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dc.contributor.authorBinns, Paul Edwarden
dc.date.accessioned2018-01-31T11:43:13Z
dc.date.available2018-01-31T11:43:13Z
dc.date.issued1975en
dc.identifier.urihttp://hdl.handle.net/1842/27977
dc.description.abstracten
dc.description.abstractOffshore shallow seismic, bathymetric and geological surveys are interpreted and, together with other geophysical data and onshore geology, used to produce a description of Quaternary and Pre -Quaternary geology. An attempt is then made to trace the geological evolution of the Sea of the Hebrides from the Late Palaeozoic to the present.en
dc.description.abstractA major unconformity separates consolidated Pre -Quaternary rocks from unconsolidated Quaternary sediment. The Pre - Quaternary geology is controlled by three principal north -easterly faults which form the western margin of asymmetric troughs floored by Pre -Cambrian and probably Palaeozoic rocks and filled with Permo- Triassic to Cretaceous sediments. A third asymmetric trough has been detected on the outer continental shelf.en
dc.description.abstractTertiary igneous activity and north -westerly faulting are important secondary controls on the geology.en
dc.description.abstractThe Pre -Quaternary unconformity on the inner continental shelf has a characteristically glaciated morphology and patterns of ice movement can be deduced.en
dc.description.abstractQuaternary sequence, locally exceeding 250m in thickness, is divided into four sedimentary formations. These are interpreted as glacial moraine, glacial- marine sediment, peri- glacial marine sediment and modern sediment. The sequence was deposited diachronously by the retreating ice of the last (Devensian) ice sheet. Concentration of glacial- marine sediment along the paths of major ice -sheets is considered to be responsible for the major variations in Quaternary sediment thickness. The complex morphology of the present sea floor reflects the Pre -Quaternary geology, glacial sedimentation and the present marine regime.en
dc.description.abstractThe complexity of the geology is such that this study must be regarded as a first reconnaissance.en
dc.publisherThe University of Edinburghen
dc.relation.isreferencedbyen
dc.subjectAnnexe Thesis Digitisation Project 2017 Block 16en
dc.titleGeology of the sea of the Hebridesen
dc.typeThesis or Dissertationen
dc.type.qualificationlevelen
dc.type.qualificationnamePhD Doctor of Philosophyen


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