Geochemical evidence for contribution of ore-forming materials from peraluminous granite basement —— Taking Fucheng pluton and No. 6722 uranium deposit in southern Jiangxi Province as examples ZHANG Bangtong ()1, CHEN Peirong ()1, 1 2 1.
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：2 ing experiment and lead isotope tracer, which provides convincing geochemical evidence for the contribution of ore-forming material from the deep basement rocks to the
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· The Northparkes district hosts economic Cu-Au mineralisation associated with discrete pencil porphyry systems emplaced in the Late Ordovician (∼439 Ma; Lickfold et al., 2003, 2007, Crawford, 2007a). Geochemical and geochronological data from the recently discovered Two-Thirty Prospect ~25 km northwest of Parkes, NSW indicates
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· Sulfur and chlorine are critical elements in ore-forming fluids due to their capacity to form ligands with ore metals (e.g., Cu, Au, Mo) and as well as with alkali elements, permitting their
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· The abundant occurrence of tourmaline in the Laodou gold deposit makes it an appropriate case study to use this mineral as a tracer of fluid evolution and ore-forming processes. The example chosen builds on previous studies of the major elemental and B isotope composition of tourmaline, which supported the magmatic-hydrothermal
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· Article on Pyrite as a Microtextural and Geochemical Tracer of Ore-Forming Processes, Central Zone Orogenic Gold Deposit, Gabgaba District, Sudan, published in Economic Geology 118 on 2023-03-13 by Célestine Berthier+7. Read the article Pyrite as a Microtextural and Geochemical Tracer of Ore-Forming Processes, Central
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:Publish Year:2021Xiaoye Jin, Xiaoye Jin, Chengfu Yang, Jianzhong Liu, Wu Yangcomparison with other country ro cks,the geochemical feature of ore-bearing sandstone is obviously similar to that of the Baimianshi gra nite,their SP value of trace element Q-type
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· Assessment of geological, geochemical and isotopic data indicates that a significant subgroup of volcanic-hosted massive sulphide (VHMS) deposits has a major or dominant magmatic–hydrothermal source of ore fluids and metals. This group, which is typically characterised by high Cu and Au grades, includes deposits such as those in the
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· Abstract. The Cadia district, located in the eastern Lachlan fold belt of New South Wales, Australia, comprises four gold-copper porphyry deposits Alan J. Wilson, David R. Cooke, Holly J. Stein, C. Mark Fanning, John R. Holliday, Ian J. Tedder; U-Pb and Re-Os Geochronologic Evidence for Two Alkalic Porphyry Ore-Forming Events in the Cadia
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· The Kangjiawan mineralization can be divided into three stages: (I) pre-ore quartz-pyrite, (II) main-ore quartz-pyrite-galena-sphalerite, and (III) late ore calcite-pyrite-galena-sphalerite. (2) The Kangjiawan sphalerite geochemistry suggests a decreasing ore-forming temperature trend and f S 2 (lg f S 2 = − 10.5 to − 12.4 (Sp2) and − 17.2 to −
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· From stage 1 to stage 4, the temperature of the ore-forming fluids decreased gradually, while the salinity showed increasing during stage 4, which indicates a possible contribution from
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· In strata from the Middle Triassic to the “Dachang” host bed, δ 30 Si of the host rocks ranges from 0.0% −0.3%, while that of primary ore-forming silicified fluids from −0.1% to −0.4%; in the Upper Permian and
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· The main mass of the melt sheet was an essentially homogeneous sample of a large volume of the continental crust, showing no evidence for contributions from mantle-derived magmas 9,16,19.
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:Magmatic Process of Ore FormationOrogenic Gold DepositOre Forming Minerals · This decoupled geochemical behavior of Cu and As has been interpreted as a result of chemical changes in ore-forming fluids, although direct evidence connecting fluctuations in hydrothermal fluid
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· More than 90% of the tungsten resources of China are in the Nanling region of South China, and the Yaogangxian vein deposit is the largest tungsten deposit in this region. The tungsten deposits have ages of 150–160 Ma, and are spatially, temporally and genetically related to granites which were previously believed to be produced by crustal
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· Porphyry copper±molybdenum±gold deposits (PCDs) are the most representative magmatic-hydrothermal metallogenic system above subduction zones with important economic value. Previous studies revealed that large PCDs are generally formed from initial arc magmas (from subduction-induced partial melting of the mantle wedge),
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Mantle contributions to granitoids associated with Sn mineralization: Geochemical and isotopic evidence from the giant Dachang deposit, South China[J]. Geoscience Frontiers , 2024, 15(1): 101718. DOI: 10.1016/j.gsf.2023.101718
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ing experiment and lead isotope tracer, which provides convincing geochemical evidence for the contribution of ore-forming material from the deep basement rocks to the metallization. 1 Geological characteristics of No. 6722 uranium deposit and Fucheng granite
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DOI: 10.1016/j.oregeorev.2021.104473 Corpus ID: 239200418 In situ geochemical analysis of multiple generations of sphalerite from the Weilasituo Sn-Li-Rb-Cu-Zn ore field (Inner Mongolia, northeastern China): Implication for critical metal enrichment and ore
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· The Camagüey district, Cuba, is known for its epithermal precious metal deposits in a Cretaceous volcanic arc setting. Recently, the La Unión prospect was discovered in the southern part of the district, containing gold and minor copper mineralization interpreted as porphyry type. Mineralization is hosted in a 73.0 ± 1.5 Ma
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· The rapid nature of the shift in ore-forming potential narrows the temporal-geochemical footprint of magmas associated with porphyry mineralisation and provides new constraints for exploration models.
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· 1. Introduction This editorial article introduces and discusses the implications of a collection of diverse, yet interlinked, research and review articles, published in a virtual special issue (VSI) of Ore Geology Reviews entitled “Spatial modelling and analysis of ore-forming processes in mineral exploration targeting”.
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· The δ¹³CV-PDB and δ¹⁸OV-SMOW values of the hydrothermal calcites range from −5.1‰ to −0.5‰ and 11.7‰ to 16.2‰ respectively, and the δ³⁴SV-CDT values of sulfide ore minerals
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· The Jinchuan Ni-Cu-PGE deposit is the single largest magmatic Ni-sulfide deposit in the world, with three different hypotheses on its ore-forming processes (e.g., in-situ sulfide
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· The source and evolution of ore-forming fluids is important to understand the genesis of Carlin-type gold deposit. Constraints on the source and evolution of ore fluid components by the conventional geochemical methods have long been a challenge due to the very fine-grained nature and complex textures of hydrothermal minerals in these
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· This contribution conceptualizes a blind source separation (BSS) model to recover sources of geochemical signals such that multi-depth ore-related enrichment patterns in complex metallogenic systems can be recognized. The proposed BSS framework consists of two consecutive modules. The first module is for the spectral decomposition
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· Célestine Berthier, Julien Perret, Aurélien Eglinger, Anne-Sylvie André-Mayer, Julien Feneyrol, Alexandre Voinot, Yoram Teitler, Rémi Bosc; Pyrite as a Microtextural and Geochemical Tracer of Ore-Forming Processes, Central Zone Orogenic Gold Deposit, Gabgaba District, Sudan.
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· In recent years mineral exploration has concentrated on concealed deposits in regolith-covered terrains. In China, the regolith-covered landscapes mainly include desert windblown sand basins, desert peneplains, semi-arid grassland, loess plateaus, forestry land, alluvial plains and laterite terrains. and laterite terrains.
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· Pyrite geochemistry is crucial for the discrimination of the types of ore-forming fluids in gold deposits, such as metamorphic–hydrothermal fluids and magmatic–hydrothermal fluids. With the assistance of supervised machine learning algorithms, this application can be leveraged maximally. Here, laser ablation inductively
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· It is characterized by an ilmenite–series I–type felsic granitoid intrusion, reduced ore-forming fluids with methane-rich fluid inclusions, and widely distributed primary pyrrhotite. Mo–Cu mineralization in the Hongyuan PMCD occurs as disseminated in porphyry, granular in miarolitic cavity, and vein-type in the quartz vein.
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