Geology of the Chuquicamata Mine: A Progress Report

  title={Geology of the Chuquicamata Mine: A Progress Report},
  author={Carolina Ossand{\'o}n and C Roberto Fr{\'e}raut and Lewis B. Gustafson and Darryl D. Lindsay and Marcos Zentilli},
  journal={Economic Geology},
Chuquicamata, in northern Chile, is the world’s greatest copper orebody. It was controlled, from the initial intrusions (probably at 36–33 Ma) through mineralization (last major hydrothermal event at 31 Ma) to postmineral brecciation and offset, by the West fault system. East porphyry, West porphyry, Banco porphyry, and Fine Texture porphyry make up the Chuqui Porphyry Complex. East porphyry, the dominant host rock, has a coarse, hypidiomorphic-granular texture. Intrusive contacts between most… Expand
Chuquicamata , the world ’ s greatest copper orebody
Chuquicamata, in northern Chile, is the world’s greatest orebody. It was mainly controlled by initial intrusions (probably at 36 to 33 Ma) through mineralization (last major hydrothermal event at 31Expand
Timing and formation of porphyry Cu–Mo mineralization in the Chuquicamata district, northern Chile: new constraints from the Toki cluster
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 TomicExpand
Reported supergene sphalerite rims at the Chuquicamata porphyry deposit (northern Chile) revisited: Evidence for a hypogene origin
Previous studies attributed a supergene origin to sphalerite rimming copper minerals occurring in Chuquicamata in a mineral assemblage including typically chalcocite-digenite (Cu1.85S1.12 andExpand
The MMH deposit is located 7 km to the south of the Chuquicamata mine within the Chuquicamata District in northern Chile, in the Domeyko Cordillera. The two deposits are located on opposite sides ofExpand
The Butte Magmatic-Hydrothermal System: One Fluid Yields All Alteration and Veins
Mine exposures and deep drilling reveal that the Butte porphyry Cu-Mo ores occur in two, internally zoned domes with alteration assemblages containing biotite, K-feldspar, sericite, and chlorite. AExpand
Geology, geochemistry and genesis of the Namosi porphyry Cu-Au deposits, Fiji
The porphyry Cu-Au(-Mo) deposits of the Namosi district are located 30 km west-northwest of Suva, southeastern Vitu Levu, Republic of Fiji. The district comprises three principal porphyry depositsExpand
Mineralogy and mineral geochemistry of the Tuwu porphyry Cu deposit, Eastern Tianshan, NW China: implication for the ore-forming condition and Cu mineralization
The Tuwu deposit is one of the largest porphyry copper deposits in Eastern Tianshan, NW China. The widespread hydrothermal alteration is associated with porphyries and their wall-rocks in theExpand
Geochronology of the Xiaodonggou Porphyry Mo Deposit in Northern Margin of North China Craton
The Xiaodonggou porphyry Mo deposit is located in the Mesozoic calc-alkaline Xiaodonggou granitoid within a Palaeozoic fold zone of northern China. The mineralization mainly occurred in an area ofExpand
Evidence of Ediacaran glaciation in southernmost Brazil through magmatic to meteoric fluid circulation in the porphyry–epithermal Au–Cu deposits of Lavras do Sul
Abstract The Lavras do Sul Au–Cu mining district, southern Brazil, hosts an Ediacaran plutonic–volcanic association with hydrothermal alteration. This association is interpreted as a ca . 600–580 MaExpand
Porphyry deposits and oxidized magmas
Abstract Porphyry deposits supply most of the world's Cu and Mo resources. Over 90% of the porphyry deposits are found at convergent margins, especially above active subduction zones, with much fewerExpand


The primary mineralization at Chuquicamata, Chile, S. A
The structural relations, rock alteration and sulphide mineralization of the Chuquicamata Mine are described in detail. Attention is directed to the zonal arrangement of the different types ofExpand
Multiple Centers of Mineralization in the Indio Muerto District, El Salvador, Chile
The porphyries that formed copper deposits in the Indio Muerto district include both 44 Ma rhyolitic subvolcanic intrusions and 42 to 41 Ma granodioritic stocks and dikes. All are aligned for 4 kmExpand
Evolution of an Active Ductile to Brittle Shear System Controlling Mineralization at the Chuquicamata Porphyry Copper Deposit, Northern Chile
The giant Eocene-Oligocene Chuquicamata porphyry copper deposit in northern Chile illustrates a remarkable degree of structural control from the time of porphyry emplacement throughExpand
Fission track thermochronology of the Domeyko Cordillera, northern Chile; implications for Andean tectonics and porphyry copper metallogenesis
The Domeyko Cordillera, the westernmost uplifted crustal block of the composite High Andes of northern Chile (20 degrees S to 28 degrees S) hosts a narrow N-S trending belt of Late Eocene-OligoceneExpand
Epochs of intrusion-related copper mineralization in the Andes
Abstract Seventy-four copper deposits and prospects related intimately to intrusive activity in the Andes have been dated radiometrically during the last 18 years by many different investigators,Expand
40 Ar/ 39 Ar geochronology of Cu-Au and Au-Ag mineralization in the Potrerillos District, Chile
High resolution 40 Ar/ 39 Ar dating of porphyry stocks and related hydrothermal minerals from porphyry copper and epithermal precious metal deposits in the Potrerillos district of Chile demonstratesExpand
Age of supergene oxidation and enrichment in the Chilean porphyry copper province
Twenty-five samples of supergene alunite collected from deeply developed supergene profiles in porphyry copper deposits and prospects between latitudes 20 degrees and 27 degrees S in northern ChileExpand
Deep hypogene oxidation of porphyry copper potassium-silicate protore at Butte, Montana; a theoretical evaluation of the copper remobilization hypothesis
The oxidation effects of potassium-silicate protores from heated meteoric water have been thermodynamically computed and confirm previously described copper vein-forming mechanisms involving hypogeneExpand
Relationship between copper tonnage of Chilean base-metal porphyry deposits and Os isotope ratios
Re-Os isotopes in pyrite and chalcopyrite from early high-temperature hypogene alteration assemblages in Chilean porphyry copper deposits identify the source of Os and, by inference, Cu in these oreExpand
High-precision 40Ar/39Ar dating of two consecutive hydrothermal events in the Chuquicamata porphyry copper system, Chile
40Ar/39Ar data have been used to resolve the relatively high temperature (>350°C) potassic alteration event at Chuquicamata from the lower temperature (<350°C) quartz–sericite alteration phase. FourExpand