{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,4]],"date-time":"2025-10-04T14:40:14Z","timestamp":1759588814514,"version":"3.28.0"},"reference-count":25,"publisher":"Geological Society of London","issue":"4","license":[{"start":{"date-parts":[[1974,2,1]],"date-time":"1974-02-01T00:00:00Z","timestamp":128908800000},"content-version":"stm-asf","delay-in-days":0,"URL":"https:\/\/doi.org\/10.15223\/policy-002"}],"content-domain":{"domain":["www.lyellcollection.org"],"crossmark-restriction":true},"short-container-title":["SJG"],"published-print":{"date-parts":[[1974,2]]},"abstract":"<jats:title>Synopsis<\/jats:title>\n          <jats:p>The Laxford Front is a zone of complex rotational deformation which separates intensely deformed Laxfordian migmatites from heterogeneously deformed pyroxene granulites. The dominant sense of movement shown by shear zones is sinistral and north side upwards, implying that the migmatites were moving upwards from beneath the Scourian granulites.<\/jats:p>\n          <jats:p>The main rock types are, from south to north: a zone of relatively undeformed pyroxene granulite; a zone of regularly folded amphibolite facies gneisses with metagabbro-anorthosites and metasediments; a planar zone of granite sheets, and a zone of migmatites.<\/jats:p>\n          <jats:p>\n            The post granulite facies structural history of the Laxford Front can be adequately described in terms of three phases (\n            <jats:italic>F<\/jats:italic>\n            <jats:sub>1<\/jats:sub>\n            to\n            <jats:italic>F<\/jats:italic>\n            <jats:sub>3<\/jats:sub>\n            ) of deformation. The first and second phases are separated by a phase of dyke intrusion, the \u2018Scourie dykes\u2019. The Scourian zone of granulites acted as a competent body throughout each phase of deformation, though the southern limit of ductile deformation occupied a more northerly position for each successive phase. A model for the\n            <jats:italic>F<\/jats:italic>\n            <jats:sub>2<\/jats:sub>\n            strain trajectories is proposed.\n          <\/jats:p>\n          <jats:p>\n            There is no evidence to indicate that the migmatites were folded into a basement of pyroxene granulites as suggested by Bowes (1962) and Holland (1966). The Laxfordian migmatites were on the same tectonic level as, or possibly lower than, the Scourian granulites prior to the\n            <jats:italic>F<\/jats:italic>\n            <jats:sub>1<\/jats:sub>\n            deformation.\n          <\/jats:p>","DOI":"10.1144\/sjg09040297","type":"journal-article","created":{"date-parts":[[2010,1,15]],"date-time":"2010-01-15T00:29:39Z","timestamp":1263515379000},"page":"297-308","update-policy":"http:\/\/dx.doi.org\/10.1144\/crossmark-policy","source":"Crossref","is-referenced-by-count":50,"title":["An interpretation of the structural evolution of the Laxford Front, north-west Scotland"],"prefix":"10.1144","volume":"9","author":[{"given":"A.","family":"Beach","sequence":"first","affiliation":[{"name":"Department of Geology, University of Liverpool"}]},{"given":"M. P.","family":"Coward","sequence":"additional","affiliation":[{"name":"Department of Earth Sciences, University of Leeds"}]},{"given":"R. H.","family":"Graham","sequence":"additional","affiliation":[{"name":"Department of Geology, University College, Swansea"}]}],"member":"1881","published-online":{"date-parts":[[2022,6,7]]},"reference":[{"key":"e_1_2_1_2_1","unstructured":"BEACH A. 1971. The relation between metamorphic reactions and tectonic structure at Scourie Sutherland: a study of regeneration. Univ. of London. Ph.D. thesis (unpubl.)."},{"key":"e_1_2_1_3_1","doi-asserted-by":"publisher","DOI":"10.1144\/gsjgs.128.6.0599"},{"key":"e_1_2_1_4_1","first-page":"28","article-title":"Symposium on depth and tectonics as factors in regional metamorphism","volume":"1594","author":"BOWES D. R.","year":"1962","unstructured":"BOWES D. R. 1962. In Symposium on depth and tectonics as factors in regional metamorphism. Proc. geol. Soc. 1594, 28\u201330.","journal-title":"Proc. geol. Soc"},{"key":"e_1_2_1_5_1","first-page":"575","volume-title":"Mem. Am. Ass. Petrol. Geol","author":"BOWES D. R.","year":"1969","unstructured":"BOWES D. R. 1969. The Lewisian of the North West Highlands of Scotland. In , Kay M. (ed.), North Atlantic geology and continental drift. Mem. Am. Ass. Petrol. Geol. 12, 575\u2013594."},{"key":"e_1_2_1_6_1","doi-asserted-by":"publisher","DOI":"10.1144\/sjg01030295"},{"key":"e_1_2_1_7_1","unstructured":"CHOWDHARY P. K. 1969. Geology of the Lewisian rocks south of Loch Inchard Sutherland. Univ. of Glasgow. Ph.D. thesis (unpubl.)."},{"key":"e_1_2_1_8_1","doi-asserted-by":"publisher","DOI":"10.1144\/sjg07010001"},{"key":"e_1_2_1_9_1","doi-asserted-by":"publisher","DOI":"10.1016\/S0016-7878(69)80030-1"},{"key":"e_1_2_1_10_1","doi-asserted-by":"publisher","DOI":"10.1144\/sjg05040347"},{"key":"e_1_2_1_11_1","doi-asserted-by":"publisher","DOI":"10.1017\/S0080456800018056"},{"key":"e_1_2_1_12_1","first-page":"6","article-title":"In discussion after Sutton and Watson (1951)","volume":"10","author":"DAVIDSON C. F.","year":"1951","unstructured":"DAVIDSON C. F. 1951. In discussion after Sutton and Watson (1951). Q. Jl geol. Soc. Lond. 106.","journal-title":"Q. Jl geol. Soc. Lond"},{"key":"e_1_2_1_13_1","doi-asserted-by":"publisher","DOI":"10.1038\/207054a0"},{"key":"e_1_2_1_14_1","doi-asserted-by":"publisher","DOI":"10.1144\/gsjgs.117.1.0233"},{"key":"e_1_2_1_15_1","unstructured":"HOLLAND J. G. 1966. Geochemical studies in the Lewisian. Univ of Oxford. D. Phil. thesis (unpubl.)."},{"key":"e_1_2_1_16_1","unstructured":"HOLLAND J. G. LAMBERT R. St. J. 1973. Comparative geochemistry of the mainland Lewisian. In Park R. G. Tarney J. (eds). The early Precambrian of Scotland and related rocks of Greenland. Keele. 51\u201362."},{"key":"e_1_2_1_17_1","doi-asserted-by":"publisher","DOI":"10.1144\/gsjgs.128.1.0003"},{"key":"e_1_2_1_18_1","doi-asserted-by":"publisher","DOI":"10.1016\/0012-821X(69)90164-2"},{"key":"e_1_2_1_19_1","doi-asserted-by":"publisher","DOI":"10.1144\/sjg06040379"},{"key":"e_1_2_1_20_1","first-page":"238","article-title":"Basic dykes in the early Precambrian of N. W. Scotland: their structural relations, conditions of emplacement and orogenic significance","volume":"1","author":"PARK R. G.","year":"1972","unstructured":"PARK R. G., CRESSWELL D. 1972. Basic dykes in the early Precambrian of N. W. Scotland: their structural relations, conditions of emplacement and orogenic significance. 24th Int. Geol. Congr. 1, 238\u2013245.","journal-title":"24th Int. Geol. Congr"},{"key":"e_1_2_1_21_1","unstructured":"PARK R. G. CRESSWELL D. 1973. The dykes in the Laxfordian belts. In Park R. G. Tarney J. (eds.). The early Precambrian of Scotland and related rocks of Greenland. Keele. 119\u2013130."},{"key":"e_1_2_1_22_1","article-title":"The geological structure of the north west highlands of Scotland","author":"PEACH B. N.","year":"1907","unstructured":"PEACH B. N., HORNE J., GUNN W., CLOUGH C. T., HINXMAN L. W., TEALL J. J. H. 1907. The geological structure of the north west highlands of Scotland. Mem. geol. Surv. U.K.","journal-title":"Mem. geol. Surv. U.K."},{"key":"e_1_2_1_23_1","doi-asserted-by":"publisher","DOI":"10.1139\/e70-078"},{"key":"e_1_2_1_24_1","first-page":"251","article-title":"The pre-Torridonian metamorphic history of the Loch Torridon and Scourie areas in the north west highlands of Scotland, and its bearing on the chronological classification of the Lewisian","volume":"106","author":"SUTTON J.","year":"1951","unstructured":"SUTTON J., WATSON J. V. 1951. 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