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Journal articles on the topic 'Pb-Zn-Ag'

Author: Grafiati

Published: 4 June 2021

Last updated: 7 February 2022

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1

Dorleku, M. K., C. Tay, K. M. Kumi, D. K. Amoah, L. Yawson, and I. O. Hodgson. "Assessment of trace metal contamination by geochemical normalisation in sediments of two lagoons: A comparative study of the Kpeshie and Muni lagoons, Ghana." Ghana Journal of Science 62, no. 1 (2021): 37–50. http://dx.doi.org/10.4314/gjs.v62i1.4.

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Heavy metal contamination status of bottom sediments of two lagoons was compared by the employment of Enrichment Factor (EF) analysis for Iron (Fe), Manganese (Mn), Cupper (Cu), Lead (Pb), Chromium (Cr), Nickel (Ni), Silver (Ag), Zinc (Zn) and Mercury (Hg). Kpeshie Lagoon recorded enrichment (EF ≥ 1) for Cd, Pb, Ag, Hg and Zn, whilst Muni Lagoon recorded enrichment for Cd, Mn, Ag, Hg and Zn as metals of anthropogenic influence. Kpeshie, situated in a highly urbanized area, has 75% spatial distribution of Pb enrichment. The assessment shows that Ag and Hg are the most enriched metals in the sed

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2

Xu, Lei, Mi Yan, Xinying Wang, Wei Li, and Jinhui Peng. "The influences of silver and zinc addition on the electrochemical performances of the Pb–Ca–Sn Grids for lead acid batteries." Metallurgical Research & Technology 115, no. 6 (2018): 609. http://dx.doi.org/10.1051/metal/2018002.

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The silver and zinc addition on the electrochemical performances of the Pb–Ca–Sn Grids were investigated. The corrosion film structure, phase composition and electrochemical performances of Pb − 0.08 wt.% Ca − 1.2 wt.% Sn alloy, Pb − 0.08 wt.% Ca − 1.2 wt.% Sn − 0.03 wt.% Ag alloy and Pb − 0.08wt.% Ca − 1.2 wt.% Sn − 0.06 wt.% Zn alloy in a 1.28 g/mL of H2SO4 solution were studied by SEM observation, metallographic study, XRD, CV test and Constant DC discharge. It was found that the corrosion film of the alloy Pb – 0.08 wt.% Ca – 1.2 wt.% Sn appears as flaky crystal structure, while with the a

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3

Zhai, Degao, Anthony E. Williams-Jones, Jiajun Liu, et al. "The Genesis of the Giant Shuangjianzishan Epithermal Ag-Pb-Zn Deposit, Inner Mongolia, Northeastern China." Economic Geology 115, no. 1 (2020): 101–28. http://dx.doi.org/10.5382/econgeo.4695.

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Abstract The newly discovered Shuangjianzishan Ag-Pb-Zn deposit, with 145 Mt of ore grading 128.5 g/t Ag (locally up to 32,000 g/t) and 2.2 wt % Pb + Zn, is located in the Great Hinggan Range metallogenic belt, northeastern China, and is currently the largest Ag deposit in Asia. The Ag-Pb-Zn orebodies occur as veins and are hosted primarily by a Permian slate. Recent drilling and core logging have identified a partially Mo mineralized granite porphyry intrusion adjacent to the Ag-Pb-Zn mineralized veins. This well-preserved magmatic-hydrothermal system therefore offers an excellent opportunity

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4

Liu, Si Qing, Wan Ping Wang, Xiu Juan Li, and Min Zhang. "Differential Flotation of a Pb-Zn-CaF₂ Ore in Yunnan Province, China." Advanced Materials Research 634-638 (January 2013): 3331–34. http://dx.doi.org/10.4028/www.scientific.net/amr.634-638.3331.

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A representative Pb-Zn-CaF2 ore sample subjected to this experimental study was taken from Niujie lead-zinc complex, Honghe municipality, Yunnan province, China. The ore sample assays 2.49% Pb, 1.05% Zn, 43.20% CaF2 and 136g/t Ag. In this paper, process mineralogy, Pb-Zn minerals separation and fluorite flotation were investigated, and the optimum reagent dosages for the differential flotation were determined. Three concentrates can be obtained, i.e., the lead and zinc concentrates containing 71.10% Pb (3389.65g/t Ag) and 50.06% Zn (301.23g/t Ag) at the recoveries of 89.02% and 84.20%, respect

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5

Kawasaki, K., and D. T. A. Symons. "Paleomagnetism of the Mt Isa Zn–Pb–Cu–Ag and George Fisher Zn–Pb–Ag deposits, Australia." Australian Journal of Earth Sciences 58, no. 4 (2011): 335–45. http://dx.doi.org/10.1080/08120099.2011.562921.

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6

Zhang, Wan Wan, Hua Ming Peng, Jia Yong Peng, Fu Sheng Guo, and Fei Xia. "The Soil Geochemical Abnormal Characteristics in Eastern of Luonan County in Shanxi Province." Advanced Materials Research 662 (February 2013): 459–62. http://dx.doi.org/10.4028/www.scientific.net/amr.662.459.

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The study area is located in the north belt of Qingling latitudinal structural belt and contains well developed folds and faults directed EW and the iliceous carbonate sedimentary formations mainly in Lower Paleozoic Group and the sedimentary clastic rocks in Middle-upper Paleozoic Group. Tuyaowa anomaly belt, mainly with Au, As, Sb anomalies, is the favorable target for Au, As, Sb. Zhaizigou-Jianggou-Yujiagou anomaly belt, with Au, Ag, Cu, Zn, Mo anomalie, is the favorable target for Au, Ag, Cu, Zn, Mo. Miaowa-Houling abnomal belt, with Pb, Hg anomalies and Au, Ag, Zn, Mo weak anomalies, is t

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7

Mikulski, Stanisław Z., Sławomir Oszczepalski, Katarzyna Sadłowska, Andrzej Chmielewski, and Rafał Małek. "Trace Element Distributions in the Zn-Pb (Mississippi Valley-Type) and Cu-Ag (Kupferschiefer) Sediment-Hosted Deposits in Poland." Minerals 10, no. 1 (2020): 75. http://dx.doi.org/10.3390/min10010075.

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We applied geochemical (ICP-MS, WD-XRF, GFAAS, and AMA 254) and mineralogical (EPMA) studies of 137 samples to ore mineralization from Middle-Triassic sediment-hosted Zn-Pb (Mississippi Valley-type MVT) and Lower Zechstein sediment-hosted stratiform (SSC) Cu-Ag (Kupferschiefer-type) deposits in Poland. They contain a number of trace elements which are not recovered during the ore processing. Only Cu, Ag, Pb, Ni, Re, Se, Au, and PGE are extracted from Cu-Ag deposits while Zn and Pb are the only elements produced from Zn-Pb deposits. Zn-Pb deposits contain Cd, Ag, Ga, and Ba in slightly elevated

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8

Chen, Fang, Yun Fei Du, Rong Chang Zeng, Gui Sheng Gan, and Chang Hua Du. "Thermodynamics of Oxidation on Pb-Free Solders at Elevated Temperature." Materials Science Forum 610-613 (January 2009): 526–30. http://dx.doi.org/10.4028/www.scientific.net/msf.610-613.526.

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Based on the available thermodynamic and phase equilibria data, the thermodynamic criteria for oxidation in tin-based lead-free solders under soldering condition was deduced. The dependence of Gibbs free energy on temperature in Pb-free solder oxidation reaction was calculated by applying MATLAB program. The characteristics of oxidation reaction of a varity of solder alloy systems such as Sn-Ag, Sn-Cu, Sn-Sb, Sn-Zn, Sn-Ag-Cu and Sn-Pb eutectic alloys at elevated temperature were analyzed. The results suggested that zinc preferentially oxidized in Sn-Zn solder alloys in the elevated temperature

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9

Dinarsih, Dedeh, and Herry Rodiana Eddy. "PEMBUATAN BAHAN ACUAN BAKU UNTUK ANALISIS CONTO SEDIMEN SUNGAI AKTIF." Buletin Sumber Daya Geologi 12, no. 3 (2017): 194–209. http://dx.doi.org/10.47599/bsdg.v12i3.41.

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Pembuatan bahan acuan baku untuk analisis conto sedimen sungai aktif (standard reference material for stream sediment) merupakan bahan acuan sekunder dalam analisis laboratorium pengujian yang dapat menunjang akurasi serta presisi hasil analisis conto sedimen sungai sesuai SNI ISO/IEC 17025 : 2008 Komite Akreditasi Nasional.Pemercontoan bahan acuan baku ini dilakukan di wilayah Nagari Surian, Kecamatan Pantai Cermin, serta di wilayah Nagari Air Dingin dan Nagari Kotabaru, Kecamatan Lembah Gumanti, Kabupaten Solok, Provinsi Sumatera Barat dengan metode pengambilan secara acak. Parameter yang di

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10

Du, Shengjiang, Hanjie Wen, Shirong Liu, et al. "Mineralogy and Metallogenesis of the Sanbao Mn–Ag (Zn-Pb) Deposit in the Laojunshan Ore District, SE Yunnan Province, China." Minerals 10, no. 8 (2020): 650. http://dx.doi.org/10.3390/min10080650.

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The Sanbao Mn–Ag (Zn-Pb) deposit located in the Laojunshan ore district is one of the most important deposits that has produced most Ag and Mn metals in southeastern Yunnan Province, China. Few studies are available concerning the distribution and mineralization of Ag, restricting further resource exploration. In this study, detailed mineralogy, chronology, and geochemistry are examined with the aim of revealing Ag occurrence and its associated primary base-metal and supergene mineralization. Results show that manganite and romanèchite are the major Ag-bearing minerals. Cassiterite from the Mn

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11

Radosavljevic, Slobodan, Jovica Stojanovic, Aleksandar Pacevski, Ana Radosavljevic-Mihajlovic, and Vladan Kasic. "A review of Pb-Sb(As)-S, Cu(Ag)-Fe(Zn)-Sb(As)-S, Ag(Pb)-Bi(Sb)-S and Pb-Bi-S(Te) sulfosalt systems from the Boranja orefield, West Serbia." Annales g?ologiques de la Peninsule balkanique, no. 77 (2016): 1–12. http://dx.doi.org/10.2298/gabp1677001r.

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Recent mineralogical, chemical, physical, and crystallographic investigations of the Boranja orefield showed very complex mineral associations and assemblages where sulfosalts have significant role. The sulfosalts of the Boranja orefield can be divided in four main groups: (i) Pb-Sb(As)-S system with ?Fe and ?Cu; (ii) Cu(Ag)-Fe(Zn)-Sb(As)-S system; (iii) Ag(Pb)-Bi(Sb)-S; (iv) and Pb-Bi-S(Te) system. Spatially, these sulfosalts are widely spread, however, they are the most abundant in the following polymetallic deposits and ore zones: Cu(Bi)-FeS Kram-Mlakva; Pb(Ag)-Zn-FeS2 Veliki Majdan (Kolari

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12

Li, J., A. W. Rate, and R. J. Gilkes. "Fractionation of trace elements in some non-agricultural Australian soils." Soil Research 41, no. 7 (2003): 1389. http://dx.doi.org/10.1071/sr02146.

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The fractionation of Ag, Ba, Co, Cr, Cu, Ni, Pb, V, and Zn in highly weathered soils was investigated using 5 operationally defined fractions: exchangeable, organic, amorphous Fe oxides, crystalline Fe oxides, and residual fraction. Crystalline Fe oxide and residual phases were the dominant hosts of Ag in the original soils, but for soils to which soluble Ag was added, much Ag was in the crystalline Fe oxide fractions and only a relatively small proportion of Ag was in the residual fraction. Crystalline Fe oxides and the residual fraction were also the major hosts to Co, Cr, Cu, Ni, Pb, V, and

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13

Mansurov, M. I., B. H. Galandarov, U. I. Karimli, and A. I. Huseynov. "Distribution of Gold and Associated Ore-Bearing Elements in Gold-Copper-Pyrite Ores of the Kyzylbulag Deposit (Lesser Caucasus, Azerbaijan)." UNIVERSITY NEWS. NORTH-CAUCASIAN REGION. NATURAL SCIENCES SERIES, no. 3 (207) (October 2, 2020): 51–59. http://dx.doi.org/10.18522/1026-2237-2020-3-51-59.

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The article presents the results of studies of the distribution of gold and associated ore elements in gold-copper pyrite ores of the Kyzylbulag deposit. It was established that the elemental composition of ores and host rocks of the deposit includes Cu, Pb, Au, Ag, Ni, As, Sb, Bi, and Mo, of which Au, Cu, Ag, and Zn are the more stable. The behavior of elements was also studied for the entire ore body, as a result of which they are divided by cluster analysis at R (5 %) - 0.1 into two groups: 1) Au, Cu and Ag; 2) Pb and Zn. The closest relationship in the first group was found between Au and

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14

Tao, Zhongping, Bingli Liu, Ke Guo, et al. "3D Primary Geochemical Halo Modeling and Its Application to the Ore Prediction of the Jiama Polymetallic Deposit, Tibet, China." Geofluids 2021 (August 19, 2021): 1–13. http://dx.doi.org/10.1155/2021/6629187.

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The identification of primary geochemical haloes can be used to predict mineral resources in deep-seated orebodies through the delineation of element distributions. The Jiama deposits a typical skarn–porphyry Cu–polymetallic deposit in the Gangdese metallogenic belt of Tibet. The Cu–polymetallic skarn, Cu–Mo hornfels, and Mo ± Cu porphyry mineralization there exhibit superimposed geochemical haloes at depth. Three-dimensional (3D) primary geochemical halo modeling was undertaken for the deposit with the aim of providing geochemical data to describe element distributions in 3D space. An overall

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15

Radmard, Kaikhosrov, Hassan Zamanian, Mohamad Reza Hosseinzadeh, and Ahmad Ahmadi Khalaji. "Geochemistry and statistical analyses of porphyry system and epithermal veins at Hizehjan in northwestern Iran." Geologos 23, no. 3 (2017): 183–200. http://dx.doi.org/10.1515/logos-2017-0020.

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Abstract Situated about 130 km northeast of Tabriz (northwest Iran), the Mazra’eh Shadi deposit is in the Arasbaran metallogenic belt (AAB). Intrusion of subvolcanic rocks, such as quartz monzodiorite-diorite porphyry, into Eocene volcanic and volcano-sedimentary units led to mineralisation and alteration. Mineralisation can be subdivided into a porphyry system and Au-bearing quartz veins within andesite and trachyandesite which is controlled by fault distribution. Rock samples from quartz veins show maximum values of Au (17100 ppb), Pb (21100 ppm), Ag (9.43ppm), Cu (611ppm) and Zn (333 ppm).

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16

Mitovski, Aleksandra, Dragana Zivkovic, Dragan Manasijevic, Dusko Minic, Ljubisa Balanovic, and Nada Strbac. "Thermodynamic analysis and phase equilibria investigation in Pb−Zn−Ag system." Chemical Industry 64, no. 2 (2010): 99–103. http://dx.doi.org/10.2298/hemind100115007m.

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Physico-chemical processes that take place during the refining process in the extractive metallurgy of lead, are connected with ternary Pb?Zn?Ag system, which is necessary to study from the theoretical practical and aspects. Such investigation is important from production point of view, because of the phenomena that occur during desilvering of lead which is one of the important stages during lead refining process. Process of lead desilvering binds to ternary system Pb?Zn?Ag, which was the reason for numerous investigations, both from thermodynamic point of view and in terms of testing and dete

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17

Yiming, ZHAO, and LI Daxin. "Pb-Zn-Ag-bearing Manganoan Skarns of China." Acta Geologica Sinica - English Edition 78, no. 2 (2010): 524–28. http://dx.doi.org/10.1111/j.1755-6724.2004.tb00162.x.

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18

Stadler, Adrian-Mihail, Juan Ramírez, Jean-Marie Lehn, and Bruno Vincent. "Supramolecular reactions of metallo-architectures: Ag2-double-helicate/Zn4-grid, Pb4-grid/Zn4-grid interconversions, and Ag2-double-helicate fusion." Chemical Science 7, no. 6 (2016): 3689–93. http://dx.doi.org/10.1039/c5sc04403k.

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A Ag<sup>+</sup> dinuclear double-helicate was converted into a Zn<sup>2+</sup> tetranuclear grid, and a Pb<sup>2+</sup> grid, into a Zn<sup>2+</sup> grid; a Ag<sup>+</sup> heterostranded double helicate was obtained from two homostranded helicates.

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19

Testa, Francisco, Lejun Zhang, and David Cooke. "Physicochemical Conditions of Formation for Bismuth Mineralization Hosted in a Magmatic-Hydrothermal Breccia Complex: An Example from the Argentine Andes." Minerals 8, no. 11 (2018): 486. http://dx.doi.org/10.3390/min8110486.

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The San Francisco de los Andes breccia-hosted deposit (Frontal Cordillera, Argentina) is characterized by complex Bi–Cu–Pb–Zn–Mo–As–Fe–Ag–Au mineralization. After magmatic-hydrothermal brecciation, tourmaline and quartz partially cemented open spaces, followed by quiescent periods where Bi–Cu–Pb–Zn ore formed. Bismuth ore precipitation is characterized by Bi-sulfides, sulfosalts, and tellurosulfide inclusions, which temporally co-exist with Ag-telluride inclusions and chalcopyrite. Three distinct Bi mineralizing stages have been defined based on the following mineral assemblages: (1) Bismuthin

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20

Setyanto, Setyanto, and Setiady Setiady. "KANDUNGAN LOGAM DASAR DI DALAM ENDAPAN LETAKAN PANTAI DAN LEPAS PANTAI PERAIRAN PAMEUNGPEUK, GARUT, JAWA BARAT. INDIKASI ADANYA MINERALISASI HIDROTHERMAL DI DARAT." Buletin Sumber Daya Geologi 3, no. 3 (2008): 18–29. http://dx.doi.org/10.47599/bsdg.v3i3.165.

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Sebaran hasil analisis geokimia untuk logam dasar baik contoh-contoh pantai maupun lepas pantai memperlihatkan adanya pengelompokan kandungan baik untuk unsur-unsur Tembaga (Cu), Timbal (Pb), dan seng (Zn) ataupun logam emas (Au) dan perak (Ag). Perbedaan lingkungan pengendapan di pantai dan lepas pantai berpengaruh kepada kandungan logam dasar. Di lingkungan pantai kandungan unsur logam dasar yaitu Cu, Pb dan Zn rata-rata lebih tinggi dari pada lingkungan pengendapan lepas pantai. Kandungan emas (Au) dan perak (Ag) dipantai juga lebih tinggi di bandingkan dengan di lepas pantai. Sebaran logam

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21

Outa, James Omondi, Chrispin O. Kowenje, Christof Plessl, and Franz Jirsa. "Distribution of arsenic, silver, cadmium, lead and other trace elements in water, sediment and macrophytes in the Kenyan part of Lake Victoria: spatial, temporal and bioindicative aspects." Environmental Science and Pollution Research 27, no. 2 (2019): 1485–98. http://dx.doi.org/10.1007/s11356-019-06525-9.

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AbstractThis is the first detailed report on the distribution of Ni, As, Sr and Ag in water, sediments and macrophytes from Lake Victoria, complemented with recent data on the heavy metals Cr, Cu, Zn, Cd and Pb. The study was conducted over an 11-month period at five sites in the Kenyan part of Lake Victoria: four sites in the Winam Gulf influenced by various anthropogenic pressures including a site near Kisumu City, and one in the main lake, perceived to have lesser direct anthropogenic influence. Compared with the main lake site, the water in Winam Gulf had significantly higher values for el

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22

Mondillo, N., M. Boni, G. Balassone, M. Joachimski, and A. Mormone. "The Jabali nonsulfide Zn–Pb–Ag deposit, western Yemen." Ore Geology Reviews 61 (September 2014): 248–67. http://dx.doi.org/10.1016/j.oregeorev.2014.02.003.

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23

Arayamparambil, Jeethu Jiju, Markus Mann, Xiaohui Liu, et al. "Electrochemical Evaluation of Pb, Ag, and Zn Cyanamides/Carbodiimides." ACS Omega 4, no. 2 (2019): 4339–47. http://dx.doi.org/10.1021/acsomega.8b02748.

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24

Lottermoser, B. G. "Mobilization of heavy metals from historical smelting slag dumps, north Queensland, Australia." Mineralogical Magazine 66, no. 4 (2002): 475–90. http://dx.doi.org/10.1180/0026461026640043.

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AbstractSlag dumps occur at several historical smelting sites in north Queensland, Australia. The microcrystalline slags contain primary slag phases, relict flux, ore and furnace materials and secondary weathering related minerals. Common primary slag phases are glass, Zn-rich fayalite (± Zn-rich kirschsteinite) and Zn-rich hedenbergite. Other minor minerals include wollastonite, Zn-rich melilite, Zn-rich iscorite (Fe7SiO10), magnetite as well as a number of sulphides (pyrrhotite, galena, bornite, sphalerite, wurtzite), metallic phases (Ag, Cu, Pb, Sb), alloys (Cu3Sn), and unknown metal compou

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25

Oh, Chang Yul, Hee-Ra Roh, Young Min Kim, Jin Soo Lee, Hae Young Cho, and Young-Ho Kim. "A new solder wetting layer for Pb-free solders." Journal of Materials Research 24, no. 2 (2009): 297–300. http://dx.doi.org/10.1557/jmr.2009.0047.

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We developed a new Cu–Zn wetting layer for Pb-free solders. By adding Zn to the Cu wetting layer, intermetallic growth in the Sn–Ag–Cu (SAC) solder interfaces was delayed. Cu3Sn intermetallic compounds and microvoids were not observed in the SAC/Cu–Zn interfaces after aging. The drop reliability of the SAC solder/Cu–Zn joints was excellent.

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26

Cabała, Jerzy, Rafał Warchulski, Dariusz Rozmus, Dorota Środek, and Eligiusz Szełęg. "Pb-Rich Slags, Minerals, and Pollution Resulted from a Medieval Ag-Pb Smelting and Mining Operation in the Silesian-Cracovian Region (Southern Poland)." Minerals 10, no. 1 (2019): 28. http://dx.doi.org/10.3390/min10010028.

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Since the 12th century in the Silesian-Cracovian area, lead, litharge, and silver have been produced by the pyrometallurgical processing of Pb-Ag-Zn ore. Slags and soils contaminated with heavy metals (Zn, Pb, Cd, Fe, Mn, As) were the subject of this research. Samples were collected during archaeological works in the area of early medieval metallurgical settlement. The main goals of the analyses (Scanning Electron Miscroscopy-Energy Dispersive Spectroscopy (SEM-EDS), Electron Probe Microanalyzer (EPMA), X-ray diffraction (XRD), Atomic Absorption Spectroscopy (AAS)) were the determination of th

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27

Burt, R., T. Weber, S. Park, S. Yochum, and R. Ferguson. "Trace Element Concentration and Speciation in Selected Mining-Contaminated Soils and Water in Willow Creek Floodplain, Colorado." Applied and Environmental Soil Science 2011 (2011): 1–20. http://dx.doi.org/10.1155/2011/237071.

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Long-term mining activities in the mountains around Creede, Colorado have resulted in significant contamination in soils and water in the Willow Creek floodplain. Total major and trace were determined for soils and water and sequential chemical extraction for soils. Objectives were to determine concentrations and potential reactivity of trace elements and investigate their relationship with other soil and water properties. Water trace elements showed significant variability among sites, ranging from 347 to 12108 μg/L. Relative trend showed (Zn > Sr > Ba) > (Mn > W > Cd) > (Sn

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28

Zivkovic, D., D. Minic, D. Manasijevic, J. Sestak, and Z. Zivkovic. "Thermal analysis and prediction of phase equilibria in ternary Pb-Zn-Ag system." Journal of Mining and Metallurgy, Section B: Metallurgy 47, no. 1 (2011): 23–30. http://dx.doi.org/10.2298/jmmb1101023z.

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Ternary Pb-Zn-Ag system is typical for some physicochemical processes going on in refining phase in the extractive metallurgy of lead. Therefore, investigation of mentioned system is important from both theoretical and practical research of the phenomena occurring during the lead desilverizing process. The results of experimental investigation using differential thermal analysis (DTA) and thermodynamic calculation of phase equilibria in Pb-Zn-Ag system according to CALPHAD method, in the sections with Zn:Ag mass ratio equal to 90:10, 70:30 and 50:50, are presented in this paper.

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29

Cruzado-Tafur, Edith, Katarzyna Bierla, Lisard Torró, and Joanna Szpunar. "Accumulation of As, Ag, Cd, Cu, Pb, and Zn by Native Plants Growing in Soils Contaminated by Mining Environmental Liabilities in the Peruvian Andes." Plants 10, no. 2 (2021): 241. http://dx.doi.org/10.3390/plants10020241.

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The capability of native plant species grown in polluted post-mining soils to accumulate metals was evaluated in view of their possible suitability for phytoremediation. The study areas included two environmental liabilities in the Cajamarca region in the Peruvian Andes. The content of As, Ag, Cd, Cu, Pb, and Zn was determined in individual plant organs and correlated with soil characteristics. The degree of the pollution depended on the metal with results ranging from uncontaminated (Cd) to moderately (Zn), strongly (As, Cu), and extremely contaminated (Pb, Ag) soils. The metals were mainly p

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30

Pirri, Ida Venerandi. "Willyamite from the Pb-Zn-Ag-Sb deposit of Argentiera, Nurra, NW Sardina." European Journal of Mineralogy 4, no. 2 (1992): 395–98. http://dx.doi.org/10.1127/ejm/4/2/0395.

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31

Djunaidi, Muhammad Cholid, and Abdul Haris. "Pemisahan Logam Berat Menggunakan Membran Cair Berpendukung dengan Variabel Konsentrasi Ion Logam dan pH Fasa Umpan." Jurnal Kimia Sains dan Aplikasi 6, no. 2 (2003): 1–4. http://dx.doi.org/10.14710/jksa.6.2.1-4.

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Telah dilakukan penelitian tentang pemisahan logam berat Ag, Cu, Fe, Ni, Pb dan Zn menggunakan teknik Membran Cair Berpendukung (SLM) dengan asam di2etilheksilfosfat (D2EHPA) sebagai pembawa. Pemisahan dilakukan dalam perangkat SLM selama 5 jam. Analisa dilakukan dengan mengukur konsentrasi logam di fasa umpan dengan AAS dan pengukuran konsetrasi ion hydrogen dengan pH meter. Hasil yang diperoleh memperlihatkan bahwa tranport dipengaruhi oleh konsentrasi logam, konsentrasi ion hidrogen dan selektifitas pembawa terhadap logam. Pembwa D2EHPA cukup selektif untuk pemisahan logam berat dengan urut

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32

Lee, Jin Soo, Hyo Taek Chon, and Myung Chae Jung. "Toxic Risk Assessment and Environmental Contamination of Heavy Metals around Abandoned Metal Mine Sites in Korea." Key Engineering Materials 277-279 (January 2005): 542–47. http://dx.doi.org/10.4028/www.scientific.net/kem.277-279.542.

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In order to investigate the levels of heavy metal contamination and to assess the risk of the adverse health effects on human exposure to toxic heavy metals influenced by past mining activities, environmental geochemical surveys were undertaken around abandoned metal mine sites (Okdong Cu-Pb-Zn, Dokok Au-Ag-Cu and Hwacheon Au-Ag-Pb-Zn mines). High concentrations of heavy metals were found in tailings from the Okdong (72 As mg/kg, 53.6 Cd mg/kg, 910 Cu mg/kg, 1,590 Pb mg/kg, 5,720 Zn mg/kg), the Dokok (254 As mg/kg, 98.2 Cd mg/kg, 2,550 Cu mg/kg, 4,200 Pb mg/kg, 18,020 Zn mg/kg) and the Hwacheo

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Wei, Chen, Zhilong Huang, Zaifei Yan, Yusi Hu, and Lin Ye. "Trace Element Contents in Sphalerite from the Nayongzhi Zn-Pb Deposit, Northwestern Guizhou, China: Insights into Incorporation Mechanisms, Metallogenic Temperature and Ore Genesis." Minerals 8, no. 11 (2018): 490. http://dx.doi.org/10.3390/min8110490.

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The Nayongzhi Zn-Pb deposit, located in the southeastern margin of the Sichuan-Yunnan-Guizhou (S-Y-G) Zn-Pb metallogenic province, China, has been recently discovered in this region and has an estimated resource of 1.52 Mt of metal at average grades of 4.82 wt % Zn and 0.57 wt % Pb. The ore bodies are hosted in the Lower Cambrian Qingxudong Formation dolostone and occur as stratiform, stratoid and steeply dipping veins. The predominant minerals are sphalerite, galena, dolomite, calcite with minor pyrite, and barite. In this paper, the inductively coupled plasma mass spectrometry (ICP-MS) techn

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Li, Zhenli, Lin Ye, Yusi Hu, et al. "Trace elements in sulfides from the Maozu Pb-Zn deposit, Yunnan Province, China: Implications for trace-element incorporation mechanisms and ore genesis." American Mineralogist 105, no. 11 (2020): 1734–51. http://dx.doi.org/10.2138/am-2020-6950.

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Abstract The Sichuan-Yunnan-Guizhou Pb-Zn metallogenic province (SYGMP) is an important region for Pb-Zn resources in China. However, considerable controversy remains as to whether the Pb-Zn deposits are Mississippi Valley Type (MVT). The Maozu deposit, a typical example of the carbonate-hosted Pb-Zn deposits in the SYGMP, occurs in the late Ediacaran Dengying Formation and its ore bodies are divided into three types: lower layer (LL), vein layer (VL), and upper layer (UL) ore bodies based on their spatial relationship. In this study, laser ablation–inductively coupled plasma–mass spectrometry

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Kot, Karolina, Danuta Kosik-Bogacka, Natalia Łanocha-Arendarczyk, et al. "Interactions between 14 Elements in the Human Placenta, Fetal Membrane and Umbilical Cord." International Journal of Environmental Research and Public Health 16, no. 9 (2019): 1615. http://dx.doi.org/10.3390/ijerph16091615.

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The aim of the study was to investigate relationships between the concentrations of macroelements (Ca), microelements (Cr, Cu, Fe, Mn, Mo, Ni, Sn, Sr, V, Zn) and heavy metals (Ag, Cd, Pb) in the placenta, fetal membrane and umbilical cord. ‪Furthermore, we examined relationships between the concentrations of these metals in the studied afterbirths and maternal age, gestational age, placenta parameters (breadth, length, weight) and newborn parameters (length, weight and Apgar score). This study confirms previously reported Zn-Cd, Pb-Cd and Ni-Pb interactions in the placenta. New types of intera

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Wang, Jia, Qifei Huang, Ting Li, et al. "Bioleaching mechanism of Zn, Pb, In, Ag, Cd and As from Pb/Zn smelting slag by autotrophic bacteria." Journal of Environmental Management 159 (August 2015): 11–17. http://dx.doi.org/10.1016/j.jenvman.2015.05.013.

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Journal, Baghdad Science. "Preparation of New Complexes." Baghdad Science Journal 10, no. 3 (2013): 497–508. http://dx.doi.org/10.21123/bsj.10.3.497-508.

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This paper deals with the preparation and investigation studies of a number of new complexes of Cu(II) , Zn(II) , Hg(II) , Ag(I) , Pt(IV) and Pb(II).The complexes were formed by the reaction of the mentioned metal ions with the ligand which is derived from oxadiazole (OXB), 2- (2-butyl) thio-5- phenyl – 1,3,4 – oxadiazole in the mole ratio (1:1) , (1:2) and (1:3) (metal to ligand ).The result complexes having general formulae :M(OXB)Cl2] [M(OXB)X2]H2O [ M= Cu(II) , Zn(II) M= Hg(II) , Pb(II) [M(OXB)2 X2] X= Cl– M = Cu (II), Zn (II), Hg (II), Pb (II) X= Cl–, NO3-, CH3COO- [Pt(OXB)3]Cl4 [Ag(OXB)]

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Rueda, Luis. "Exploración geológica preliminar del Depósito Mineralógico del Cerro Huakajchi Chico en Bolivia." Revista Ingeniería 2, no. 3 (2020): 97–105. http://dx.doi.org/10.33996/revistaingenieria.v2i3.19.

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El objetivo del trabajo fue realizar sondeos de perforación a diamantina en relación a sondaje HCD-004. El área de estudio se localiza en la provincia Tomás Frías del departamento de Potosí. La campaña de prospección geoquímica, dio como resultado anomalías en Zn, Pb y Ag que corresponden a una estructura oxidada tipo stockwork emplazada en una ignimbrita (0,141 % de Zn, 0,149 % de Pb y 4,2 ppm de Ag). Se analizó la presencia de Sn por el método AAS Espectrofotometría de Absorción atómica - Fire Assays. Los sondajes HCD-005 y HCD-006 siguieron anomalías geoquímicas y la traza de la estructura

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Wei, Ma, Hou Jing, Chen Yao, Pan Mingchen, and Sun Hailong. "Mineralization and metallogenic model of Daletingchagan Pb-Zn-Ag polymetallic ore in Dong Ujimqin, Inner Mongolia." International Journal of Geology 1, no. 1 (2016): 14. http://dx.doi.org/10.26789/ijg.2016.002.

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Daletingchagan Pb-Zn-Ag polymetallic ore, located 70 km away to the Baogeda Mountain in Dong Ujimqin, Inner Mongolia, is a Pb-Zn-Ag polymetallic orefield, found based on that Geological prospecting institute of Liaoning province carry out the synthesis method for prospecting project of Baogeda forest field. This mineral deposit could be divided into two ore block, genetic types of west ore block is contact metasomatic type, east ore block is shallow epithermal deposit related to volcanic agencies and the subvolcanic, this paper is mainly on comprehensive study of east ore block mineralization,

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Djordjevic, P., N. Mitevska, I. Mihajlovic, Dj Nikolic, D. Manasijevic, and Z. Zivkovic. "The effect of copper content in the matte on the distribution coefficients between the slag and the matte for certain elements in the sulphide copper concentrate smelting process." Journal of Mining and Metallurgy, Section B: Metallurgy 48, no. 1 (2012): 143–51. http://dx.doi.org/10.2298/jmmb111115012d.

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This paper presents the results of investigating the dependence of distribution coefficient LS/MMe for: Cu, Zn, Pb, Sb, As, Ni, Ag, Au and Bi, between the slag and the matte, on the copper content in matte. The research was conducted under industrial conditions of copper concentrate smelting, in the reverberatory furnace in the copper smelter in Bor, Serbia. It was found that with the increase of the copper content in the matte, distribution coefficient between slag and matte for Cu, Zn and Pb increases, for Ag and Se decreases, while for Ni, As and Sb has an insignificant change. Au and Bi ar

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Witherly, Ken, and Graeme Mackee. "Geophysical Responses over the Cannington Ag-Zn-Pb Deposit-Queensland." ASEG Extended Abstracts 2015, no. 1 (2015): 1–5. http://dx.doi.org/10.1071/aseg2015ab179.

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Feltrin, L., J. G. McLellan, and N. H. S. Oliver. "Modelling the giant, Zn–Pb–Ag Century deposit, Queensland, Australia." Computers & Geosciences 35, no. 1 (2009): 108–33. http://dx.doi.org/10.1016/j.cageo.2007.09.002.

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Burney, David, and Clive R. Neal. "Method for quantifying and removing polyatomic interferences on a suite of moderately volatile elements (Zn, Se, Rb, Ag, Cd, In, Sb, Tl, Pb, and Bi) during solution-mode ICP-MS." Journal of Analytical Atomic Spectrometry 34, no. 9 (2019): 1856–64. http://dx.doi.org/10.1039/c9ja00003h.

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Batista-Rodríguez, José Alberto, and Marco Antonio Pérez-Flores. "Contribution of ERT on the Study of Ag-Pb-Zn, Fluorite, and Barite Deposits in Northeast Mexico." Minerals 11, no. 3 (2021): 249. http://dx.doi.org/10.3390/min11030249.

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The results on the effectiveness of five 2D electrical resistivity tomography (ERT) survey profiles for Ag-Pb-Zn, fluorite, and barite exploration Mississippi Valley Type (MVT) and on the magmatic deposits of northeast Mexico, are presented. The profiles were made in areas with mining activities or mineralization outcrops. Schlumberger, dipole-dipole, and Wenner array configurations were used on the measurements. The results showed that electric resistivity can be used to distinguish between mineralized zones. In magmatic-type Pb-Zn and MVT Pb-Zn deposits, resistivity values are shown as low.

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Chen, Chen, Xuanbing Wang, Ruidong Xu, et al. "PbO2 modified with TiO2-NTs composite materials with enhanced OER electrocatalytic activity for Zn electrowinning." RSC Advances 11, no. 11 (2021): 6146–58. http://dx.doi.org/10.1039/d0ra08448d.

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Scheffer, Christophe, Alexandre Tarantola, Olivier Vanderhaeghe, et al. "The Lavrion Pb-Zn-Ag–Rich Vein and Breccia Detachment-Related Deposits (Greece): Involvement of Evaporated Seawater and Meteoric Fluids During Postorogenic Exhumation." Economic Geology 114, no. 7 (2019): 1415–42. http://dx.doi.org/10.5382/econgeo.4670.

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Abstract The formation of ore deposits in the Lavrion Pb-Zn-Ag district was associated with Miocene detachment that accommodated orogenic collapse and exhumation of high-grade nappes across the ductile-brittle transition. This district consists of (1) low-grade porphyry Mo style, (2) Cu-Fe skarn, (3) high-temperature carbonate replacement Pb-Zn-Ag, and (4) vein and breccia Pb-Zn-Ag mineralization. The vein and breccia mineralization locally contains high-grade silver in base metal sulfides that are cemented by fluorite and carbonate gangue. The rare earth element contents of these gangue miner

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Chutas, N. I., and R. O. Sack. "Ore genesis at La Colorada Ag-Zn-Pb deposit in Zacatecas, Mexico." Mineralogical Magazine 68, no. 6 (2004): 923–37. http://dx.doi.org/10.1180/0026461046860231.

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AbstractLa Colorada, in Zacatecas State, Mexico is an epithermal Ag-Zn-Pb system hosted in Mesozoic calcareous sedimentary rocks overlain by Tertiary volcanic rocks. The dominant vein is associated with a fault system that accommodates Tertiary normal and strike-slip faulting. The ore consists of fahlore [(Cu,Ag)10(Zn,Fe)2(Sb,As)4S13], polybasite [(Ag,Cu)16Sb2S11]–pearceite [(Ag,Cu)16As2S11] solid solution, pyrargyrite [Ag3SbS3]–proustite [Ag3AsS3] solid solution, acanthite-argentite [Ag2S], and native silver; associated sulphides include galena, sphalerite, chalcopyrite and pyrite. The Ag:Sb

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Oertel, N. "Trend Analysis of Heavy Metal Concentration of the Suspended Matter in the River Danube." Water Science and Technology 29, no. 3 (1994): 141–43. http://dx.doi.org/10.2166/wst.1994.0086.

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The systematic investigation of heavy metal content in suspended matter is suitable for distinguishing point and non-point sources and for establishing trends of pollution if the dataset is analysed separately, considering the low and high average water discharge periods. At the examined reach of the Danube (at 1669 km) Ag,Cd,Cr,Cu,Ni,Pb and Zn can be considered as constant and/or intermittent pollutants derived from a few point sources of pollution situated upstream. In the late eighties Ag,Cd,Cu,Pb and Zn concentration of suspended matter had been increased mainly in the range of low average

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Sack, R. O., J. V. G. Lynch, and F. Foit. "Fahlore as a petrogenetic indicator: Keno Hill Ag-Pb-Zn District, Yukon, Canada." Mineralogical Magazine 67, no. 5 (2003): 1023–38. http://dx.doi.org/10.1180/0026461036750141.

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AbstractFahlores [~(Cu,Ag)10(Zn,Fe)2Sb4S13] from the Keno Hill mining district, central Yukon, Canada record virtually the entire petrogenetic history of a Cretaceous hydrothermal system extending over 40 km outward from the Mayo Lake granitic pluton. These fahlores are an essential constituent of polymetallic sulphide veins developed in a graphitic Mississippian quartzite, where they occur in association with sphalerite, pyrargyrite, galena and siderite. Fahlores exhibit pronounced east-west zoning in average Ag/(Ag+Cu) and Zn/(Zn+Fe) values, with these simultaneously increasing and decreasin

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Jian, Long, Jian Guo Gao, and Yan Dao. "The Elemental Association Characteristics of Pb-Zn Deposits in the Sichuan-Yunnan-Guizhou Border Area in Southwest China." Advanced Materials Research 868 (December 2013): 117–20. http://dx.doi.org/10.4028/www.scientific.net/amr.868.117.

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The Sichuan-Yunnan-Guizhou border region is one part of energy sources, and is the regions with most abundant petroleum mineral resources. This paper presents ore characteristics, the characteristics of the associations of primary minerals and gangues, concluding association between Lead-zinc ore and element combination in ore occurrences in Pb-Zn deposits, which summarize common element in Lead-zinc ore of Pb, Zn, Cu, Ag, Cd, Ge, As, Sb, Hg, Bi, Sn, Mn, Ba and so on.

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