Myanmar s Mining Industry Realities and Visions for the

Zn-Pb-Ag Potential • Permo-Triassic back-arc volcanism in eastern Shan State polymetallic VHMS in Sukothai and Changning-Menglian belts Laocang Yunnan c. 20 Mt at 4.3 Zn 6.6 Pb 151 g/t Ag and 0.11 Cu) • Indosinian Triassic MVT Long Keng oxide Zn deposit c. 0.2 Mt at 35 Zn • Cretaceous MVT in Thailand Padaeng (Mae Sod) oxide Zn

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Variation in trace element content of magnetite

Résumé. Laser ablation ICP-MS analysis has been applied to many accessory minerals in order to understand better the process by which the rock formed and for provenance discrimi

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Skarns in Romania

Oct 19 2007 · The magnetite ore is considered to be related to the skarn proper while the hematite and the sulphides are of later hydrothermal origin. The initial grade of the iron ore was around 60 FeO. After extensive mining the grade has dropped to 1825 FeO. Sulphide ore grade was at the level of several percents for each Pb Zn and Cu with

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Trace element characteristics of magnetite Constraints on

Feb 01 2021 · The Wuyi Cu–Pb–Zn metallogenic belt is regarded as one of the 19 key metallogenic belts in China (Chen 2006 Yu et al. 2008 Yu et al. 2008) s northern part is adjacent to the Gan–Hang Tectonic Belt (GHTB) and is characterized by regional E–W-trending basement uplift and also includes a prominent NNE-trending series of Mesozoic volcanic basins including the Dongxiang

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Myanmar s Mining Industry Realities and Visions for the

Zn-Pb-Ag Potential • Permo-Triassic back-arc volcanism in eastern Shan State polymetallic VHMS in Sukothai and Changning-Menglian belts Laocang Yunnan c. 20 Mt at 4.3 Zn 6.6 Pb 151 g/t Ag and 0.11 Cu) • Indosinian Triassic MVT Long Keng oxide Zn deposit c. 0.2 Mt at 35 Zn • Cretaceous MVT in Thailand Padaeng (Mae Sod) oxide Zn

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The Archean Cu-Zn Magnetite-Rich Gossan Hill Volcanic

The Gossan Hill volcanic-hosted massive sulfide (VHMS) deposit is an Archean Cu-Zn-magnetite-rich deposit located in the Warriedar fold belt of the Yilgarn craton Western Australia. The deposit is hosted by redeposited rhyodacitic tuffaceous volcaniclastics of the Golden Grove Formation and is overlain by felsic volcanic rocks of the Scuddles Formation.

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MATERIALE MAGNETICE si stari de magnetizatie

Materiale diamagnetice sunt Cu Au Ag Zn Pb Ge Si H 2 etc. si au valori ale lui in gama (-0.3. Materiale paramagnetice sunt Al Cr Pb Mn Na K O 2 Fe 2 O 3 etc. si au susceptibilitatea magnetica cuprinsa intre (0.02 . La camp magnetic constant susceptibilitatea paramagnetica depinde invers de temperatura conform legii lui Curie

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Characteristic Features of REE and Pb–Zn–Ag

Oct 27 2016 · The sulfide veins and veinlets at the Na Son deposit are classified into Pb–Zn veins and Cu veins (Figs. 3B C). The widths of the sulfide veins and veinlets range from 1 to 15 cm and 1 to 10 mm respectively. The Pb–Zn vein is composed of a large amount of galena with lesser amounts of sphalerite pyrite and molybdenite.

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Fe-rich magmatic volatiles in the Ridgeway Au-Cu

Magnetite (± quartz) comb-layered textures occur in intrusions intimately associated with ore-bearing hydrothermal alteration assemblages at the Ridgeway alkalic porphyry Au-Cu deposit. These magnetite-rich textures imply that extremely Fe-rich magmatic volatiles accumulated within these silicic intrusions. Our micro-textural and micro-analytical study suggests that these Fe-rich magmatic

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/1 Vienna 20 1 Mineralogy mineral chemistry and petrology

The Cu-Fe-Pb-Zn-(Ag) mineralizations of the Pfunderer Berg formed due to hydrothermal processes related to the diorite intrusions in the area of Klausen (Exel 1998 Fuchs 1988). The Pfunderer Berg is part of several Pb-Zn-Cu-Fe-(Ag) mi-neralizations occurring in the contact area between the Per-

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Spiral Classifier For Cu Pb N Washing

Complete Cu Zn Pb And Screening Plant Strategy of combining a rapid screening of plant species possessing the ability to tolerate the complete details of the metal contamination at this site have been described by cao et al2001enerally pb cu and n were concentrated on the site pb cu n pb cu n gentiana ennelliana fern 1 10 212 0 0 0.

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U.S. Geological Survey Publications Warehouse

The occurrence of coarse lumps of magnetite in placer concentrates in Crystal Gul ch a short distance west of the monzonite stock at the Nixon Fork Mine (Brown 1926) Anomalous Cu Pb Zn Ag Au Bi in stream sediments (g) Ananalous Sn B i As Ag Cu Pb Zn St) in moderately magnetic

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Magnetite from Sweden

Rodney Allen Magnus Ripa Nils Jansson (2008) Palaeoproterozoic volcanic- and limestonehosted Zn-Pb-Ag-(Cu-Au) massive sulphide deposits and Fe oxide deposits in Bergslagen Sweden. 33 IGC excursion No 12 August 1420 2008 Åberg F. (2015) Mineralogical Study of Manganese Bearing Skarn Minerals and Manganese Content in Magnetite in

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Testing the plagioclase discriminator on the GEOROC

fide polymetallic and skarn-type Pb–Zn–Cu deposits which are currently either worked out or uneconomic. However most copper mined worldwide (around 75 Sillitoe 2010) is from porphyry copper deposits (PCD) which are relatively high tonnage but often low grade and are usually amenable to low-cost bulk-mining techniques.

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Preparation of Humic Acid/l-Cysteine-Codecorated Magnetic

Mar 12 2021 · A selectivity order of Hg 2 ≫ Pb 2 > Cu 2 ≫ Zn 2 > Cd 2 was summarized which was generally in agreement with those seen in single adsorption experiments in Table 1. It means that HA/LC-MNPs still show high selectivity toward Hg 2 in the presence of a 6000 times higher concentration of competing metal ions (Pb 2 Cu 2 Cd 2 and Zn

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Zinc Contents ofMafic Minerals in Granitic Rocks with

magnetite-seriesgranitic rocks are likely to be genetically related with the Cu-rich and Pb-Zn-richmineralizations respectively. The parallelism strongly suggests that frac­ tional crystallization is intimately related with the enrich­ ment and depletion ofCu Zn and Pb in the melt. Ofthese elements Zn contents ofmafic minerals can be obtained

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Cordilleran Epithermal Cu-Zn-Pb-(Au-Ag) Mineralization in

This corridor is zoned from Cu-(Au) ores in its inner parts (Smelter deposit) to peripheral Zn-Pb-(Ag) ores (Colquijirca deposit). The Smelter-Colquijirca corridor has undergone minor erosion providing a good example of a nearly intact paleo-epithermal system of the Cordilleran class.

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Preconcentration of Pb with Aminosilanized Fe3O4

Mg Na Ni and Zn (1000 ng mL 1 versus Pb 1 ng mL 1) on the preconcentration of Pb using bare magnetite was evaluated and some elements (Al Ni and Zn) were found to interfere with the Pb preconcentration. The aminosilanized Fe3O4 sorbent was found to be e

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Testing the plagioclase discriminator on the GEOROC

fide polymetallic and skarn-type Pb–Zn–Cu deposits which are currently either worked out or uneconomic. However most copper mined worldwide (around 75 Sillitoe 2010) is from porphyry copper deposits (PCD) which are relatively high tonnage but often low grade and are usually amenable to low-cost bulk-mining techniques.

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Myanmar s Mining Industry Realities and Visions for the

Zn-Pb-Ag Potential • Permo-Triassic back-arc volcanism in eastern Shan State polymetallic VHMS in Sukothai and Changning-Menglian belts Laocang Yunnan c. 20 Mt at 4.3 Zn 6.6 Pb 151 g/t Ag and 0.11 Cu) • Indosinian Triassic MVT Long Keng oxide Zn deposit c. 0.2 Mt at 35 Zn • Cretaceous MVT in Thailand Padaeng (Mae Sod) oxide Zn

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(PDF) Cyprus-type sulphide deposits in the western

These include Cu-Zn deposits related to Early Ordovician immature-arc sequences and supra-subduction zone ophiolites Cu ± Zn ± Pb and Fe-oxide deposits in mature-arc settings and Cu- or Zn

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EIS Co-funded Exploration Drilling Round 5 2012/13

Final list for publication r5_ r4r.docx- EIS Co-funded Exploration Drilling Round 5 2012/13 Applicant Name Drilling Project Title Target Commodities

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Magnetic Fe 3 O 4 /MnO 2 core–shell nano-composite for

Jul 14 2020 · Temperature effect on Cu Cd Zn or Pb removal were conducted at different temperature of 30 °C 40 °C 50 °C and 60 °C. The dosage was 1 g L −1 and the inial heavy ion contents of 10 mg L −1 adsorption of 24 h. The results showed that the adsorption of Zn

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The origin of skarn beds Ryllshyttan Zn–Pb–Ag magnetite

Jul 12 2011 · Jansson N (2009) The origin of the Ryllshyttan stratabound Zn–Pb–Ag–(Cu) magnetite deposit Garpenberg Bergslagen Sweden. Licentiate thesis Luleå University of Technology ISSN 1402–1757. pp 37.

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MetallogenyKPMM

Pirite-Cu Cr Fe Ti Pyrite Zn Cu Massive Sulphides Magmatic Massive Sulphides Oceanic crust Ophiolite complex (diabase-gabbro-pyroxenite-peridotite magma) Middle to Upper Triassic Pb Hg Fe Mn Pb Zn Cu W-Au Fe U Impregnation Stratiform Hydrothermal vein Skarn Continental shelf and oceanic crust Volcano-effusive (basaltic magma

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Zn-Pb-Ag skarn in French translation English-French

en In the Mount ReedMount Haskin area intrusive- and calc-hornfels-hosted stockwork Mo(−W) mineralization oxidized W–Mo and ZnPb –Cu skarn mineralization and AgZnPb vein mineralization are spatially associated with multiphase epizonal magnetite-bearing granite stocks of Eocene age emplaced into the Lower Cambrian Atan Group of the Cordilleran miogeocline.

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(PDF) Stratiform coticule-barite-sulphide horizons in the

Sediment-.hosted Pb-Zn(Cu-Ba) (Editors) (Eds.) Reviews in Mineralogy and Geochemistry 40 Sulfate Mineralisation within the Coastal Branches of the Damara Orogen Namibia Minerals crystallography geochemistry and environmental significance.A Review. Geologisches Jahrbuch Series D 111 1-139.

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Partitioning of V Mn Co Ni Cu Zn As Mo Ag Sn Sb

Most sulfide-silicate melt partition coefficients vary as a function of fO 2 with Mo Bi As (±W) varying by a factor >10 over the investigated fO 2 range Sb Ag Sn (±V) varying by a factor of 3-10 and Pb Cu Ni Co Au Zn Mn varying by a factor of 3-10. The partitioning data were used to model the behavior of Cu Au Ag and Bi during

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Magnetic nanostructures functionalized with a derived

Jan 22 2021 · The plotted linearized adsorption kinetics curves showed a better correlation of Zn and Cu with the pseudo-second-order which predicts that the rate-limiting step is chemical adsorption (Figure 7(c)) with correlation factors R 2 = 0.9844 for Cu and R 2 = 0.9926 for Zn. In this case it appears that this model is a dominant mechanism for Zn.

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Volcanic stratigraphy and lithogeochemistry of the Seneca

The Seneca Prospect is a volcanic-hosted Zn-Cu-Pb deposit 120 km east of Vancouver in southwestern British Columbia. Volcanic strata at Seneca form part of the Weaver Lake Member of the Lower to Middle Jurassic Harrison Lake Formation of the Harrison Terrane. The rocks at Seneca comprise four principal facies 1) vent to vent-proximal facies consisting of basaltic to rhyolitic lavas and

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Cu-Au mineralisation of the Cloncurry district

• Typically a lack of Pb-Zn in the Cu-Au deposits BUT not ubiquitous • Magnetite very common BUT not ubiquitous • Pyrrhotite common with or without magnetite not well documented • Some Cu-Au systems have no magnetite or pyrrhotite

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Alteration trends and geochemical characteristics of IOCG

Cu-Au-Ag-REE-U-Mo e.g. Olympic Dam Polymetallic skarn IOCG Cu-Pb-Zn polymetallic e.g. Punt Hill Magnetite-group IOCG Cu-Au-Co e.g. Cloncurry ±Manxman Cairn Hill IOA Magnetite-apatite Fe P V Th REE e.g. Kiruna type ±Manxman Cairn Hill IOA CG Silicification (<250°C) Low T K-Fe-H-CO2 Hem-Kfs/Musc-Carb-Chl-sulfides (<350°C) Mag to Hem

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Testing the plagioclase discriminator on the GEOROC

fide polymetallic and skarn-type Pb–Zn–Cu deposits which are currently either worked out or uneconomic. However most copper mined worldwide (around 75 Sillitoe 2010) is from porphyry copper deposits (PCD) which are relatively high tonnage but often low grade and are usually amenable to low-cost bulk-mining techniques.

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10 Economic Geology

Pb–Zn–Cu mineralization The richest epithermal mineral deposits occur close to major northeast-trending shear zones. Pb–Zn ore was once mined at Lin Ma Hang ( Plate 10.2 ) and on a small scale at Tai Mo Shan Silver Mine Bay and southeast Lantau Island ( Figure 10.1 ).

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COMPOSITIONAL VARIATION OF ARSENOPYRITE AND

Following magnetite deposition in the main prograde skarn (stage II) the first depositio n of Cu–Zn and polymetallic sulfide mineralization was introduced. The latest epi sode in the hydrothermal system (stage IV) is characterized by Zn–Pb–Ag mineralization in siderite–quartz veins. Decreasing As contents in arsenopyrite from

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Preconcentration of Pb with Aminosilanized Fe3O4

Mg Na Ni and Zn (1000 ng mL 1 versus Pb 1 ng mL 1) on the preconcentration of Pb using bare magnetite was evaluated and some elements (Al Ni and Zn) were found to interfere with the Pb preconcentration. The aminosilanized Fe3O4 sorbent was found to be e

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