetallic Nodules. Minerals. 2021; 11(5):449. https://doi.org/10.3390/min11050449

Chicago/Turabian Style

Yu, Gordon, and John Parianos. 2021. "Empirical Application of Generalized Rayleigh Distribution for Mineral Resource Estimation of Seabed Polymetallic Nodules" Minerals 11, no. 5: 449. https://doi.org/10.3390/min11050449

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