{"title":"Effect of Water Immersion on the Dynamic Strength Reduction and Energy Consumption Prediction Model of Magnetite Ore under Impact Loading","authors":"Haikuan Sun, Deqing Gan, Zhiyi Liu, Zhenlin Xue","doi":"10.1007/s11053-026-10736-6","DOIUrl":"https://doi.org/10.1007/s11053-026-10736-6","url":null,"abstract":"","PeriodicalId":54284,"journal":{"name":"Natural Resources Research","volume":"161 1","pages":""},"PeriodicalIF":5.4,"publicationDate":"2026-08-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148728781","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Lintao Hu, Wei Lu, Qingsong Zhang, Hongqing Zhu, Ruoyi Tao
{"title":"Evolution of Functional Groups in Coal–Oil System Under Low-Temperature Oxidation and Its Correlation with Gas Release Characteristics","authors":"Lintao Hu, Wei Lu, Qingsong Zhang, Hongqing Zhu, Ruoyi Tao","doi":"10.1007/s11053-026-10730-y","DOIUrl":"https://doi.org/10.1007/s11053-026-10730-y","url":null,"abstract":"","PeriodicalId":54284,"journal":{"name":"Natural Resources Research","volume":"59 1","pages":""},"PeriodicalIF":5.4,"publicationDate":"2026-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148690812","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Steven E. Zhang, Mohammad Parsa, Laura-Jane Eagleson, Christopher J. M. Lawley, Dianne Mitchinson, Renato Cumani
{"title":"Targeting Sensitivity and Selectivity in Data-Driven Mineral Prospectivity Mapping in Response to Mineral System-Based Geodata Annotation: Experimental Studies Using Pan-Canadian Copper Annotation and Philosophical Implications","authors":"Steven E. Zhang, Mohammad Parsa, Laura-Jane Eagleson, Christopher J. M. Lawley, Dianne Mitchinson, Renato Cumani","doi":"10.1007/s11053-026-10691-2","DOIUrl":"https://doi.org/10.1007/s11053-026-10691-2","url":null,"abstract":"The nature of targets extracted through data-driven mineral prospectivity mapping (DD-MPM) is dependent on geodata annotation. However, geodata annotation is noisy because mineral systems are complex systems and the definition of positivity changes with annotator, jurisdiction and time. Consequently, historically annotated data (HAD), which are the exhaustive collection of labeled samples (sites) that have accumulated over the history of exploration, is a noisy and subjective source of ground truth. However, the spatial sensitivity and selectivity of DD-MPM products to annotation is quantitatively unknown. Although HAD are always used at large scales of MPM, the cost-to-benefit analysis of improving and augmenting them is unclear because of inherent limitations of DD-MPM, including: (1) scientific confounds that ironically bias targeting toward the known as opposed to truly greenfield; (2) research design challenges that create circular logic during validation; and (3) geoscience and implementation uncertainty that make DD-MPM products heuristic. We conducted two experiments to: (1) verify the distribution of noisy positive samples in HAD and test whether a minority of samples carry a majority of information; and (2) assess the effectiveness of mineral system constraints by annotating maximally separable mineral systems of a commodity and relating their target overlap with class separability. Using a HAD database containing all copper samples in Canada, we observed that: (1) about 14% of the cleanest samples in HAD generated 71% of all spatial targets; and (2) fully separable mineral systems generated spatially overlapping targets, which is a hypothesis-generating finding. Together, these results (a) provide scientific evidence for annotation noise, its characteristics and impact; and (b) highlight the value of HAD and the need for more rigorous frameworks of mineral system-based DD-MPM.","PeriodicalId":54284,"journal":{"name":"Natural Resources Research","volume":"26 1","pages":""},"PeriodicalIF":5.4,"publicationDate":"2026-08-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148690813","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Young-Sun Son, Il-Hwan Oh, Sang-Gun No, Kwang-Eun Kim, Chul-Ho Heo, Jong-Kyu Park, Seong-Jun Cho
{"title":"SWIR Hyperspectral Reflectance Spectroscopy for Lithium Exploration in Pegmatites from Boam Deposit Area in Uljin, South Korea","authors":"Young-Sun Son, Il-Hwan Oh, Sang-Gun No, Kwang-Eun Kim, Chul-Ho Heo, Jong-Kyu Park, Seong-Jun Cho","doi":"10.1007/s11053-026-10753-5","DOIUrl":"https://doi.org/10.1007/s11053-026-10753-5","url":null,"abstract":"","PeriodicalId":54284,"journal":{"name":"Natural Resources Research","volume":"46 1","pages":""},"PeriodicalIF":5.4,"publicationDate":"2026-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148682470","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
F. G. F. Niquini, J. F. C. L. Costa, C. L. Schneider, M. A. S. Pereira
{"title":"Economic Definition of Ore: Grade Cut-Offs or Geometallurgical Response?","authors":"F. G. F. Niquini, J. F. C. L. Costa, C. L. Schneider, M. A. S. Pereira","doi":"10.1007/s11053-026-10740-w","DOIUrl":"https://doi.org/10.1007/s11053-026-10740-w","url":null,"abstract":"The definition of ore and waste blocks is typically made using run-of-mine cut-off grades, calculated with Lane’s formula. This approach implicitly considers metallurgical recovery and yield; however, it overlooks one important ore property: the quality of the product concentrate. This problem can be overcome by leveraging extensive geometallurgical knowledge and this paper presents an example of the gains that can be achieved by using this information. The study was conducted in a phosphate mine, where the current definition of ore/waste blocks is based on P <jats:sub>2</jats:sub> O <jats:sub>5</jats:sub> and CaO grades. The general solution proposed here is to incorporate geometallurgical information in the cut-off’s decision-making process by applying hierarchical indicator kriging to assign a concentrate category to each block and to apply a neural network to forecast each block yield. This information (yield and block category) is then used to define a block as ore, marginal ore, or waste. Using the proposed approach, the percentage of blocks classified as ore in the bebedourite domain was 61.6% of all bebedourite blocks, whereas using the current criterion, this number was only 23%, highlighting a significant amount of ore not taken into account when using the traditional method. For the carbonatite domain, the impact was in the opposite direction, as 27.6% of the carbonatite blocks were classified as ore using the current criterion, and when the geometallurgical cut-off was applied, the number of ore blocks became only 8.2% of all carbonatite blocks, showing that several waste blocks would have been misclassified as ore.","PeriodicalId":54284,"journal":{"name":"Natural Resources Research","volume":"71 1","pages":""},"PeriodicalIF":5.4,"publicationDate":"2026-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148587110","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Wei Zhao, Haichao Li, Kai Wang, Jiaxun Huang, Bo Li, Lihui Wang, Haozhen Zhou, Yidu Hong
{"title":"Desorption–Diffusion Characteristics of Gas in Coal Under Coupled Temperature–Pressure Conditions: Their Antagonistic Effects and Impacts on Gas Transport in Deep Coal Seams","authors":"Wei Zhao, Haichao Li, Kai Wang, Jiaxun Huang, Bo Li, Lihui Wang, Haozhen Zhou, Yidu Hong","doi":"10.1007/s11053-026-10751-7","DOIUrl":"https://doi.org/10.1007/s11053-026-10751-7","url":null,"abstract":"","PeriodicalId":54284,"journal":{"name":"Natural Resources Research","volume":"4 1","pages":""},"PeriodicalIF":5.4,"publicationDate":"2026-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148587111","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}