Carbon dioxide sequestration more than 3.7 billion years ago and the oldest climate cycles

37亿多年前的二氧化碳封存和最古老的气候周期

• 批准号: DP120100273
• 负责人: Prof Allen Nutman
• 金额: $ 17.81万
• 依托单位: University of Wollongong
• 依托单位国家: 澳大利亚
• 项目类别: Discovery Projects
• 财政年份: 2012
• 资助国家: 澳大利亚
• 起止时间: 2012-01-01 至 2016-12-31
• 项目状态: 已结题
• 来源: https://dataportal.arc.gov.au/RGS/Web/Grants/DP120100273
• 关键词: Carbon; dioxide; sequestration; more; than

More than 3.7 billion years ago atmospheric greenhouse CO2 was sequestered into limestone sedimentary rocks deposited in ice-free oceans. Why then, with the 30-25 per cent cooler sun in those times, was our earth not frozen over? Solving this oldest climate problem, will give the deepest-time perspective to the earth's changing climate feedback loops.

37亿多年前，大气温室效应中的二氧化碳被封存在无冰海洋中沉积的石灰石沉积岩中。那么，为什么在那个时候太阳温度降低了30%到25%的情况下，我们的地球没有结冰呢？解决这一最古老的气候问题，将为地球变化的气候反馈回路提供最深刻的时间视角。