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Contents

   



(Top)
 


1 Lithology  





2 Distribution  





3 Relationship to other units  





4 References  














Tetcho Formation







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Coordinates: 60°0918N 121°1816W / 60.15500°N 121.30444°W / 60.15500; -121.30444 (Tetcho Formation)
 

From Wikipedia, the free encyclopedia
 


Tetcho Formation
Stratigraphic range: Famennian

O

S

D

C

P

T

J

K

Pg

N

TypeGeological formation
UnderliesKotcho Formation
OverliesTrout River Formation
Fort Simpson Formation
Thicknessup to 75 metres (250 ft)[1]
Lithology
PrimaryLimestone
OtherShale
Location
Coordinates60°09′18N 121°18′16W / 60.15500°N 121.30444°W / 60.15500; -121.30444 (Tetcho Formation)
Region British Columbia
 Northwest Territories
Country Canada
Type section
Named forTetcho Lake
Named byH.R. Belyea, D.J. McLaren, 1962

The Tetcho Formation is a stratigraphical unit of Famennian age in the Western Canadian Sedimentary Basin.

It takes the name from Tetcho Lake, and was first described in the Imperial Island River No. 1 well (located south of Trout Lake by H.R. Belyea and D.J. McLaren in 1962.[2]

Lithology

[edit]

The Tetcho Formation is composed of fine grained limestone with shale partings, silty at the base. [1]

Distribution

[edit]

The Tetcho Formation reaches a maximum thickness of 75 metres (250 ft).[1] it occurs in the sub-surface in north-eastern British Columbia and southern Northwest Territories.

Relationship to other units

[edit]

The Tetcho Formation is conformably overlain by the Kotcho Formation and conformably overlays the Trout River Formation and Fort Simpson Formation.[1]

It is equivalent to the lower Wabamun GroupinAlberta and to parts of the Besa River Formation in the Liard area of British Columbia.

References

[edit]
  1. ^ a b c d Lexicon of Canadian Geologic Units. "Tetcho Formation". Retrieved 2009-03-01.
  • ^ Belyea, H.R. and McLaren, D.J., 1962. Upper Devonian formations, southern part of Northwest Territories, northeastern British Columbia and northwestern Alberta; Geological Survey of Canada, Paper 61-29, 74 p.

  • Retrieved from "https://en.wikipedia.org/w/index.php?title=Tetcho_Formation&oldid=1170218897"

    Categories: 
    Geologic formations of British Columbia
    Geologic formations of the Northwest Territories
    Devonian British Columbia
    Devonian Northwest Territories
    Limestone formations of Canada
    Shale formations
    Hidden categories: 
    Pages using gadget WikiMiniAtlas
    Coordinates on Wikidata
     



    This page was last edited on 13 August 2023, at 20:06 (UTC).

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