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Found 10 records similar to Twentieth Percentile Modelled Base of the Paskapoo Formation, Alberta (Gridded data, ASCII format)

Provincial

This dataset maps the thickness of the Lacombe aquitard as defined by outputs of a 3-D model of sandiness in the Paskapoo Formation. The Lacombe aquitard consists of >65% non-sandy material in stacked, 25 m thick slices above the base of the Paskapoo Formation.

Last Updated: Dec. 9, 2020
Date Published: Sep. 12, 2012
Organization: Government of Alberta
Formats: HTML other
Keywords:  aquifers, aquitard, gis data, hydrostratigraphy, isopach, paskapoo formation, sand, 72e, 72l
Provincial

This is a raster dataset of the thickness of the Paskapoo Formation. It is a derived dataset created by the subtraction of the base of the Paskapoo Formation from the top of the formation, which in the western part of Alberta is also the bedrock topography. The gridded isopach data cover only the undeformed part of the Paskapoo Formation that extends west to the front ranges of the Rocky Mountains. The isopach data do not include those parts of the formation affected by tectonic folding or thrusting.

Last Updated: Dec. 10, 2020
Date Published: Sep. 12, 2012
Organization: Government of Alberta
Formats: HTML other
Keywords:  gis data, isopach, paskapoo formation, thickness, 72e, 72l, 72m, 73d, 73e
Provincial

This dataset is a grid of the thickness of the Haynes aquifer within the Paskapoo Formation. The Haynes aquifer is a regionally extensive body of sand that lies in the bottom part of the Paskapoo Formation. The isopach was created from the modelled results of the average sandiness of 25 m thick slices in boreholes completed within the Paskapoo Formation. Parts of the aquifer are as much as 100 m thick, particularly in the west near the deformation belt and in a region west of the city of Red Deer.

Last Updated: Dec. 10, 2020
Date Published: Sep. 12, 2012
Organization: Government of Alberta
Formats: HTML other
Keywords:  aquifers, gis data, haynes member, hydrostratigraphy, isopach, paskapoo formation, 82n, 82o, 82p
Provincial

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.

Last Updated: Dec. 10, 2020
Date Published: Sep. 12, 2012
Organization: Government of Alberta
Formats: HTML other
Keywords:  alberta foothills, alberta plains, aquifers, bedrock aquifer, gis data, haynes member, hydrostratigraphy, paskapoo formation, raster grid
Provincial

This dataset represents the topography of the top of the Paskapoo Formation, which is also the bedrock topography in the western part of Alberta. We clipped the surface from Alberta Geological Survey's Bedrock Topography of Alberta grid using the areal extent of the Paskapoo Formation shown on Alberta Geological Survey Map 236, Geological Map of Alberta. The dataset is in ESRI ASCII grid format

Last Updated: Dec. 10, 2020
Date Published: Sep. 12, 2012
Organization: Government of Alberta
Formats: HTML other
Keywords:  3d models, alberta foothills, alberta plains, bedrock topography, gis data, paskapoo formation, structure maps, 82i, 82j
Provincial

This digital dataset represents the modelled outputs of the three-dimensional distribution of sandiness in the Paskapoo Formation, Alberta, Canada. Sand-abundance values were determined from log analysis of water-well lithologs and petroleum exploration downhole-geophysical logs, specifically gamma-ray logs. We derived the sandiness values by calculating the average sandiness in 25 m thick slices above the base of the Paskapoo Formation in a borehole and by assigning the average value (P50) to the midpoint of each slice interval. Alberta Geological Survey Bulletin 66 provides detailed descriptions of the methodology.

Last Updated: Dec. 10, 2020
Date Published: Sep. 12, 2012
Organization: Government of Alberta
Formats: HTML other
Keywords:  3d models, aquifers, boreholes, data, geophysical logs, geostatistics, hydrostratigraphy, lithostratigraphy, paskapoo formation
Provincial

Sand bodies within the Sunchild aquifer subcrop over most of its extent, and because overlying Neogene sediment is relatively thin in the western part of the Paskapoo Formation, the unit expresses itself as the present-day topography. Constructing the Sunchild aquifer-thickness map was somewhat problematic because of the difficulty of mapping the step-like distribution and connection of sand bodies that, in places, are laterally adjacent to muddy intervals. The resultant isopach was generated by subtracting the Lacombe Member surface from the Sunchild surface to yield an approximation of Sunchild aquifer thickness. The Sunchild aquifer thickens from less than 50 m in the east to more than 300 m to the west.

Last Updated: Dec. 9, 2020
Date Published: Sep. 12, 2012
Organization: Government of Alberta
Formats: HTML other
Keywords:  airborne geophysical survey, alberta foothills, alberta plains, aquifers, gis data, hydrostratigraphy, isopach, paskapoo formation, sunchild aquifer
Provincial

This grid dataset is part of the three-dimensional (3-D) hydrostratigraphic model of the Sylvan Lake sub-basin in the Edmonton-Calgary Corridor, central Alberta. It represents the net-to-gross sandstone ratio distribution within the Paskapoo Formation - Lower Composite Slice of the Sylvan Lake sub-basin. The Lower Composite Slice is one of three distinct geological domains identified in the Paskapoo Formation of the Sylvan Lake sub-basin model. Characterization of net-to-gross sandstone ratio distribution within the Paskapoo Formation provides information about the geological heterogeneity and potential hydraulic connectivity within the formation for input into a groundwater flow model.

Last Updated: Dec. 10, 2020
Date Published: Jan. 1, 2015
Organization: Government of Alberta
Formats: HTML other
Keywords:  3d models, aquifers, boreholes, geology, gis data, hydrogeology, hydrostratigraphy, paskapoo formation, 82o
Provincial

This grid dataset is part of the three-dimensional (3-D) hydrostratigraphic model of the Sylvan Lake sub-basin in the Edmonton-Calgary Corridor, central Alberta. It represents the net-to-gross sandstone ratio distribution within the Paskapoo Formation - Upper Composite Slice of the Sylvan Lake sub-basin. The Upper Composite Slice is one of three distinct geological domains identified in the Paskapoo Formation of the Sylvan Lake sub-basin model. Characterization of net-to-gross sandstone ratio distribution within the Paskapoo Formation provides information about the geological heterogeneity and potential hydraulic connectivity within the formation for input into a groundwater flow model.

Last Updated: Dec. 10, 2020
Date Published: Jan. 1, 2015
Organization: Government of Alberta
Formats: HTML other
Keywords:  3d models, aquifers, boreholes, geology, gis data, hydrogeology, hydrostratigraphy, paskapoo formation, 82o
Provincial

This grid dataset is part of the three-dimensional (3-D) hydrostratigraphic model of the Sylvan Lake sub-basin in the Edmonton-Calgary Corridor, central Alberta. It represents the net-to-gross sandstone ratio distribution within the Paskapoo Formation - Middle Composite Slice of the Sylvan Lake sub-basin. The Middle Composite Slice is one of three distinct geological domains identified in the Paskapoo Formation of the Sylvan Lake sub-basin model. Characterization of net-to-gross sandstone ratio distribution within the Paskapoo Formation provides information about the geological heterogeneity and potential hydraulic connectivity within the formation for input into a groundwater flow model.

Last Updated: Dec. 10, 2020
Date Published: Jan. 1, 2015
Organization: Government of Alberta
Formats: HTML other
Keywords:  3d models, aquitard, boreholes, geology, gis data, hydrogeology, hydrostratigraphy, paskapoo formation, 82o
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