sulfur deposits chile

Solved? Mystery of Atacama Desert's 'White Gold'

The driest, highest desert on Earth, Chile's Atacama Desert, also holds the world's richest nitrate and iodine deposits. As such, a …

ZIRCON COMPOSITIONAL EVIDENCE FOR SULFUR-DEGASSING …

The igneous rock assemblages associated with porphyry mineral deposits are common in modern convergent margin settings, but while many have produced acidic magmatic fluids, very few, past or present, have produced sufficient metal, chlorine, and sulfur enrichments necessary to engender an ore deposit. The reasons for this remain …

Formation of giant iron oxide-copper-gold deposits by

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 ...

Contrasting magma chemistry in the Candelaria IOCG district …

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 and chlorine budgets control the ore fertility of arc …

Sulfur and Cl availability during shallow degassing enable efficient ore metal transport and subsequent ore precipitation, which can mitigate the negative effect of the moderate ore metal ...

Magmatic anhydrite in plutonic rocks at the El teniente Cu-Mo deposit …

Request PDF | Magmatic anhydrite in plutonic rocks at the El teniente Cu-Mo deposit, Chile and the role of sulfur- and Copper-rich magmas in its formation | Anhydrite occurs along with biotite ...

Ore Geology Reviews

posit and hand specimen scale, and suggests a polygenic sulfur source for these deposits, where bacteriogenic sulﬁde dominates. 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

Sulfur isotopes in the porphyry copper deposit at El Salvador, Chile …

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.

Extremely negative and inhomogeneous sulfur isotope …

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 …

Contrasting Tectonic Settings and Sulfur Contents of

For example, ore-forming magmas in the giant Carmen de Andacollo Cu (-Au) deposits in Chile contained approximately 88 to 160 ppm dissolved sulfur within the magma chamber (Richards et al., 2017 ...

Frontiers | Physical and chemical characteristics of active sulfur

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 …

MAGMATIC ANHYDRITE IN PLUTONIC ROCKS AT THE EL …

Anhydrite occurs along with biotite, feldspars, quartz, Fe-oxides, and sulfides in fine-grained igneous rocks that form the small "Porphyry A".

A SULFUR, CARBON, OXYGEN, AND STRONTIUM ISOTOPE …

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 ... Strata-bound, manto-type copper deposits of Chile are a major source of copper, and some deposits (e.g., Mantos …

Sulfur radical species form gold deposits on Earth | PNAS

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 ).

The sulfur isotope evolution of magmatic-hydrothermal fluids…

1. Introduction. Most magmatic-hydrothermal systems on Earth contain fluids with significant concentrations of sulfur. In these environments S exists in a variety of oxidation states (S 2− to S 6+) and phases (melt, minerals, fluids and gases), and participates in many chemical reactions.As a result, S often shows large isotopic …

Frontiers | Formation of Large Native Sulfur Deposits Does …

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 …

Did You Know Volcanoes Can Erupt Molten Sulfur?

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.

Contrasting Tectonic Settings and Sulfur Contents of …

In the Mesozoic Coastal Cordillera of northern Chile, both porphyry and IOCG deposits occur in close spatial and temporal proximity, offering the chance to examine what …

Geology of the Altamira and Las Luces deposits, Coastal …

Copper transport by high temperature, sulfur-rich magmatic vapor

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 Data Sheet

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

(PDF) Giant versus small porphyry copper deposits of …

Cenozoic magmatic activity in northern Chile led to the formation of two contrasting porphyry copper belts: (1) a Paleocene-Early Eocene belt comprising small porphyry copper deposits (e.g., Lomas ...

Sulfur isotope and trace element systematics of …

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-

Oxygen and sulfur isotopic compositions of quartz, anhydrite …

Oxygen and sulfur isotopic compositions of quartz, anhydrite and sulfide minerals from the El Teniente and Rio Blanco porphyry copper deposits, Chile.

The porphyry copper deposit at El Salvador, Chile

The formation of the porphyry copper deposit at El Salvador culminated volcanic activity in the Indio Muerto district. ... The porphyry copper deposit at El Salvador, Chile B. Gustafson; B. Gustafson Search for other works by this author on: ... and probably more sulfur was fixed as sulfate in anhydrite than in sulfides.Outward ...

Sulfur isotope and trace element systematics of zoned pyrite …

We present a comparative study between early, massive pyrite preceding (Cu-Ag) sulfosalt mineralization in high-temperature feeder zones (`early pyrite') and late pyrite that formed during silicic alteration associated with Au deposition (`late pyrite') at the El Indio high-sulfidation Au-Ag-Cu deposit, Chile. We use coupled in situ sulfur isotope and trace …