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doi:10.2204/iodp.proc.341.106.2014 Stratigraphic correlationBecause only a single hole was drilled/cored at Site U1420, no stratigraphic correlation was performed at this site. Initial age modelThe shipboard paleomagnetic and biostratigraphic age datums are insufficient for the construction of a detailed initial shipboard age model (see “Paleomagnetism” and “Paleontology and biostratigraphy”). The biostratigraphy indicates that the cored sediments are in modern biozones and the recovered cores are all normal magnetic polarity. Because the Matuyama/Brunhes geomagnetic polarity boundary was not observed, we can conclude that the entire sedimentary sequence recovered at Site U1420 is younger than 0.781 Ma. |
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