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Map showing publication footprint
  • Usage in publication:
    • Phillips Lake Granodiorite
  • Modifications:
    • First used
  • AAPG geologic province:
    • Okanogan province
Publication:

Miller, F.K., 1974, Preliminary geologic map of the Newport Number 3 quadrangle, Pend Oreille, Stevens, and Spokane Counties, Washington: Washington Division of Geology and Earth Resources Geologic Map, GM-9, 1 sheet, 7 p., scale 1:62,500


Summary:

First use of the Phillips Lake Granodiorite. Age is Late Cretaceous.

Source: GNU records (USGS DDS-6; Menlo GNULEX).


Map showing publication footprint
  • Usage in publication:
    • Phillips Lake Granodiorite*
  • Modifications:
    • Named
  • Dominant lithology:
    • Granodiorite
  • AAPG geologic province:
    • Okanogan province
Publication:

Miller, F.K., and Clark, L.D., 1975, Geology of the Chewelah-Loon Lake area, Stevens and Spokane Counties, Washington, with a section on potassium-argon ages of the plutonic rocks by Joan C. Engels: U.S. Geological Survey Professional Paper, 806, 74 p., (incl. geologic map, scale 1:62,500)


Summary:

Unit is named the Phillips Lake Granodiorite. Consists of granodiorite. Unconformably overlies the Wallace Formation, Ravelli Group, and Prichard Formation; unconformably underlies Quaternary glacial, alluvial, and talus deposits. Age is Cretaceous based on radiometric (K-Ar) dating. (B1520)

Source: GNU records (USGS DDS-6; Menlo GNULEX).


For more information, please contact Nancy Stamm, Geologic Names Committee Secretary.

Asterisk (*) indicates published by U.S. Geological Survey authors.

"No current usage" (†) implies that a name has been abandoned or has fallen into disuse. Former usage and, if known, replacement name given in parentheses ( ).

Slash (/) indicates name conflicts with nomenclatural guidelines (CSN, 1933; ACSN, 1961, 1970; NACSN, 1983, 2005, 2021). May be explained within brackets ([ ]).

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