The surface composition and properties of the Earth, the Moon, Mars and asteroids

我的研究项目的主要目标是研究地球、月球、火星和小行星表面反射的电磁辐射，以解决这些天体上发生的地质组成、资源潜力、挥发物分布和表面改性过程等高优先级问题。月球极地地区的矿物组成和水冰的分布是什么？迄今为止，人们对月球极地地区的矿物组成知之甚少。这一信息非常重要，因为它将为未来人类探索月球的任务确定科学上最有希望的着陆点。通过我的研究项目，我将利用激光雷达和高光谱数据得出第一张月球极地矿物图。火星上的热液系统是由什么组成的？火星上的热液系统含有特定的矿物质，这些矿物质可以作为火星上存在的水环境和潜在生命存在的古环境指标。在我的研究项目过程中，我将使用高空间分辨率的高光谱数据来绘制和研究与热液系统相关的关键矿物已经确定的区域的组成。近地小行星的表面特性是什么？我们对小行星的表面特征所知甚少，而这些特征可以揭示塑造它们的过程（以及仍在塑造它们的过程），进而为我们了解太阳系的动态演化提供洞见。我将利用航天器在小型原始近地小行星轨道上获得的高空间分辨率地形测量数据，以更好地了解它们的表面特性。加拿大北极蛛的组成及其对环境的影响是什么？Gossans是由流体硫化物氧化形成的地质构造。加拿大北极地区的Gossans类似于火星上的热液系统。我将利用遥感和实地观测来研究与这些蛛丝有关的成分和环境，并将它们与火星上类似的地层进行比较。北极的蛛丝也构成了矿山废物在永久冻土环境中的行为的类似物。因此，我将研究蜘蛛的成分及其对当地土壤和溪流的影响，以更好地了解在北极采矿的利害关系。解决这些问题将增加行星地质学、地球物理学和勘探方面的基础知识和应用知识，这将有助于未来的行星勘探任务，促进地球上矿产资源的可持续发展，并减轻与北极采矿有关的风险。所获得的知识将使所有加拿大人，包括北方社区受益，并将有助于使加拿大成为空间探索方面的领导者。

The main goal of my research program is to study the electromagnetic radiation reflected by the surface of the Earth, the Moon, Mars and asteroids to address high priority questions regarding the geological composition, the resource potential, the distribution of volatiles and the surface modification processes occurring on these bodies. What is the mineralogical composition and the distribution of water ice in the lunar polar regions? To date, little is known about the mineralogical composition of the lunar polar regions. This information is important as it will allow to target the most scientifically promising landing sites for future human exploration missions to the Moon. Through my research program, I will derive the first polar mineral maps of the Moon using lidar and hyperspectral data. What is the composition of arrested hydrothermal systems on Mars? Arrested hydrothermal systems on Mars contain specific minerals that can act as paleoenvironmental indicators of the aqueous conditions that existed on the planet and on the potential presence of life. Over the course of my research program, I will use high spatial resolution hyperspectral data to map and study the composition of regions where key minerals associated with hydrothermal systems have been identified. What are the surface properties of Near-Earth asteroids? Little is known about the surface characteristics of asteroids, which could reveal information about the processes that shaped (and are still shaping) them, and in turn provide insights into the dynamical evolution of our Solar System. I will use high spatial resolution topographic measurements acquired by spacecraft in orbit around small and primitive Near-Earth asteroids to better understand their surface properties. What is the composition of Canadian Arctic gossans and their environmental impact? Gossans are geological formations that result from sulphid oxidation by fluids. Gossans in the Canadian Arctic are similar to arrested hydrothermal systems on Mars. I will study the composition and environment associated with these gossans using remote sensing and in situ observations to compare them with similar formations on Mars. Arctic gossans also constitute analogues of how mine waste will behave in a permafrost environment. I will thus study the composition of gossans and their effect on local soil and streams to better understand the stakes of mining in the Arctic. Addressing these questions will increase the fundamental and applied knowledge in terms of planetary geology, geophysics and prospecting, which will be useful for future planetary exploration missions, to promote the sustainable development of our mineral resources on Earth and to mitigate the risks associated with mining in the Arctic. The knowledge gained will benefit all Canadians, including the northern communities, and will help in positioning Canada as a leader in terms of space exploration.