Pg. 261, 262 (fig. 4), 263, 285 (App. 1). Artesia Lake Volcanics. [Authors indicate this is a formal proposal, thus to lessen confusion, the name is capitalized here.] Extensively altered flows, breccias, and sill-like intrusive bodies of andesite and/or dacite. Thickness 500 to about 1,500 m. Underlies Fulstone Spring Volcanics and overlies limestone member of Ludwig Mine Formation or Gardnerville Formation. Previously called andesite of Artesia Lake by Proffett and Dilles (1984, Nevada Bur. Mines Geol. Map, no. 77) and volcanics of Artesia Lake by Dilles and Wright (1988, GSA Bull., v. 100, no. 5, fig. 1) and Proffett and Dilles (1991, Geol. Soc. Nevada Field Trip Gdbk. Comp., v. 2, p. 1031-1036). Rocks were included in Artesia and Churchill Canyon sequences by Hudson and Oriel (1979, Nevada Bur. Mines Geol. Map, no. 64). Age is considered Middle Jurassic (probably Bajocian) based on U-Pb zircon ages of 166.5 to 169.4 Ma and Early Jurassic fossils recovered from the underlying Gardnerville.
Type section: exposures 1,000 m west of Standard Slag Mine [formerly Minnesota Mine], or 400 m southeast of Fulstone Number 3 Spring, in sec. 24, T. 14 N., R. 23 E., and the unsurveyed section to its east, Lincoln Flat 7.5-min quadrangle [1993 ed.], Yerington region, northern Buckskin Range, Douglas Co., west-central NV. Named from Artesia Lake (and playa) 13 km S. 10 deg. W. of the Standard Slag Mine, [Artesia Lake and Pine Nut Valley 7.5-min quadrangles (1986 prov. ed.), Lyon Co., west-central NV].

Source: Publication.