Hydrothermal mineral deposits are the primary source of many mineral commodities of
global importance. Since hydrothermal alteration minerals associated with the formation of …

Sodic-calcic alteration has affected numerous districts with Laramide porphyry systems
across Arizona and New Mexico. Previously undocumented Na-Ca alteration has been …

Eocene magmatism in the Great Basin is spatially and temporally associated with major gold
mineralization and with the early stages of the westward retreat of magmatism from its …

Structural diagenesis is the study of the interaction of mechanical and chemical processes in
sediments or sedimentary rocks (Laubach et al. 2010). Attesting deformation, natural …

All ore-forming systems have a requisite source of metals, a transporting agent, and a trap to
drive concentrated ore deposition. In hydrothermal ore deposits, these requirements include …

Near-surface advanced argillic hydrothermal alteration zones, also referred to as lithocaps,
are characterized by quartz, alunite, clays (pyrophyllite and kaolinite group minerals), and …

Texturally destructive phlogopite-rich alteration occurs as a narrow, curvilinear zone with a
width of< 0.5 to 3 m exposed discontinuously over∼ 1 km along strike in eastern exposures …