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Sources and sinks of unradiogenic osmium runoff from Papua New Guinea

Martin, Candace; Peucker-Ehrenbrink, Bernhard; Brunskill, Gregg; Szymczak, Ron


The Fly and Sepik are two of the largest rivers draining the island of New Guinea and among the world's large rivers in discharge and sediment yield. Sediment from the upper Fly River and its delta have low187Os/188Os of 0.511-0.560, and sediments from the upper and lower Sepik River have even lower ratios of 0.294-0.418. Filtered waters (<0.45 μm) from the Fly and Sepik rivers have187Os/188Os of 0.616 and 0.335, respectively. Osmium isotopic compositions of surficial sediments from the Gulf of...[Show more]

CollectionsANU Research Publications
Date published: 2000
Type: Journal article
Source: Earth and Planetary Science Letters
DOI: 10.1016/S0012-821X(00)00281-8


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