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Significant shifts in \u03b4\n            <jats:sup>18<\/jats:sup>\n            O and \u03b4\n            <jats:sup>13<\/jats:sup>\n            C isotopic values coincide with well-documented Holocene vegetation changes. Temperature estimates based on\n            <jats:sup>18<\/jats:sup>\n            O\/\n            <jats:sup>16<\/jats:sup>\n            O ratios suggest that the climate warmed rapidly by about 3\u03b4C at 5900 years before present and then cooled by 4\u03b4C at 3600 years before present. Initiation of a gradual increase in \u03b4\n            <jats:sup>13<\/jats:sup>\n            C at 5900 years before present suggests that turnover of the forest soil biomass was slow and that equilibrium with prairie vegetation was not attained by 3600 years before present.\n          <\/jats:p>","DOI":"10.1126\/science.258.5088.1626","type":"journal-article","created":{"date-parts":[[2006,10,5]],"date-time":"2006-10-05T23:03:06Z","timestamp":1160089386000},"page":"1626-1630","source":"Crossref","is-referenced-by-count":252,"title":["A High-Resolution Record of Holocene Climate Change in Speleothem Calcite from Cold Water Cave, Northeast Iowa"],"prefix":"10.1126","volume":"258","author":[{"given":"Jeffrey A.","family":"Dorale","sequence":"first","affiliation":[{"name":"Department of Geology, University of Iowa, Iowa City, IA 52242"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Luis A.","family":"Gonz\u00e1lez","sequence":"additional","affiliation":[{"name":"Department of Geology and Center for Global and Regional Environmental Research, University of Iowa, Iowa City, IA 52242"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Mark K.","family":"Reagan","sequence":"additional","affiliation":[{"name":"Department of Geology and Center for Global and Regional Environmental Research, University of Iowa, Iowa City, IA 52242"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"David A.","family":"Pickett","sequence":"additional","affiliation":[{"name":"Isotope Sciences Group, Los Alamos National Laboratory, Los Alamos, NM 87545"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Michael T.","family":"Murrell","sequence":"additional","affiliation":[{"name":"Isotope Sciences Group, Los Alamos National Laboratory, Los Alamos, NM 87545"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Richard G.","family":"Baker","sequence":"additional","affiliation":[{"name":"Department of Geology and Center for Global and Regional Environmental Research, University of Iowa, Iowa City, IA 52242"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"221","reference":[{"key":"e_1_2_1_1_1","first-page":"167","volume":"97","year":"1990","unstructured":"BAKER, R. 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