Vendom Fiord Formation-a new red-bed unit of probable early middle Devonian, Eifelian, Age, Ellesmere Island, Arctic Canada

1967 ◽  
Author(s):  
J W Kerr
Keyword(s):  
Middle Devonian ◽  
Ellesmere Island ◽  
Arctic Canada ◽  
Red Bed

Middle Devonian brachiopods from the Bird Fiord Formation, Arctic Canada

2003 ◽  
Vol 77 (2) ◽  
pp. 243-266 ◽  
Author(s):  
Li Rong-Yu ◽  
Brian Jones
Keyword(s):  
New Species ◽  
Middle Devonian ◽  
Canadian Arctic ◽  
Ellesmere Island ◽  
The Arctic ◽  
Arctic Canada ◽  
Early Devonian ◽  
Delta Plain ◽  
The Cross

The late Early Devonian to Middle Devonian Bird Fiord Formation, which is up to 900 m thick, is exposed along an extensive outcrop belt from stretches from Ellesmere Island to Bathurst Island in Arctic Canada. This formation, which encompasses sediments that accumulated in sabkha, deltaic, and shelf settings, is divided into six members. The Blubber Point, Baad Fiord, Norwegian Bay, and Cardigan Strait members, which include sediments that formed on an open marine shelf, are characterized by a diverse biota of brachiopods, mollusks, corals, trilobites, and sponges. The Cross Bay and Grise Fiord members, which encompass sediments that formed in a sabkha and delta plain settings, respectively, are generally devoid of fossils.A collection of 47,026 brachiopods, which came from 140 collections made at 34 locations throughout the outcrop belt of the Bird Fiord Formation, contains 22 species of brachiopods that belong to 21 genera. This biota includes six new species: Gypidula mega, Spinatrypa (Isospinatrypa) parva, Desquamatia (Independatrypa) fortis, Nucleospira stelcki, Warrenella grinnellensis, and Cranaena briceae. Four genera (Arcticastrophia Li and Jones, 2002, Borealistrophia Li and Jones, 2002, Grinnellathyris Li and Jones, 2002, and Costacranaena Johnson and Perry, 1976) and 16 species of brachiopods are endemic to the Arctic Canada. Conversely, the fauna also includes European elements such as Nucleospira lens (Schnur), Spinatrypa (Isospinatrypa), and Warrenella. These taxa may indicate that there was some communication between the Canadian Arctic and Europe during Middle Devonian.

Permian Sponges from Western Ellesmere Island, Arctic Canada

1973 ◽  
Vol 10 (9) ◽  
pp. 1431-1443 ◽  
Author(s):  
J. Keith Rigby ◽  
Forrest M. Terrell
Keyword(s):  
Ellesmere Island ◽  
Arctic Canada ◽  
New Family

Sponges occur widespread in Permian formations in western Ellesmere Island on Fosheim, Raanes, and Bjorne Peninsulas. Scheiia tuberosa Tschernyschew and Stepanov, 1916, is described from the Assistance and Tanquary formations and is the most widely occurring sponge in the collections. Haplistion arcticum (Dunikowski, 1884), Haplistion latituba (Dunkowski, 1884), Haplistion diactinum n. sp., and Raanespongia monilis, n. gen. and n. sp., all occur in the Assistance Formation. Raanespongia monilis n. sp. is the basis of the new family Raanespongiidae which is included in the Eutaxicladina.

RECENT INFORMATION AND PROSPECTS IN THE KIDSON SUB-BASIN

1971 ◽  
Vol 11 (1) ◽  
pp. 53
Author(s):  
K. J. Creevey
Keyword(s):  
Middle Devonian ◽  
Seismic Refraction ◽  
Canning Basin ◽  
Recent Information ◽  
Geomorphological Mapping ◽  
Wet Gas ◽  
Refraction Seismic ◽  
Mapping Techniques ◽  
Surface Geology ◽  
Red Bed

A deep sedimentary depression, the Kidson Sub-basin, has been indicated within the southern Canning Basin by gravity and aeromagnetism. The wells, Sahara 1, Kidson 1 and Wilson Cliffs 1, showed that at least 15,000 feet of Phanaerozoic sediments were present. This paper aims to summarise information given by these wells and to indicate prospects and techniques for further exploration in the sub-basin.Previous surface geology had indicated Mesozoic and Permian sediments in the area bordered by Proterozoic outcrop. Geomorphological mapping techniques have been successfully used by Aquitaine to indicate possible structures for seismic work.Seismic results from Wapet and Aquitaine indicate gentle diastrophism within the sub-basin with the existence of a palaeogeographic limit to pre-Permian sediments in the east.The western Canning Basin had previously shown a Mesozoic and Permian sequence overlaying Ordovician shales, limestones and sandstones on igneous and metamorphic basement.Sahara 1, and later Kidson 1 and Wilson Cliffs 1, proved the presence of a Middle and pre-Middle Devonian limestone — red bed — evaporite sequence in the sub-basin: the MellinjerieLimestone, Tandalgoo Red Beds and Carribuddy Formation. The underlying Ordovician shales and tight sandstones in Wilson Cliffs 1 can be correlated with the Horn Valley to Pacoota Formations in the Amadeus Basin. In Wilson Cliffs 1 these sandstones overlie Proterozoic shales.The only show noted was minor wet gas associated with Ordovician dolomites in Wilson Cliffs 1. A major petroleum prospect of the sub-basin could be sought in improvement in the reservoir capabilities of the Ordovician sandstones along the palaegeographic eastern margin of the basin.Favourable pinchout forms of these Ordovician sandstones have been found by recent refraction seismic. Refraction, combined with gravity, geomorphology and detailed seismic techniques, can outline drillable prospects along the Kidson Sub-basin.

New occurrences of Oldhamia and other trace fossils in the Cambrian of the Yukon and Ellesmere Island, arctic Canada

1994 ◽  
Vol 31 (5) ◽  
pp. 767-782 ◽  
Author(s):  
H. J. Hofmann ◽  
M. P. Cecile ◽  
L. S. Lane
Keyword(s):  
North America ◽  
Western Europe ◽  
Trace Fossils ◽  
Trace Fossil ◽  
Ellesmere Island ◽  
Early Cambrian ◽  
Arctic Canada ◽  
North Central ◽  
Middle Cambrian ◽  
New Occurrences

Trace fossil assemblages from green and maroon argillites at 34 localities in the British Mountains and Barn Mountains of northernmost Yukon, and 3 localities in the Grant Land Formation of northern Ellesmere Island contain abundant Planolites spp., Oldhamia curvata, Oldhamia flabellata, and Oldhamia radiata, and rare Oldhamia antiqua, Oldhamia? wattsi (n.comb.), Bergaueria hemispherica, Cochlichnus sp., Didymaulichnus? sp., Helminthoidichnites sp., Monomorphichnus sp., Protopaleodictyon sp., and Tuberculichnus? sp. Additionally, 11 new sites in the Selwyn Mountains of north-central Yukon have yielded an ichnofauna including Helminthorhaphe sp., O. curvata, O. flabellata, O. radiata, Plagiogmus? sp., Planolites spp., and unidentified small hemispherical traces. All these assemblages are interpreted as Early Cambrian to early Middle Cambrian, based on comparison with Oldhamia-bearing ichnofaunas of similar age in North America, Argentina, and western Europe, and on archaeocyathids and olenellids in overlying units.

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