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词条 Mannville Group
释义

  1. Lithology

     Hydrocarbon production 

  2. Distribution

  3. Relationship to other units

     Subunits  Central and southern Alberta  Athabasca region  Lloydminster region  Southern Saskatchewan 

  4. References

{{Infobox Rockunit
| name = Mannville Group
| image =
| caption =
| type = Geological formation
| age = Early Cretaceous {{Fossil range|130|99| }}
| period = Early Cretaceous
| prilithology = Sandstone
| otherlithology = Shale
| namedfor = Mannville, Alberta
| namedby = Nauss, 1945
| region = {{flag|Alberta}}, {{flag|Saskatchewan}}
| country = {{flag|Canada}}
| coordinates = {{coord|53.3087|N|111.1541|W|region:CA-AB|name=Northwest Mannville 1 well}}
| unitof =
| subunits = Glauconitic Sandstone, Ostracod Beds, Ellerslie Member, Grand Rapids Formation, Clearwater Formation, McMurray Formation, Waseca Sand, Sparky Sand, General Petroleum Sand, Rex Sand, Lloydminster Sand, Cummings Member, Dina Member, Pense Formation, Cantuar Formation, Success Formation
| underlies = Colorado Group
| overlies = Rundle Group, Banff Formation, Wabamun Formation
| thickness = up to {{convert|145|m|ft|-1}}[1]
| extent =
| area =
| map =
| map_caption =
}}

The Mannville Group is a stratigraphical unit of Cretaceous age in the Western Canadian Sedimentary Basin.

It takes the name from the town of Mannville, Alberta, and was first described in the Northwest Mannville 1 well by A.W. Nauss in 1945.[2]

Lithology

The Mannville Group consists of interbedded continental sand and shale in the base, followed by a calcareous sandstone member, marine shale, glauconitic sandstone and salt and pepper sandstone. An additional non-marine sequence is present in north-eastern Alberta.

Hydrocarbon production

Bitumen is produced from the McMurray Formation at the Athabasca Oil Sands. Heavy Oil is produced from the Wabiskaw Member of the Clearwater Formation in the Wabasca oil field, and from multiple formations in the Lloydminster and Provost areas in eastern Alberta and western Saskatchewan. Natural gas is extracted from the Ostracod and Glauconite beds in southern Alberta, and light oil is extracted from the Ellerslie Member in central and southern Alberta. Multiple oil fields[3] and gas fields[4] tap into the Manville Group.

Total gas reserves amount to 316,799 x 106m³ in the Lower Mannville and 644,774 x 106m³ in the Upper Mannville.[5] Recoverable oil reserves amount to 105.64 x 106m³ in the Lower Mannville and 199.20 x 106m³ in the Upper Mannville.[6]

Distribution

The Mannville Group reaches a thickness of {{convert|145|ft|m|-1}} in its type locality. It occurs in the sub-surface in central Alberta, extending east-west from Edmonton to Lloydminster and north-south from the Deep Basin to the United States border. It is present in the sub-surface in west-central and southern Saskatchewan.

Relationship to other units

The Mannville Group is discomformably overlain by the Joli Fou Formation shale of the Colorado Group. It rests unconformably on the older Paleozoic carbonates.

It is correlated with the lower Blairmore Group in the Canadian Rockies foothills and to the Bullhead Group and the Spirit River Formation of the Fort St. John Group in north-western Alberta. It is also equivalent to the Cantuar Formation in Saskatchewan and the Swan River Formation in Manitoba.

Subunits

The Mannville Group includes the following sub-units:

Central and southern Alberta

Subdivision Sub-unit Age Lithology Max
Thickness 		Reference
UpperUpper Mannvillemarine shale and sandstone
Glauconitic Sandstone Early Cretaceous very fine to medium grained quartz sandstone with siderite and glauconite 35|m|ft|-1|abbr=on}}[7]
Lower Mannville
Ostracod Beds Early Cretaceous Unit A: shale and fossiliferous limestone
Unit B: argillaceous limestone with ostracod fossils
Unit C: dark shale with siltstone and sandstone interbed
Unit D: fine to medium grained lithic calcareous sandstone with kaolinite and chert 		40|m|ft|-1|abbr=on}}[8]
Ellerslie Member Early Cretaceous Upper: fine grained sand with sandy shale and shaley sand lenses
Lower: medium grained quartz sand, siltstone, coal 		40|m|ft|-1|abbr=on}}
{{convert|30|m|ft|-1|abbr=on}}		[9]
Detrital Beds Early Cretaceous Chert pebbles, lithic sandstone, shale, siltstone 70|m|ft|-1|abbr=on}}[10]
  • In southern Alberta, the Ellerslie Member is replaced by the Sunburst Member, Taber Sandstone, and Cutbank Sandstone.

Athabasca region

Sub-unit Age Lithology Max
Thickness 		Reference
Grand Rapids Formation Albian bitumenous fine to medium sand (A, B and C sands, separated by silt and shale) 125|m|ft|-1|abbr=on}}[11]
Clearwater Formation Albian black and green shales and sand 85|m|ft|-1|abbr=on}}[12]
Wabiskaw Member Albian glauconitic sands with black fissile shale 35|m|ft|-1|abbr=on}}[13]
McMurray Formation late Barremian to Aptian fine grained bitumenous sands 60|m|ft|-1|abbr=on}}[14]

Lloydminster region

Sub-unit Age Lithology Max
Thickness 		Reference
Colony Sand Early Cretaceous friable glauconitic and argillaceous sandstone 15|m|ft|-1|abbr=on}}[15]
McLaren Member Early Cretaceous very fine grained sandstone and shale 18|m|ft|-1|abbr=on}}[16]
Waseca Sand Early Cretaceous sand with silt and shale 25|m|ft|-1|abbr=on}}[17]
Sparky Sand Early Cretaceous sand and shale 12|m|ft|-1|abbr=on}}[18]
General Petroleum Sand Early Cretaceous very fine to fine grained quartzose sand 15|m|ft|-1|abbr=on}}[19]
Rex Sand Early Cretaceous very fine to fine grained quartzose sand with silt and shale 14|m|ft|-1|abbr=on}}[20]
Lloydminster Sand Early Cretaceous unconsolidated quartz sand with silt 30|m|ft|-1|abbr=on}}[21]
Cummings Member Early Cretaceous shale with beds of salt-and-pepper sandstone 27|m|ft|-1|abbr=on}}[22]
Dina Member Early Cretaceous quartz sandstone with siltstone and shale 60|m|ft|-1|abbr=on}}[23]

Southern Saskatchewan

Sub-unit Age Lithology Max
Thickness 		Reference
Pense Formation Albian fine grained sandstone, clay, shaly silt 36|m|ft|-1|abbr=on}}[24]
Cantuar Formation Aptian to Albian mudstone and sandstone 120|m|ft|-1|abbr=on}}[25]
Success Formation Jurassic to Lower Cretaceous quartzose sandstone and siltstone 75|m|ft|-1|abbr=on}}[26]

References

1. ^{{Cite web|url=http://cgkn1.cgkn.net/weblex/weblex_litho_detail_e.pl?00053:009141|title=Mannville Group|author=Lexicon of Canadian Geologic Units |accessdate=2009-03-01}}
2. ^Nauss, Arthur William, 1945. Cretaceous stratigraphy of Vermilion area, Alberta, Canada; American Association of Petroleum Geologists (AAPG), AAPG Bulletin, vol. 29, no. 11 (November), pp. 1605-1629.
3. ^{{Cite web|url=http://www.ags.gov.ab.ca/graphics/atlas/fg19_23a.jpg|title=Oil Production from the Lower Mannville|author=Alberta Geological Survey|authorlink=Alberta Geological Survey|accessdate=2009-03-02}}
4. ^{{Cite web|url=http://www.ags.gov.ab.ca/graphics/atlas/fg19_23b.jpg|title=Gas Production from the Lower Mannville|author=Alberta Geological Survey|authorlink=Alberta Geological Survey|accessdate=2009-03-02}}
5. ^{{Cite web|url=http://www.ags.gov.ab.ca/graphics/atlas/fg19_25b.jpg|title=Gas Production from the Upper Mannville|author=Alberta Geological Survey|authorlink=Alberta Geological Survey|accessdate=2009-03-02}}
6. ^{{Cite web|url=http://www.ags.gov.ab.ca/graphics/atlas/fg19_25a.jpg|title=Oil Production from the Upper Mannville|author=Alberta Geological Survey|authorlink=Alberta Geological Survey|accessdate=2009-03-02}}
7. ^{{Cite web|url=http://cgkn1.cgkn.net/weblex/weblex_litho_detail_e.pl?00053:005607|title=Glauconitic|author=Lexicon of Canadian Geologic Units |accessdate=2009-03-01}}
8. ^{{Cite web|url=http://cgkn1.cgkn.net/weblex/weblex_litho_detail_e.pl?00053:011349|title=Ostracod|author=Lexicon of Canadian Geologic Units |accessdate=2009-03-01}}
9. ^{{Cite web|url=http://cgkn1.cgkn.net/weblex/weblex_litho_detail_e.pl?00053:004577 |archive-url=https://archive.is/20120712204051/http://cgkn1.cgkn.net/weblex/weblex_litho_detail_e.pl?00053:004577 |dead-url=yes |archive-date=2012-07-12 |title=Ellerslie |author=Lexicon of Canadian Geologic Units |accessdate=2009-03-01 }}
10. ^{{Cite web|url=http://cgkn1.cgkn.net/weblex/weblex_litho_detail_e.pl?00053:003961|title=Detrital|author=Lexicon of Canadian Geologic Units |accessdate=2009-03-01}}
11. ^{{Cite web|url=http://cgkn1.cgkn.net/weblex/weblex_litho_detail_e.pl?00053:005808|title=Grand Rapids|author=Lexicon of Canadian Geologic Units |accessdate=2009-03-01}}
12. ^{{Cite web|url=http://cgkn1.cgkn.net/weblex/weblex_litho_detail_e.pl?00053:003027|title=Clearwater|author=Lexicon of Canadian Geologic Units |accessdate=2009-03-01}}
13. ^{{Cite web|url=http://cgkn1.cgkn.net/weblex/weblex_litho_detail_e.pl?00053:015927|title=Wabiskaw|author=Lexicon of Canadian Geologic Units |accessdate=2009-03-01}}
14. ^{{Cite web|url=http://cgkn1.cgkn.net/weblex/weblex_litho_detail_e.pl?00053:009513|title=McMurray|author=Lexicon of Canadian Geologic Units |accessdate=2009-03-01}}
15. ^{{Cite web|url=http://cgkn1.cgkn.net/weblex/weblex_litho_detail_e.pl?00053:003232|title=Colony Sand|author=Lexicon of Canadian Geologic Units |accessdate=2010-01-09}}
16. ^{{Cite web|url=http://cgkn1.cgkn.net/weblex/weblex_litho_detail_e.pl?00053:009486|title=McLaren Member|author=Lexicon of Canadian Geologic Units |accessdate=2010-01-03}}
17. ^{{Cite web|url=http://cgkn1.cgkn.net/weblex/weblex_litho_detail_e.pl?00053:016087|title=Waseca|author=Lexicon of Canadian Geologic Units |accessdate=2009-03-01}}
18. ^{{Cite web|url=http://cgkn1.cgkn.net/weblex/weblex_litho_detail_e.pl?00053:014207|title=Sparky|author=Lexicon of Canadian Geologic Units |accessdate=2009-03-01}}
19. ^{{Cite web|url=http://cgkn1.cgkn.net/weblex/weblex_litho_detail_e.pl?00053:005504|title=General Petroleum|author=Lexicon of Canadian Geologic Units |accessdate=2009-03-01}}
20. ^{{Cite web|url=http://cgkn1.cgkn.net/weblex/weblex_litho_detail_e.pl?00053:012711|title=Rex|author=Lexicon of Canadian Geologic Units |accessdate=2009-03-01}}
21. ^{{Cite web|url=http://cgkn1.cgkn.net/weblex/weblex_litho_detail_e.pl?00053:008608|title=Lloydminster|author=Lexicon of Canadian Geologic Units |accessdate=2009-03-01}}
22. ^{{Cite web|url=http://cgkn1.cgkn.net/weblex/weblex_litho_detail_e.pl?00053:003638|title=Cummings|author=Lexicon of Canadian Geologic Units |accessdate=2009-03-01}}
23. ^{{Cite web|url=http://cgkn1.cgkn.net/weblex/weblex_litho_detail_e.pl?00053:004011|title=Dina|author=Lexicon of Canadian Geologic Units |accessdate=2009-03-01}}
24. ^{{Cite web|url=http://cgkn1.cgkn.net/weblex/weblex_litho_detail_e.pl?00053:011695|title=Pense Formation|author=Lexicon of Canadian Geologic Units |accessdate=2010-01-03}}
25. ^{{Cite web|url=http://cgkn1.cgkn.net/weblex/weblex_litho_detail_e.pl?00053:002280|title=Cantuar Formation|author=Lexicon of Canadian Geologic Units |accessdate=2010-01-03}}
26. ^{{Cite web|url=http://cgkn1.cgkn.net/weblex/weblex_litho_detail_e.pl?00053:014687|title=Success Formation|author=Lexicon of Canadian Geologic Units |accessdate=2010-01-03}}
{{Western Canadian Sedimentary Basin|Northeast_Plains=yes|Central_Plains=yes|South AB=yes|Saskatchewan=yes}}

2 : Lower Cretaceous Series of North America|Stratigraphy of Alberta
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