Accomplishment Based Renewal: Tectonic and Sedimentary Evolution of the Newfoundland Margin in the Newfoundland-Iberia Rift

纽芬兰-伊比利亚裂谷系是非火山裂谷的典型地区。尽管对其进行了广泛的研究，但关于扩展的持续时间、偶然性和空间分布仍存在根本性问题；它们与大陆地壳变薄/破裂、次大陆地幔岩石圈的挖掘/破裂以及正常海底扩张的开始之间的关系。纯剪切与单纯剪切伸展的时空作用以及裂谷后岩浆活动的性质也不清楚。通过ABR的奖励，PI计划分析一系列广泛的学术和工业地震、GIS和地层数据，以更好地约束伸展期、耦合边缘的对称性，识别可能的裂谷后岩浆侵入，并记录基底的结构。这项研究的更广泛影响将包括培养一名女性博士后研究员和暑期学生。然后，研究将提供最先进的纽芬兰-伊比利亚裂谷系统的综合，这对地质学界具有广泛的兴趣，并可能为未来裂谷系统的IODP钻探提供框架。

The Newfoundland-Iberia rift system is type locality of a non-volcanic rift. Although it has been studied extensively, fundamental questions remain about the duration, episodicity and spatial distribution of extension; their relationship to thinning/brekaup of the continental crust, exhumation/breaching of the subcontinental mantle lithosphere and onset of normal seafloor spreading. The spatial and temporal roles of pure shear vs. simple shear extension and the nature of post-rift magmatism also remain unclear. Through an ABR award the PI plans to analyze a broad set of academic and industrial seismic, GIS and stratigraphic data to better constrain the episodes of extension, the symmetry of the conjugate margins, identify possible post-rift magmatic intrusions and document the architecture of the basement.The broader impacts of the study will include the training of a female post doctoral fellow and summer students. Then study will provide a state-of-the-art synthesis of the Newfoundland-Iberia rift system of broad interest to the geological community and may provide a framework for future IODP drilling of the rift system.