Trace element geochemistry of microbialites: towards an independent record of biogenicity, microbial communities, and seawater chemistry

微生物岩的微量元素地球化学：生物成因、微生物群落和海水化学的独立记录

• 批准号: DP0663312
• 负责人: Prof Gregory Webb
• 金额: $ 10.83万
• 依托单位: Queensland University of Technology
• 依托单位国家: 澳大利亚
• 项目类别: Discovery Projects
• 财政年份: 2006
• 资助国家: 澳大利亚
• 起止时间: 2006-01-01 至 2009-12-31
• 项目状态: 已结题
• 来源: https://dataportal.arc.gov.au/RGS/Web/Grants/DP0663312
• 关键词: Trace; element; geochemistry; microbialites; towards

A vast amount of Australia's mineral wealth is held in rocks of Precambrian age, yet those rocks are notoriously difficult to date and correlate owing to the rarity of fossils. Successful discrimination of different microbialites using biochemically sensitive trace elements will provide a firm basis and rationale for stromatolite biostratigraphy and greatly increase our ability to understand the geological evolution and distribution of Precambrian rocks and resources. Additionally, a better understanding of the information content of stromatolites will yield considerable insight into the origin of life on Earth and its relationship to Earth's evolving chemistry and environment.

澳大利亚大量的矿产资源蕴藏在前寒武纪时代的岩石中，但由于化石稀少，这些岩石的年代和相关性都是出了名的困难。利用生物化学敏感的微量元素成功地区分不同的微生物岩，将为叠层石生物地层学提供坚实的基础和理论依据，大大提高我们对前寒武纪岩石和资源的地质演化和分布的认识。此外，更好地了解叠层岩的信息内容将有助于深入了解地球生命的起源及其与地球不断变化的化学和环境的关系。