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The origin of two sand layers buried in Pololū wetland, on the northeast coast of the island of Hawai'i, was investigated using a multi-proxy approach, including radiometric dating, sedimentology, geochemistry, micropalaeontology, palynology and historical records. Based on 210 Pb, 137 Cs and pollen data, the lower sand unit extending 250 to 350m inland is attributed to the 1946 Aleutian...
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