A drilling mud sump
, a large pit excavated in the frozen ground, was constructed at each site to dispose of drilling wastes, largely mixtures of salt, water, and drill cuttings of ground rock and soil (Serverson-Baker, 2004).
Point locations of drilling mud sumps (locations of buried drilling fluids and other waste from resource exploration) were obtained from the Environmental Studies Research Fund sumps database (INAC, 2005).
Environmental conditions and vegetation recovery at abandoned drilling mud sumps in the Mackenzie Delta region, Northwest Territories, Canada.
We assessed changes in vegetation composition and associated environmental gradients across seven drilling mud sumps in the Kendall Island Bird Sanctuary, Mackenzie Delta.
Key words: disturbance, drilling mud sumps, low Arctic tundra, Mackenzie River delta, oil and gas exploration, permafrost, plant communities, vegetation classification
Seven drilling mud sumps were selected for detailed investigation (Fig.