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Ridge J.C., Balco G., Bayless R.L., Beck C.C., Carter L.B., Dean J.L., et al. 2012. The new North American Varve chronology: a precise record of southeastern Laurentide ice sheet deglaciation and climate, 18.2–12.5 kyr bp, and correlations with Greenland Ice Core records. American Journal of Science, 312: 685–722.
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