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Ellis Group

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Journal Article
Journal: AAPG Bulletin
Published: 01 October 2004
AAPG Bulletin (2004) 88 (10): 1391-1418.
...Dale A. Leckie; Karen E. Wallace-Dudley; Nancy A. Vanbeselaere; David P. James Abstract Nonmarine strata of the Lower Cretaceous Mannville Group and marine strata of the Upper Jurassic Ellis Group in southern Alberta were deposited in the low-accommodation, eastern, and distal margin of the Western...
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Series: AAPG Special Publication
Published: 01 January 1958
DOI: 10.1306/SV17349C4
EISBN: 9781629812441
... unconformably on the Rierdon and has a maximum thickness of 150 feet. It consists of glauconitic sandstone, siltstones, concretions, dark gray shale, and generally has chert pebbles at the base. Facies change from west to east in the Fernie group of the foothills to the Ellis group of the southern Alberta...
Journal Article
Journal: AAPG Bulletin
Published: 01 August 1946
AAPG Bulletin (1946) 30 (8_Part_1): 1294-1305.
Journal Article
Published: 01 April 2013
American Mineralogist (2013) 98 (4): 616-628.
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Journal Article
Journal: GSA Bulletin
Published: 01 March 2011
GSA Bulletin (2011) 123 (3-4): 507-533.
... from Middle Jurassic through Eocene time in northwestern Montana. The oldest deposits in the foreland basin system consist of relatively thin, regionally tabular deposits of the marine Ellis Group and fluvial-estuarine Morrison Formation, which accumulated during Bajocian to Kimmeridgian time. U-Pb...
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Journal Article
Journal: Geology
Published: 01 April 2009
Geology (2009) 37 (4): 379-382.
... provenance from accreted terranes and deformed miogeoclinal rocks to the west. Subsidence commenced ca. 170 Ma and followed a sigmoidal pattern characteristic of foreland basin systems. Thin Jurassic deposits of the Ellis Group and Morrison Formation accumulated in a backbulge depozone. A regional...
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Series: AAPG Special Publication
Published: 01 January 1958
DOI: 10.1306/SV17349C5
EISBN: 9781629812441
.... The four formations are described briefly and attempts are made to illustrate the correlation between them and the Sawtooth, Rierdon, and Swift formations of the Ellis Group of Montana. The difficulties experienced in determining the Jurassic-Cretaceous boundary are illustrated by means of several cross...
... Abstract The Jurassic sediments of the southern Alberta plains, known only from subsurface work, are described as to lithology, thickness, distribution, stratigraphic relationships, and geologic history. The three-fold subdivision of the Ellis group into Swift formation, Rierdon formation...
Journal Article
Published: 01 May 2018
American Mineralogist (2018) 103 (5): 792-802.
... with space group C 2 /c ) transforms to stishovite (rutile-type SiO 2 with space group P 4 2 /mnm ) at ∼7–13 GPa and high temperatures (e.g., Zhang et al. 1996 ), marking a transition in Si coordination from tetrahedral to octahedral. At lower mantle pressures, stishovite undergoes a second-order...
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Series: AAPG Memoir
Published: 01 January 2007
DOI: 10.1306/1209852M873258
EISBN: 9781629810072
.... Figure 1. Jotun field area location map and structural outline at the top Heimdal Formation. Depth structure map and field average reservoir parameters Figure 4. Well tie line showing thinning of the upper Heimdal Formation from the Elli structure to Tau with each seismic layer showing...
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Journal Article
Journal: Interpretation
Published: 26 May 2015
Interpretation (2015) 3 (3): SU33-SU46.
... with Chevron (1982–1997), MapFactory (1997–2002), and Ellis GeoSpatial (2002–present). Figure 8. This photomicrograph of a polished section from 1530 to 1621 m (5020–5320 ft) from the Cretaceous Inyan Kara Group in the Harstad well shows hydrothermal sulfide and iron oxide void infill...
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Journal Article
Published: 01 August 2011
American Mineralogist (2011) 96 (8-9): 1278-1290.
... and Gibbs (1971) using the cation radii of Shannon (1976) . a (Å) 12.0790(8) 12.0854(12) 11.9204(8) 12.0279(9) V (Å 3 ) 1762.35 1765.16 1693.84 1740.08 Space group Ia 3̅ d Ia 3̅ d Ia 3̅ d Ia 3̅ d 2 range 8.26–69.78 8.26–69.74 9.63–68.67 9.62–69.90 Total...
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Journal Article
Published: 01 September 2001
American Mineralogist (2001) 86 (9): 1034-1052.
...% less in darkly zoned quartz than in either the bright rim or the core of one crystal. No significant difference exists between dark and bright bands in adjacent zones. We imaged 46 crystals (or crystal fragments). All have CL zoning and they are displayed at the same scale in stratigraphic groups...
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Journal Article
Journal: PALAIOS
Published: 01 February 2001
PALAIOS (2001) 16 (1): 26-52.
... or broad subsets of species rather than select taxa); (3) variables scored independently (e.g., encrustation v. boring) rather than grouped into summary grades; and (4) evaluation of rank-ordering of variables in plots of threshold damage profiles as a complement to ternary taphograms. Damage to shell...
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Image
The seven major unconformities identified in the <b>Ellis</b> and Mannville <b>Groups</b>...
Published: 01 October 2004
Figure 15 The seven major unconformities identified in the Ellis and Mannville Groups in the Manyberries area. The five cored wells shown vertically provide documentation of the surfaces.
Journal Article
Published: 01 February 2010
The Canadian Mineralogist (2010) 48 (1): 29-40.
... to be a heterophyllosilicate with astrophyllite-type HOH layers in which five-coordinated Fe 3+ takes the place of Ti 4+ . The interlayer region contains Ba atoms, PO 4 groups and CO 3 groups. The configuration of the Ba and PO 4 in the interlayer region is similar to that found in the structure of yoshimuraite. Abstract Nous...
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Journal Article
Published: 01 December 2005
Mineralogical Magazine (2005) 69 (6): 973-980.
...J. J. Pluth; I. M. Steele; A. R. Kampf; D. I. Green Abstract Redgillite, Cu 6 (OH) 10 (SO 4 )·H 2 O, space group P 2 1 / c , a 3.155(3) Å, b 10.441(8) Å, c 19.436(16) Å, β 90.089(13)°, V = 640.2(9) Å 3 , Z = 2, is a new mineral from Silver Gill, Caldbeck Fells, Cumbria, England. The strongest...
FIGURES
Journal Article
Published: 01 October 2002
The Canadian Mineralogist (2002) 40 (5): 1375-1393.
... structurales parmi ces groupes de minéraux résultent de ressemblances dans les spectres XANES. Les spectres acquis le long des chaînes ( c dans le cas de pyroxènes et des amphiboles, et a dans le cas de silicates en feuillets) sont semblables, compte tenu des changements des directions optiques, de sorte...
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Journal Article
Published: 01 April 2003
Bulletin of the Seismological Society of America (2003) 93 (2): 724-736.
... of the event and can be used to identify a shallow event ( Bath, 1975 ; Kafka, 1990 ). Rg group velocities are controlled by velocity variations in the upper few kilometers of the crust along the propagation path, and the phase amplitudes are highly attenuated in regions of complex terrain. Kocaoglu...
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Journal Article
Published: 01 October 2006
American Mineralogist (2006) 91 (10): 1675-1687.
... to form from hibonite. This group exhibits the most textural diversity among the petrographic types we have distinguished. Only two spherule fragments have textures that are similar to each other. One is shown in Figure 1f . They are dominated by spinel and hibonite with fine, anhedral inclusions...
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