Publication Date:
2023-07-10
Description:
An Ir anomaly of 61 ng/cm**2 was found in Deep Sea Drilling Project Hole 577B at the same stratigraphic level as the Cretaceous/Tertiary boundary defined by nannoplankton. This close correspondence supports the asteroid-impact theory for the Cretaceous/Tertiary boundary extinctions.
Keywords:
86-577B; Aluminium; Aluminium, standard deviation; Antimony; Antimony, standard deviation; Barium; Barium, standard deviation; Calcium; Calcium, standard deviation; Cerium; Cerium, standard deviation; Chromium; Chromium, standard deviation; Cobalt; Cobalt, standard deviation; Deep Sea Drilling Project; DRILL; Drilling/drill rig; DSDP; DSDP/ODP/IODP sample designation; Dysprosium; Dysprosium, standard deviation; Element analysis, neutron activation (NAA); Europium; Europium, standard deviation; Glomar Challenger; Hafnium; Hafnium, standard deviation; Iridium; Iridium, standard deviation; Iron; Iron, standard deviation; Lanthanum; Lanthanum, standard deviation; Leg86; Lutetium; Lutetium, standard deviation; Manganese; Manganese, standard deviation; Neodymium; Neodymium, standard deviation; Nickel; Nickel, standard deviation; North Pacific; Samarium; Samarium, standard deviation; Sample code/label; Scandium; Scandium, standard deviation; Tantalum; Tantalum, standard deviation; Terbium; Terbium, standard deviation; Thorium; Thorium, standard deviation; Uranium; Uranium, standard deviation; Ytterbium; Ytterbium, standard deviation
Type:
Dataset
Format:
text/tab-separated-values, 3671 data points
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