Collaborative Research: An Integrated Seismic Experiment Across A Continental Rift: The Newark Basin

合作研究：跨越大陆裂谷的综合地震实验：纽瓦克盆地

• 批准号: 9104862
• 负责人: John Louie
• 金额: $ 2.58万
• 依托单位: Pennsylvania State Univ University Park
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1991
• 资助国家: 美国
• 起止时间: 1991-05-15 至 1992-01-05
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9104862&HistoricalAwards=false
• 关键词: Collaborative; Research; Integrated; Seismic; Experiment

This project involves the acquisition of a vertical seismic profile integrated with a high-resolution reflection survey which will provide both wide- and narrow-angle reflections from the climatic cyclostratigraphy recorded in the Triassic sediments of the Newark Rift Basin, New Jersey. The small amount of stratigraphic overlap between the core holes of the Newark Basin Scientific Drilling Project further justifies the use of high resolution seismic profiling to effectively tie single formations from one hole to another. The best manifestation of the cyclostratigraphy occurs within the Lockatong and lower Passaic formations. Each will be sampled by only a single core hole, the holes near Titusville and Pennington of Lamont's southern transect in Mercer County, New Jersey. To trace facies variations amounting to changes in reflectivity and interval velocity between core holes requires the detailed velocity information and high resolution subsurface images that can be provided by VSP and high resolution surface seismic surveys. The velocities and reflectivities recorded by these surveys should correlate with lake depth index variations can be traced between core holes using the high resolution surface seismic surveys to evaluate the continuity of sequences between the core holes as well as changes in composite Van Houten cycle spacing and lake depth index with proximity to the eastern shore of the basin. Such controls will provide additional constraints for interpretation of the core data with respect to basin wide cyclicity.

该项目涉及获取垂直地震剖面和高分辨率反射测量相结合，该测量将从新泽西州纽瓦克裂谷盆地三叠纪沉积中记录的气候旋回地层学提供广角和窄角反射。纽瓦克盆地科学钻探项目岩心孔之间的少量地层重叠进一步证明了使用高分辨率地震剖面法有效地将单个地层从一个孔连接到另一个孔的合理性。旋回地层学的最佳表现出现在洛卡通组和下帕萨伊组。每一个都将只有一个岩心孔进行采样，这些孔位于新泽西州默瑟县拉蒙特南部样带的泰特斯维尔和彭宁顿附近。为了追踪岩心井间反射率和层速度的变化，需要VSP和高分辨率地面地震勘探所能提供的详细的速度信息和高分辨率的地下图像。这些测量记录的速度和反射率应该与湖泊深度指数相关联，利用高分辨率地面地震测量可以追踪岩心孔之间的指数变化，以评价岩心孔之间层序的连续性，以及靠近盆地东岸的综合Van Houten旋回间距和湖泊深度指数的变化。这种控制将为解释核心数据提供关于整个盆地旋回性的额外限制。