Showing papers in "Ore Geology Reviews in 2019"

TL;DR: In this paper, three machine learning methods, including support vector machine (SVM), artificial neural networks (ANN) and random forest (RF), were employed to conduct GIS-based mineral prospectivity mapping of the Tongling ore district, eastern China.

TL;DR: In this paper, the authors discuss the modes of occurrence of critical elements and their origins in the coal and associated rock samples (partings and roof strata) from the Datanhao coal mine, Daqingshan Coalfield, Inner Mongolia, northern China.

TL;DR: In this paper, exploration information systems (EIS) are used to better integrate the conceptual mineral deposit model (i.e., the critical and constituent processes of the targeted mineral system) with data available to support exploration targeting, and how best to categorise mineral systems in an EIS as scale-dependent subsystems to form mineral deposits.

TL;DR: Intermediate sulfidation (IS) veins are one of the subtypes of epithermal deposits formed in subduction-related arc settings or post-collisional orogenic belts as mentioned in this paper.

TL;DR: In this article, the authors present a geographical and geological compilation of European lithium hard-rock occurrences and deposits with their corresponding features (e.g., deposit types, Li-bearing minerals, Li concentrations), as well as a systematic assessment of metallogenic processes related to lithium mineralization.

TL;DR: In this paper, the authors reviewed the spectral properties in the thermal infrared (TIR; 7-14µm) region of the spectrum of the Earth's crust and focused on the Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER).

TL;DR: The Maoniuping REE deposit is spatially associated with a carbonatite-syenite complex and includes two sections: Guangtoushan and Dagudao as discussed by the authors.

TL;DR: Wang et al. as mentioned in this paper used in situ laser ablation-inductively coupled plasma mass spectroscopy to date 23 columbite-tantalite group mineral (CGM) samples from 14 Nb-Ta deposits.

TL;DR: The authors reviewed the public sources for information on zirconium and titanium production and resources using Australia as a case study, factors affecting resource availability, the complexity of titanium and ZIRconium feedstocks, their suitability for end-uses, their commercial properties, supply drivers.

TL;DR: In this article, the Baiyun gold deposit is located in the Liaodong peninsula in NE China and the gold orebodies are hosted in the Paleoproterozoic Liaohe Group metamorphic rocks.

TL;DR: Deep-sea mineral deposits potentially represent vast metal resources that could make a major contribution to future global raw material supply as mentioned in this paper, and increasing demand for these metals, many of which are mined in the deep-sea, is a major concern.

TL;DR: In this paper, the authors show that the substitution mechanism of scheelite is mainly controlled by 3Ca2+2REE3+1+3+4+4 +1+4Ca.

TL;DR: In this article, a roadmap is proposed for improving the effectiveness of spatial prospectivity modeling that has implications for the broader community interested in mineral exploration targeting, and the most effective method may be a hybrid of subjective human geological interpretation and objective, machine-based analysis, that captures the best aspects of these alternative approaches; i.e., an intelligence amplification (IA) rather than an artificial intelligence (AI) approach.

TL;DR: In this article, the authors performed laboratory experiments to simulate interactions of gold-bearing sulfur-rich hydrothermal fluids with arsenic-free pyrite at temperatures from 350 to 450 °C and pressures from 400 to 700 bar, typical of the formation conditions of many types of gold deposits.

TL;DR: In this article, the authors investigated the inorganic geochemistry of the No. 15 coal and associated rocks and revealed the enrichment origin of critical elements in these horizons, including Li, Mo, U, Se, Re, and rare earth elements.

TL;DR: In this paper, two major minable coal seams (D101 and W407) that are located in the lowermost and uppermost Wuchiapingian Longtan Formation in the Liupanshui Coalfield, Guizhou, southwestern China, were investigated in order to better understand the mechanism of rare earth elements enrichment in these coals.

TL;DR: In this paper, two stages of sphalerite have been distinguished: early-stage (S1) red-brown sphalersite and late-stage honey-yellow sphersite, and the results show that the S1 spheres have higher contents of Fe, Mn, Co, Cu, Ag, Sn, Ga, Sb and In.

TL;DR: In this article, a metric learning method based on the maximum margin frame was applied to identify multivariate geochemical anomalies related to Fe-polymetallic mineralization in the southwestern Fujian Province of China.

TL;DR: Wang et al. as discussed by the authors presented a 3D computational simulation based mineral prospectivity modeling approach that identified several exploration targets for concealed and deep-seated skarn-type mineralization within the Yueshan orefield.

TL;DR: In this article, petrographic and LA-ICP-MS analyses of pyrites and arsenopyrites from the main mineralization of each deposit provide new information on the potential gold and arsenic sources and timing of fluids responsible for mineralization at the district scale.

TL;DR: In this article, the application of U-Pb dating on U-rich, common Pb bearing grossular-rich garnet and the issues of common pb correction were discussed.

TL;DR: The Shanggong lode is one of the largest Mesozoic orogenic gold deposits in the East Qinling metallogenic belt of central China and three types of pyrite are recognized by its texture as mentioned in this paper.

TL;DR: In this paper, three samples of (Tl,Sb,As)-rich pyrite from the ore deposits of the southern Apuan Alps (Tuscany, Italy) were studied through a multi-technique approach in order to constrain the speciation and incorporation mechanism of thallium in Pyrite.

TL;DR: In this paper, the authors present data from the Cenozoic Ambohimirahavavy alkaline complex in Madagascar, with the aim of further constraining controls on the formation and HREE enrichment processes in ion adsorption deposits.

TL;DR: Li et al. as mentioned in this paper presented results from an integrated study on the texture, in situ trace element chemistry from laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS) and sulfur isotopic composition using secondary-ion mass spectrametry (SIMS), with a view to understand the geochemical variation, genesis of Mo mineralization and ore-forming process.

TL;DR: In this article, a new discovery of carbonatites at Pianciano, Ficoreto and Forcinelle in the Roman Region demonstrates that Italian carbonatite are not just isolated, mantle xenoliths-bearing, primitive diatremic rocks but also evolved subtype fluor-calciocarbonatite associated with fluor ore.

TL;DR: In this article, the authors report a facies analysis of the middle McArthur Group (Tooganinie to Lynott formations) in the southern McArthur Basin, distinguishing four facies associations and 19 lithofacies.

TL;DR: Li et al. as discussed by the authors presented new mineral chemical data on the garnet from the Hongshan Cu-Mo deposit, one of the largest skarn deposits in the Sanjiang Tethyan tectonic domain, in SW China.

TL;DR: In this paper, a review of scientific literatures published on mapping of the economic mineral resources of the Sultanate of Oman using ASTER and simples image processing methods is presented.

TL;DR: In this paper, the authors use a knowledge-based, data-rich, prospectivity mapping method applicable at regional to continental scales for hydrothermal and orthomagmatic ore-forming systems.