Search Results - "Dilles, John"

Evidence for magmatic anhydrite in porphyry copper intrusions by Hutchinson, Michael C, Dilles, John H

“…Although magmatic-hydrothermal ore deposits may contain as much as 1 billion tonnes (Gt) of sulfur as hydrothermal sulfides and sulfates, whether the…”
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A reevaluation of the timing and temperature of copper and molybdenum precipitation in porphyry deposits by Cernuschi, Federico, Dilles, John H, Osario, Jaime, Proffett, John M, Kouzmanov, Kalin

“…The timing and temperature at which copper-iron and molybdenum sulfide deposition occurs in porphyry deposits remain controversial. Petrologic estimates…”
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Zircon compositional evidence for sulfur-degassing from ore-forming arc magmas by Dilles, John H, Kent, Adam J. R, Wooden, Joseph L, Tosdal, Richard M, Koleszar, Alison, Lee, Robert G, Farmer, Lucian P

“…Porphyry Cu (±Mo ±Au) and epithermal Au-Ag deposits are major sources of mined metals and are commonly formed by magmatic-hydrothermal fluids derived from…”
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Magmatic evolution of granodiorite intrusions at the El Salvador porphyry copper deposit, Chile, based on trace element composition and U/Pb age of zircons by Lee, Robert G, Dilles, John H, Tosdal, Richard M, Wooden, Joseph L, Mazdab, Frank K

“…Uranium-lead ages and trace element compositions of zircon from a series of shallow porphyry intrusions document the temporal, chemical, and thermal magmatic…”
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Hydrothermal enrichment of lithium in intracaldera illite-bearing claystones by Benson, Thomas R., Coble, Matthew A., Dilles, John H.

“…Developing a sustainable supply chain for the global proliferation of lithium ion batteries in electric vehicles and grid storage necessitates the extraction…”
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Magma emplacement rates and porphyry copper deposits; thermal modeling of the Yerington Batholith, Nevada by Schöpa, Anne, Annen, Catherine, Dilles, John H, Sparks, R. Stephen J, Blundy, Jon D

“…Many porphyry copper deposits are associated with granitoid plutons. Porphyry copper deposit genesis is commonly attributed to degassing of pluton-forming…”
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Structural evolution, vein orientation, and paragenesis of the Botija porphyry Cu-Mo-(Au) deposit, Panama by Sepp, Michael D, Dilles, John H

“…Botija is one of seven Cu-Mo-Au porphyry deposits in the Cobre Panama district, which currently has a global resource of 4.2 Gt at a grade of 0.35 wt % Cu…”
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Chemical variations in hydrothermal white mica across the Highland Valley porphyry Cu-Mo district, British Columbia, Canada by Alva-Jimenez, Tatiana, Tosdal, Richard M, Dilles, John H, Dipple, Gregory, Kent, Adam J. R, Halley, Scott

“…Hydrothermal white mica in the Highland Valley district, British Columbia, is present in high-temperature alteration assemblages in early halo veins and in…”
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Fluid inclusion evidence for magmatic-hydrothermal fluid evolution in the porphyry copper-molybdenum deposit at Butte, Montana by Rusk, Brian G, Reed, Mark H, Dilles, John H

“…The porphyry Cu-Mo deposit in Butte, Montana, formed where magmatic hydrothermal fluids, introduced with injections of porphyrytic dikes, fractured and…”
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The stability and composition of sulfate melts in arc magmas by Hutchinson, Michael C., Brooker, Richard A., Dilles, John H., Blundy, Jon

“…The stability field and composition of immiscible sulfate melts in equilibrium with silicate magmas has been determined using experiments over a range of…”
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Crystal reaming during the assembly, maturation, and waning of an eleven-million-year crustal magma cycle: thermobarometry of the Aucanquilcha Volcanic Cluster by Walker, Barry A., Klemetti, Erik W., Grunder, Anita L., Dilles, John H., Tepley, Frank J., Giles, Denise

“…Phenocryst assemblages of lavas from the long-lived Aucanquilcha Volcanic Cluster (AVC) have been probed to assess pressure and temperature conditions of…”
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Structural geologic evolution of the Butte District, Montana by Houston, Robert A, Dilles, John H

“…The Butte district contains two porphyry Cu-Mo deposits and the younger zoned Main stage base metal lode deposits that formed in the period from 66 to 62 Ma,…”
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Evolution of calc-alkaline volcanism and associated hydrothermal gold deposits at Yanacocha, Peru by Longo, Anthony A, Dilles, John H, Grunder, Anita L, Duncan, Robert

“…Clusters of high-sulfidation epithermal deposits containing more than 50 Moz of gold are hosted by advanced argillic-altered Miocene volcanic rocks in the…”
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Pleistocene hydrothermal activity on Brokeoff Volcano and in the Maidu volcanic center, Lassen Peak area, northeast California; evolution of magmatic-hydrothermal systems on stratovolcanoes by John, David A, Lee, Robert G, Breit, George N, Dilles, John H, Calvert, Andrew T, Muffler, L. J. Patrick, Clynne, Michael A

“…Partially eroded stratovolcanoes worldwide, notably Mounts Rainier and Adams in the Cascades and several volcanoes in Japan, record episodic periods of…”
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Compositions of magmatic hydrothermal fluids determined by LA-ICP-MS of fluid inclusions from the porphyry copper–molybdenum deposit at Butte, MT by Rusk, Brian G., Reed, Mark H., Dilles, John H., Klemm, Leonhard M., Heinrich, Christoph A.

“…We analyzed 85 fluid inclusions from seven samples from the porphyry Cu–Mo deposit in Butte, MT, using laser ablation-inductively coupled plasma-mass…”
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Chemical vectoring in continental geothermal systems: Composition of altered rocks and illite as guides to magmatic degassing by Chambefort, Isabelle, Dilles, John H.

“…•Altered whole rock samples lack enrichment in chloride-transported metals.•There are minor anomalies of bisulfide-complexed close to the surface.•Few…”
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Fluid and Vein Evolution, Timing, and Temperature of Cu-Au-Mo Sulfide Deposition at the Encuentro Porphyry Cu-Au-Mo Deposit, Northern Chile by Osorio, Jaime, Dilles, John H., Collao, Santiago

“…Abstract The enormous economic potential of porphyry systems makes them the most explored and researched ore deposits in the last century. Despite all these…”
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Wall-rock alteration and hydrothermal flow paths about the Ann-Mason porphyry copper deposit, Nevada; a 6-km vertical reconstruction by Dilles, John H, Einaudi, Marco T

“…Surface exposures in the Singatse Range at the Ann-Mason deposit yield a nearly complete vertical cross section, from 1 to 6 km in paleodepth, through one of…”
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From birth to death: The role of upper-crustal thermal maturation and volcanism in porphyry ore formation revealed in the Yerington district by Castellanos-Melendez, Maria Paula, Dilles, John, Guillong, Marcel, Bachmann, Olivier, Chelle-Michou, Cyril

“…•Prolonged upper-crustal thermal maturation is needed for porphyry ore formation.•>1 Myr of precursor magmatism enabled upper-crustal magma reservoir…”
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Amphibole Geochemistry of the Yanacocha Volcanics, Peru: Evidence for Diverse Sources of Magmatic Volatiles Related to Gold Ores by Chambefort, Isabelle, Dilles, John H., Longo, Anthony A.

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