Auteur Timothy S. Hayes
Documents disponibles écrits par cet auteur (3)
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Patrick Nadoll, Auteur ; Jeffrey L. Mauk, Auteur ; Timothy S. Hayes, Auteur |Magnetite (Fe3O4) is a common and widespread accessory mineral in many host rocks and mineral deposits. We used electron microprobe analysis (EMPA), laser ablation-inductively coupled plasma-mass spectrometry (LA-ICP-MS) analysis, and oxygen iso[...]
Article : texte imprimé
John N. Aleinikoff, Auteur ; Timothy S. Hayes, Auteur ; Karl V. Evans, Auteur |Xenotime occurs as epitaxial overgrowths on detrital zircons in the Mesoproterozoic Revett Formation (Belt Supergroup) at the Spar Lake red bed-associated Cu-Ag deposit, western Montana. The deposit formed during diagenesis of Revett strata, whe[...]
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Timothy S. Hayes, Auteur ; Gary P. Landis, Auteur ; Joseph F. Whelan, Auteur |Ore formation at the Spar Lake red bed-associated strata-bound Cu deposit took place across a mixing and reaction zone between a hot oxidized metals-transporting brine and a reservoir of “sour” (H2S-bearing) natural gas trapped in the host sands[...]
