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Mackenzie Mountains Supergroup

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Journal Article
Published: 01 March 2023
Journal of Paleontology (2023) 97 (2): 499–515.
... The early Neoproterozoic Mackenzie Mountains Supergroup in northwest Canada hosts exceptionally preserved macrofossils interpreted to represent multicellular eukaryotes, including probable macroalgae (Hofmann and Aitken, 1979 ; Hofmann, 1985 ; Maloney et al., 2021 , 2022 ). During the Neoproterozoic Era...
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First thumbnail for: Systematic paleontology of macroalgal fossils from...
Second thumbnail for: Systematic paleontology of macroalgal fossils from...
Third thumbnail for: Systematic paleontology of macroalgal fossils from...
Journal Article
Published: 16 December 2008
Canadian Journal of Earth Sciences (2008) 45 (10): 1159–1184.
...Elizabeth C. Turner; Darrel G.F. Long Abstract The early Neoproterozoic Mackenzie Mountains supergroup (MMSG; ∼4 km thick, <1083 Ma, >779 Ma) was deposited in a large but poorly understood basin. Analysis of new and existing stratigraphic data reveals unexpected, abrupt changes in thickness...
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First thumbnail for: Basin architecture and syndepositional fault activ...
Second thumbnail for: Basin architecture and syndepositional fault activ...
Journal Article
Published: 01 June 1996
Canadian Journal of Earth Sciences (1996) 33 (6): 848–862.
...R. W. Dalrymple; G. M. Narbonne Abstract The Sheepbed Formation (Ediacaran) is a 1 km thick, siliciclastic unit that overlies glacial deposits of the Ice Brook Formation and is overlain by carbonates of the Gametrail Formation. Observations in the Mackenzie Mountains indicate that the Sheepbed...
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(A) Location of the study area in the Mackenzie Mountains Supergroup in western Northwest Territories, Canada. (B) Exposure areas of the Mackenzie Mountains Supergroup and the time-equivalent Shaler Supergroup in Northwest Territories. Dotted line indicates territorial border. (C) Location of three measured sections of the Ten Stone Formation in the Mackenzie Mountains (open circle indicates the formation’s southeasternmost known exposure). (D) Stratigraphic position of the gypsite-dominated, sulfate-first Ten Stone Formation in Neoproterozoic stratigraphy of the Mackenzie Mountains; CM indicates carbonate marker. (E) Stratigraphy of the Shaler Supergroup (northern mainland of Northwest Territories). (F) Field photo of halite casts in the Dodo Creek Formation, a halite-first succession. Annotations indicate the stratigraphic levels of a halite-first evaporitic unit (Dodo Creek Formation) and overlying sulfate-first evaporite successions (Ten Stone, Minto Inlet, non-marine–marine[?] Redstone River, and Kilian Formations). The marine Kilian Formation shows clear evidence of evaporative drawdown to halite saturation after deposition of a significant thickness of gypsite. Radiometric dates are from Jefferson and Parrish (1989), Heaman et al. (1992), and Leslie (2009).
Published: 01 January 2016
Figure 2. (A) Location of the study area in the Mackenzie Mountains Supergroup in western Northwest Territories, Canada. (B) Exposure areas of the Mackenzie Mountains Supergroup and the time-equivalent Shaler Supergroup in Northwest Territories. Dotted line indicates territorial border. (C
Image
Detrital zircon populations from Mackenzie Mountains Supergroup (MMS) as potential source strata. (A) Thermal ionization mass spectrometry (TIMS) data compiled from Rainbird et al. (1996b, 1997). (B–C) Probability distributions for Little Dal and Katherine Groups (Fig. 3), part of the Sequence B succession (Fig. 5); inductively coupled plasma–mass spectrometry (ICP-MS) data are summarized from Leslie (2009).
Published: 01 March 2014
Figure 8. Detrital zircon populations from Mackenzie Mountains Supergroup (MMS) as potential source strata. (A) Thermal ionization mass spectrometry (TIMS) data compiled from Rainbird et al. (1996b , 1997) . (B–C) Probability distributions for Little Dal and Katherine Groups ( Fig. 3 ), part
Journal Article
Published: 26 August 2005
Canadian Journal of Earth Sciences (2005) 42 (6): 1045–1071.
... and Middle Proterozoic time was dominated by a series of extensionalbasin-forming events punctuated by orogenesis, magmatism, and hydrothermal activity. Basinal deposits include the Wernecke Supergroup (>1.71 Ga), Pinguicula Group (∼1.38 Ga), and Mackenzie Mountains Supergroup (1.00 – 0.78 Ga). Igneous...
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First thumbnail for: Early and Middle Proterozoic evolution of Yukon, C...
Second thumbnail for: Early and Middle Proterozoic evolution of Yukon, C...
Third thumbnail for: Early and Middle Proterozoic evolution of Yukon, C...
Journal Article
Published: 01 September 1989
Canadian Journal of Earth Sciences (1989) 26 (9): 1784–1801.
...C. W. Jefferson; R. R. Parrish Abstract Stratigraphic evidence suggests sporadic rifting began during deposition of the mainly platformal Mackenzie Mountains Supergroup: minor magnetite iron-formation in shale basins, lead–zinc in karsted and brecciated carbonates, red-bed and evaporite wedges...
Journal Article
Journal: GSA Bulletin
Published: 01 August 1982
GSA Bulletin (1982) 93 (8): 681–699.
... Dal Group of the Mackenzie Mountains Supergroup (northwest Canada), and with sedimentary rocks of the Uinta Mountain Group (Utah and Colorado). An apparent correlation also exists with some poles reported from crystalline rocks of the Grenville Province of eastern North America, and this correlation...
Journal Article
Published: 01 June 1984
Bulletin of Canadian Petroleum Geology (1984) 32 (2): 139–146.
... Proterozoic ‘Mackenzie Mountains supergroup’ east of Mackenzie River. In a broader view, the Fort Norman structure appears to belong to a family of northeast-trending, Precambrian, mainly northwest-side-down faults. These faults collectively limit preservation of ‘Mackenzie Mountains supergroup...
Journal Article
Published: 01 November 1989
Canadian Journal of Earth Sciences (1989) 26 (11): 2194–2203.
... to the dominantly clastic Late Proterozoic Tsezotene Formation and Katherine Group of the Mackenzie Mountains Supergroup. Tests of Carey's orocline hypothesis for the arc using linear regression and a plan-view application of the fold test suggest, in line with earlier structural studies, that the arc is largely...
Journal Article
Published: 01 October 1982
Canadian Journal of Earth Sciences (1982) 19 (10): 2020–2027.
...W. A. Morris; J. D. Aitken Abstract The Proterozoic stratigraphic column of the Mackenzie Mountains is dominated by two main successions, the platformal "Mackenzie Mountains Supergroup" beneath, and the Windermere-equivalent Rapitan Group and younger strata, of rift-depression and slope origin...
Journal Article
Published: 01 February 1982
Canadian Journal of Earth Sciences (1982) 19 (2): 316–323.
... the base of the Windermere Supergroup. Rb–Sr isochron dates of 766 ± 24 and 769 ± 27 Ma have been obtained for two of the these diabase sheets, which intruded the Tsezotene Formation of the Mackenzie Mountains Supergroup. The emplacement of the diabase sills and dikes may be related to either of two...
Journal Article
Published: 01 June 1991
Bulletin of Canadian Petroleum Geology (1991) 39 (2): 208.
... Group and Mackenzie Mountains supergroup; and 5) Phanerozoic strata. Equivalents of Rae Group and Mackenzie Mountains supergroup underlie parts of Anderson Plains but are virtually missing from the Colville Hills area. Under Colville Hills, basement and Hornby Bay (1663 Ma) were compressively deformed...
Journal Article
Journal: GSA Bulletin
Published: 01 June 1988
GSA Bulletin (1988) 100 (6): 877–890.
...) Wopmay orogen some 400 km to the east. The structures of the thrust and fold belt are unconformably overlain by nearly horizontal layers of Paleozoic (Lower Cambrian to Middle Devonian) and perhaps upper Proterozoic (Mackenzie Mountains Supergroup?) sediments. The age of the thrusting is thus likely...
Journal Article
Journal: GSA Bulletin
Published: 01 April 1996
GSA Bulletin (1996) 108 (4): 454–470.
... stratigraphic studies of Succession B, along with improved geochronology, allow extension and refinement of existing correlation schemes for northwestern Canada and Alaska. Succession B strata include the Shaler Supergroup of the Amundsen Basin, Mackenzie Mountains supergroup of the Mackenzie Mountains fold...
Book Chapter

Series: DNAG, Geology of North America
Published: 01 January 1991
DOI: 10.1130/DNAG-GNA-G2.125
EISBN: 9780813754543
... mountains the supergroup unconformably overlies strata of the Purcell and Mackenzie Mountains supergroups, respectively. In and near the Omineca Belt the rocks unconformably overlie basement of granitic gneiss ranging in age from 728 Ma to more than 2 Ga (see Chapter 4). Elsewhere, the lower contact...
Journal Article
Journal: GSA Bulletin
Published: 01 July 2012
GSA Bulletin (2012) 124 (7-8): 1155–1168.
... with generally local provenance. Samples from Mackenzie Mountains were most likely derived from the Proterozoic Mackenzie Mountains Supergroup and are dominated by detrital zircon ages of ca. 1020–1516 Ma, but also contain populations of ca. 1615–1692 Ma and ca. 2699–2752 Ma. Cambrian sandstones from south...
FIGURES
First thumbnail for: Two detrital zircon signatures for the Cambrian pa...
Second thumbnail for: Two detrital zircon signatures for the Cambrian pa...
Third thumbnail for: Two detrital zircon signatures for the Cambrian pa...
Journal Article
Journal: GSA Bulletin
Published: 30 June 2017
GSA Bulletin (2017) 129 (11-12): 1408–1423.
...Robert H. Rainbird; N.M. Rayner; T. Hadlari; L.M. Heaman; A. Ielpi; E.C. Turner; R.B. MacNaughton Abstract We present detrital zircon U-Pb data from mainly fluvial sandstones of the Mackenzie Mountains Supergroup, Yukon (four samples), and the Shaler Supergroup, Northwest Territories (seven samples...
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First thumbnail for: Zircon provenance data record the lateral extent o...
Second thumbnail for: Zircon provenance data record the lateral extent o...
Third thumbnail for: Zircon provenance data record the lateral extent o...
Journal Article
Published: 01 March 1994
Canadian Journal of Earth Sciences (1994) 31 (3): 447–457.
... Proterozoic (probably Mackenzie Mountains Supergroup) and Phanerozoic sedimentary rocks. The strata are considered to be Wernecke basin sedimentary rocks that were uplifted during deformation associated with the development of the Racklan Orogen. De nouvelles données de sismique réflexion profonde...
Journal Article
Journal: GSA Bulletin
Published: 01 March 2014
GSA Bulletin (2014) 126 (3-4): 398–414.
...Figure 8. Detrital zircon populations from Mackenzie Mountains Supergroup (MMS) as potential source strata. (A) Thermal ionization mass spectrometry (TIMS) data compiled from Rainbird et al. (1996b , 1997) . (B–C) Probability distributions for Little Dal and Katherine Groups ( Fig. 3 ), part...
FIGURES
First thumbnail for: Detrital zircon lineages of late Neoproterozoic an...
Second thumbnail for: Detrital zircon lineages of late Neoproterozoic an...
Third thumbnail for: Detrital zircon lineages of late Neoproterozoic an...