...Jajinjav Yondonjamts; Bolormaa Oyuntsetseg; Ochirkhuyag Bayanjargal; Makiko Watanabe; Lunchakorn Prathumratana; Kyoung-Woong Kim Abstract In order to investigate copper, arsenic, lead and zinc contamination in topsoil of the Erdenet copper mining area in Mongolia, soil samples collected from...

... rare earth elements (LREE) and lack of negative Eu anomalies. In the Erdenet mine district, the Selenge Intrusive Complex and major faults trend northwest ( Fig. 3 ). Late Triassic to Jurassic volcanic and sedimentary rocks form younger basins that may cover earlier porphyry systems of similar age...

... of the team permeated throughout the entire discovery history. The early chapters in the book focus on how the Magma Copper Company began to pursue exploration opportunities in Mongolia. Erdenet (mining corporation) sent representatives to the United States for training and to develop contacts with U.S...

... exploited by the Erdenet mine since 1977; it has production plus reserves of 9,180 kt of Cu and 270 kt of Mo ( Sillitoe et al., 1996 ). The Tsagaan Suvarga deposit is a prospect in southern Mongolia ( Fig. 1 ) and has reserves of 1,270 kt of Cu and 40 kt of Mo ( Sillitoe et al., 1996 ). Although detailed...

.... These pre-2006 years were the “heady days of exploration and discovery” in Mongolia. Are times like those to be seen again? The largest metal mine in Mongolia is the Mongolian-Russian state-operated Erdenet copper mine. The large majority of metal mines in Mongolia, however, are gold mines...

... rocks and zircons grains were measured from 13 ore-bearing intrusions in nine porphyry Cu deposits (with 0.6 to 12 Mt Cu), including Bozshakol, Nurkazghan, Kounrad, Borly, Aktogai, and Koksai in Kazakhstan, Baogutu, and Tuwu-Yandong in China, and Erdenet in Mongolia. All zircon grains show high Ce 4...

...A.P. Berzina; V.I. Sotnikov Abstract The Erdenet-Ovoo magmatic center (EOMC) lies within the North Mongolian magmatic area formed through the interaction of a Permo-Triassic plume with the lithosphere in an environment of active continental margin. Two stages are recognized in the EOMC history...

... that the type of the local surrounding of Zn coordinated to six oxygen atoms forming a distorted octahedron. Yondonjamps et al. investigated the potential harmful elements in the top soils surrounding the Erdenet copper mine, Mongolia. Cu, As and Mo high concentrations exceeded Mongolian National...

... the multiphase Erdenet pluton of the Selenga complex with stocks and dikes of polyrhythmic ore-bearing porphyry complex. The Erdenet pluton is composed of gabbroids, granodiorites, monzogranites, and leucogranites. The granitoids are associated with poor mineralization in the form of quartz-pyrite-chalcopyrite...

... = Erdenet, 7 = Zhireken, 8 = South Urals VMS group, 9 = Rudny Altai VMS group, 10 = Mirgalimsai, 11 = Zhairem, 12 = Bezymyannaya River, 13 = Dzhezkazgan,14 = Sukhoi Log, 15 = Bakyrchik, 16 = Kumtor, 17 = Muruntau, 18 = Yubileinoe, 19 = Berezovskoe. See Figures 3 and 4 for other symbols. Outside...

... from the cross section of the Erdenetuin-Obo ore stockwork. Porphyritic rocks of: 1 — rhythm II, 2 — rhythm I; 3 — granitoids of the Erdenet massif; 4 — boundary of ore stockwork; 5 , 6 — range of δ 34 S values: 5 — positive, 6 — negative; 7 — sampling locality and δ 34 S of pyrite...

... again? of trans- parency has CURRENT STATE OF tipped the METAL MINING advantage to other invest- The largest metal mine in Mongolia is ment sources. the Mongolian-Russian state-operated The Tumurtiin Erdenet copper mine. The large majority Ovoo zinc of metal mines in Mongolia, however, mine in Sukh...

.... The results include shaking intensity patterns and predicted seismic parameter values for degraded permafrost in zones of different climates and seismicity levels. The obtained prediction maps can make reference in studies of variable permafrost responses to temperature, seismic, and mining-related impacts...

..., Chase Minerals Philippines, Makati, Metro Manila, Philippines; M. Erken, Erdenet Mining Concern, Erdenet, Mongolia; VictorW. Fazakerley, Westchester Pty. Ltd., Cottesloe, WA, Australia; Craig A. Feebrey, Metal Mining Agency of Japan, Tokyo, Japan; Hillary N. Gumbo, Reunion Mining (Zimbabwe) Ltd., Harare...

.... Selby, J. Conliffe, and M. Judge 143 Isotope geochemistry of drainage from an acid mine impaired watershed, Oakland, California— Thomas W. Butler 1416 Formation of mixed Al-Fe colloidal sorbent and dissolved-colloidal partitioning of Cu and Zn in the Cement Creek – Animas River...

... of the Northwestern Cordillera of North America: Canadian Institute of Mining, Metallurgy and Petroleum Special Volume 46 , p. 795 – 802 . Cathles , L.M. , Erendi , A.H.J. , and Barrie , T. , 1997 , How long can a hydrothermal system be sustained by a single intrusive event? : Economic Geology...

... of the Selenga belt is the Erdenet granitic pluton in NE Mongolia, which contains a major porphyry copper–molybdenum deposit ( Gerel & Munkhtsengel 2005 ). The age of the mineralization is provided by a Re–Os date of 241 ± 0.8 Ma on molybdenite ( Watanabe & Stein 2000 ). According to Gerel...

... geologists at the Erdenet copper porphyry mine. Southern Mongolia a blast in the open pit during shift We express our gratitude to the SEG, In May 2018, a group of seven graduate change. McGill Earth & Planetary Sciences, the students from the McGill University Prospectors and Developers Association SEG...

... of the now defunct Northern Mining Company housed by the Geological Survey of Denmark and Greenland. The mineralization consists mostly of finely divided molybdenite localized to fractures in the rock ("molybdenum paint"), although some coarser molybdenite occurs in pegmatitic segregations in the granite...