Biogenic and detrital-rich intervals in central Arctic Ocean cores identified using x-ray fluorescence scanning

X-ray fluorescence (XRF) scanning of sediment cores from the Lomonosov Ridge and the Morris Jesup Rise reveals a distinct pattern of Ca intensity peaks through Marine Isotope Stages (MIS) 1 to 7.Downcore of MIS 7, the Ca signal is more irregular and near the detection limit.Virtually all major peaks in Ca coincide with a high abundance of calcareou

read more