Descriptions of major ore deposits world wide. Scuddles and Gossan Hill are two Archaean volcanic hosted massive sulphide Zn-Cu-Pb-Ag-Au deposits, located at Golden Grove, some 225 km east of Geraldton and 370 km NNE of Perth in Western Australia Location Scuddles - 28 44 41 S,116 56 37 E Gossan Hill - 28 45 54 S, 116 57 35 E. The two Golden Grove deposits are hosted within ...
First production from Gossan Hill copper oxide open pit. 1990 1991 1997 2002 2005 2008 2009 1971 -1979 ... Polymetallic, Golden Grove Zn, Pb, Cu, Ag, Au amp Magnetite. Stacked Deposits, Repetition through rock sequence. Occur as clusters within belts ... PbZn ore contains - Sphalerite ZnS, Galena PbS, Ag, Au. Copper Cu Ore ...
production started april 1975. plan 10,886 kg au and 46,654 kg ag per year. 250-300 ozday from oxide ore in 1991 transition ore expected to yeild 500-750 ozday over 3 years. oxide ore depleted, began mining transition ore in 1991-1992.
Ore Controls Carbonate rocks especially at shale-limestone contacts. Deposit may be hundreds of meters from intrusive. Weathering Gossan with strong Mn oxide stains. Geochemical SignatureZn, Pb, Mn, Cu, Co, Au, Ag, As, W, Sn, F, possibly Be. Magnetic anomalies. EXAMPLES Ban Ban, AUQU Ashley, 1980 Hanover-Fierro district, USNM Hernon and ...
Relict galena, pyrite and chalcopyrite are seen within the gossan. Early grid soil and gossan sampling returned values of up to 4000 ppm Pb and 3000 to 4000 ppm Zn in the Dariba area Raja Rao, et al., 1972. Near surface gossan to the north grades up to 3 Pb, 0.1 Zn and 200 gt Ag, with traces of Cu, Sb, As, Au, Hg and Mo.
oxide ore and barren weathered rhyodacite. The ore was sourced from a copper rich zone within MMGs VMS Gossan Hill deposit at Golden Grove and the rhyodacite was obtained from a quarry approximately 30km east of Melbourne, Australia. The Gossan Hill deposit is located 338km NNE of Perth in the Murchison Province of the Archaen Yilgarn Craton in
Nov 20, 2017 Figure 1c displays a cross-section of the main mining pit showing gossan cap classified as oxide ore layers on the surface covering siltstone and sandstone. In general, gossan rocks located over the main orebody were formed by erosion and oxidation of massive sulfide Romero et al. 2006 Velasco et al. 2013 .
Aug 06, 2014 Las Cruces is a base-metal deposit in the Iberian Pyrite Belt, one of the worlds best-known ore provinces. Here we report the occurrence of major Pb-Ag-Au
Ore magma type CuAu, CuFe Dongshizishan Hydrothermal Pb, ZnAuCu, Au Cu, Pb, Zn Yaojiali, Baimangshan, Caoshan, Cishan Porphyry Cu, CuAu, CuMo Shujiadia, deep of Donggushan, Hucunnan Sedimentation-hydrothermal superposition reworked type SAu, S-Fe, Fe Simenkou Gossan AuFe Ji Guan Shan
Mine life is based on average head grades of 2.44 Zn, 2.85 Pb, 0.34 Cu, 0.16 Sn, 0.75 gt Au, 69.8 gt Ag. Unplanned dilution due to the extraction of the stope was assumed to be 8 for the Gossan zone and 5 for the Massive Sulphide zone. Mining recovery of 90 was assumed for the Gossan and 93 for the Massive Sulphide. Metallurgy and ...
Abstract The Eastern Highlands of Australia have probably been in existence since the Late Cretaceous or earlier and so there has been ample time for mature gossan profiles to form over outcropping volcanogenic ZnPbCu mineralisation in the eastern Lachlan Fold Belt. The mature gossan profiles are characterised by the upward progression from supergene sulfides to secondary sulfates ...
open-pit operation has reserves of BOO 000 t of gossan ore grading 4.3 ozt silver.3 The Sierra de Cartagena orebodies exhibit distinct gossan type oxidllon zones, which are locally enriched in lead and. or sillier relative 10 the primary ores. Ore grades and the Pb IlDd Ag-bearing minerals in he oxide
Mar 15, 2019 This study reports data on the first occurrence of economic supergene Au in a near-surface silcrete horizon over the Scuddles volcanic massive sulfide VMS deposit in the Golden Grove district, Western Australia. A deep weathering profile was developed on dacite, rhyodacite, siltstone, and breccia that host primary Cu, Zn, and Pb sulfides with Au-Ag ore. From the base, the weathering
Plate 3.3 Common primary textures from the Gossan 33 Plate 3.4 Sedimentary features 34 Plate 3.5 Barite veining at the Gossan 35 Plate 3.6 Textures related to faulting 36 Plate 3.7 Veinlets and fractures-core to surface, Iron-oxide remobilisation 37 Plate 3.8 Laminated Hematitic Gossan outcrop 38
The uppermost sections of the massive sulphide mineralisation has been completely oxidised to an iron oxide gossan, with local enrichment of gold and silver. The gossan is generally 10 to 20 m thick, with grades averaging 5.9 up to 353 gt Au and 98 up to 1733 gt Ag, with an average of 0.20 Cu.
Gossan Mineralogy Gossans are the weathered, oxidised, surface expressions of underlying base and precious metal-bearing orebodies. Gossan evaluation is important in the field of exploration geology, because in many mineralised terrains, gossans provide the only visible indication of potentially economic ore hidden at depth.
Previous photo Pyromorphite Pb 5 PO 4 3 Cl. This photo Native silver. Both from the oxidized ore at Broken Hill. Silver enrichment in the oxidized zone made the mine highly profitable, and provided capital for the Broken Hill Proprietary Company BHP to diversify into steel-making, coal, iron-ore and other resources. BHP quit the field in
Oct 21, 2015 c. Elimination of processing non-ore rock through ore control and selective mining using Niton XRF sampling d. Smaller heap leach pad by elimination of non-ore rock comingled with high grade ore and thus lower heap leach pad construction cost and reagent costconsumption see b. above. e. Lower mining cost f. Lower haulage cost g.
Apr 27, 2016 The problem of treating oxidized lead-zinc ores for the production of high-grade lead zinc concentrates is a complex problem due to the nature of the ores and to the soft sliming characteristics of the lead and zinc minerals. The ore for treatment is a lead-zinc carbonate ore in a mixed siliceous-lime carbonate gangue.
oxide from surface and are located within potentially economic trucking distances from current copper oxide and primary ore processing facilities within the Cloncurry region. The Company will return to the field within days to recommence exploration and drilling aimed at maximising shareholder value. Table 1. Significant intercept table
Albitite-hosted UAu-Co Chl-Hem Chl-Cb-Hem Chl- Hem Kfs Cb Ser Cb-MagHem Cb, Ep LT Ca Fe Mg Cu, Ag, Pb, Zn Gossan Island Port Radium-Echo Bay district Epithermal cap, phyllic gossan, vein-type mineralisation CORRIVEAU et al. 2019 Molybdenite vein NICO Photo courtesy of A. H. Mumin
Recent Australian advances include development of the Isasmelt and Isamill technologies, which were developed to address problems associated with processing Zn-Pb ores from the North Australian Zinc Belt. The Isasmelt technology was developed in the 1970s to the 1990s to better meet more stringent environmental controls for lead smelting.
characteristics of the ore body pose particularly tough challenges for successful production forecast because of the mixed Zn-Pb-Cu base metals, the complex association of the beneficial Ag and Au, and the presence of influential elements such as Sb, Mn and Mg. There are few studies addressing the sulfide ores from Garpenberg,
Oct 21, 2015 Our discoveries of gossan with green copper oxide malachite in outcrop is unique and I think it is quite an ... will lead to a minable oxide copper ore ... search they will note the center Mo, Pb, Au Cu contours lie within the outer Mo contour just the opposite of a igneous ...
Gossan Au Pb Oxide Ore Processing. 40 years of mining machinery manufacturing history, three production bases, exported to more than 160 countries and regions, We are your trusted partner and service provider. If you are interested in our products, please leave your information, and we will have professional online marketing service for you.
Delays in processing exploration tenements ... Photographs of the gossan in a costean reveal Fe oxide-rich oat lying on a Northern Podsat red soil surface Schmidt, 1980. The surface expression of ... Au, As, Fe, Cu, Pb indication of the 7 Mt of ore located 450 m below.
Feb 24, 2009 But although the sulfide ore is Pb rich, the supergene ore has a very low Pb content. During the oxidation process, Pb is retained as anglesite or cerussite, depending on the relative activities of sulfate ions and carbonate species in the meteoric water Sangameshwar amp Barnes, 1983, but it also enters the structure of many supergene phases e ...
In this paper, sulfuric acid leaching was carried out to assess the effect of several parameters on metal extraction in a low grade complex gossan ore in which the grade of zinc and iron is 13 and 40.2, respectively. Parameters, such as sulfuric acid concentration, liquid to solid ratio and leaching temperature, were studied. The results show that the zinc leaching rate is almost 80, while ...
1 Ore Deposits ORE DEPOSIT TYPES AND THEIR PRIMARY EXPRESSIONS K.G. McQueen CRC LEME, Australian National University, Canberra, ACT 0200
The iron and manganese ores occur as distinct sedimentary layers alternating with iron and manganese-poor sedimentary layers - the whole mass is sometimes mined. Iron ores of this type are commonly termed the banded iron formation or simply abbreviated as BIF. All ore minerals in these deposits are oxides and hydroxides.
Lead Pb oxide ore sulfate concentrate with Lead above 30. Lead Pb slag ash from battery recycler. Lead Pb ash from battery recycler with Lead above 25. ... Gold Au ash dust cement residue with Gold above 20ppm. Silver Ag spent catalyst. Silver Ag spent catalyst with Silver above 1000ppm.
Lead processing, preparation of the ore for use in various products. Lead Pb is one of the oldest metals known, being one of seven metals used in the ancient world the others are gold, silver, copper, iron, tin, and mercury. Its low melting point of 327 C 621 F, coupled with its easy
As can be seen from Table 8, using the process shown in Fig.5 to deal with the ore, copper concentrate containing 22.67 Cu at a recovery of 91.77 , lead concentrate containing 18.10 Pb at a recovery of 12.74 , zinc concentrate containing 47.13 Zn at a recovery of 88.00 , sulfur
The gossan sulphide relationship suggests that the deposit has been uplifted while the hanging wall of the felsic sequence has been eroded. The in-situ gossan consists mainly of iron oxide-hydroxides with minor silicate gangue. Distinct gossan textures have been observed such as massive gossan, in which the box-work fabric is more or less
Jan 22, 2015 IOCG Iron Oxide Copper Gold Ore Deposits goes with porphyries as they are also loosely associated with a large felsic intrusions and form at moderate depths, unlike the dominantly tertiary porphyries IOCGs tend to be much older and are