Poducts

  • Geochemical contrasts between Late Triassic ore-bearing

    Geochemical contrasts between Late Triassic ore-bearing and barren intrusions in the Weibao Cu–Pb–Zn deposit, East Kunlun Mountains, NW China: constraints from accessory minerals (zircon and apatite) The Weibao copper–lead–zinc skarn deposit is located in the northern East Kunlun terrane, NW China. Igneous intrusions in this deposit consist of barren diorite porphyry (U–Pb zircon age

  • Stratabound skarn Pb-Zn mineralization in the Yunkai

    01/10/2020· The Fozichong Pb-Zn ore district is located in the Yunkai Domain, southern segment of the QHMB (Fig. 1B-C).The district contains three ore fields (): the Guyi (including the Shimen, Daozhikou, Liutang, and Fenghuangchong deposits), Hesan (including the Niuwei, Wulonggang, Lezhai and Shuidi deposits) and Longwan ore fields (the Longwan ore deposit), with the Guyi accounting for over 80% Pb-Zn

  • Author: Peng-Peng Yu, Yi Zheng, Xi Huang, Cheng-Ming Wang
  • Geology and genesis of the George Fisher Zn-Pb-Ag

    The George Fisher deposit (107 Mt @ 11.1% Zn, 5.4% Pb, and 93g/t Ag) is the northernmost significant Mount Isa-style deposit hosted by the -1653Ma Urquhart Shale in the Western Mount Isa Inlier. It is distinguished from the Mount Isa and Hilton Mines by a paucity of syn-late tectonic Cu. This has enabled recognition and examination of a previously ·unrecognized, syndiagenetic, hydrothermal Zn

  • Geology, mineralogy and ore fluid characteristics of the

    The veins were covered by 16 diamond drill holes, and the drill cores were analyzed for Au, Ag, Mo, Cu, Hg, As, Pb, Zn and Sb (Mohammadi et al, 2005). The V3 vein, about 700 m long, and on the average 5 m wide, is the largest vein in the district. Two types of quartz occur in the veins: an early medium to coarse grained grey quartz joined by milky quartz in later stages. Ore minerals include

  • The Dairi SEDEX Zn + Pb + Ag deposit (North Sumatra

    01/07/2020· The Dairi Zn + Pb + Ag deposit (North Sumatra, Indonesia) has published an estimate of 17.9 Mt ore at a concentration significantly above global average of 12.6 wt% Zn and 7.3 wt% Pb (Taylor et al., 2009), with the most recent in-house estimate indicating 25.1 Mt ore at 10.2 wt% Zn, 6.0 wt% Pb, and 8.4 g/t Ag. Contained metal, at this ore grade, is thus 2.6 Mt Zn, 1.5 Mt Pb, and 210 t Ag.

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  • molybdenum ore separation production line

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  • Minerals | Free Full-Text | The Shah-Ali-Beiglou Zn-Pb-Cu

    Ore-stage is represented by quartz, sphalerite (from 0.1 mol % to 4 mol % FeS), galena, chalcopyrite, tetrahedrite-tennantite, minor seligmannite and enargite, as vein-veinlet, cement and clast breccias. Post-ore stage is defined by deposition of quartz and carbonate along with minor barite, and supergene stage is characterized by bornite, chalcocite, covellite, hematite, goethite, and

  • Ore Geology Reviews | Vol 95, Pages 1-1200 (April 2018

    Reply to a comment on “In situ zircon U-Pb dating and O isotopes of the Neoarchean Hongtoushan VMS Cu-Zn deposit in the North China Craton: Implication for the ore genesis” by Ming-Tian Zhu et al. [Ore Geol. Rev. 67 (2015) 354–367]

  • Geochemical vectors for stratiform Zn-Pb-Ag sulfide and

    The favorable stratigraphic interval contains anomalously high Zn, Pb, Ag, Cu, K 2 O/(K 2 O+Na 2 O), Mn, Co, Tl, Ba and B relative to adjacent metatuffite. However, only Zn, Pb, Ag, K 2 O/(K 2 O+Na 2 O) and Mn are significantly enriched relative to adjacent strata beyond the known lateral extent of the ore. Elevated copper, Co and Tl only occur in the vent-proximal part of the deposit, whereas

  • Minerals | Free Full-Text | The Shah-Ali-Beiglou Zn-Pb

    Ore-stage is represented by quartz, sphalerite (from 0.1 mol % to 4 mol % FeS), galena, chalcopyrite, tetrahedrite-tennantite, minor seligmannite and enargite, as vein-veinlet, cement and clast breccias. Post-ore stage is defined by deposition of quartz and carbonate along with minor barite, and supergene stage is characterized by bornite, chalcocite, covellite, hematite, goethite, and

  • CORE

    Low-temperature, hydrothermal alteration (epidote, chlorite, K-feldspar, sericite), closely related to the stockwork mineralization, is characterized by enrichment in K2O, Pb, Zn, Cu, and MnO, and depletion in Na2O. The overlying andesites are affected by acid leaching. Fluid inclusions and stable isotopes (O,H) were studied in samples of granodiorite related to the skarn and to the stockwork

  • U-Pb SHRIMP and 40Ar/39Ar geochronologic data and

    The study provides age data to test ore-deposit models for relations between stockwork Cu-Mo and Ag-Zn-Cu lodes at Butte, Montana, by undertaking a comprehensive district-wide, SHRIMP U-Pb study of dike emplacement ages combined with 40Ar/39Ar study of host rock cooling and reheating as well as 40Ar/39Ar study of muscovite in alteration adjacent to lodes.

  • Geochemical contrasts between Late Triassic ore-bearing

    28/12/2017· The Weibao copper–lead–zinc skarn deposit is located in the northern East Kunlun terrane, NW China. Igneous intrusions in this deposit consist of barren diorite porphyry (U–Pb zircon age of 232.0 ± 2.0 Ma) and ore-bearing quartz diorite and pyroxene diorite (U–Pb zircon ages of 223.3 ± 1.5 and 224.6 ± 2.9 Ma, respectively). Whole-rock major and trace element and accessory

  • Minerals | Free Full-Text | Geological, Geochemical, and

    The Nuocang Pb-Zn deposit is a newly discovered polymetallic skarn deposit in the southern Lhasa subterrane, western Gangdese, Tibet. The skarn occurs at the contact between the limestone of Angjie Formation and the Linzizong volcanic rocks of Dianzhong Formation (LDF), and the subvolcanic granite porphyry intruding those formations; the contact metasomatic skarn is well zoned mineralogically

  • Tourmaline in the central Swedish ore district |

    Among the tourmaline-bearing ore deposits are the Dammberg ZnPb-Fe sulphide deposit, the Sala Pb-Zn-Ag deposit, the Dalkarlsberg, Pershyttan and Håksberg Fe oxide deposits, the Leja Cu deposit, and the Zinkgruvan Zn-Pb-Ag deposit. Tourmaline has been recorded a) as tourmalinites and tourmaline-bearing chemical sediments; b) in tourmaline-bearing skarns; c) in tourmaline-quartz veins; d) as

  • Cu, Fe and S concentrations in magmatic/hydrothermal

    Cu, Fe and S concentrations in magmatic/hydrothermal fluids: Evidence from natural and synthetic fluid inclusions

  • Fluid Evolution in a Subvolcanic Granodiorite Pluton

    Fluid Evolution in a Subvolcanic Granodiorite Pluton Related to Fe and Pb-Zn Mineralization, Banská Štiavnica Ore District, Slovakia Peter Koděra; Peter Koděra Geological Survey of the Slovak Republic, Mlynská dolina 1, 817 04 Bratislava, Slovakia † Corresponding author: email, [email protected] Search for other works by this author on: GSW. Google Scholar. Jaroslav Lexa; Jaroslav Lexa

  • Geochemical vectors for stratiform Zn-Pb-Ag sulfide and

    The favorable stratigraphic interval contains anomalously high Zn, Pb, Ag, Cu, K 2 O/(K 2 O+Na 2 O), Mn, Co, Tl, Ba and B relative to adjacent metatuffite. However, only Zn, Pb, Ag, K 2 O/(K 2 O+Na 2 O) and Mn are significantly enriched relative to adjacent strata beyond the known lateral extent of the ore. Elevated copper, Co and Tl only occur in the vent-proximal part of the deposit, whereas

  • INTERNATIONAL JOURNAL OF SCIENTIFIC & TECHNOLOGY

    content however occurs with Cu, Zn and Pb (Table 1; Fig. 3). Average Cu content is maximum (8.3) for the microgranite and a minimum (5.3ppm) for the granodiorite. Rock samples of porphyritic-biotite-granite have intermediate average content (7.4ppm) of Cu. Average content of Zn is highest (7.3ppm) for

  • Minerals | Free Full-Text | The Shah-Ali-Beiglou Zn-Pb-Cu

    Ore-stage is represented by quartz, sphalerite (from 0.1 mol % to 4 mol % FeS), galena, chalcopyrite, tetrahedrite-tennantite, minor seligmannite and enargite, as vein-veinlet, cement and clast breccias. Post-ore stage is defined by deposition of quartz and carbonate along with minor barite, and supergene stage is characterized by bornite, chalcocite, covellite, hematite, goethite, and

  • Processes of Formation and Distribution of Pb-, Zn-, Cd

    Historic mining has produced widespread Pb, Zn, Cd, and Cu contamination in the fluvial deposits of the Tyne River Basin, northeast England. Detailed mineralogical analysis of contemporary overbank river sediment, mining-age alluvium, and mine-waste tips and of suspended solids in river waters has defined a general weathering reaction paragenesis of Pb-, Zn-, Cd-, and Cu-bearing minerals

  • (PDF) Mineralogy and Genesis of the Kihabe Zn-Pb-V

    The Kihabe Zn-Pb-V > (Cu-Ag-Ge) prospect is located at the boundary between Namibia and Botswana (Aha Hills, Ngamiland District) in a strongly deformed Proterozoic fold belt, corresponding to the

  • Geochemical fractionation in the regolith of western New

    end products of quartz, kaolinite and hematite/goethite (i.e. variable loss of mainly K+, (goethite accumulates Cu, Zn ± Pb, As; hematite Pb, As, Sb, Ba, Bi ± Cu). Manganese oxides/oxyhydroxides, particularly lithiophorite developed in redox boundary accumulations, concentrate Co-Zn±Ni-Cu-Au. Regolith carbonate and sulfate accumulations in the upper regolith have associated Au-Ba-Sr

  • Paleozoic magmatism and porphyry Cu-mineralization in

    Mineralization consists mainly of quartz-sulfide stockworks and disseminated sulfides, with ore minerals chalcopyrite, pyrite, molybdenite, and minor galena and sphalerite. Gangue minerals include quartz, orthoclase, biotite, sericite, and K-feldspar. Zircon LA-ICPMS U–Pb dating of the ore-bearing porphyritic granodiorite yielded a mean 206Pb/238U age of 444.6 ± 7.8 Ma, with a group of

  • Geochemical vectors for stratiform Zn-Pb-Ag sulfide and

    The favorable stratigraphic interval contains anomalously high Zn, Pb, Ag, Cu, K 2 O/(K 2 O+Na 2 O), Mn, Co, Tl, Ba and B relative to adjacent metatuffite. However, only Zn, Pb, Ag, K 2 O/(K 2 O+Na 2 O) and Mn are significantly enriched relative to adjacent strata beyond the known lateral extent of the ore. Elevated copper, Co and Tl only occur in the vent-proximal part of the deposit, whereas

  • MULGA ROCK URANIUM AND MULTIELEMENT DEPOSITS,

    products of such weathering. The sequence has undoubtedly been affected by later weathering under the more arid environment that has prevailed since the mid-Miocene. MINERALIZATION The total resource at Mulga Rock is estimated to be 13 000 t of contained U in 10.8 Mt of ore with a mean grade of 0.12% U (Fulwood et al., 1990). The maximum grade

  • Types and Uses of Stone Crusher Machine

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  • Fluid Evolution in a Subvolcanic Granodiorite Pluton

    Fluid Evolution in a Subvolcanic Granodiorite Pluton Related to Fe and Pb-Zn Mineralization, Banská Štiavnica Ore District, Slovakia Peter Koděra; Peter Koděra Geological Survey of the Slovak Republic, Mlynská dolina 1, 817 04 Bratislava, Slovakia † Corresponding author: email, [email protected] Search for other works by this author on: GSW. Google Scholar. Jaroslav Lexa; Jaroslav Lexa

  • Minerals | Free Full-Text | Geochemistry of Hydrothermal

    Vein-type Cu-Pb-Zn mineralization is closely associated with intense hydrothermal alterations within the brecciation, quartz stockwork veining, and brittle fracture zones that are controlled by NW-SE trending faults cutting through the Eğrigöz granitoids. Paragenetic relationships reveal three stages of mineralization: pre-ore, ore, and supergene. The ore mineralogy typically includes