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A sulfur, carbon, oxygen, and strontium isotope study of the volcanic-hosted El Soldado manto-type copper deposit, Chile: The essential role of bacteria and petroleum January 2003 Economic Geology ...
While sulfur isotope data for the bulk of Jurassic CMT deposits, northern Chile, suggests a predominant magmatic source in their origin (mean = -2.7 ± 1.9‰, 1σ), contributions of a magmatic component is only likely to be …
Porphyry Cu ± Mo ± Au and iron oxide copper-gold (IOCG) deposits share many similarities (e.g., Fe, Cu, and Au contents), but also have important differences (e.g., the predominance of sulfide minerals in porphyry deposits and iron oxides in IOCG deposits). Genetic comparisons are complicated by the broad definition of IOCG …
The driest, highest desert on Earth, Chile's Atacama Desert, also holds the world's richest nitrate and iodine deposits. As such, a …
Oxygen and sulfur isotopic compositions of quartz, anhydrite and sulfide minerals from the El Teniente and Rio Blanco porphyry copper deposits, Chile.
Richards, J. et al. Contrasting tectonic settings and sulfur contents of magmas associated with cretaceous porphyry Cu ± Mo ± Au and intrusion-related iron oxide Cu-Au deposits in Northern Chile ...
Sulfur isotopic compositions of sulfate deposited at T2-T8 were similar to those in local surface soil; however, three sites near the Chuquicamata mine showed …
Magmatic Evolution of Granodiorite Intrusions at the El Salvador Porphyry Copper Deposit, Chile, ... Gulch are apparently directly linked to magmatic degassing at ~700°C to produce large amounts of ore-forming copper, sulfur, and chlorine-enriched magmatic-hydrothermal aqueous fluids.
In 2023, China produced around 19 million metric tons of sulfur, making it by far the world's leading sulfur producer. Sulfur is one of the most common chemical elements found in nature.
One of the places where sulfur lava flows seem to be more common is the Andes of northern Chile. In this part of the world, many volcanoes have active fumaroles (gas vents) that release sulfur and their summits can be covered with sulfur deposits that came from all these hot, acidic volcanic gases rising through the volcano.
The Eocene (42 to 41 Ma) El Salvador porphyry copper deposit in the Indio Muerto district, northern Chile (26° 15′ S Lat.), formerly thought to have formed at the culmination of a 9-m.y. period of episodic magmatism, is shown by new mapping, U-Pb and K-Ar geochronology, and petrologic data to have formed during the younger of two distinct but …
Chile 1,500 1,500 for the foreseeable future. Because China. 4. ... World Resources: Resources of elemental sulfur in evaporite and volcanic deposits, and sulfur associated with natural gas, petroleum, tar sands, and metal sulfides, total about 5 billion tons. The sulfur in gypsum and anhydrite is
The Magmatic to Magmatic-Hydrothermal Evolution of the El Laco Deposit (Chile) and Its Implications for the Genesis of Magnetite-Apatite Deposits. Econ. Geol 112, 1595–1628 (2017).
Iron oxide-copper-gold (IOCG) deposits are a globally important source of copper, gold and critical commodities. Despite their relevance, IOCG deposits remain an ill-defined clan, with a range of ...
We compared the in situ isotopic and trace element chemistry of early, massive pyrite crystals hosting enargite–tennantite mineralization from high-temperature …
Strata-bound, manto-type copper deposits of Chile are a major source of copper, and some deposits (e.g., Mantos Blancos, El Soldado) contain as much metal as do large porphyry copper deposits elsewhere. El Soldado (200 Mt @ 1.35% Cu), the largest manto-type copper deposit in the Coastal Cordillera of central Chile, is hosted by the …
Porphyry copper deposits contain significantly more sulphur ... The porphyry copper deposit at El Salvador, Chile. Econ. Geol. 70, 857–912 (1975). Article Google Scholar
Introduction Epigenetic Native Sulfur Deposits. Native sulfur is formed by a number of abiotic and biological processes in a multitude of settings such as deeply buried sediments by thermochemical sulfate reduction (Warren, 2006), seafloor hydrothermal systems (Butterfield et al., 2011; Seewald et al., 2015), at volcanoes (e.g., in Chile; Ferraris and …
The negative sulfide isotopic range of bornite minerals in the Mari deposit, and suggests a bacteriogenic sulfur source for these deposits. Bacteriogenic sulfur source mechanism suggested for ...
Elemental sulfur can be found near hot springs and volcanic regions in many parts of the world, especially along the Pacific "Ring of Fire"—a zone of frequent earthquakes and volcanic eruptions encircling the Pacific Ocean. Such volcanic deposits are currently exploited in Indonesia, Chile, and Japan.. Significant deposits of elemental sulfur also …
While sulfur isotope data for the bulk of Jurassic CMT deposits, northern Chile, suggests a predominant magmatic source in their origin (mean = − 2.7 ± 1.9‰, …
High Cu (400–3200 ppm), S (380–2530 ppm) and Cl (460–2090 ppm) concentrations were also measured in the amphibole daughter phases. Sulfur in the precipitates and the amphibole daughter phases are predominantly present as S 2− based on the S Kα peak position. Solid phases in SMI in plagioclase melt completely at 1140 …
Sulfur isotope and trace element systematics of zoned pyrite crystals from the El Indio Au–Cu–Ag deposit, Chile March 2016 Contributions to Mineralogy and Petrology 171(4)
Such a good correlation between the chemical composition of molten sulfur and fumarolic deposits suggests that the molten sulfur observed in January 2019 corresponds to the melting of previously existing fumarolic deposits and/or that all of these species were transported by the same gas phase (e.g., Symonds et al., 1992; Taran et …
Porphyry copper deposits (PCD) are responsible for ~ 70% of Cu and ~ 25% of Au production worldwide 1.Although arc magmas are clearly responsible for PCD formation, the genetic details remain elusive.
The finding of sulfur radicals concentrating gold at depth suggests that huge, so far unknown deposits still await discovery. This conclusion agrees with recent estimations of economic gold resources to a depth of only 3 km of Earth's continental crust ( 47 ), which are ∼40 times larger than gold reserves in currently known deposits ( 48 ).
b) Sulfur produced by bacteriogenic sulfate reduction: originally postulated by Spiro and Puig (1988) and Munizaga et al. (1994) for some Lower Cretaceous deposits and evolved by Wilson et al. (2003b) for the Lower Cretaceous El Soldado deposit. The genetic model proposed for El Soldado deposit considers two mineralizing
Speculative interpretation suggests that Late sulfur was derived either from remobilization of Early assemblages below the deepest levels of exposure or from volcanic wall rocks surrounding the deposit, rather than from continued emanations from the underlying magma chamber that was the source of Early mineralization.
While sulfur isotope data for the bulk of Jurassic CMT deposits, northern Chile, suggests a predominant magmatic source in their origin (mean = − 2.7 ± 1.9‰, 1σ), contributions of a magmatic ...
Au–Cu–Ag deposit, Chile. This is the first study to com-pare in situ sulfur isotope and trace element geochemistry in pyrite from a high-sulfidation deposit. Geology of the El Indio Au–Ag–Cu high‑sulfidation deposit The El Indio Au–Ag–Cu high-sulfidation deposit is located km north of Santiago in the high Andes near the Chil-