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OFR 2010-10

Top of the Belly River Group in the Alberta Plains: Subsurface Stratigraphic Picks and Modelled Surface

Abstract: This report presents subsurface stratigraphic picks of the top of the Belly River Group in the Alberta Plains (Townships 1 to 50, Ranges 1W4 to 2W5) made from wireline geophysical well logs. Representative geophysical logs demonstrate the criteria used to make picks and to highlight regional geological variability. Well data were screened to detect errors resulting from deviated wells, as well as incorrect ground and kelly-bushing elevation data. Statistical methods identified local and regional statistical outliers, which were examined individually and either confirmed or removed. A structural contour map of the top of the Belly River Group is included to illustrate the regional structure. Areas of anomalous local structure were identified in several areas. Deviations from regional strike on the structure map, consistent with transverse faults, exist near Lethbridge, where the Monarch Fault Zone has been mapped. A bowl-shaped structural anomaly with a central uplift was identified near Bow City. The Bow City anomaly, which affects the Bearpaw Formation but has little surface expression, is broadly similar in shape and size to the Eagle Butte Impact Structure, located on the eastern flank of the Cypress Hills. Place Keywords 72e 72l 72m 73d 73e 82g 82h 82i 82j 82o 82p 83a 83b 83g 83h alberta alberta plains canada Theme Keywords bearpaw formation bedrock geology belly river group campanian dinosaur park formation geology lethbridge coal zone stratigraphic picks stratigraphy subsurface mapping upper cretaceous well log signature

Glombick, P.M.  2010-12-22

DIG 2009-0059

CBM Potential of the Alberta Plains - Calculated Gas In Place of the Lethbridge Coal Zone (GIS dataset)

CBM Potential of the Alberta Plains - Calculated Gas In Place of the Lethbridge Coal Zone (GIS dataset) Alberta Geological Survey created a coal and coalbed methane (CBM) database to capture and manage CBM data. The database compiles different ... Show Abstract

Berhane, H.  2009-07-22

DIG 2010-0022

Top of the Belly River Group in the Alberta Plains: Subsurface Stratigraphic Picks and Modelled Surface (tabular data, tab delimited format, to accompany Open File Report 2010-10)

Top of the Belly River Group in the Alberta Plains: Subsurface Stratigraphic Picks and Modelled Surface (tabular data, tab delimited format, to accompany Open File Report 2010-10) The dataset includes subsurface stratigraphic picks of the top of ... Show Abstract

Glombick, P.M.  2011-12-15

DIG 2009-0066

CBM Potential of the Alberta Plains - Vitrinite Reflectance of the Lethbridge Coal Zone (GIS dataset)

CBM Potential of the Alberta Plains - Vitrinite Reflectance of the Lethbridge Coal Zone (GIS dataset) Alberta Geological Survey created a coal and coalbed methane (CBM) database to capture and manage CBM data. The database compiles different ... Show Abstract

Berhane, H.  2009-07-22

DIG 2009-0025

CBM Potential of the Alberta Plains - Isopach of the Lethbridge Coal Zone (GIS dataset)

CBM Potential of the Alberta Plains - Isopach of the Lethbridge Coal Zone (GIS dataset) Alberta Geological Survey created a coal and coalbed methane (CBM) database to capture and manage CBM data. The database compiles different sources and ... Show Abstract

Berhane, H.  2009-07-21

DIG 2009-0033

CBM Potential of the Alberta Plains - Lethbridge Coal Zone Boundary (GIS dataset)

CBM Potential of the Alberta Plains - Lethbridge Coal Zone Boundary (GIS dataset) Coal zone boundary for the Lethbridge Coal Zone is based on subcrops generated by Alberta Geological Survey Special Report 007 (Regional Evaluation of the Coalbed ... Show Abstract

Berhane, H.  2009-07-21

DIG 2009-0046

CBM Potential of the Alberta Plains - Depth to Top of the Lethbridge Coal Zone (GIS dataset)

CBM Potential of the Alberta Plains - Depth to Top of the Lethbridge Coal Zone (GIS dataset) Alberta Geological Survey created a coal and coalbed methane (CBM) database to capture and manage CBM data. The database compiles different sources and ... Show Abstract

Berhane, H.  2010-03-25

DIG 2009-0040

CBM Potential of the Alberta Plains - Net Coal Thickness of the Lethbridge Coal Zone (GIS dataset)

CBM Potential of the Alberta Plains - Net Coal Thickness of the Lethbridge Coal Zone (GIS dataset) Alberta Geological Survey created a coal and coalbed methane (CBM) database to capture and manage CBM data. The database compiles different sources ... Show Abstract

Berhane, H.  2009-07-21

DIG 2009-0053

CBM Potential of the Alberta Plains - Calculated Gas Content of the Lethbridge Coal Zone (GIS dataset)

CBM Potential of the Alberta Plains - Calculated Gas Content of the Lethbridge Coal Zone (GIS dataset) Alberta Geological Survey created a coal and coalbed methane (CBM) database to capture and manage CBM data. The database compiles different ... Show Abstract

Berhane, H.  2010-03-25