Seismic and thermal measurements on the Nova Scotia slope

新斯科舍省斜坡的地震和热测量

• 批准号: 387217-2010
• 负责人: Louden, Keith
• 金额: $ 15.48万
• 依托单位: Dalhousie University
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Ship Time
• 财政年份: 2010
• 资助国家: 加拿大
• 起止时间: 2010-01-01 至 2011-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=464088
• 关键词: Seismic; thermal; measurements; Nova; Scotia

Two primary classes of rifted continental margins, volcanic and non-volcanic, have been recognized based on the amount of volcanism that occurs during lithospheric extension. The Nova Scotia margin is located in a unique position bounding volcanic margins to its south and non-volcanic margins to its north, providing an opportunity to study the nature of the transition between the two margin types. Major structures within crystalline basement offshore Nova Scotia have been imaged on multi-channel seismic reflection profiles, recently made available to us, that may be related to this transition. The volcanic to non-volcanic margin boundaries, in addition, are coincident with significant changes in sedimentary structures. We propose to conduct geophysical measurements, including two seismic refraction lines and the completion of four marine heat flow transects, on profiles across and along the Nova Scotia continental slope to better understand the nature of the transitional structures, including their potential influence on the generation of hydrocarbon resources. These data are directly related to our Discovery Grant research awards and are specifically required by two other joint research projects that have been funded.

基于岩石圈延伸期间发生的火山量，已经确认了两种主要的裂谷大陆边缘，即火山和非火山岩。新斯科舍省的边际位于其南部的火山边缘和北部的非沃尔代面边缘的独特位置，提供了一个机会，可以研究两种边缘类型之间过渡的性质。晶体地下室海上新斯科舍省的主要结构已在最近提供给我们的多渠道地震反射曲线上，这可能与这种过渡有关。此外，火山到非沃尔代面边界的边界与沉积结构的显着变化相吻合。我们建议对新斯科舍省大陆斜坡的剖面进行地球物理测量，包括两种地震折射线和完成四个海洋热流横除样品，以更好地了解过渡结构的性质，包括它们对氢碳资源产生的潜在影响。这些数据与我们的Discovery Grant研究奖直接相关，并且由其他两个已资助的联合研究项目特别需要。