The mechanisms controlling the stacking patterns of deep-water turbidite lobes are currently open to a wide range of interpretations. A study of Turonian to Coniacian turbidite lobe complexes in the greater Marulk area (Dønna Terrace, Norwegian Sea) was undertaken to examine the balance and respective influences of various controlling factors using a large sediment core, well-log and seismic dataset. A four-tiered lobe hierarchy is described based on a detailed sedimentological study of three Cretaceous turbidite lobe systems, involving a variety of sedimentary processes and flow regimes. The inferred depositional stacking patterns were then used to identify autogenic and allogenic forcings on the large-scale depositional architecture of turbidite lobes. Autogenic processes (best observed in core data) control the self-regulation of sediment dispersal and the broad evolution of lobe sub-environments. Conversely, allogenic forcings (best observed in well-log data) regulate axial migration within the turbidite lobe succession, and control sediment pulses and ultimately the general evolutionary trend of the turbidite lobe complex. Beyond this, an updated approach is proposed here aiming at deciphering autogenic-dominant and allogenic-dominant processes at different hierarchical levels in both confined and unconfined turbidite lobe deposits, which may help with assigning appropriate inputs for geomodels for an improved understanding of the internal and external controls on lobe depositional architecture. It is advocated that this approach may eventually be used in other depositional systems, such as in deltaic complexes from coastal settings, both in actual and ancient sediments.

中文翻译：

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自生和异生对浊积岩叶堆积模式和结构的控制：以土伦期至科尼亚期深水浊积岩叶复合体为例（Dønna Terrace，挪威中部近海）

目前，控制深水浊积岩叶堆积模式的机制有多种解释。对大 Marulk 地区（挪威海 Dønna 台地）的 Turonian 至 Coniacian 浊积岩叶杂岩进行了研究，以使用大型沉积岩芯、测井和地震数据集来检查各种控制因素的平衡和各自的影响。基于对三个白垩纪浊积岩叶系统的详细沉积学研究，描述了四层叶层次结构，涉及各种沉积过程和流态。然后使用推断的沉积堆积模式来识别对浊积岩叶的大规模沉积结构的自生和同生强迫。自生过程（在岩心数据中观察得最好）控制沉积物扩散的自我调节和叶亚环境的广泛演化。相反，同种异体强迫（最好在测井数据中观察到）调节浊积岩叶序列内的轴向迁移，并控制沉积物脉冲，并最终控制浊积岩叶复合体的总体演化趋势。除此之外，这里提出了一种更新的方法，旨在破译密闭和非密闭浊积岩叶沉积物中不同层次的自生主导和异生主导过程，这可能有助于为地质模型分配适当的输入，以更好地了解内部和外部环境。对叶沉积结构的外部控制。有人主张这种方法最终可能用于其他沉积系统，例如沿海地区的三角洲复合体，无论是在实际沉积物还是古代沉积物中。