Platform carbonates are among the most voluminous of Cretaceous deposits. The production of carbonate platforms fluctuated through time. Yet, the reasons for these fluctuations are not well understood, and the underlying mechanisms remain largely unconstrained. Here we document the long-term trend in Cretaceous carbonate platform preservation based on a new data compilation and use a climate-carbon cycle model to explore the drivers of carbonate platform production during the Cretaceous. We show that neritic carbonate preservation rates followed a unimodal pattern during the Cretaceous and reached maximum values during the mid-Cretaceous (Albian, 110 Ma). Coupled climate-carbon cycle modeling reveals that this maximum in carbonate deposition results from a unique combination of high volcanic degassing rates and widespread shallow-marine environments that served as a substrate for neritic carbonate deposition. Our experiments demonstrate that the unimodal pattern in neritic carbonate accumulation agrees well with most of the volcanic degassing scenarios for the Cretaceous. Our results suggest that the first-order temporal evolution of neritic carbonate production during the Cretaceous reflects changes in continental configuration and volcanic degassing. Geodynamics, by modulating accommodation space, and turnovers in the dominant biota probably played a role as well, but it is not necessary to account for the latter processes to explain the first-order trend in Cretaceous neritic carbonate accumulation in our simulations.

中文翻译：

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白垩纪碳酸盐岩台地生产

平台碳酸盐是白垩纪储量最大的矿床之一。碳酸盐平台的产量随时间波动。但是，这些波动的原因还没有得到很好的理解，其潜在机制在很大程度上不受限制。在这里，我们基于新的数据汇编来记录白垩纪碳酸盐台地保存的长期趋势，并使用气候-碳循环模型探索白垩纪碳酸盐台地生产的驱动因素。我们显示，在白垩纪，碳酸盐岩的碳酸盐保存速率遵循单峰模式，在白垩纪中期（Albian，110 Ma）达到最大值。耦合的气候-碳循环模型表明，碳酸盐沉积的最大值是由高火山脱气率和广泛的浅海环境（作为低碳碳酸盐沉积的底物）的独特结合造成的。我们的实验表明，在相状碳酸盐岩堆积中的单峰模式与白垩纪的大多数火山岩脱气场景非常吻合。我们的结果表明，白垩纪期间碳酸盐岩碳酸盐岩生产的一阶时间演化反映了大陆构造和火山脱气的变化。通过调节住宿空间和主要生物区系的周转，地球动力学也可能发挥了作用，