{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2024,11,20]],"date-time":"2024-11-20T05:34:00Z","timestamp":1732080840171,"version":"3.28.0"},"reference-count":23,"publisher":"Geological Society of London","issue":"4","license":[{"start":{"date-parts":[[1976,12,1]],"date-time":"1976-12-01T00:00:00Z","timestamp":218246400000},"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":[[1976,12]]},"abstract":"<jats:title>Synopsis<\/jats:title>\n          <jats:p>Sixteen reversed seismic refraction profiles, each 1 km long, in Sutherland between Kylesku and Durness have demonstrated a difference in P-wave velocity between the northern and central belts of the mainland outcrop of the early Precambrian Lewisian rocks. The variably-retrogressed pyroxene granulites of the central belt (of andesitic-dioritic composition) yielded a velocity of 6.34 \u00b1 0.17 km\/s (6 observations); the quartzo-feldspathic gneisses of the northern belt yielded a velocity of 5.64 \u00b1 0.18 km\/s (6 observations); the rocks of the boundary region, near the Ben Stack line, yielded a velocity of 5.28 \u00b1 0.23 km\/s (4 observations). Correlations are made with the velocity layering of crustal models derived for the area, confirming the wide occurrence in the upper crust of granulite-facies rocks. Such high values of velocity in surface rocks place strict limits on velocity gradients in such rock types in the deeper continental crust.<\/jats:p>","DOI":"10.1144\/sjg12040305","type":"journal-article","created":{"date-parts":[[2010,1,15]],"date-time":"2010-01-15T00:29:39Z","timestamp":1263515379000},"page":"305-314","update-policy":"http:\/\/dx.doi.org\/10.1144\/crossmark-policy","source":"Crossref","is-referenced-by-count":16,"title":["Seismic velocities in the Lewisian metamorphic complex, northwest Britain\u2014\u2018in situ\u2019 measurements"],"prefix":"10.1144","volume":"12","author":[{"given":"J.","family":"Hall","sequence":"first","affiliation":[{"name":"Department of Geology, University of Glasgow"}]},{"given":"F. M.","family":"Al-Haddad","sequence":"additional","affiliation":[{"name":"Department of Geology, University of Glasgow"}]}],"member":"1881","published-online":{"date-parts":[[2022,6,7]]},"reference":[{"key":"e_1_2_1_2_1","first-page":"329","volume-title":"Physical Acoustics IVB","author":"ANDERSON O. L.","year":"1968","unstructured":"ANDERSON O. L., LIEBERMANN R. C. 1968. Sound velocities in rocks and minerals: experimental methods, extrapolations to very high pressures, and results. In , Mason W. P. (ed.), Physical Acoustics IVB. 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The Lewisian of Northwest Highlands of Scotland. In , Kay M. (ed.) Mem. Am. Ass. Petrol. Geol. 12, 575\u201394."},{"key":"e_1_2_1_10_1","first-page":"77","article-title":"Original nature of Archaean rocks of West Scotland","volume":"3","author":"BOWES D. R.","year":"1971","unstructured":"BOWES D. R., BAROOAH B. C., KHOURY S. A. 1971. Original nature of Archaean rocks of West Scotland. Spec. Publ. geol. Soc. Aust. 3, 77\u201392.","journal-title":"Spec. Publ. geol. Soc. Aust"},{"key":"e_1_2_1_11_1","doi-asserted-by":"publisher","DOI":"10.1016\/S0016-7878(74)80069-6"},{"key":"e_1_2_1_12_1","doi-asserted-by":"publisher","DOI":"10.1144\/sjg05040347"},{"key":"e_1_2_1_13_1","first-page":"63","article-title":"Structural and metamorphic history of the Lewisian gneiss around Loch Laxford, Sutherland, Scotland","author":"GILLEN C.","year":"1975","unstructured":"GILLEN C. 1975. Structural and metamorphic history of the Lewisian gneiss around Loch Laxford, Sutherland, Scotland. Krystalinikum II, 63\u201385.","journal-title":"Krystalinikum"},{"key":"e_1_2_1_14_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1365-2478.1959.tb01460.x"},{"key":"e_1_2_1_15_1","first-page":"51","volume-title":"The Lewisian of Scotland and related rocks of Greenland","author":"HOLLAND J. G.","year":"1973","unstructured":"HOLLAND J. G., LAMBERT R. St. J. 1973. Comparative major element geochemistry of the Lewisian of the mainland of Scotland. In , Park R. G., Tarney J. (eds), The Lewisian of Scotland and related rocks of Greenland. Keele, 51\u201362."},{"key":"e_1_2_1_16_1","doi-asserted-by":"publisher","DOI":"10.1016\/0012-821X(69)90164-2"},{"key":"e_1_2_1_17_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., GREEN W., CLOUGH C. T., HINXMAN L. W., TEALLJ J. 1907. The geological structure of the North-West Highlands of Scotland. Mem. geol. Surv. 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Keele, 13\u201330."},{"key":"e_1_2_1_21_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1365-246X.1975.tb07046.x"},{"key":"e_1_2_1_22_1","doi-asserted-by":"publisher","DOI":"10.1016\/0012-821X(75)90026-6"},{"key":"e_1_2_1_23_1","doi-asserted-by":"publisher","DOI":"10.1144\/GSL.JGS.1950.106.01-04.16"},{"key":"e_1_2_1_24_1","doi-asserted-by":"publisher","DOI":"10.1017\/S0080456800012412"}],"container-title":["Scottish Journal of Geology"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.lyellcollection.org\/doi\/pdf\/10.1144\/sjg12040305","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2024,11,19]],"date-time":"2024-11-19T16:59:53Z","timestamp":1732035593000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.lyellcollection.org\/doi\/10.1144\/sjg12040305"},"secondary":[{"URL":"https:\/\/geoscienceworld.org\/sjg\/article-lookup?doi=10.1144\/sjg12040305","label":"geoscienceworld"}]},"subtitle":[],"short-title":[],"issued":{"date-parts":[[1976,12]]},"references-count":23,"journal-issue":{"issue":"4","published-online":{"date-parts":[[2009,11,10]]},"published-print":{"date-parts":[[1976,12]]}},"alternative-id":["10.1144\/sjg12040305"],"URL":"https:\/\/doi.org\/10.1144\/sjg12040305","relation":{},"ISSN":["0036-9276","2041-4951"],"issn-type":[{"type":"print","value":"0036-9276"},{"type":"electronic","value":"2041-4951"}],"subject":[],"published":{"date-parts":[[1976,12]]},"assertion":[{"value":"1976-09-13","order":2,"name":"accepted","label":"Accepted","group":{"name":"publication_history","label":"Publication History"}},{"value":"2022-06-07","order":3,"name":"published","label":"Published","group":{"name":"publication_history","label":"Publication History"}}]}}