Crust and Mantle Discontinuity Structure Beneath Oceanic Regions

小行星9526911 这项研究和教学补助金是为了研究地幔不连续性的锐度和深度分布的地震估计，这对限制地球成分和温度的模型很重要。 海洋地区的地震数据一直很稀少，无法解决这个问题，但即将上线或计划中的新台站将有助于填补这一空白。 这项工作将包括收集来自永久岛屿台站、临时岛屿台站和临时海底地震部署的数据集，并应用多种技术确定地壳和上地幔不连续面的锐度和横向变化。 本科教学工作将使互联网和多媒体资源进入课堂，并带来了一个新的地球物理领域的课程，利用以前资助的NSF仪器补助金的资源开发。 该补助金是NSF CAREER计划的一部分。

9526911 Sheehan This research and teaching grant is to study seismic estimates of sharpness and depth distribution of mantle discontinuities which are important for constraining models of composition and temperature in the Earth. Seismic data for oceanic regions have been sparse to address this problem but new stations coming online or planned will help to fill this gap. The work will include assembly of data sets from permanent island stations, temporary island stations, and temporary ocean bottom seismic deployments and application of multiple techniques for determining the sharpness and lateral variation of crust and upper mantle discontinuities. The undergraduate teaching efforts will bring Internet and multimedia resources into the classroom, and bring development of a new geophysical field course utilizing resources from a previously funded NSF instrumentation grant. This grant is a component of the NSF CAREER program.