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Identifiable bedrock sources have made local contributions to the detrital zircon populations, but the dominant zircon components are of regional distribution: late Mesoproterozoic (\u03b5<jats:sub>Hf<\/jats:sub>\u2009=\u2009\u20135 to +10), Neoproterozoic to early Palaeozoic (\u03b5<jats:sub>Hf<\/jats:sub>\u2009=\u2009\u201310 to +10), and minor late Palaeozoic (\u03b5<jats:sub>Hf<\/jats:sub>\u2009\u2248\u20090). Archaean zircons are scarce even in sediments deposited on exposed Archaean basement or by rivers eroding it. The dominant components cannot be tied to specific first-generation sources in southern Africa or its former Gondwana neighbours. Instead, we see the effect of mixing and remobilization of debris from large parts of the supercontinent in the early Phanerozoic, which was stored in the Karoo basin and other continental cover sequences and shed from there to the present site of deposition. Therefore, data from detrital zircon in these deposits tell us less about the path of detritus from source to sink in a recent sedimentary system than about processes in much earlier erosion\u2013transport\u2013deposition cycles. To facilitate comparison of detrital zircon age distribution patterns, a simple and intuitive method that takes sampling uncertainty explicitly into account is proposed.<\/jats:p><jats:sec><jats:title>Supplementary materials:<\/jats:title><jats:p>U\u2013Pb and Lu\u2013Hf data, and concordia diagrams and discussion of effects of discordance are available at<jats:ext-link xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\" ext-link-type=\"uri\" xlink:href=\"http:\/\/www.geolsoc.org.uk\/SUP18884\">http:\/\/www.geolsoc.org.uk\/SUP18884<\/jats:ext-link>.<\/jats:p><\/jats:sec>","DOI":"10.1144\/jgs2015-006","type":"journal-article","created":{"date-parts":[[2015,10,28]],"date-time":"2015-10-28T03:08:24Z","timestamp":1446001704000},"page":"337-351","source":"Crossref","is-referenced-by-count":50,"title":["U\u2013Pb and Lu\u2013Hf zircon data in young sediments reflect sedimentary recycling in eastern South Africa"],"prefix":"10.1144","volume":"173","author":[{"given":"Tom","family":"Andersen","sequence":"first","affiliation":[{"name":"Department of Geosciences, University of Oslo, PO Box 1047 Blindern, N-0316 Oslo, Norway"},{"name":"Department of Geology, University of Johannesburg, PO Box 524 Auckland Park, 2006 Johannesburg, South Africa"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Marlina","family":"Elburg","sequence":"additional","affiliation":[{"name":"Department of Geology, University of Johannesburg, PO Box 524 Auckland Park, 2006 Johannesburg, South Africa"},{"name":"Discipline of Geological Sciences, SAEES, University of KwaZulu-Natal, Westville, South Africa"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Anton","family":"Cawthorn-Blazeby","sequence":"additional","affiliation":[{"name":"Discipline of Geological Sciences, SAEES, University of KwaZulu-Natal, Westville, South Africa"},{"name":"Richards Bay Minerals, PO Box 401, 3900 Richards Bay, South Africa"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1881","published-online":{"date-parts":[[2015,10,27]]},"reference":[{"key":"e_1_3_2_2_1","doi-asserted-by":"publisher","DOI":"10.1080\/03610919008812843"},{"key":"e_1_3_2_3_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.chemgeo.2004.11.013"},{"key":"e_1_3_2_4_1","doi-asserted-by":"publisher","DOI":"10.1017\/S0016756812000623"},{"key":"e_1_3_2_5_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.precamres.2013.10.013"},{"key":"e_1_3_2_6_1","doi-asserted-by":"crossref","unstructured":"Andersen T. 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