...Fig. 11. (A). Geologic map of the Deerhorn deposit. (B). Cross section across the Deerhorn deposit. (C). Lithologic photos correspond to (A) volcanic sandstone, (B) plagioclase phyric andesite, (C) monzonite-D, and (D) monzonite-A. ...

.... Glacial striations shown on the map were measured as part of this survey. Mineral occurrences are from MINFILE (2015) . The Deerhorn, Megabuck, Takom, and Spellbound zones are Cu-Au-Mo alkalic porphyry-type deposits occurring as quartz stockwork within the contact zones of satellite intrusion...

...-alkalic intrusions (del Real et al . 2017). The only deposits that contain TSM are DH and TK, and samples from both were examined. At Deerhorn, TSM are observed in syn- to post-ore Py-Qz-Chl±Hem±TSM veins with distinctive white halos dominated by illite (del Real et al . 2017). The TSM are found...

... the Deerhorn deposit (157.6 m depth). In the companion study to this ( Beckett-Brown et al . 2023 ), the textural and major/minor element characteristics of TSM from the seven porphyry systems discussed above were described and evaluated. Tourmaline should be considered a significant phase in porphyry...

...), the resulting caldera was partially filled by a large lake, within which volcaniclastic, chemical, and biogenic sediments were deposited. Contrary to previous interpretations, Long Valley Lake was initially evaporative and did not become relatively fresh and deep until later in its history. This observation...

...James M. Logan; Mitchell G. Mihalynuk Abstract Paired belts of alkalic and calc-alkalic porphyry deposits are genetically linked to early Mesozoic volcanic arcs preserved as the Quesnel and Stikine terranes in western Canada. These parallel arc terranes extend for 2,000 km along the axis...

... Quantum Minerals Ltd., Callao 3461, Las Condes, Santiago, Chile ABSTRACT INTRODUCTION Exploration for porphyry copper Lithocaps are large rock volumes deposits beneath barren or poorly mineralized, advanced argillic originally 1 to 2 km thick and lithocaps is becoming common- place; however, there have...

... Southeast zone), pre-accretion al- kalic type (New Afton, Copper Mountain, and Woodjam Deerhorn and Megabuck zones), and post-accretion calc-alkalic types (Huckleberry and Maggie). The geology and mineralization of these diverse deposit types will be examined; their similarities and differences, ore...

..., and Woodjam Deerhorn and Megabuck zones), and post-accretion calc-alkalic types (Huckleberry and Maggie). The geology and mineralization of these diverse deposit types will be examined; their similarities and differences, ore reserves, mining methods, metallurgy, economics, and environmental considerations...