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Database for the Edson CBM Exploration Block-Alberta, Ardley Coal Zone Characterization and Sandstone Channels Geometry

Description

Database is designed to define the Ardley coal picks including coal stratigraphic correlation and coal quality (clean coal, shaly-coal and coaly-shale), formation tops and lithological components,... More ≫

Description

Database is designed to define the Ardley coal picks including coal stratigraphic correlation and coal quality (clean coal, shaly-coal and coaly-shale), formation tops and lithological components, such as sandstone channels and tonstein markers. It represents the base of the Edson CBM Exploration Block-Alberta, Ardley Coal Zone Characterization and Sandstone Channels Geometry report, Earth Sciences Report 2007-06.

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Extents of Bedrock Units in Southeastern Alberta (NTS 72E, 72L, 73D, and 73E) (GIS data, line features)

Description

This GIS dataset is part of a digital compilation of the bedrock geology of NTS areas 72E, 72L, 73D, and 73E. It is one of the datasets used to produce Alberta Geological Survey (AGS) Maps 567,... More ≫

Description

This GIS dataset is part of a digital compilation of the bedrock geology of NTS areas 72E, 72L, 73D, and 73E. It is one of the datasets used to produce Alberta Geological Survey (AGS) Maps 567, 568, 569, and 570. This dataset represents the compilation of existing geological maps and original geological mapping by AGS staff. Mapping included field observations and creating three-dimensional models of subsurface stratigraphy based on the interpretation of geophysical logs from oil and gas wells. Each three-dimensional formation surface was projected to a model of the bedrock surface, and the intersection formed the first approximation of the position of the geological contact at the base of the surficial deposits. We adjusted these preliminary contacts to honour outcrop data and the interpretation of the bedrock unit immediately below surficial deposits in individual wells. The data were created in file geodatabase format and output for public distribution in shapefile format. AGS...

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Structure Top of the Haynes Aquifer, Alberta (Gridded data, ASCII format)

Description

This is a 1000 m cell-sized raster grid dataset of the top of the sandstone of the Haynes member of the Paskapoo Formation. We mapped the sandstone using 3-D geostatistical modelling algorithms... More ≫

Description

This is a 1000 m cell-sized raster grid dataset of the top of the sandstone of the Haynes member of the Paskapoo Formation. We mapped the sandstone using 3-D geostatistical modelling algorithms from data derived from sand calculations of 25 m thick slice intervals of the Paskapoo Formation. We selected the >55% sand isovalue to define sandstone, based on the results of mini-models that show vertical hydraulic connections being established if sand abundance is 55% or greater. This grid represents the upper surface of that three-dimensional body defined by the >55% sand threshold value. Alberta Geological Survey Bulletin 66 provides a detailed description of how the unit was defined. The dataset is in ESRI ASCII grid format.

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Twentieth Percentile Modelled Base of the Paskapoo Formation, Alberta (Gridded data, ASCII format)

Description

The base of the Paskapoo Formation is unconformable with the underlying Scollard Formation. Alberta Geological Survey differentiates the Paskapoo Formation from the underlying Scollard Formation... More ≫

Description

The base of the Paskapoo Formation is unconformable with the underlying Scollard Formation. Alberta Geological Survey differentiates the Paskapoo Formation from the underlying Scollard Formation by the first thick sandstone above the uppermost coal seam of the Ardley coal zone. We defined 'thick sandstone' to be 5 m or more thick. This dataset contains the gridded results of the structural surface of the base of the Paskapoo Formation modelled from stratigraphic picks of the >5 m sand above the Scollard Formation coal from oil and gas industry gamma-ray logs. We modelled only the undeformed part of the Paskapoo Formation, which lies east of the Rocky Mountains deformation belt. Because of uncertainty in defining the Paskapoo-Scollard contact, we selected the P20 (20th percentile or low estimate) modelled surface of those data, which is about 5 m deeper than the P50 or median estimated surface. Subsequent boundaries of slices were constructed parallel to this surface, recognizing...

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Geochemical data for mudstones, shales and other Cretaceous rocks of northwestern Alberta

Description

Geochemical analytical data are reported for 123 Cretaceous rock samples from northwestern Alberta collected by Alberta Geological Survey (AGS) staff from 2001 to 2005. The values for one repeat... More ≫

Description

Geochemical analytical data are reported for 123 Cretaceous rock samples from northwestern Alberta collected by Alberta Geological Survey (AGS) staff from 2001 to 2005. The values for one repeat analysis are included (5602R), making a total of 124 analytical records. The results include analyses of 57 mudstone, 29 shale, 13 ironstone, 6 pyrite (float), 5 kimberlite (including one till clast) and 5 sandstone (including one bioclastic sandstone) samples. Geochemical analyses were performed by Acme Analytical Laboratories Ltd. of Vancouver, British Columbia, for a wide range of elements and oxides using the following analytical methods. (a) Method 1EX: four-acid (HF-HNO3-HClO4-HCl) digestion and inductively coupled plasma atomic emission spectrometry (ICP-AES) and inductively coupled plasma mass spectrometry (ICP-MS) multi-element analyses. (b) Method 1F: aqua regia digestion and inductively coupled plasma atomic emission spectrometry (ICP-AES) and inductively coupled plasma mass...

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