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Tectonic loading, sedimentation, and sea‐level changes in the foreland basin of north‐west Alberta and north‐east British Columbia, Canada
Author(s) -
Underschultz J. R.
Publication year - 1991
Publication title -
basin research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.522
H-Index - 83
eISSN - 1365-2117
pISSN - 0950-091X
DOI - 10.1111/j.1365-2117.1991.tb00125.x
Subject(s) - foreland basin , geology , tectonics , sedimentation , structural basin , oceanography , palaeogeography , paleontology , volcanism , sediment
By calculating mass accumulation rates for foreland basin sediments, the changing capacity of the basin can be monitored through time. It has often been assumed that there was a direct link between foreland basin sedimentation and tectonic deformation and lithospheric loading in the adjacent orogenic belt. The results of this study suggest that tectonic deformation is most likely associated with the changing capacity of the basin and the rate at which sediments accumulate within it, However, there appears to be no relation between tectonic deformation and the lithology of sediment which accumulates in the foreland basin. Instead, eustatic sea‐level fluctuations appear to have significant control, through their impact on water depth, on the lithology of sediments accumulating in the foreland basin. These relations are evidenced by mass accumulation rates calculated for foreland basin strata in north‐west Alberta and north‐east British Columbia, Canada.