Upper Devonian to Middle Jurassic Assemblages

Gordey, S P; Geldsetzer, H. H. J.; Morrow, D.W.; Bamber, E W; Henderson, Charles M.; Richards, B C; McGugan, Alan; Gibson, D W; Poulton, T P; Monger, J. W. H.; Wheeler, J O; Tipper, H W; Gabrielse, H; Harms, TA; Struik, L C; Campbell, Robert Burns; Dodds, C. J.; Gehrels, George E.; O’Brien, James P.

doi:10.1130/dnag-gna-g2.219

Cited by 4 publications

(10 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Imperial Formation sandstone is typically composed of quartz, feldspar, chert, and accessory white mica. The Imperial Formation ranges in thickness from 590 to 1690 m, with the greatest accumulation in the Peel Plateau area of northwestern Northwest Territories (Gordey et al, 1991).…”

Section: Late Devonian Imperial Formationmentioning

confidence: 99%

“…Southwest-dipping seismic refl ectors show the turbidite complex had a source from the east-northeast (Hadlari et al, 2009). Late Devonian turbiditic sandstone units in northern Yukon and Northwest Territories to the north and west of the Mackenzie Mountains contain fl ute casts, load casts, and tool marks that suggest a source region to the north (Gordey et al, 1991).…”

Section: Late Devonian Imperial Formationmentioning

confidence: 99%

“…The Tuttle Formation consists of chert conglomerate, very poorly sorted quartz and chert lithic sandstone, and micaceous sandstone, siltstone, and shale at its type section (Pugh, 1983). Surface and borehole studies indicate that the Tuttle Formation is up to 1420 m thick (Pugh, 1983;Gordey et al, 1991). Pugh (1983) proposed that the lowermost occurrence of coarse-grained clastic strata conformably overlying Imperial Formation rocks represents the base of the Tuttle Formation.…”

Section: Late Devonian To Early Mississippian Tuttle Formationmentioning

confidence: 99%

“…There is no consensus on the depositional setting for Tuttle Formation strata, as both marine and nonmarine alternatives have been suggested (Lutchman, 1977;Hills and Braman, 1978). South-directed paleocurrent indicators (load casts, fl ute casts, tool marks) imply that Tuttle Formation strata originated from a region to the north (Gordey et al, 1991). However, seismic-refl ection data from the Peel Plateau area display southwestdipping clinoforms within the Tuttle Formation, indicating a source from the northeast (Osadetz et al, 2005;Hadlari et al, 2009).…”

Section: Late Devonian To Early Mississippian Tuttle Formationmentioning

confidence: 99%

“…Regional extension along the northern Cordilleran margin during the Devonian led to the deposition of turbiditic clastic rocks assigned to the Earn Group (Gordey et al, 1991). The mid-Famennian to Tournaisian (?)…”

Section: Late Devonian To Middle Mississippian Cordilleran Margin Stratamentioning

confidence: 99%

See 4 more Smart Citations

Detrital zircon geochronology of the western Ellesmerian clastic wedge, northwestern Canada: Insights on Arctic tectonics and the evolution of the northern Cordilleran miogeocline

Beranek

Mortensen

Lane

et al. 2010

Geological Society of America Bulletin

View full text Add to dashboard Cite

Section: Late Devonian Imperial Formationmentioning

confidence: 99%

Section: Late Devonian Imperial Formationmentioning

confidence: 99%

Section: Late Devonian To Early Mississippian Tuttle Formationmentioning

confidence: 99%

Section: Late Devonian To Early Mississippian Tuttle Formationmentioning

confidence: 99%

Section: Late Devonian To Middle Mississippian Cordilleran Margin Stratamentioning

confidence: 99%

See 3 more Smart Citations

Detrital zircon geochronology of the western Ellesmerian clastic wedge, northwestern Canada: Insights on Arctic tectonics and the evolution of the northern Cordilleran miogeocline

Beranek

Mortensen

Lane

et al. 2010

Geological Society of America Bulletin

View full text Add to dashboard Cite

Chapter 5 The Paleozoic Western Craton Margin

Miall¹

2008

Sedimentary Basins of the World

View full text Add to dashboard Cite

Geochemical constraints on the provenance of pre-Mississippian sedimentary rocks in the North Slope subterrane of Yukon and Alaska

Nelson

Strauss

Crockford

et al. 2019

Circum-Arctic Structural Events: Tectonic Evolution of the Arctic Margins and Trans-Arctic Links With Adjacent Orogens

View full text Add to dashboard Cite

The North Slope subterrane of Arctic Alaska extends from the northeastern Brooks Range of Alaska into adjacent Yukon, Canada, and includes a pre-Mississippian deep-water sedimentary succession that has been historically correlated with units exposed in the Selwyn basin of northwestern Laurentia. Sedimentary provenance data, including Sm-Nd isotopes and major and trace element geochemistry, provide detailed geochemical characterization of the regional pre-Mississippian strata of the North Slope subterrane. Combined with paleontological and geochronological age constraints, these new data record a marked shift in provenance in the Ordovician–Devonian(?) Clarence River Group, evidently linked to an influx of juvenile, arc-derived material. The timing and nature of this provenance change are consistent with early Paleozoic tectonic reconstructions of the Arctic margin that restore the North Slope subterrane to northeastern Laurentia (present coordinates), proximal to the Appalachian-Caledonian orogenic belt. Such a restoration requires significant post-Early Devonian sinistral strike-slip displacement to later incorporate the North Slope subterrane into the composite Arctic Alaska terrane.

show abstract

Upper Devonian to Middle Jurassic Assemblages

Cited by 4 publications

References 0 publications

Detrital zircon geochronology of the western Ellesmerian clastic wedge, northwestern Canada: Insights on Arctic tectonics and the evolution of the northern Cordilleran miogeocline

Detrital zircon geochronology of the western Ellesmerian clastic wedge, northwestern Canada: Insights on Arctic tectonics and the evolution of the northern Cordilleran miogeocline

Chapter 5 The Paleozoic Western Craton Margin

Geochemical constraints on the provenance of pre-Mississippian sedimentary rocks in the North Slope subterrane of Yukon and Alaska

Contact Info

Product

Resources

About