Collaborative Research: Natural Seismicity Investigation of Active Continental Breakup in the Western Woodlark Basin

目前正在提供资金，用于研究巴布亚新几内亚近海伍德拉克盆地西部活跃大陆分裂的地震活动性。低角度法向滑脱是被动边缘演化的基本过程，但与安徒生断裂摩擦滑动的基本原理相冲突。在Woodlark盆地的大陆地壳中已知24到35度的低角度滑动面，这为测试低角度地震活动性的想法提供了机会。将进行海陆被动地震试验，重点是高局部应变区域。海底仪器将被排列以记录微地震活动，pascal仪器将被部署在周围的岛屿上以记录区域地震活动。ODP钻井将为断层提供额外的限制。

Funds are being provided to study the seismicity of an active continental breakup in the western Woodlark Basin, offshore Papua New Guinea. Low-angle normal detachment is a fundamental process in passive margin evolution but conflicts with basic Andersonian tenet of frictional slip on faults. 24 to 35 degree low-angle slip planes are known in the continental crust of the Woodlark Basin and provides an opportunity to test the ideas of low-angle seismicity. A marine-land passive seismic experiment will be undertaken, focused on a region of high-localized strain. Seafloor instruments will be arrayed to record microseismicity and PASSCAL instruments will be deployed on surrounding islands to record regional seismicity. ODP drilling will provide additional constraints on faulting.