Sedimentology and Stratigraphy of the Lower Cretaceous Viking Formation, Chigwell Field, Albert, Canada

Abstract

<p>Ongoing regional studies of the Viking Formation (Upper Albian Stage, Lower Cretaceous) have revealed four regionally extensive erosional bounding surfaces within the interval. Examination of twenty-seven Viking cores from the Chigwell field allowed the nature of the erosional surfaces to be investigated. The examination of cores also permitted the sequences of sediments between the erosional bounding surfaces to be documented. Once documented in a series of well log and core cross sections, an attempt to interpret the nature and morphology of the erosional surfaces and the sediments they envelope was made.</p> <p>The development of the erosion surfaces is problematic. It is suggested here that relative sea level fluctuations played a major role in the formation of both the erosion surfaces and the sediments found at Chigwell.</p>