Two Cu–Co sulfide phases and contrasting fluid systems in the Katanga Copperbelt, Democratic Republic of Congo

Desouky, Hamdy El; Muchez, Philippe; Cailteux, Jacques

doi:10.1016/j.oregeorev.2009.07.003

Cited by 89 publications

(44 citation statements)

References 59 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The presence of mineralized stylolites connected to mineralized sedimentary beds (Figure 10(b)) indicates that the vein mineralization in Tizert could be related to local remobilization, during compressional tectonics, of earlier sulphides rather than a separate mineralization generated by hydrothermal fluid circulation. Copper (re)mobilization has been documented in numerous sediment-hosted copper deposits [76][77][78][79][80]. At least two Cu-Co sulphide phases, diagenetic and synorogenic, are present in the Katanga Copperbelt [78].…”

Section: Timing Of Mineralization and Genetic Processesmentioning

confidence: 99%

“…Copper (re)mobilization has been documented in numerous sediment-hosted copper deposits [76][77][78][79][80]. At least two Cu-Co sulphide phases, diagenetic and synorogenic, are present in the Katanga Copperbelt [78]. In the Zambian Copperbelt, the primary diagenetic sulphide stock of the Lumwana Cu (-U) deposit has been remobilized for more than 40 Ma during the successive stages of Pan-African orogeny from burial, compressional tectonic deformation, and gravitational collapse [79].…”

Section: Timing Of Mineralization and Genetic Processesmentioning

confidence: 99%

See 1 more Smart Citation

Geology and Metallogenesis of the Sediment-Hosted Cu-Ag Deposit of Tizert (Igherm Inlier, Anti-Atlas Copperbelt, Morocco)

et al. 2017

View full text Add to dashboard Cite

The Tizert Cu-Ag deposit is the largest of a series of sediment-hosted copper deposits of the Anti-Atlas copper province in Morocco. Mineralized rocks in the deposit contain disseminated sulphides within a Late Ediacaran, dominantly siliciclastic sedimentary formation named the Basal Series. Isopach map of the Basal Series thickness shows that during the Late Ediacaran the area was composed of large subsiding zones separated by paleohighs. The ore-grade zones are well developed along basin margins adjacent to the basement paleohighs. These mineralized zones display a lateral sulphide zoning with central bornite-chalcocite zones grading outward to intermediate chalcopyrite and external pyrite zones. There is also a vertical sulphide zoning with evolution from bornite and chalcocite dominant mineralized rocks at the bottom to chalcopyrite and pyrite dominant mineralized rocks at the top of the lithostratigraphic succession. A second style of mineralization is represented by sulphide filled fractures and veins present in the Basal Series, as well as in the basement and the overlying dolomites. The similarity of the paragenetic sequences between the disseminated and the vein-hosted mineralization suggests that they may be related to the same mineralizing event, the disseminated style of mineralization being rapidly followed by the onset of the vein-style mineralization.

show abstract

Section: Timing Of Mineralization and Genetic Processesmentioning

confidence: 99%

Section: Timing Of Mineralization and Genetic Processesmentioning

confidence: 99%

Geology and Metallogenesis of the Sediment-Hosted Cu-Ag Deposit of Tizert (Igherm Inlier, Anti-Atlas Copperbelt, Morocco)

et al. 2017

View full text Add to dashboard Cite

show abstract

“…wt% NaCl) and temperature (80 -220 °C;El Desouky et al, 2009;Muchez et al, 2008). The present study uses the characteristics of this mineralizing fluid.…”

Section: Geological and Geochemical Constraints On Copper Mineralizationmentioning

confidence: 99%

“…A second mineralizing fluid, which was present in the subsurface of the Katanga Copperbelt during late burial, metamorphism and orogenesis has a much higher temperature (270 -385 °C) and salinity (35 -45.5 eq. wt% NaCl; El Desouky et al, 2009). This mineralizing event was not modelled.…”

Section: Geological and Geochemical Constraints On Copper Mineralizationmentioning

confidence: 99%

“…The results of the analyses of the fluid inclusions from the mineralization form the basic parameters, i.e. total salinity (2.12 mol/L) and temperature (El Desouky et al, 2009;Muchez et al, 2008) of the modelled fluids. The original source of the fluids was evaporated sea water of which the geochemistry was simulated with Phreeqc.…”

Section: Geological and Geochemical Constraints On Copper Mineralizationmentioning

confidence: 99%

See 1 more Smart Citation

Reactive transport modelling of ore mineral zoning and the paragenesis of copper sulfides in sediment-hosted stratiform ore deposits, the Katanga Copperbelt (DRC)

Muchez

Corbella²

2016

Geol. Belg.

Self Cite

View full text Add to dashboard Cite

ABSTRACT. Reactive transport modelling was carried out to simulate the transport and precipitation conditions of copper sulfide minerals in the sediment-hosted ore deposits of the Central African Copperbelt. The results illustrate the advancement of a mineral front due to the reaction of copper-rich fluids with host rocks. Chalcopyrite (CuFeS 2 ) initially precipitates in the reducing host rock and pyrite (FeS 2 ) dissolves, but the latter re-precipitates as a halo beyond the chalcopyrite. Continuous supply of copper causes the formation of the copper-rich sulfide bornite (Cu 5 FeS 4 ) followed by chalcocite (Cu 2 S) with precipitation of chalcopyrite and pyrite further down the flow direction. Anhydrite disappears where both copper sulfides and pyrite are precipitated. The modelled sulfide paragenesis and the general distribution of these minerals correspond to patterns observed in rocks within the Katanga Copperbelt.

show abstract

The Geology of the Mufulira Deposit

Muchez

Minnen

Dewaele

et al. 2019

Geophysical Monograph Series

View full text Add to dashboard Cite

Two Cu–Co sulfide phases and contrasting fluid systems in the Katanga Copperbelt, Democratic Republic of Congo

Cited by 89 publications

References 59 publications

Geology and Metallogenesis of the Sediment-Hosted Cu-Ag Deposit of Tizert (Igherm Inlier, Anti-Atlas Copperbelt, Morocco)

Geology and Metallogenesis of the Sediment-Hosted Cu-Ag Deposit of Tizert (Igherm Inlier, Anti-Atlas Copperbelt, Morocco)

Reactive transport modelling of ore mineral zoning and the paragenesis of copper sulfides in sediment-hosted stratiform ore deposits, the Katanga Copperbelt (DRC)

The Geology of the Mufulira Deposit

Contact Info

Product

Resources

About