Abstract The recovery time of marine productivity following the Cretaceous-Paleogene (KPg) mass extinction varies tremendously with location (hundreds to millions of years), with possible delays in the tropics as compared to higher latitudes. This heterogeneity is based on prevalent oligo- to mesotrophic marine environments. While highly productive eutrophic environments are less prevalent, they play a greater role in the carbon cycle. Here we present data from a eutrophic region within the tropical southern Tethys. Records of both organic matter and calcite production in this locality exhibit stability across the KPg boundary. In addition, our study points to a remarkably rapid recovery (

中文翻译：

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白垩纪-古近纪大灭绝后富营养化生态系统初级和输出生产力的恢复力

摘要 白垩纪-古近纪 (KPg) 大灭绝后海洋生产力的恢复时间因地点而异（数亿至数百万年），与高纬度地区相比，热带地区可能会出现延迟。这种异质性基于普遍的贫到中营养海洋环境。虽然高生产力的富营养化环境不那么普遍，但它们在碳循环中发挥着更大的作用。在这里，我们展示了热带特提斯南部富营养化地区的数据。该地区的有机质和方解石生产记录在 KPg 边界上表现出稳定性。此外，我们的研究表明恢复非常迅速（