Seismic Profiling for Geometry, Deep Crustal Structure and Moho for Petrogenesis of Granite Batholiths: the Boulder Batholith

这项研究将使用重合的垂直组合- 入射和广角反射剖面图来研究 有争议的博尔德岩基，一种晚白垩世浅成花岗岩 在蒙大拿州。 虽然在花岗岩方面取得了很大进展， 岩石成因通过研究熔融关系，同位素和 微量元素，很少使用现代地震 技术，可以成像的地下高得多， 比以前可能的解决方案。 的性质 地震边界，包括莫霍面，可以重建 在岩基就位期间，将通过向前 通过用P波、S波和转换波照射它们来建模， 不同的入射角。

This research will use a combination of coincident vertical- incidence and wide-angle reflection profiling to study the controversial Boulder batholith, a late-Cretaceous epizonal granite in Montana. While much progress has been made on granite petrogenesis through studies of melting relations, isotopes and trace elements, little use has been made of modern seismic techniques that can image the subsurface with much higher resolution than has previously been possible. The nature of the seismic boundaries, including the Moho, which may be reconstituted during batholith emplacement, will be determined through forward modeling by illuminating them with P-, S- and converted waves at different angles of incidence.