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National Geologic Map Database
Geologic Unit: Gateway
Map showing publication footprint
  • Usage in publication:
    • Gateway Formation†
  • Modifications:
    • [Abandoned]
  • AAPG geologic province:
    • Northern Rocky Mountain region
Publication:

Harrison, J.E., 1972, Precambrian Belt basin of northwestern United States; its geometry, sedimentation and copper occurrences: Geological Society of America Bulletin, v. 83, no. 5, p. 1215-1240.


Summary:

Figs. 3, 4, 5, 6. [†Gateway Formation of Missoula Group of Belt Supergroup (MT); †Gateway Formation of Missoula Group of Purcell Supergroup (Canada). Rocks of the †Gateway Formation (=†Kintla Argillite), recognized locally in "type area," northwestern Montana, and northward into Fernie area, British Columbia, Canada, are reallocated to Mount Shields Formation.]

Source: Publication.


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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