The paleoenvironmental evolution of Earth and Mars

地球和火星的古环境演化

• 批准号: DP160104988
• 负责人: Prof Paulo Vasconcelos
• 金额: $ 16.83万
• 依托单位: The University of Queensland
• 依托单位国家: 澳大利亚
• 项目类别: Discovery Projects
• 财政年份: 2016
• 资助国家: 澳大利亚
• 起止时间: 2016-01-01 至 2020-05-01
• 项目状态: 已结题
• 来源: https://dataportal.arc.gov.au/RGS/Web/Grants/DP160104988
• 关键词: paleoenvironmental; evolution; Earth; Mars

The project proposes to develop and apply high-resolution isotopic and geochemical techniques to measure the timing and intensity of water-rock interactions at the Earth’s surface throughout the geological past. Water–rock interactions shape the Earth’s landscape, determine the composition of surface and groundwater, produce the soils that sustain life, and buffer the composition of the atmosphere. Ultimately, the project aims to generate a time-calibrated and continuous continental paleoenvironmental record for key sites in the southern hemisphere, spanning from the Mesozoic to the present. Results from this study may allow us to quantify water–rock interactions on Earth, and may also be applicable to investigating the hydrological cycle on Mars.

该项目建议开发和应用高分辨率同位素和地球化学技术来测量整个地质历史中地球表面水-岩石相互作用的时间和强度。水与岩石的相互作用塑造了地球的景观，决定了地表水和地下水的成分，产生了维持生命的土壤，并缓冲了大气的成分。最终，该项目的目标是为南半球的关键地点（从中生代至今）生成经过时间校准的连续大陆古环境记录。这项研究的结果可能使我们能够量化地球上的水-岩石相互作用，也可能适用于研究火星上的水文循环。