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An early Maastrichtian organic-walled phytoplankton cyst assemblage from an organic-rich black mud in Core Fl-533, Alpha Ridge: evidence for upwelling conditions in the Cretaceous Arctic Ocean

Marine GeologyEngineeringPaleoceanographyCold SeepsCretaceous PeriodOrganic-rich Sedimentary RockOceanographyCretaceous Arctic OceanOrganic-rich Black MudMarine BiologyCretaceous-paleogene BoundarySedimentologyEarth ScienceAlpha Ridge