19840301: A revised seismic B O W stratigraphy for Quaternary deposits on the inner continental shelf west of Scotland between SS"30'N and 57"30'N. Boreus, Vol. 13, pp. 4'+66. Oslo. ISSN 0300-9483.A stratigraphy for Quaternary deposits o n the western Scottish shelf bas been erected using seismic and borehole data. Eight new formations are defined and described with evidence presented for the environment of deposition of each formation. Most of the Quaternary sediments preserved on the shelf arc shown to have accumulated under stadia1 or glacial conditions. The possible age of each formation is discussed within the context of evidence provided from the mainland. shelf and dcep-sea cores. Two are thought to be pre-Devensian. one is possibly pre-Devcnsian. one is possibly Early and/or Middle Devensian. two are probably Late Devensian. one is Latc Devensian to Holocene and one Present day in age. It is suggested that the Late Devensian ice reached the shelf margin south of the Outer Hebridean Platform.