Classification of manganese nodule estimates: can we reach the “measured resource” level? .

Kuhn, Thomas, Rühlemann, Carsten and Knobloch, Andreas (2016) Classification of manganese nodule estimates: can we reach the “measured resource” level? . [Paper] In: 45. Underwater Mining Conference - Resource and Environmental Assessments for Seafloor Mining Development. , 09.-13.10.2016, Incheon, Korea .

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Abstract

A mineral resource estimation can be realized using a classical geostatistical approach based on variography and kriging. The results of such an estimation are the absolute tonnages of a certain area, the distribution of the resources within the area as well as the absolute and relative prediction errors and their spatial distribution (Akin & Siemens, 1988). For a mining project it is also necessary to classify the resource estimate as “inferred”, “indicated” or “measured” mineral resource (e.g., JORC 2012). In order to do this we used two different statistical key values (according to Benndorf, 2015): the accuracy of the resource calculation (i.e., the relative prediction error) as well as the continuity of the mineral resource and its measured content (i.e., the range of the variogram). In this contribution we will present some results of the classical geostatistical resource estimation and will discuss whether it is possible to reach the “measured resource” level with the common seafloor sampling tools.

Document Type: Conference or Workshop Item (Paper)
Keywords: Manganese nodules, mineral resource estimation, German license area
Projects: Enrichment
Date Deposited: 18 Jun 2018 11:50
Last Modified: 19 Jun 2018 06:54
URI: http://oceanrep.geomar.de/id/eprint/43434

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