Regional subsurface correlations of Albian sequences north of the Peace River in northeastern British Columbia: Northward extent of Falher and Notikewin sands along the eastern flank of the foredeep.

摘要

The highly explored Peace River Region and Elmworth Deep Gas Basin has yielded a large database of geophysical wireline well logs and cores. Recent exploration and research within the Trutch, Fort Nelson and the Liard Basin regions are providing a growing database of geological information, allowing for reliable correlation between these two regions, filling the gap between 55.5° N and 58° N. In northeastern British Columbia and northwestern Alberta, four major phases of marine inundation can be regionally traced outlining their resulting geometries in relation to the western foredeep. These are in ascending order, the Moosebar/Clearwater Sea, Hulcross/Harmon Sea, Joli Fou Seaway, and Mowry Sea. An organic-rich, marginal marine shale that is topping the Paddy transgressive valley fill succession appears to extend northward along the shallow margin of the foredeep. The equivalent Viking marker bed in the foredeep can only be detected by a subtle resistivity change. (Abstract shortened by UMI.)