High resolution seismic tomography model of the Slave craton for diamond exploration targeting

加拿大是钻石的主要生产国之一，钻石是该国的财富来源。钻石形成于地表之下很深的地方(&gt；150公里)。因此，知道在哪里寻找钻石需要有能力描述钻石形成并向上输送到地表的地球结构。该项目旨在提供加拿大西北部一片广阔的地区地下的三维地震速度模型，深达500公里，该地区包括大陆的大部分和古老部分，称为奴隶克拉通。这个三维模型将通过分析从震源(即任何全球地震)传播到接收器网络(地震台站)的地震波的传播时间分布来获得。通过对大量地震资料的分析和大量台站的使用，我们的研究将得到该地区三维地震速度结构的高分辨率模型。这些结果将被用来研究地下结构和已知钻石产区之间的联系，以便利用三维模型再次发现新的勘探目标。这项研究将有助于发现新的钻石目标，并促进加拿大经济的一个重要部门，从而使加拿大受益。

Canada is one of the main producers of diamonds, which are a source of wealth for the country. Diamonds areformed at great depths beneath the surface (>150 km). Knowing where to look for diamonds therefore requiresthe ability to characterize the structure of the Earth where they form and get transported upward to the surface.This project aims to provide a three-dimensional seismic velocity model of the subsurface, down to >500 km,in a broad region in northwestern Canada that encompasses large and old parts of the continent, called theSlave Craton. This 3-D model will be obtained by analyzing the distribution of travel times of seismic wavesthat propagate from a source (i.e., any global earthquake) to a network of receivers (seismograph stations). Byanalyzing data for numerous earthquakes and using a large number of stations, our study will yield ahigh-resolution model of the 3-D seismic velocity structure in this region. The results will be used toinvestigate the links between subsurface structure and known diamond-producing regions, in order to find newexploration targets again using the 3-D model. This research will benefit Canada by helping find new diamondtargets and promote an important sector of the Canadian economy.