Supergene Oxidation of Copper Deposits: Zoning and …

2011-5-30 · Well-developed copper oxide zones appear to form through two distinct mechanisms: (1) via substantial copper addition to a volume being oxidized, including the formation of exotic copper deposits, and (2) through in situ oxidation of a copper-bearing sulfide resource. Importantly, the first type of copper oxide system requires

Geology and Copper Sulphide Mineralization of the …

1998-11-1 · New data on the geology of the intrusion and associated mineralization have been obtained from drilling undertaken recently to explore the apatite and perovskite ores. As a result, a revised geological map of the intrusion has been compiled, and copper sulphide mineralization was recognized. The total number of drill holes completed in the ...

Physico-chemical conditions of ore deposition in …

2019-4-9 · Copper mineralization is confined mainly to the quartz-feldspar reef and has been traced to a strike length of ~- 1100 m. ... continuous heating beyond temperatures of disappearance of gas bubble did not lead to dissolution of solids, and the inclusions exploded. Probably, all these solids are captive solids i.e. solids entrapped along with the ...

Preliminary Model of Porphyry Copper Deposits

2008-10-9 · grade" copper mineralization is from approximately 0.8–1.1 km (West and Aiken, 1982). At Bingham, Utah, the greatest vertical extent of copper ore is approximately 1.4 km (Babcock and others, 1995). Form/Shape Deposits are typically semicircular to elliptical in plan view. Areal dimensions for ore and alteration (table 2) were calcu-

Announces Extension of Mineralization at its …

Exploration results from drilling completed during the first half of 2021 Identified three new deposits for a total of seven deposits at Copper World Confirmed the size and quality of the previously discovered Copper World, Broad Top Butte, Peach and Elgin deposits Expanded ''s private land package to support an operation entirely on private land Drill hole #186 …

Timing and formation of porphyry Cu–Mo mineralization …

2013-1-11 · The recently discovered Toki cluster, which includes the Toki, Quetena, Genoveva, Miranda, and Opache porphyry Cu–Mo prospects, is located 15 km south–southwest of the Chuquicamata–Radomiro Tomic mines in northern Chile. These prospects occur in an area of 5 × 6 km and are completely covered with Neogene alluvial deposits. Inferred resources for the …

Timing and genesis of Cu–(Au) mineralization in the Khetri …

2018-7-26 · The Khetri Copper Belt (KCB) in northwestern India contains several economically important hydrothermal Cu–(Au) deposits. Orebodies in these deposits are locally rich in monazite-(Ce). In this study, in situ U–Pb ages and Sm–Nd isotopic compositions of monazite-(Ce) are used to constrain the timing of mineralization and to better understand the genesis of …

Mineralization and Evolution of the Early Proterozoic …

2009-5-29 · Copper deposits in the Zhongtiao region are mainly hosted in the Neoarchean-Paleoproterozoic metamorphic terranes, and most of these deposits have been subjected to the ca. 1.85 Ga regional ...

Copper Mineral

Oxidized copper minerals are leached directly by H2 SO 4 –H 2 O solutions by reactions like: (5) CuO + H 2 SO 4 → Cu 2 + + SO 4 2 − + H 2 O. Leaching of sulfide minerals, however, requires an oxidant as well as H 2 SO 4. The most important oxidant is Fe 3+. It is generated from iron minerals by bacteria-assisted reactions with O 2 (from ...

The formation of porphyry copper deposits

2016-11-5 · Copper is a moderately incompatible chalcophile element. Its behavior is strongly controlled by sulfides. The speciation of sulfur is controlled by oxygen fugacity. Therefore, porphyry Cu deposits are usually oxidized (with …

40 Ar/ 39 Ar geochronology of copper mineralization and …

1999-2-1 · The 40 Ar/ 39 Ar dating of hydrothermal micas is used to determine the late metamorphic history of metacarbonate-hosted Cu ore deposition, regional metabasalt alteration, and relative uplift near the Proterozoic base metal deposit at Mount Isa, Queensland, Australia. Biotite that is broadly contemporaneous with the formation of the alteration envelope to the …

Two Ages of Copper Mineralization in the Mwombezhi …

2015-12-1 · Minor molybdenite accompanies the copper-iron sulfide minerals in two deposits and four prospects within the Mwombezhi dome as well as in deposits elsewhere in the Domes region. The results of Re-Os dating of 11 molybdenite samples reveal the existence of two discrete copper-mineralizing epochs, separated by >500 m.y.

Copper mineralization in the upper part of the Copper …

Copper mineralization in the upper part of the Copper Harbor Conglomerate at White Pine, Michigan Economic Geology. N – Goldschmidt Abstracts 2013 Mineralogical Magazine. Mineralogy and Geochemistry of the Parting Shale, White Pine, Michigan Economic Geology. D – Goldschmidt Abstracts 2013 ...

Can economic porphyry copper mineralization be …

1991-5-10 · Numerical simulation of chlorine and copper partitioning between a crystallizing melt and exsolving aqueous fluids indicates that "typical" calc-alkaline magmas contain sufficient copper, chlorine, and water to produce economic porphyry copper mineralization. Neither an elevated copper content in the magma nor an additional large volume of ...

Copper mineralization in sedimentary cover associated …

Copper mineralization occurs within the thick Cretaceous to Neogene sedimentary cover of central and northern Israel. Two distinct types of copper-rich anomalies are encountered. One form of copper mineralization is characterized by the presence of copper minerals such as malachite, atacamite, paratacamite, chrysocolla, and/or chalcopyrite forming veins and …

Ore geology of the copper sulfide mineralization in the …

2017-3-1 · Copper ore at Rudabánya. The copper content of the Rudabánya iron ore is a well-known feature since early times. Pantó estimated 0.15 wt% as the average Cu content of the primary siderite iron ore, mainly in the form of chalcopyrite with accessory bornite and tetrahedrite, unevenly enriched in the "spar edge."Koch et al. also described chalcopyrite (which substitutes …

Mesoproterozoic porphyry copper mineralization at …

2020-12-1 · Porphyry copper deposits and prospects are generated in magmatic arcs at convergent plate boundaries during active subduction (Sillitoe, 1972, Richards, 2003) or, less commonly, after subduction has ceased as a consequence of plate collision (Sillitoe, 2000, Hou et al., 2009, Richards, 2009).However, an unusual example of porphyry copper mineralization …

Geology and Mineralization | Granite Creek …

Zone C. Zone C was first discovered by Hudson''s Bay in 1971 as a copper in soil anomaly coincident with electromagnetic anomalies. It shows 110m of mineralization between trenches 9+50E and 14+50E reaching a width of 25 …

Characteristics Of Supergene Copper Oxides …

2019-1-31 · secondary copper mineralization associated with weathering of primary minerals in the volcanic host rocks in the Binamar area are examined. II. GEOLOGY OF THE SUDY AREA Binamar area is located in the northwest of Iran in the Ardabil province. Based on classification of structural units of Iran [6], Binamar area is situated in ...

GEOLOGICAL ASSESSMENT REPORT

2008-2-29 · mineralization (>0.1 per cent copper) occur near the contact between diorite and quartz diorite with weak zones of coppermolybdenum mineralization scattered throughout the diorite. The mineralization at the DANSEY prospect may be an indication of surface seepage from a structurally controlled, potentially economic zone of mineralization at depth.

Controls of alteration and mineralization in the Sungun …

1998-8-1 · The Sungun porphyry copper deposit is located in northwestern Iran (Azarbaijan province) and is associated with diorite-granodiorite to quartz monzonite of Miocene age which intruded Eocene volcano-sedimentary and Cretaceous carbonate rocks. Copper mineralization was accompanied by both potassic and phyllic alteration.

Frontiers | Delineation of Copper Mineralization Zones at …

2020-9-18 · The copper mineralization along Wadi Hamm, south of Masafi (location shown on Figure 13) is one of more than 120 known occurrences of copper mineralization in the United Arab Emirates, all located in the mountain areas between Dibba and Kalba. In the Wadi Hamm occurrence the main ore is a 50–60 m long thin massive sulfide lens extending north ...

C3 Metals Confirms High Grade Cu-Au Mineralization at …

2021-5-25 · Drill Program Expanded to 10,000 Metres TORONTO, ONTARIO – May 25, 2021 – C3 Metals Inc. (TSXV: CCCM) ("C3 Metals" or the "Company") is pleased to announce first assay results from its drill program at the Jasperoide Copper-Gold Project in southern Peru. Drilling commenced in February in the southern Montaña de Cobre Zone with 15 holes now …

Lufilian copper–gold mineralization in the Mkushi District, …

2022-1-14 · The copper–gold mineralization in the Mkushi district of central Zambia is hosted by Paleoproterozoic metamorphic rocks of the Mkushi gneiss (~ 2040 Ma) and Mesoproterozoic intrusions of the Irumide Belt (~ 1020 Ma). Mineralization is associated with a series of northeast-trending felsic intrusions of aplite, microgranite, and pegmatite defining a ~ 15-km-long …

Anomaly delineation of porphyry copper deposits of …

2022-7-23 · The major copper mineralization is associated with the intrusive rocks with granodiorite composition [33, 39, 42, 48, 49]. 3. Materials and methods Stream sediment geochemical mapping is a useful method for prospecting one a regional scale [2- 6, 13]. Four hundred fifty-one samples from north of

Structural Controls on Copper Mineralization in the …

2018-6-15 · Structures exert significant controls on hydrothermal mineralization, although such controls commonly have cryptic expression in geological datasets dominated by 2D maps. Analysis of spatial patterns of mineral deposits and quantification of their correlation with detailed structural features are beneficial to understand the plausible structural controls on …

First U-Pb LA-ICP-MS in situ dating of supergene copper …

2020-3-4 · Supergene copper mineralization (SCM) are important for the economic viability of several porphyry copper deposits worldwide. SCM imply secondary alteration related to sulfide oxidation and leaching of ore deposits in the weathering environment, and associated secondary sulfide enrichment (Ransome 1912).Two types of SCM have been recognized: (1) in situ SCM, …

Andean Copper Deposits: New Discoveries, Mineralization, …

1998-1-1 · Depending on Eh and pH conditions, copper may be transported through paleodrainage systems for distances of up to 8 km from source to produce continuous copper mineralization. The copper is deposited primarily in oxide form, but sulfide copper also may be present close to source.

Carube Intersects Over 360m of Copper Mineralization | INN

2017-11-24 · Continuous copper mineralization over 180.1m from 24.7m downhole in PSE ... mapping and ground geophysics is working towards defining drill targets at several showings on the Main Ridge Project ...

Defining IOCG signatures through compositional data …

2019-2-1 · The copper mineralization stage, with ore filling breccias dominated by chalcopyrite with subordinate bornite, occurs associated with abundant hematite replacing early magnetite crystals. Sericitization is a continuous post-mineralization process producing pervasive finely scaled white mica that is followed by epidote and carbonate formation ...

C3 Metals Continues to Intersect High Grade Copper at …

2021-7-27 · That section line confirmed 450 metres of laterally continuous copper-gold skarn mineralization. Two drill fans, for eight holes completed on section line JAS2700 (1,552.9m), confirm well-developed skarn and copper-gold mineralization for +500m laterally. The system remains open to the west, north and at depth (Figure 2) with results from the ...

(PDF) Controls on Stratabound Copper …

1988-1-1 · Controls on Stratabound Copper Mineralization at Klein Aub Mine and Similar Deposits within the Kalahari Copperbelt of South West Africa/Namibia and Botswana January 1988 DOI: 10.13140/RG.2.2 ...

Copper mineralization and alterations in Gercus Basalt …

2019-8-1 · The Gercus Basalt, the host of copper mineralization discussed in this paper, is the first volcanic body of its kind recently discovered in the Middle-Late Eocene Gercus Formation within a large, double-plunging Bekhair Anticlinal Mountain to the north of Duhok city, northern Iraq (Kettanah and Bamarni, 2018) (Fig. 1, Fig. 2).This basalt is an exceptional and rare …

Copper–Gold Skarn Mineralization at the ...

2015-9-29 · The copper-gold mineralization within the Karavansalija ore zone has not been a target of extensive studies, with data available mainly from technical reports. ... which constitute the majority of the aggregates. The sulfides rather seem to belong to a single continuous stage throughout which pyrite-marcasite aggregates started to precipitate ...

Supergene copper mineralization at the Lakeshore Mine, …

Sterling S. Cook; Supergene copper mineralization at the Lakeshore Mine, Pinal County, Arizona. Economic Geology 1988;; 83 (2): 297–309. doi: ... There is a continuous range of compositions from chrysocolla to copper-bearing clay in altered plagioclase phenocrysts. There is no continuous solid solution between chrysocolla and copper-bearing ...

Chapter 6 Copper Production Technology

1996-11-20 · discovered that heat made copper more malle-able. Casting and smelting of copper began around 4000-3500 B.C. (see figure 6-2). About 2500 B. C., copper was combined with tin to make bronze—an alloy that allowed stronger weapons and tools. Brass, an alloy of copper and zinc, probably was not developed until 300 A.D.