The gravity signature of Caledonian and Variscan tectonics in Ireland

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doi: 10.1016/S0079-1946(97)00052-9
Authors:O'Reilly, B. M.; Readman, P. W.; Murphy, T.
Author Affiliations:Primary:
Dublin Institute of Advanced Studies, Dublin, Ireland
Volume Title:Geophysical studies of the continental lithosphere; density inhomogeneities in the crust and mantle and their relation to tectonics
Volume Authors:Götze, H. J., editor; Jacoby, W. R.
Source:Geophysical studies of the continental lithosphere; density inhomogeneities in the crust and mantle and their relation to tectonics, edited by H. J. Götze and W. R. Jacoby. Physics and Chemistry of the Earth, 21(4), p.299-304. Publisher: Pergamon, Oxford-New York-Toronto, International. ISSN: 0079-1946
Publication Date:1996
Note:In English. 18 refs.; illus.
Summary:A map of the vertical gradient of the Bouguer anomaly for Ireland is used to define crustal fabrics related to tectonic development. Several sets of linear features can be identified, including lineaments trending NE to NNE which can be correlated with mapped Caledonian trending fault systems and shear zones and related to an overall Caledonian plate tectonic setting. Gravity trends in the S of Ireland are clearly aligned in an E-W ('Variscan') direction. Features which can be resolved can be related to the known geological history of Ireland and placed in a regional context within the NE Atlantic and Europe using the marine free-air anomalies derived from satellite altimetry. [R.A.H.]
Subjects:Bouguer anomalies; Caledonian Orogeny; Geophysical methods; Geophysical surveys; Gravity anomalies; Gravity field; Gravity methods; Interpretation; Paleozoic; Surveys; Tectonics; Europe; Ireland; Variscides; Western Europe
Abstract Numbers:98M/1063
Record ID:1998006361
Copyright Information:GeoRef, Copyright 2019 American Geosciences Institute. Reference includes data from Mineralogical Abstracts, United Kingdom, Twickenham, United Kingdom
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