 | | Journal (article/letter/editorial) | | ores at the Paleoproterozoic Black Angel deposit, central West Greenland S. Horn 1 & A. Dziggel 1 &...Abstract The Black Angel deposit represents the most important base metal deposit in Greenland, having produced...inclusions in sphalerite indicates that the Black Angel deposit may be host to an hitherto unrecognized...sphalerite and briartite co-precipitated from a hydrothermal fluid having an intermediate sulfidation state...mineralization, presence of anhydrite, and occurrence of hydrothermal breccias are consistent with an origin as Mississippi |  | | Book | | may require us to mine in pristine environments such as the deep sea-floor hydrothermal systems, in the... . . . 4 5 48 49 50 52 53 58 62 65 68 71 Hydrothermal Deposits . . . . . . . . . . . . . . . . . .... . . 4.2 Key Factors in the Formation of a Hydrothermal Ore Deposit . . . . . . . 4.2.1 Source of Metals.... . . . . . . . . . . . . . 4.3 Examples of Hydrothermal Deposits and Ore-Forming Processes . . . . ... . . . . . . . . . . . . 4.4 Other Types of Hydrothermal Deposit . . . . . . . . . . . . . . . . . . |  | | Book | | important but complex issue of the social license to mine. The final chapter provides a lively discussion of...result from the precipitation of minerals from hydrothermal fluids, and those that form in a sedimentary.... . . . . . . . . . . . . . . . . . . 4 5 Hydrothermal Deposits. . . . . . . . . . . . . . . . . ..... . . 4.2 Key Factors in the Formation of a Hydrothermal Ore Deposit . 4.2.1 Source of Fluid . . . ....Precipitation . . . . . . . . . . . . . 4.3 Examples of Hydrothermal Deposits and Ore–Forming Processes. . . . . |  | | Book | | has been placed on the importance of magmatic-hydrothermal processes for the vast majority of the metal...expertise regarding the occurrence and formation of hydrothermal metal deposits. Finally, my thanks to those...7 1.2.8 1.3 1.3.1 1.3.2 1.3.3 Copper-Bearing Breccia Pipes ............ . 22 23 24 26 29 30 33 34...Mineralization of Breccia Pipes...... . .. ..... . ...... .......... . ... 1.3.4 The Cumobabi Breccia Pipe Deposits...Deposits ................ . 4.5.2 The Homestake Gold Mine, South Dakota .. 4.5.3 Pre-Metamorphic Stratiform |  | | Book | | been a tendency among those who search for and mine industrial minerals to call them ‘ore’ and to measure...reluctance to allow large isolated have mines or mine a because ment unemploy into plunged communities...with many metals during this century has been to mine lower and lower grade ores. This has led to the...For example, to develop the large RTZ copper-gold mine at Bougainville, at 1979 prices. Papua New Guinea...mineralized breccia are particularly common, a good example being the copper-bearing breccia pipes of |  | | Book | | Metamorphic Deposits 2.7. Hydrothermal Processes 2.8. Examples of Hydrothermal Deposits 2.9. Summary 2...Relations of Ore Minerals and Assemblages 3.6. Hydrothermal Alteration 3.7. Zoning 3.8. Fluid Inclusions...Deposits 6.4. Examples 6.5. Ore Composition 6.6. Hydrothermal Alteration and Metamorp hism 6.7. Origin ofK...Deposits 10.5. Examples 10.6. Ore Composition 10.7. Hydrothermal Alteration 10.8. Metamorphism and Deformation...Deposits 11.5. Examples 11.6. Ore Composition 11.7. Hydrothermal Alteration 11.8. Origin 11.9. Metallogenesis |  | | Report (Issue volume) | | ee }. tak eee eee Gold deposits of Hill 50 Gold Mine NL at Mount Magnet M.J. Thompson, R.B. Watchorn... the. K44 Ironstone copper-gold deposit, Gecko mine a aeCina ViseNEGRO ONTONGsYVe) @ONC) ae ener ee...oo50050c0n0odoneoseeeacans Silver-lead-zine deposit at South Mine, Broken Hill MV CTRACIMEL GV ACTON GED Rew ASCCOT...Boddington gold mine Geology of Gabanintha gold deposits Cross section, Big Bell gold mine Cross section... Bottle Creek area Aerial view, Paddington gold mine Geological plan, Kalgoorlie gold field Rock and |  | | Book | | avec l'editeur. Gold-rich specimen fro1n the Don,e Mine, Tim1nins, Ontario that was presented to GSC in... may change the para1neters of the mathematical mine n1odel referred to above. Modifications to the 1nine...l-producing mines closed and only one (Voisey's Bay Ni-Cu mine in Labrador) opened. On the brighter side, the potential...related to 1nag1natic and/or associated convective hydrothermal syste1ns (e.g. Lydon, 1996). The age of these...deposits (Dube and Gosselin, 2007) is related to hydrothermal syste1ns generated by collisional tectono-thennal |  | | Report (issue) | | Aerial view of Main-Barton open pit, Jundee gold mine, WA, viewed from the east, June 1997. The pit is...Lewis and S Denn 335 Silver Swan, Cygnet and Black Swan nickel deposits J D Hicks and G D Balfe 339...which increased by 64%, iron ore 57%, zinc 50%, raw black coal 48%, nickel 47%, diamond 44%, bauxite 33%,...53.600 43 0.525 111 Mt Bauxite Bt Coal, black, raw Mt Coal, brown Mt Copper (a) 0.248 Mc...(ingot metal) kt 579 1 043 80 975 2 381 144 Black coal - coking - steaming Mt Mt 49 43 77 61 58 |  | | Report (issue) | | «2. of the eccisemene of the Misima Gold-Silver Mine, Papua New Guinea ........ .G. I. Wilson and R....C. Barwick eae ie Discovery. The McLaughlin Gold Mine, Napa, Yolo, and Lake Counties, California Fre...year of its founding at its annual meeting hydrothermal leaching explanation for metal source ognize...segregation theory, and many authors considered hydrothermal processes as the main accumulation mechanism...sulfides. These two main theories, magmatic and hydrothermal, still prevail in genetic considerations today |
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