Mineralium Deposita最新文献_第7页

Correction to: Examining potential genetic links between Jurassic porphyry Cu–Au ± Mo and epithermal Au ± Ag mineralization in the Toodoggone district of North-Central British Columbia, Canada 更正：研究加拿大不列颠哥伦比亚省中北部Toodoggone地区侏罗纪斑岩Cu-Au±Mo与浅成热液Au±Ag矿化之间的潜在成因联系

IF 4.8 2区地球科学

Mineralium Deposita Pub Date : 2025-11-24 DOI: 10.1007/s00126-025-01409-0

Paul Duuring, Stephen M. Rowins, Bradley S. M. McKinley, Jenni M. Dickinson, Larry J. Diakow, Young-Seog Kim, Robert A. Creaser

引用次数: 0

Structural network at the basement/cover interface reveals fluid overpressure associated with uranium mineralization in the Eastern Athabasca Basin (Saskatchewan, Canada) 加拿大萨斯喀彻温东部阿萨巴斯卡盆地基底/盖层界面构造网络揭示与铀矿化相关的流体超压

IF 4.8 2区地球科学

Mineralium Deposita Pub Date : 2025-11-10 DOI: 10.1007/s00126-025-01402-7

Gaétan Milesi, Emmy Fischer, Thomas Obin, Mehdi Serdoun, Manon Bulliard, Quentin Boulogne, Olivier Gerbeaud, Vincent Rousset, Magdalena Anderson, Shawn Harvey, Gerard Zaluski, Julien Mercadier

引用次数: 0

Gold potential of the Roraima Supergroup in Guyana 圭亚那罗赖马超级群的黄金潜力

IF 4.8 2区地球科学

Mineralium Deposita Pub Date : 2025-11-08 DOI: 10.1007/s00126-025-01395-3

Hartwig E. Frimmel, Wyatt E.L. Minter, Anton P. le Roex, Jason Kirk

{"title":"Gold potential of the Roraima Supergroup in Guyana","authors":"Hartwig E. Frimmel, Wyatt E.L. Minter, Anton P. le Roex, Jason Kirk","doi":"10.1007/s00126-025-01395-3","DOIUrl":"https://doi.org/10.1007/s00126-025-01395-3","url":null,"abstract":"The predominantly siliciclastic, up to 2.8 km thick Palaeoproterozoic Roraima Supergroup in the Guiana Shield, cropping out in the border region of Guyana, Venezuela and Brazil, bears many sedimentological similarities to the 2.90–2.79 Ga Central Rand Group in the Witwatersrand Basin of South Africa, world-famous for hosting the largest known concentration of gold. Many decades of artisanal mining of gold (and diamonds) derived from the Roraima Supergroup underscore its economic potential. To assess this, an extensive exploration programme was conducted, involving 61 boreholes, some of which have reached the pre-Roraima basement. Detailed sedimentological, stratigraphic, petrological, geochemical and geochronological analyses of the drill cores led to a new informal lithostratigraphic scheme for this supergroup. Its lower part (1958 ± 19 to 1901 ± 1 Ma), for which a continental foreland basin is suggested as depositional setting, contains numerous sequence boundaries in the form of erosion surfaces, several of which with gold palaeoplacer potential (Au grades and contents of up to 3.8 g/t and 135 cm.g/t). The source of detrital gold (micro-)nuggets in alluvial fan and braided fluvial conglomerates within that succession can be traced back to eroded orogenic-type gold deposits in the 2.21–2.06 Ga Transamazonian granitoid-greenstone belt to the northeast. Overall, our results attest a significant potential for discovery of Witwatersrand-type gold deposits. Their expected Au endowment would be smaller, however, because of the younger age and inferred gold source - comparable with the Palaeoproterozoic Tarkwa deposits in Ghana.","PeriodicalId":18682,"journal":{"name":"Mineralium Deposita","volume":"216 1","pages":""},"PeriodicalIF":4.8,"publicationDate":"2025-11-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145461410","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}

引用次数: 0

Formation of giant high-grade hypogene porphyry copper deposits during phyllic to advanced argillic alteration: textural evidence from automated SEM mapping at the resolution and Hugo Dummett North deposits 叶状至晚期泥质蚀变时期巨型高品位深生斑岩铜矿床的形成：来自分辨率和Hugo Dummett North矿床的自动SEM成图的结构证据

IF 4.8 2区地球科学

Mineralium Deposita Pub Date : 2025-11-04 DOI: 10.1007/s00126-025-01398-0

Chao Yang, Jamie J. Wilkinson

引用次数: 0

Magmatic control on the formation of the Diaoquan Ag-(Cu-Au) skarn deposit in the eastern North China Craton as revealed by zircon, apatite and sulfides 锆石、磷灰石和硫化物揭示了岩浆对华北克拉通东部刁泉银（铜）矽卡岩矿床形成的控制作用

IF 4.8 2区地球科学

Mineralium Deposita Pub Date : 2025-10-31 DOI: 10.1007/s00126-025-01405-4

Gao-Hua Fan, Jian-Wei Li, Paul T. Robinson, Kai-Xuan Hui, Xiao-Dong Deng, Wen-Sheng Gao, Jin-Hao Liu, Hang-Jin Jiang

引用次数: 0

Element mobility during regional hydrothermal sodium and magnesium alteration: implications for ore formation in the Bergslagen ore district, Sweden 区域热液钠镁蚀变过程中的元素迁移：对瑞典Bergslagen矿区成矿的影响

IF 4.8 2区地球科学

Mineralium Deposita Pub Date : 2025-10-30 DOI: 10.1007/s00126-025-01390-8

Robert Dunst, Iain Pitcairn, Nils F. Jansson, Alexander Lewerentz, Andreas Karlsson, Xuan Liu

{"title":"Element mobility during regional hydrothermal sodium and magnesium alteration: implications for ore formation in the Bergslagen ore district, Sweden","authors":"Robert Dunst, Iain Pitcairn, Nils F. Jansson, Alexander Lewerentz, Andreas Karlsson, Xuan Liu","doi":"10.1007/s00126-025-01390-8","DOIUrl":"https://doi.org/10.1007/s00126-025-01390-8","url":null,"abstract":"Ore-distal hydrothermal alteration zones are commonly suggested as a source of metals to ore-forming fluids. The Bergslagen ore district, Sweden exhibits extensive ore-proximal and ore-distal alterations and has been used as a typical locality for establishing the hydrothermal leaching model for volcanogenic massive sulphide (VMS) deposits. The ore-distal alteration in the region has been reported as depleted in ore-forming metals but robust mass change evaluations are lacking. Defining least-altered reference compositions is a major hurdle in Bergslagen due to compositional variation in the stratigraphy, extensive alteration, and high-grade metamorphic overprint. This study presents mass balance calculations for Na- and Mg-altered rocks in the Hällefors area using a set of systematically defined least-altered samples. Results show systematic mobility of light rare earth elements (LREE, here La-Eu; e.g., 80% of the Ce is mobilised during alteration which equates to 60 µg/g Ce), but no mobility of base metals. Precursor rock compositions have conspicuously low base metal concentrations (median: Zn 10 µg/g, Pb 2.5 µg/g; n = 13) compared to other volcanic centres in Bergslagen. Major base metal deposits occur in areas where least-altered volcanic rocks have higher base metal concentrations (e.g., Garpenberg; median: Zn 31.50 µg/g; Pb 11.75 µg/g; n = 10). The REE contents in least-altered rocks are relatively elevated in areas that host REE mineralisation such as the Riddarhyttan area. The results indicate that regional differences in metal fertility of the volcanic host succession may be a primary control on the metal enrichments, including REEs, occurring in the ore deposits throughout Bergslagen.","PeriodicalId":18682,"journal":{"name":"Mineralium Deposita","volume":"65 1","pages":""},"PeriodicalIF":4.8,"publicationDate":"2025-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145397465","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}

引用次数: 0

Multistage mineralisation in the Raja orogenic Au-Co prospect, Peräpohja belt, Finland: constraints from S isotopes and trace elements in pyrite, pyrrhotite and chalcopyrite 芬兰Peräpohja带Raja造山带Au-Co远景区的多阶段矿化：来自硫铁矿、磁黄铁矿和黄铜矿S同位素和微量元素的约束

IF 4.8 2区地球科学

Mineralium Deposita Pub Date : 2025-10-30 DOI: 10.1007/s00126-025-01397-1

J. Tepsell, Y. Lahaye, F. Molnár, O. T. Rämö, N. Cook

{"title":"Multistage mineralisation in the Raja orogenic Au-Co prospect, Peräpohja belt, Finland: constraints from S isotopes and trace elements in pyrite, pyrrhotite and chalcopyrite","authors":"J. Tepsell, Y. Lahaye, F. Molnár, O. T. Rämö, N. Cook","doi":"10.1007/s00126-025-01397-1","DOIUrl":"https://doi.org/10.1007/s00126-025-01397-1","url":null,"abstract":"This study applies a multi-proxy geochemical approach to the Raja Au-Co prospect in northern Finland integrating trace element, S isotope, and textural data on sulphides and assessing these data against previously reported Ni, Cu and Fe isotope data. The combined dataset offers a more nuanced understanding of fluid evolution and mineralisation processes at Raja, classified as orogenic gold with atypical metal association. Our results support a multistage process, beginning with Co-only mineralisation driven by high-temperature, Co-rich metamorphic fluids, possibly from the evaporite-bearing Petäjäskoski formation, followed by a later hydrothermal overprint enriching Au. Early Co-rich fluids deposited euhedral pyrite (type A) with δ 34 S median of + 2.7‰, high Co/Ni ratio, and enrichment in Co, As, Se, Te, Bi, and Au. Subsequent metamorphism resulted in partial desulphidation of pyrite A, liberating Au, Co, and other trace elements and forming massive pyrrhotite, chalcopyrite, cobaltite, and Au-Bi-Te phases. Late-stage, Au-enriched fluids overprinted parts of the earlier Co-only mineralisation and deposited pyrite (type C) with δ 34 S median of + 5.6‰. Pyrite B, found in barren rocks, is unrelated to the mineralisation. Isotope and compositional variations in pyrite C suggest fluid mixing or pulsed activity involving magmatic-hydrothermal fluids and sedimentary-derived S. Our findings show that orogenic gold deposits with atypical metal association may form when Au-rich fluids overprint pre-existing base metal systems. This study illustrates how multivariate isotope geochemical methods can refine genetic models and unravel fluid evolution in epigenetic hydrothermal Au mineralisation in metamorphic belts, with implications for similar deposits in northern Finland and beyond.","PeriodicalId":18682,"journal":{"name":"Mineralium Deposita","volume":"21 1","pages":""},"PeriodicalIF":4.8,"publicationDate":"2025-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145397467","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}

引用次数: 0

Geology and genesis of the Paodaoling intermediate-sulfidation epithermal gold deposit in the Chizhou district, Eastern China 池州地区保道岭中硫化浅成低温热液金矿床地质与成因

IF 4.8 2区地球科学

Mineralium Deposita Pub Date : 2025-10-24 DOI: 10.1007/s00126-025-01400-9

Ke Huang, Guiqing Xie, Zhaoshan Chang, Liuan Duan, Shiqiang Huang, Bin Fu

引用次数: 0

Late Cretaceous magmatic controls on epithermal-porphyry and volcanogenic massive sulfide systems in the Eastern Pontides, Northeast Türkiye: geochemical and geochronological evidence 晚白垩世岩浆对东北<s:1>东庞德斯地区热液斑岩和火山块状硫化物系统的控制：地球化学和年代学证据

2区地球科学

Mineralium Deposita Pub Date : 2025-10-03 DOI: 10.1007/s00126-025-01389-1

Şafak Utku Sönmez, Robert Moritz, Serdar Keskin, Mustafa Erde BİLİR, François Turlin, Alexey Ulianov, Richard Spikings, Kalin Kouzmanov, Benita Putlitz, Torsten Vennemann, Ümit Aydın

{"title":"Late Cretaceous magmatic controls on epithermal-porphyry and volcanogenic massive sulfide systems in the Eastern Pontides, Northeast Türkiye: geochemical and geochronological evidence","authors":"Şafak Utku Sönmez, Robert Moritz, Serdar Keskin, Mustafa Erde BİLİR, François Turlin, Alexey Ulianov, Richard Spikings, Kalin Kouzmanov, Benita Putlitz, Torsten Vennemann, Ümit Aydın","doi":"10.1007/s00126-025-01389-1","DOIUrl":"https://doi.org/10.1007/s00126-025-01389-1","url":null,"abstract":"Abstract The Late Cretaceous magmatic arc of the Eastern Pontides consists of two magmatic cycles. Turonian to Santonian (93.9 to 83.6 Ma) submarine dacitic to rhyolitic rocks host major volcanogenic massive sulfide (VMS) deposits. By contrast, the degree of fertility of Campanian (83.6 to 72.1 Ma) intermediate to felsic rock sequences of the second cycle is still an open question. In particular, the nature, the absolute age, and the genetic relationship of Late Cretaceous epithermal systems with respect to the two magmatic cycles and the VMS deposits is still a matter of debate. The Yanıklı prospect, Artvin district allows us to demonstrate the fertility of the Campanian magmatism. Its intermediate-sulfidation epithermal nature is supported by its hydrothermal alteration pattern, mineral paragenesis, fluid microthermometry and stable isotope characteristics, and sphalerite chemistry. Uranium-lead zircon ages of 82.3 ± 0.4 and 81.6 ± 0.4 Ma and a 40 Ar/ 39 Ar adularia date of 78.6 ± 0.8 Ma indicate a Campanian age for both the immediate host rocks and ore formation at Yanıklı. Whole-rock geochemistry indicates that the immediate host rocks at Yanıklı belong to the second Late Cretaceous magmatic cycle of the Eastern Pontides. In this study we demonstrate a lithogeochemical, geodynamic, and metallogenic transition at ~ 83 Ma between the two Late Cretaceous magmatic cycles. The Turonian-Santonian tholeiitic to calc-alkaline magmatism in a back-arc basin setting resulted in the formation of VMS deposits, whereas the Campanian high-K calc-alkaline to shoshonitic magmatism in a continental arc environment resulted in the emplacement of epithermal-porphyry systems.","PeriodicalId":18682,"journal":{"name":"Mineralium Deposita","volume":"61 2","pages":"351-382"},"PeriodicalIF":0.0,"publicationDate":"2025-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s00126-025-01389-1.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147892692","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Diverse sources of sulfur in Archean ore deposits of the southwest Yilgarn Craton, Western Australia 西澳大利亚伊尔甘克拉通西南部太古宙矿床中硫的不同来源

IF 4.8 2区地球科学

Mineralium Deposita Pub Date : 2025-09-04 DOI: 10.1007/s00126-025-01386-4

Paul Duuring, Ignacio González-Álvarez

{"title":"Diverse sources of sulfur in Archean ore deposits of the southwest Yilgarn Craton, Western Australia","authors":"Paul Duuring, Ignacio González-Álvarez","doi":"10.1007/s00126-025-01386-4","DOIUrl":"https://doi.org/10.1007/s00126-025-01386-4","url":null,"abstract":"<p>Multiple sulfur isotopes (δ³⁴S, δ³³S, δ³⁶S) are powerful tracers of sulfur reservoirs and fluid evolution in mineral systems, especially in granulite-facies terranes where conventional geochemical indicators may be overprinted. The Yilgarn Craton is one of the most gold-rich Cratons in the world. This study applies in situ secondary ion mass spectrometry (SIMS) to analyze sulfur isotopes in sulfide minerals from a range of Archean mineral deposits in the southwest Yilgarn Craton, Western Australia—including seven metamorphosed gold deposits, and nearby intrusion-related and volcanic-hosted massive sulfide (VHMS) systems. The results reveal systematic differences in Δ³³S values across deposit types. Intrusion-related and some VHMS deposits display near-zero Δ³³S values, consistent with sulfur derived from a primitive mantle source and limited crustal input. In contrast, metamorphosed gold deposits exhibit a broader range of Δ³³S values, reflecting mixed contributions from mantle-derived fluids and Archean sedimentary sulfur, including both sulfide- and sulfate-dominated reservoirs. These findings highlight the utility of multiple sulfur isotopes for fingerprinting sulfur sources and fluid processes in high-grade metamorphic terranes. The data underscore the diversity of sulfur reservoirs accessed by different mineral systems and offer a geochemical framework for interpreting metallogenic processes in the southwest Yilgarn Craton.</p>","PeriodicalId":18682,"journal":{"name":"Mineralium Deposita","volume":"27 1","pages":""},"PeriodicalIF":4.8,"publicationDate":"2025-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144987324","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}

引用次数: 0