{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,14]],"date-time":"2026-05-14T18:02:57Z","timestamp":1778781777859,"version":"3.51.4"},"reference-count":22,"publisher":"Geological Society of London","issue":"1","license":[{"start":{"date-parts":[[1986,1,1]],"date-time":"1986-01-01T00:00:00Z","timestamp":504921600000},"content-version":"stm-asf","delay-in-days":0,"URL":"https:\/\/doi.org\/10.15223\/policy-002"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["SP"],"published-print":{"date-parts":[[1986,1]]},"abstract":"<jats:title>Summary<\/jats:title>\n          <jats:p>\n            Three separate observations, from sedimentary rock compositions, subduction zone igneous rocks and heat flow constraints combine to suggest that the composition of the Archaean crust was distinct from that of the present-day continental crust. The sedimentary REE patterns are consistent with derivation of the upper crust from a 1:1 mixture of the Archaean bimodal basic-felsic suite. The andesite model, while adequate to account for present-day continental growth does not provide enough Cr and Ni for the Archaean crust. Average crustal component heat flow values of 14 mW m\n            <jats:sup>\u22122<\/jats:sup>\n            for Archaean terrains are significantly lower than the post-Archaean average of 23 mW m\n            <jats:sup>\u22122<\/jats:sup>\n            for crustally produced heat.\n          <\/jats:p>\n          <jats:p>\n            Correlations from the sedimentary trace element data provide Archaean upper crustal values of 1.5% K, 5.7 ppm Th and 1.5 ppm U. Heat flow constraints restrict such compositions to the upper layers. The total crustal values are consistent with a 2:1 basic\/felsic composition, and give values for the total crust of 0.75% K, 2.9 ppm Th and 0.75 ppm U, which provide crustal heat flow components of 14 mW m\n            <jats:sup>\u22122<\/jats:sup>\n            for a 30 km thick crust and 19 mW m\n            <jats:sup>\u22122<\/jats:sup>\n            for a 40 km crust.\n          <\/jats:p>","DOI":"10.1144\/gsl.sp.1986.024.01.16","type":"journal-article","created":{"date-parts":[[2008,4,30]],"date-time":"2008-04-30T18:15:03Z","timestamp":1209579303000},"page":"173-178","source":"Crossref","is-referenced-by-count":26,"title":["The chemical composition of the Archaean crust"],"prefix":"10.1144","volume":"24","author":[{"given":"S. R.","family":"Taylor","sequence":"first","affiliation":[{"name":"Research School of Earth Sciences, Australian National University\rCanberra, ACT, Australia. 2601"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"S.M.","family":"McLennan","sequence":"additional","affiliation":[{"name":"Research School of Earth Sciences, Australian National University\rCanberra, ACT, Australia. 2601"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1881","published-online":{"date-parts":[[1986,1]]},"reference":[{"key":"e_1_2_1_2_1","volume-title":"Proc. Eclogite Symposium","author":"Arculus R.J.","year":"1984","unstructured":"Arculus R.J. , et al. Eclogites and granulites in the lower continental crust: Examples from eastern Australia and southwestern U.S.A. 1984 Proc. 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Evolution and subsidence of early Precambrian sedimentary basins Phil. Trans. Roy. Soc. 1982 A 305 225 247","journal-title":"Phil. Trans. Roy. Soc."},{"key":"e_1_2_1_6_1","volume-title":"Evolution of Sedimentary Rocks","author":"Garrels R.M.","year":"1971","unstructured":"Garrels R.M., Mackenzie F.T. Evolution of Sedimentary Rocks 1971 London Norton"},{"key":"e_1_2_1_7_1","doi-asserted-by":"publisher","DOI":"10.1007\/BF00378102"},{"key":"e_1_2_1_8_1","doi-asserted-by":"publisher","DOI":"10.1126\/science.200.4345.1003"},{"key":"e_1_2_1_9_1","first-page":"889","article-title":"Petrological characteristics of Archean graywackes","volume":"54","author":"McLennan S.M.","year":"1984","unstructured":"McLennan S.M. Petrological characteristics of Archean graywackes J. Sed. Pet. 1984 54 889 898","journal-title":"J. Sed. 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Taylor S.R.\nGeochemical constraints on the origin of Archaean tonalitictrondhjemitic rocks and implications for lower crustal composition\n1986\n(This volume)","DOI":"10.1144\/GSL.SP.1986.024.01.17"},{"key":"e_1_2_1_17_1","doi-asserted-by":"publisher","DOI":"10.1029\/RG018i001p00269"},{"key":"e_1_2_1_18_1","doi-asserted-by":"publisher","DOI":"10.1016\/0040-1951(67)90056-X"},{"key":"e_1_2_1_19_1","doi-asserted-by":"publisher","DOI":"10.1029\/ME001p0325"},{"key":"e_1_2_1_20_1","first-page":"255","article-title":"Evidence from rare-earth elements for the chemical composition of the Archean crust","volume":"7","author":"Taylor S.R.","year":"1981","unstructured":"Taylor S.R., McLennan S.M. Evidence from rare-earth elements for the chemical composition of the Archean crust Geol. Soc. Aust. Spec. Pub. 1981 7 255 261","journal-title":"Geol. Soc. Aust. Spec. 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