地球轨道参数在前寒武纪地层中的记录及研究进展

前寒武纪(4.6 Ga～541 Ma)占据约90％的地球发展历史.该时期大气成分、海洋氧化还原条件、全球气候和生命演化历程等均发生极大程度的改变,为现在的地球系统奠定了基础.地球轨道参数是描述地球系统演化过程的重要指标,对于研究日地系统、地月系统及地球本身演化具有重要意义.近年来一些学者在全球范围内2650～550 M...

Records and Research Progress of Earth's Orbital Parameters in Precambrian Strata

The Precambrian(4.6 Ga~541 Ma)occupies about 90%of the earth's development history.During this period,the atmospheric composition,ocean redox conditions,global climate,and life evolution process all changed to a great extent,laying the foundation for the current earth system.Earth orbit parameters are important indicators to describe the evolution of the earth system,and are of great significance to the study of the solar—earth system,the earth—moon system,and the evolution of the earth itself.In recent years,scholars have successfully identified many reliable earth orbit parameters in the 2650~550 Ma strata on a global scale.This article summarizes the Earth’s orbital parameters of the Precambrian and analyzes the influence of the extraterrestrial dynamic system and the deep-earth dynamic system on the Earth’s orbital parameters.Based on the major geological events of the Precambrian,it further elaborates the influence of the Earth’s orbital parameters on the surface environmental impact.