{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,18]],"date-time":"2026-05-18T16:13:20Z","timestamp":1779120800901,"version":"3.51.4"},"reference-count":5,"publisher":"Springer Science and Business Media LLC","issue":"7142","license":[{"start":{"date-parts":[[2007,5,16]],"date-time":"2007-05-16T00:00:00Z","timestamp":1179273600000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/www.springernature.com\/gp\/researchers\/text-and-data-mining"},{"start":{"date-parts":[[2007,5,16]],"date-time":"2007-05-16T00:00:00Z","timestamp":1179273600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/www.springernature.com\/gp\/researchers\/text-and-data-mining"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Nature"],"published-print":{"date-parts":[[2007,5,17]]},"DOI":"10.1038\/447256a","type":"journal-article","created":{"date-parts":[[2007,5,16]],"date-time":"2007-05-16T17:14:22Z","timestamp":1179335662000},"page":"256-257","source":"Crossref","is-referenced-by-count":6,"title":["Blast in the past?"],"prefix":"10.1038","volume":"447","author":[{"given":"Rex","family":"Dalton","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"297","published-online":{"date-parts":[[2007,5,16]]},"reference":[{"key":"BF447256a_CR1","doi-asserted-by":"publisher","first-page":"1122","DOI":"10.1126\/science.1137166","volume":"315","author":"MR Waters","year":"2007","unstructured":"Waters, M. R. & Stafford, T. W. Science 315, 1122\u20131126 (2007).","journal-title":"Science"},{"key":"BF447256a_CR2","doi-asserted-by":"publisher","first-page":"341","DOI":"10.1006\/qres.1995.1079","volume":"44","author":"M Stuiver","year":"1995","unstructured":"Stuiver, M., Grootes, P. M. & Braziunas, T. F. Quatern. Res. 44, 341\u2013354 (1995).","journal-title":"Quatern. Res."},{"key":"BF447256a_CR3","doi-asserted-by":"publisher","first-page":"1146","DOI":"10.1126\/science.1123253","volume":"312","author":"WS Broecker","year":"2006","unstructured":"Broecker, W. S. Science 312, 1146\u20131148 (2006).","journal-title":"Science"},{"key":"BF447256a_CR4","first-page":"9","volume":"16(2)","author":"RB Firestone","year":"2001","unstructured":"Firestone, R. B. & Topping, W. Mammoth Trumpet 16(2), 9\u201316 (2001).","journal-title":"Mammoth Trumpet"},{"key":"BF447256a_CR5","doi-asserted-by":"publisher","first-page":"1027","DOI":"10.1038\/4311027a","volume":"431","author":"R Dalton","year":"2004","unstructured":"Dalton, R. Nature 431, 1027 (2004).","journal-title":"Nature"}],"container-title":["Nature"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.nature.com\/articles\/447256a","content-type":"text\/html","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/www.nature.com\/articles\/447256a.pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/www.nature.com\/articles\/447256a.pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,4,4]],"date-time":"2025-04-04T03:09:56Z","timestamp":1743736196000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.nature.com\/articles\/447256a"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2007,5,16]]},"references-count":5,"journal-issue":{"issue":"7142","published-print":{"date-parts":[[2007,5,17]]}},"alternative-id":["BF447256a"],"URL":"https:\/\/doi.org\/10.1038\/447256a","relation":{},"ISSN":["0028-0836","1476-4687"],"issn-type":[{"value":"0028-0836","type":"print"},{"value":"1476-4687","type":"electronic"}],"subject":[],"published":{"date-parts":[[2007,5,16]]}}}