Multivariate analysis of the elemental composition of hemipelagic sedimentary successions has provided invaluable information about palaeoenvironmental evolution, including records of short‐lived Eocene hyperthermal events. However, few studies have analyzed the sedimentary record of these climatic events in turbidite‐rich continental margin successions. In order to test the usefulness of multivariate statistical techniques (factor and cluster analysis) in palaeonvironmental and palaeoclimatic research on turbiditic successions, the lowermost Eocene Solondota section, which accumulated on the North Iberian continental margin, was studied. A prominent negative carbon isotope excursion from Solondota was correlated with the Ypresian (early Eocene) hyperthermal event J, also known as C24n.2rH1. High‐resolution sedimentological, geochemical (stable isotopes, major and trace elements) and mineralogical (bulk and clay mineralogy) data show that multivariate statistical analysis helps to manage large‐sized quantitative datasets objectively, avoiding arbitrary choice of representative elements and identifying environmental factors (virtual variables) that may not be evident otherwise. Variations in major and minor elements from hemipelagic carbonates across the Solondota carbon isotope excursion suggest a temporarily more humid continental climate, which caused increased terrigenous material input into the marine environment. The finer grained fraction boosted hemipelagic carbonate dilution, whereas the coarser grained sediment was transported by temporarily more frequent and voluminous turbidity currents. Thus, the results from the Solondota carbon isotope excursion revealed similarities with deep marine records of other early Eocene minor hyperthermal events. This demonstrates the validity of deep‐marine turbiditic successions for providing reliable sedimentological, mineralogical and geochemical records of global palaeoclimatic significance, complementing the information obtained from other sedimentary environments. Furthermore, the generally expanded nature of turbiditic successions can potentially provide palaeoclimatic information at very high resolution, enriching, and perhaps improving, the commonly condensed and sometimes discontinuous record of hemipelagic‐only successions.

中文翻译：

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湍流大陆边缘早期始新世碳循环扰动的物理和地球化学记录

半海岸沉积演替的元素组成的多变量分析提供了有关古环境演化的宝贵信息，包括短暂的始新世高温事件的记录。但是，很少有研究分析这些浊积丰富的大陆边缘演替中这些气候事件的沉积记录。为了检验多元统计技术（因子和聚类分析）在古生物环境和古气候研究中的湍流演替的有用性，研究了在伊比利亚北部大陆边缘积累的最低的始新世Solondota剖面。Solondota的一个显着的负碳同位素偏移与伊普尔人（始新世早期）高温事件J（也称为C24n.2rH1）相关。高分辨率沉积学 地球化学（稳定同位素，主要元素和痕量元素）和矿物学（本体和粘土矿物学）数据表明，多元统计分析有助于客观地管理大型定量数据集，避免了对代表元素的任意选择，并确定了可能的环境因素（虚拟变量）否则不明显。横跨Solondota碳同位素偏移的半碳酸盐碳酸盐中主要和次要元素的变化表明暂时更湿润的大陆性气候，这导致陆生物质输入海洋环境的增加。较细的颗粒级分增加了半碳酸盐的稀释度，而较粗的颗粒状沉积物通过暂时更频繁和更大量的浊流而被输送。从而，Solondota碳同位素偏移的结果揭示了与其他始新世早期轻微高温事件的深海记录相似。这证明了深海湍流演替在提供可靠的全球古气候意义的沉积学，矿物学和地球化学记录方面的有效性，补充了从其他沉积环境中获得的信息。此外，湍流演替的总体扩展性质可能以非常高分辨率提供古气候信息，丰富，甚至改善半潜伏的演替记录的通常精简且有时是不连续的记录。这证明了深海湍流演替在提供可靠的全球古气候意义的沉积学，矿物学和地球化学记录方面的有效性，补充了从其他沉积环境中获得的信息。此外，湍流演替的总体扩展性质可能以非常高分辨率提供古气候信息，丰富，甚至改善半潜伏的演替记录的通常精简且有时是不连续的记录。这证明了深海湍流演替在提供可靠的全球古气候意义的沉积学，矿物学和地球化学记录方面的有效性，补充了从其他沉积环境中获得的信息。此外，湍流演替的总体扩展性质可能以非常高分辨率提供古气候信息，丰富，甚至改善半潜伏的演替记录的通常精简且有时是不连续的记录。