A Geophysical Study of the O'Gorman Fracture Zone

1985年秋天，美国国家科学基金会资助的一个项目中的PI 对奥戈尔曼进行了广泛的地球物理调查 断裂带。 该特征包括两个部分， 东太平洋海隆（EPR）的西部和东部，北纬13度。 前者似为正常断裂带，而东 奥戈尔曼以几座海山为标志。 地球物理调查包括海底地震 (OBS)折射激发、SeaBeam剖面测量和磁力测量， 重力测量 在这个奖项中，PI将继续 分析这个实验中收集的数据， OBS数据质量非常好。 的主要目标 该项目是为了表征内部结构的 EOG海山，从而限制 年轻海洋岩石圈上的海山链。

In the Fall of 1985, the PI in an NSF funded project undertook an extensive geophysical survey of the O'Gorman Fracture Zone. This feature comprises two segments lying to the west and east of the East Pacific Rise (EPR) at 13 degree N. The former appears to be a normal fracture zone, while the East O'Gorman is marked by several seamounts. The geophysical survey comprised of Ocean Bottom Seismic (OBS) refraction shooting, SeaBeam profiling and magnetic and gravity measurements. In this award, the PI will continue the analysis of the data collected on this experiment particularly the OBS data which is of excellent quality. The major goal of the project is to characterize the internal structure of the EOG seamounts, and hence to constrain models for the origin of seamount chains on young oceanic lithosphere.