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Grinnell Formation

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Journal Article
Journal: GSA Bulletin
Published: 15 February 2019
GSA Bulletin (2019) 131 (9-10): 1411-1439.
... sedimentary breaks, the Mesoproterozoic Belt Basin of western North America was structurally active and experienced dramatic and continuous subsidence and sediment accumulation. The Grinnell Formation (ca. 1.45 Ga) in the lower part of the Belt Supergroup affords an opportunity to explore the interplay...
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Journal Article
Published: 01 August 1977
Bulletin of Canadian Petroleum Geology (1977) 25 (4): 713-735.
...Jon A. Collins; Leigh Smith Abstract Copper in the Helikian Grinnell Formation, Alberta, occurs in "cyclic quartz arenite units," produced by short-lived fluvial to lacustrine episodes in a semi-arid region. Each cyclic unit consists of a 2- to 3-foot-thick red argillite overlain by a mineralized...
Series: GSA Special Papers
Published: 01 September 2016
DOI: 10.1130/2016.2522(01)
... The ca. 1.460 Ga Revett Formation is a gray and purple quartzite lithosome in northwestern Montana, and it interfingers eastward into red argillite of the Grinnell Formation in Glacier National Park. The Revett Formation was analyzed in northwestern Montana by identifying sedimentary structures...
Journal Article
Published: 01 January 1977
Canadian Journal of Earth Sciences (1977) 14 (1): 67-73.
...Icaro Vitorello; Rob Van der Voo Abstract The natural remanent magnetizations of Beltian argillites from the Spokane Formation (formerly Grinnell Formation) have been analyzed with alternating field and thermal demagnetization techniques. Two groups of magnetic directions have been observed. One...
Journal Article
Published: 01 January 2004
Exploration and Mining Geology (2004) 13 (1-4): 109-118.
...IAIN MITCHELL; ROBERT L. LINNEN; ROBERT A. CREASER Abstract The Bermuda Zn-Pb showing is hosted by dolomitized Blue Fiord Formation of Devonian age, located east of the Ensorcellement dome on the Grinnell Peninsula of Devon Island. Fluid inclusions in hydrothermal calcite indicate...
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Image
—Measured stratigraphic sections of Emma Fiord <b>Formation</b> on <b>Grinnell</b> Penins...
Published: 01 January 1988
Figure 5 —Measured stratigraphic sections of Emma Fiord Formation on Grinnell Peninsula, Devon Island.
Image
—Outcrop photographs of Emma Fiord <b>Formation</b> on <b>Grinnell</b> Peninsula, Devon I...
Published: 01 January 1988
Figure 6 —Outcrop photographs of Emma Fiord Formation on Grinnell Peninsula, Devon Island. (A) Typical exposure of Emma Fiord marlstones and carbonaceous shales close to base of Section 3. Note that much of section is covered. Line indicates approximate position of Section 3. (B) Gently dipping
Image
—Petrography of Emma Fiord <b>Formation</b>, <b>Grinnell</b> Peninsula, Devon Island. (a)...
Published: 01 January 1988
Figure 7 —Petrography of Emma Fiord Formation, Grinnell Peninsula, Devon Island. (a) General view of chert and algal tufa conglomerate with a variety of calcified algal structures (A) mixed with chert (C) and quartz grains. Many clasts have laminated calcite coatings (arrow). (b) Fragments
Image
—Petrography of Emma Fiord <b>Formation</b>, <b>Grinnell</b> Peninsula, Devon Island. (A)...
Published: 01 January 1988
Figure 8 —Petrography of Emma Fiord Formation, Grinnell Peninsula, Devon Island. (A) Detail of silty ostracod mudstone with fragments of disarticulated ostracod valves and other arthropod detritus in micritic calcite matrix. (B) Phosphatic bone fragments from limestone interbed in Section 1. (C
Journal Article
Journal: AAPG Bulletin
Published: 01 January 1988
AAPG Bulletin (1988) 72 (1): 8-20.
...Figure 5 —Measured stratigraphic sections of Emma Fiord Formation on Grinnell Peninsula, Devon Island. ...
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Series: SEPM Special Publication
Published: 01 January 2007
DOI: 10.2110/pec.07.86.0065
EISBN: 9781565762947
... reference section must be sought elsewhere. The Grinnell Glacier section in Glacier National Park (Fig. 1B ) exposes a full, unfaulted section of the Helena Formation containing well developed, thin, siliciclas– tic–to–dolomite cycles characteristic of the eastern facies of the formation. It is accessible...
Journal Article
Published: 17 October 2002
Canadian Journal of Earth Sciences (2002) 39 (10): 1485-1503.
...Rong-yu Li; Brian Jones Abstract The carbonate–siliciclastic strata in the Bird Fiord Formation of Arctic Canada contain a diverse brachiopod-dominated biota. A collection of 46 381 brachiopods from 126 sites at 35 localities on Ellesmere Island, North Kent Island, Grinnell Peninsula (Devon Island...
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Journal Article
Journal: AAPG Bulletin
Published: 01 April 1964
AAPG Bulletin (1964) 48 (4): 521.
... along major thrust and normal faults rather than by flexure. Northerly trending folds and faults in Cornwallis Fold Belt on Bathrust and Cornwallis Islands and on Grinnell Peninsula are continuations of the Boothia basement structures. Cambrian to Devonian rocks were deposited over the site of the arch...
Journal Article
Journal: AAPG Bulletin
Published: 01 December 1970
AAPG Bulletin (1970) 54 (12): 2499.
... and the formations are in part facies equivalents of each other. The Offley Island Formation consists of biostromal and biohermal limestones and associated calcarenites and limestone conglomerates. The Cape Schuchert Formation is composed primarily of somewhat argillaceous calcisiltites, but includes minor...
Series: GSA Special Papers
Published: 01 January 1970
DOI: 10.1130/SPE130-p1
... A Lower Permian fusulinid fauna was found in rocks of Mankomen age within a fault block in the Upper Delta River area, east-central Alaska Range. Three members of the M ankomen Formation are recognized and described from this area. They are, in stratigraphic order: a lower Tuffaceous Sandstone...
Journal Article
Published: 09 September 2009
Geological Magazine (2009) 146 (6): 937-940.
... and are probably attributable to this crinoid (cf. Fig. 3 ). Figure 2 Simplified stratigraphy of the Inoceramus Shales in St Ann's Great River Inlier showing the range of Unitacrinus socialis Grinnell. W. F. – Windsor Formation; Act – Actaeonella Beds. Figure 3 Calyx and brachial plates...
Journal Article
Published: 01 July 2002
Journal of Paleontology (2002) 76 (4): 648-658.
... area. 2, Distribution of the Bird Fiord Formation in the Arctic islands (modified from Goodbody, 1985 ). 3, Location of measured sections on SW Ellesmere Island and North Kent Island. 4, Location of measured sections on Grinnell Peninsula, Devon Island. 5, Location of measured sections...
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Journal Article
Published: 25 September 2007
Canadian Journal of Earth Sciences (2007) 44 (9): 1291-1311.
... part of the Devonian succession of this region because it is 465 m (eastern Grinnell Peninsula) to ∼ 900 m thick (western Bathurst Island) and crops out widely between southwest Ellesmere Island and Bathurst Island (Fig.  1 ). Various units in the Bird Fiord Formation contain an abundant, diverse biota...
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Journal Article
Published: 01 March 2003
Journal of Paleontology (2003) 77 (2): 243-266.
... ), and lateral ( 5 ) views, ×1, from boundary of Blubber Point and Baad Fiord members, Norfolk Inlet (NFI-1), Devon Island, UA12927; 6, dorsal view, ×1.5, from Bird Fiord Formation carbonate equivalent, 10 km west of Arthur Fiord (SWAF 2/1), Grinnell Peninsula, UA12928. 7 – 18 , Spinulicosta sp.; 7 – 11...
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Journal Article
Published: 01 January 2007
Journal of Paleontology (2007) 81 (1): 48-63.
... in the text, but has deep sulci to either side of the fold in figure 5, unlike C. subquadrata specimens from the Arco Hills Formation. Grinnell and Andrews (1964) consider C. subquadrata to be a Chesterian-originating species of Composita derived from the species C. trinuclea . Intergradational...
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