Collaborative research: A community seismic experiment targeting the pre-, syn- and post-rift evolution of the Mid-Atlantic US margin

北美东部边缘的构造和演化是此次GeoPRISMS社区地震实验的重点。所获得的数据将形成一个基本框架，以解决该计划的裂谷启动和演化倡议的几个方面：构造、岩浆、侵蚀和沉积过程如何相互作用；地幔动力学在沿这一被动边缘持续变形中的作用；古代区域结构对塑造当今地质活动分布的长期演化的影响。一个为期一年的海底地震仪阵列(OBSIP-30仪器)将在整个哈特拉斯角扩展陆上测站的覆盖范围(EarthScope可移动阵列，约30个相关地点)。密集分布的地震仪的更多横断面将记录穿过海岸线的地震波，记录从大陆斜坡到沿海平原的更详细的结构。多道地震反射数据将在进行基本处理的培训讲习班结束后公开提供。同样，将为第二期培训讲习班分发地震折射数据。利用自然地震事件进行调查的数据也将通过IRIS数据管理中心公开提供。台站间距和阵列孔径目标地壳和上地幔成像。实验设计建立在现有数据的基础上，以解决当前的科学问题，既强调深层结构，这将照亮正在进行的演化的驱动力，又强调使浅层结构约束现代化，以更好地记录地表响应记录及其与冰川、海平面、沉积和岩浆加载历史的关系。

The structure and evolution of the Eastern North America margin are the focus of this GeoPRISMS community seismic experiment. The data obtained will form a fundamental framework to address several aspects of the Program's Rift Initiation and Evolution initiative: how tectonic, magmatic, erosional and depositional processes interact; the role of mantle dynamics in ongoing deformation along this passive margin; the impact of ancient regional structure on long-term evolution that shapes present-day distribution of geologic activity. A year-long ocean bottom seismometer array (OBSIP- 30 instruments) will extend onshore station coverage (EarthScope Transportable Array, ~30 sites relevant) across Cape Hatteras. Additional transects of densely-spaced seismometers will record seismic waves that travel across the coastline, documenting more detailed structure from the continental slope through the coastal plain. Multi-channel seismic reflection data will be openly available upon completion of a training workshop that will conduct basic processing. Similarly, seismic refraction data will be distributed for a second training workshop. Data for investigations using natural seismic events will also be openly available via the IRIS Data Management Center. Station spacing and array aperture target crust and upper mantle imaging. The experiment design builds on existing data to address current scientific questions, emphasizing both deeper structure, which will illuminate driving forces for ongoing evolution, and modernizing shallow structural constraints, to better document surface response records and their relationship to the history of glacial, sea level, depositional, and magmatic loading.