Uranium and strontium concentrations of ODP Hole 117-722B (Appendix B), supplement to: Shimmield, Graham; Mowbray, Stephen R (1991): U-series disequilibrium, particle scavenging, and sediment accumulation during the late Pleistocene on the Owen Ridge, Site 722. In: Prell, WL; Niitsuma, N; et al. (eds.), Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 117, 465-472

Graham Shimmield & Stephen R Mowbray
High resolution sampling of the upper 10 m of Hole 722B has provided information on the extent of 234U/230Th disequilibrium in Owen Ridge sediments accumulating over the last 250 k.y. High biological productivity in surface waters is sustained by seasonal upwelling driven by the Southwest Monsoon. Evidence from the Owen Ridge suggests that there has been significant variation in this productivity over the late Pleistocene, and that greater biological production occurred during interglacial episodes. The...
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