When this paper was first published, the U–Th dates in Tables A1, A2, and A3 were incorrect due to an error in converting dates into the units of “years Before Present” (in which “Present” represents January 1, 1950). This error affected the values listed under table headings that read, “Date Uncorrected (years Before Present)", “Date Corrected (years Before Present)", and “Weighted Mean Date (years Before Present)." The age-depth model has also been updated with this change. Since the difference between the incorrect and correct dates was on the order of ∼100 years, the errors did not impact the results and conclusions or figures and text appreciably to warrant any changes to the paper. The correct tables are printed below: [Table presented] [Table presented] [Table presented]