Mineralium Deposita最新文献

{"title":"Timing and evolution of hydrothermal processes associated with base-metal deposition in alpine-type Pb-Zn deposits (Raibl, NE Italy)","authors":"Matteo Velicogna, Lorenzo Tavazzani, Nicolò Barago, Davide Lenaz, Paolo Nimis, Cyril Chelle-Michou, Marco Venier, Marco Beltrame, Angelo De Min, Paolo Omenetto, Massimo Chiaradia, Emanuele Forte","doi":"10.1007/s00126-026-01484-x","DOIUrl":"https://doi.org/10.1007/s00126-026-01484-x","url":null,"abstract":"","PeriodicalId":18682,"journal":{"name":"Mineralium Deposita","volume":"43 1","pages":""},"PeriodicalIF":4.8,"publicationDate":"2026-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149221437","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}

{"title":"Isotopic fingerprinting of remobilized and superimposed mineralization in orogenic terrains: Rävliden North VMS deposit, Skellefte District, Sweden","authors":"Jonathan Rincon,Nils F. Jansson,Helen Thomas,Majka Christiane Kaiser,Mac Fjellerad Persson,Henrik Drake,Martin J. Whitehouse,Heejin Jeon,Ilia Rodushkin,Emma Engström,Leslie Logan,Christina Wanhainen","doi":"10.1007/s00126-026-01488-7","DOIUrl":"https://doi.org/10.1007/s00126-026-01488-7","url":null,"abstract":"Abstract Stable and radiogenic isotopes trace fluid and metal sources in volcanogenic massive sulfide (VMS) deposits and discriminate between superimposed mineral systems in ancient terrains. Despite their application in many VMS districts, isotopic studies remain limited for the Skellefte district. This study presents the first in-situ sulfur isotope (δ 34 S) data for pyrite, pyrrhotite, sphalerite, and chalcopyrite from the metamorphosed Rävliden North Zn-Pb-Cu-Ag VMS deposit. The δ 34 S (Vienna Canyon Diablo Troilite, V-CDT) values ranging from -2.67 to 3.68 ‰ indicate a primordial sulfur source for the c. 1.88 Ga mineralization, derived from hydrothermal fluids leaching volcano-sedimentary rocks. In contrast, sulfide minerals in the stratigraphic hanging wall record heavier δ 34 S values (up to 5.3 ‰ in sphalerite) reflecting syn-diagenetic incorporation of Paleoproterozoic seawater sulfur under anoxic conditions. Pyrite from overprinting Svecokarelian quartz veins and sulfide-cemented breccia demonstrates progressive 34 S isotope enrichment during syn-metamorphic growth, from near-zero hydrothermal δ 34 S in grain cores to ~ 5 ‰ in grain margins. Post-Svecokarelian Zn-Pb minerals hosted in calcite- and zeolite-bearing veins and breccias display stable isotope ratios (δ 13 C, δ 18 O, δ 114 Cd, δ 66 Zn, δ 56 Fe) consistent with a meteoric or connate fluid source and precipitation under reducing conditions at approximately 150°C. Lead isotopes show a typical Skellefte VMS signature for Rävliden North, whereas the post-Svecokarelian mineralization exhibits a more radiogenic composition, similar to ~ 0.5 Ga Pb–Zn veins of the Lycksele–Storuman area, constituting a superimposed mineral system, which formed due to far-field effects of the Timanian orogeny or the opening of the Iapetus Ocean. Our results demonstrate that distinguishing between remobilized and superimposed mineral systems in orogenic terrains requires integration of detailed paragenesis with isotope analyses.","PeriodicalId":18682,"journal":{"name":"Mineralium Deposita","volume":"27 1","pages":""},"PeriodicalIF":4.8,"publicationDate":"2026-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149209333","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}

{"title":"Fracturing and remobilization of Bi-rich melts during a late metallogenic stage of the Martinamor Sn–W system (Salamanca, Iberian Massif)","authors":"Daniel Bermejo,Lorena Ortega,Santos Barrios Sánchez,Kelvin dos Santos Alves,Pedro Castiñeiras,Elena Crespo,Juan Gómez-Barreiro","doi":"10.1007/s00126-026-01487-8","DOIUrl":"https://doi.org/10.1007/s00126-026-01487-8","url":null,"abstract":"Abstract Bismuth-rich melts are increasingly recognized as efficient collectors and transport agents for gold in hydrothermal systems, yet important questions remain regarding the processes controlling their generation, remobilization, and transport. The Martinamor Dome (Iberian Massif, Spain) hosts a long-lived granite-related Sn-W (± Bi-Au) mineral system that evolved between ca. 338–301 Ma and records multiple stages of structurally controlled hydrothermal mineralization, providing an ideal setting for investigating deformation-assisted metal remobilization. The youngest hydrothermal event (ca. 301–300 Ma) comprises an early cassiterite-bearing vein stage (V1) and a later Bi-Au-bearing, sulfide-dominated vein stage (V2), both formed during brittle deformation conditions under a strike-slip-dominated strain regime. Between these two stages, structural analysis indicates a shift from N-S to E-W maximum horizontal elongation, interpreted as the result of a σ2–σ3 stress permutation coupled with a decrease in differential stress. The sulfide stage records extensive remobilization of low-melting-point chalcophile elements (Bi, Ag, Te, Se, Pb, and Sb). Coupled dissolution-reprecipitation of early arsenopyrite generated sieve-textured arsenopyrite and contributed to the remobilization of low-melting point chalcophile elements (LMCE) into polymetallic Bi-rich melts, together with a likely contribution from the circulating hydrothermal fluid. Textural relationships and fluid inclusion data indicate the coexistence of Bi-rich melt droplets with a low-salinity H₂O-CO₂-CH₄ fluid at homogenization temperatures of 239–285 °C, under conditions compatible with their mechanical transport. Synchronous brittle deformation facilitated both melt transport and trapping, whereas the close association between electrum and Bi-rich droplets is consistent with Au scavenging by Bi-rich melts. These results demonstrate that brittle deformation, coupled dissolution-reprecipitation of arsenopyrite, and fluid-assisted metal remobilization were key controls on Bi redistribution during the late evolution of the Martinamor mineral system.","PeriodicalId":18682,"journal":{"name":"Mineralium Deposita","volume":"11 1","pages":""},"PeriodicalIF":4.8,"publicationDate":"2026-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149209334","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}

{"title":"Growth of magnetite from hydrothermal fluids via oriented attachment of nanoparticles: An example from the Hetaoping Fe-Zn-Pb skarn deposit, SW China","authors":"Xiao-Wen Huang,Yiping Yang,Rui-Zhong Hu,Mei-Fu Zhou,Adam C. Simon,Georges Beaudoin,Yu-Miao Meng,Liang Qi","doi":"10.1007/s00126-026-01489-6","DOIUrl":"https://doi.org/10.1007/s00126-026-01489-6","url":null,"abstract":"","PeriodicalId":18682,"journal":{"name":"Mineralium Deposita","volume":"50 1","pages":""},"PeriodicalIF":4.8,"publicationDate":"2026-10-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149209335","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}

{"title":"Contents and sources of precious metals of volcanic-hosted massive sulfide Zn-Cu-Pb deposits of northeast Japan","authors":"Manuel Nopeia,Asif Didari,Andrea Agangi,Ryohei Takahashi,Pearlyn Manalo,Marlina Elburg,Henriette Ueckermann,Linda Iaccheri","doi":"10.1007/s00126-026-01486-9","DOIUrl":"https://doi.org/10.1007/s00126-026-01486-9","url":null,"abstract":"Abstract We integrate major and trace element data with high-precision Pb isotope analyses of ores from the Middle Miocene felsic volcanic-hosted massive sulfide deposits of northeast Japan, including the Matsumine-Shakanai, Furutobe, and Nurukawa deposits, to elucidate the distribution and source of precious metals. Matsumine-Shakanai shows highly variable and generally elevated Au (0.3–123 ppm) and Ag (6–5010 ppm), whereas Furutobe and Nurukawa display lower and more uniform values. Gold and Ag are hosted mainly by sulfosalts at Matsumine-Shakanai but occur predominantly as electrum at Furutobe and Nurukawa. The uranogenic 207 Pb/ 204 Pb vs. 206 Pb/ 204 Pb plot defines distinct clusters with a steep linear trend, indicating two metal source components: a relatively unradiogenic, juvenile source corresponding to the Middle Miocene volcanic rocks and a more radiogenic source attributed to pre-Miocene basement rocks. At Matsumine-Shakanai, correlations between 207 Pb/ 204 Pb and Zn, Pb, Au, and Ag suggest a dominant contribution from evolved basement rocks for these metals. Such relationships are absent at Furutobe and Nurukawa, suggesting that Au and Ag enrichments at these deposits were controlled by other processes, such as transport and depositional processes. Lead isotope maps reveal a north-south trend parallel to the Miocene fault systems, reflecting hydrothermal fluid pathways. Incorporating recent findings of petrological studies on the thermal evolution of volcanic host rocks, we propose a geological model that involves progressive heating of the shallow crust in an extensional setting, which resulted in rising of the isotherms and extraction of metals from an isotopically evolved source providing much of Zn, Au, and Ag and an isotopically juvenile source providing Cu.","PeriodicalId":18682,"journal":{"name":"Mineralium Deposita","volume":"286 1","pages":""},"PeriodicalIF":4.8,"publicationDate":"2026-10-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149210430","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}

{"title":"Deformation-enhanced fluid evolution and skarn–IOCG transition in the Paleoproterozoic Elaine Dorothy Cu–Au system, Mount Isa Inlier, Australia","authors":"Catherine Nyakecho,Avish Kumar,Ioan V. Sanislav,Melanie Finch,Helen McCoy-West","doi":"10.1007/s00126-026-01485-w","DOIUrl":"https://doi.org/10.1007/s00126-026-01485-w","url":null,"abstract":"Abstract The Elaine Dorothy Cu-Au deposit, located in the Mary Kathleen Domain of the Mount Isa Inlier, Australia, records the interaction of Paleoproterozoic skarn metasomatism, fluid evolution, and deformation. The deposit is hosted by carbonate- and calc-silicate-rich rocks of the Corella Formation and comprises diopside–garnet–scapolite–wollastonite ± amphibole assemblages associated with pyrrhotite–chalcopyrite–pyrite mineralisation. Field relationships and mineral textures indicate that sulphide deposition began during or shortly after prograde skarn formation and subsequently evolved from disseminated and vein-controlled to semi-massive, massive, and shear-zone-hosted mineralisation. LA-ICP-MS analyses of pyrite, pyrrhotite, chalcopyrite, and magnetite record systematic variation in trace-element compositions during this evolution. Early Py1 is enriched in Co and Se and displays Co/Sb–Se/As characteristics consistent with a magmatic-hydrothermal contribution. Se-in-pyrite thermometry yields formation temperatures of up to 544 ± 36 °C for the earliest stage, decreasing to approximately 323–417 °C in later Py1 and 342 ± 11 °C for Py2. The transition from Co-rich Py1 to Co-poor, Ni-enriched Py2, together with pyrrhotite-dominated assemblages and cross-cutting chalcopyrite–pyrrhotite textures, records progressive changes in fluid chemistry and conditions of sulphide stability. Variable magnetite trace-element compositions and brecciation further indicate repeated modification during continued fluid circulation. Structural relationships demonstrate that deformation enhanced permeability along the Mary Kathleen structural architecture, promoting fluid focusing, sulphide redistribution, and local concentration within retrograde alteration zones. We interpret Elaine Dorothy as a deformation-enhanced Paleoproterozoic calcic skarn that evolved toward a skarn–IOCG transitional system, rather than as a classic IOCG end member. The deposit demonstrates how deformation, fluid–rock interaction, and evolving redox–sulphur-fugacity conditions progressively modify an early calcic skarn framework, enhancing permeability and fluid focusing, and generating IOCG-affinity characteristics through continued hydrothermal reworking rather than a discrete IOCG-forming event. This provides a process-based framework for recognising structurally reworked skarn systems in Proterozoic mineral provinces.","PeriodicalId":18682,"journal":{"name":"Mineralium Deposita","volume":"57 1","pages":""},"PeriodicalIF":4.8,"publicationDate":"2026-10-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149090124","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}

{"title":"Basement-to-cover geochemical vectors for the greenbushes Li–Sn–Ta pegmatite ore deposit, Western Australia","authors":"Liu Xuemin, Ignacio González-Álvarez, Rosa Didonna, Paul Duuring, Wang Xueqiu","doi":"10.1007/s00126-026-01483-y","DOIUrl":"https://doi.org/10.1007/s00126-026-01483-y","url":null,"abstract":"","PeriodicalId":18682,"journal":{"name":"Mineralium Deposita","volume":"5 1","pages":""},"PeriodicalIF":4.8,"publicationDate":"2026-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149067364","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}

{"title":"Hidden potential: unlocking byproduct tellurium supplies from active mines in the U.S. and Canada","authors":"Brian A. McNulty,Homayoun Fathollahzadeh,Simon M. Jowitt,Shaun L. L. Barker,John F. Thompson","doi":"10.1007/s00126-026-01482-z","DOIUrl":"https://doi.org/10.1007/s00126-026-01482-z","url":null,"abstract":"","PeriodicalId":18682,"journal":{"name":"Mineralium Deposita","volume":"78 1","pages":""},"PeriodicalIF":4.8,"publicationDate":"2026-09-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149021326","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}

{"title":"‌Reduced sulfur-complexed Cu transport driving the Shuixie hydrothermal vein-type Cu-Co mineralization, SW China","authors":"Wen Ma,Yucai Song,Teng Deng,Liangliang Zhuang,Chuandong Xue,Zhijun Feng","doi":"10.1007/s00126-026-01481-0","DOIUrl":"https://doi.org/10.1007/s00126-026-01481-0","url":null,"abstract":"","PeriodicalId":18682,"journal":{"name":"Mineralium Deposita","volume":"8 1","pages":""},"PeriodicalIF":4.8,"publicationDate":"2026-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149021327","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}

{"title":"Fluid and metal provenance of the Kiskamavaara Cu-Co deposit, northern Norrbotten, Sweden","authors":"Iris van der Werf,Joel B. H. Andersson,Amir M. Azim Zadeh,Martin Whitehouse,Nils Palo,Nils F. Jansson,Thomas Kearney,Tobias E. Bauer","doi":"10.1007/s00126-026-01480-1","DOIUrl":"https://doi.org/10.1007/s00126-026-01480-1","url":null,"abstract":"Abstract Kiskamavaara is a shear zone-hosted cobaltian pyrite and chalcopyrite deposit in Northern Norrbotten, Sweden. Although previously classified as an Iron Oxide Copper-Gold (IOCG) deposit, the dominance of pyrite is atypical, suggesting either an unusual IOCG variant or a deposit type with overlapping characteristics. Understanding deposits like Kiskamavaara, for which limited documentation exists, is critical for refining genetic models and regional exploration strategies. To determine metal and fluid provenance and grain deformation characteristics in Kiskamavaara, this study combines in-situ Electron Backscatter Diffraction for deformation textures, Laser Ablation Inductively Coupled Plasma Mass Spectrometry for trace element geochemistry and Secondary Ion Mass Spectrometry for δ 34 S. Results indicate early pyrite formed under variable physio-chemical conditions, producing concentrically zoned disseminated grains. A later pyrite phase, hosted in veins and breccias, exhibits crystal-plastic deformation with polygonal grains and 120° triple junctions. High Co and Ni concentrations in pyrite, with Co/Ni ratios between 10 and 1000, suggest a magmatic-hydrothermal metal source, possibly derived from nearby greenstones. Chalcopyrite is restricted to the late mineralisation stage and displays exclusively negative δ 34 S values, indicating precipitation from an evolved Cu-bearing hydrothermal fluid. The wide pyrite δ 34 S range of − 4.94‰ to + 11.16‰ implies sulfur isotope fractionation, likely driven by thermochemical sulfate reduction. Combined Se/S ratios of 3.62 × 10⁻⁶ to 5.35 × 10⁻ 4 , δ 34 S and negligible Au, indicates that an oxidised, saline fluid, plausibly formed through mixing between magmatic-hydrothermal fluids and basinal brines, was reduced by thermochemical sulfate reduction, triggering pyrite precipitation and development of a moderately reduced mineral assemblage.","PeriodicalId":18682,"journal":{"name":"Mineralium Deposita","volume":"98 1","pages":""},"PeriodicalIF":4.8,"publicationDate":"2026-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149021328","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}