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Map showing publication footprint
  • Usage in publication:
    • Deer Trail argillite
  • Modifications:
    • Original reference
  • Dominant lithology:
    • Argillite
    • Schist
    • Phyllite
  • AAPG geologic province:
    • Northern Cascade Range-Okanagan province
Publication:

Weaver, C.E., 1920, The mineral resources of Stevens County [Washington]: Washington Geological Survey Bulletin, no. 20, 350 p., (incl. geologic map, scale 1:125,000)


Summary:

Pg. 59, map. Deer Trail argillite. Argillites, calcareous argillites, phyllites, quartz mica schists, narrow bands of limestone, and small discontinuous bands of quartzite; argillites and quartz-mica schist are most abundant. Thickness 3,000+/- feet. Includes Stensgar dolomite member. Underlies Addy quartzite. Age is Paleozoic.
[Type locality not stated, but Deer Trail Mine is in this formation.] Recognized in Stevens Co., northeastern WA.

Source: US geologic names lexicon (USGS Bull. 896, p. 589).


Map showing publication footprint
  • Usage in publication:
    • Deer Trail group*
  • Modifications:
    • Revised
  • AAPG geologic province:
    • Northern Cascade Range-Okanagan province
Publication:

Bennett, W.A.G., 1941, Preliminary report on magnesite deposits of Stevens County Washington: Washington Division of Mines and Geology Report of Investigations, no. 5, 25 p., (incl. geologic map, scale 1:62,500)


Summary:

Pg. 7-8. Referred to as Deer Trail group. Includes Stensgar dolomite. [Age is considered Precambrian (Belt series).]

Source: US geologic names lexicon (USGS Bull. 1200, p. 1072-1073).


Map showing publication footprint
  • Usage in publication:
    • Deer Trail group*
  • Modifications:
    • Revised
  • AAPG geologic province:
    • Northern Cascade Range-Okanagan province
Publication:

Campbell, Ian, and Loofbourow, J.S., Jr., 1946, Geology of the magnesite belt of Stevens County, Washington [abs.]: Geological Society of America Bulletin, v. 57, no. 12, pt. 2, p. 1250.


Summary:

Deer Trail group. Described as a group consisting of a series of metasediments, probably of Beltian age, composed dominantly of fine-grained clastics with minor amounts of quartzite and dolomite. Thickness 5,000 feet. Includes (ascending) Togo formation, Edna dolomite, McHale slate (all new), Stensgar dolomite, and Buffalo Hump formation (new). Unconformably underlies Huckleberry group (new). [Age is considered Precambrian (Belt series).]

Source: US geologic names lexicon (USGS Bull. 1200, p. 1072-1073).


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

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