Geologic Unit: Galeros

Usage:

Galeros Formation of Chuar Group of Grand Canyon Supergroup (AZ*)

Subunits:

(alphabetical) --all in AZ*: Carbon Canyon Member, Duppa Member, Jupiter Member, Tanner Member.

Geologic age:

Neoproterozoic*

Type section, locality, area and/or origin of name:

[Type locality not stated by authors (Ford and Breed, 1973). Formation exposed south of Galeros promontory (not an official name of U.S. Board on Geographic Names), in areas around Carbon Butte and Chuar Canyon [Chuar Valley], Cape Solitude 7.5-min quadrangle, eastern Grand Canyon, Grand Canyon National Park, Coconino Co., northern AZ.]
Named from Galeros promontory. [Unofficially named by Ford and Breed, 1973; see their geol. map (fig. 1). Located south of Sixty Mile Canyon [Sixtymile Canyon], between Galeros and Chuar Buttes, Cape Solitude 7.5-min quadrangle, eastern Grand Canyon, Grand Canyon National Park, Coconino Co., northern AZ.]

AAPG geologic province:

Plateau sedimentary province*
Southern Rocky Mountain region*