本文采用最新设计的UTS-A型取心器采取岩心,并以10—15cm间距在该湖盆共采集占地磁标本为正极性,为布容正向期.但3%的样品为负极性,并构成数段散布于正极性地层中,经研究表明,它完整地记录了布容期47万年来8个反向极性事件.该湖盆环境稳定,沉积速率快,是研究短期反极性事件的良好场所. In this paper, core samples were taken from the newly designed UTS-A core take-up core and the positive magnetic field samples were collected in the lake basin at the interval of 10-15cm, which is the forward direction of the cloth content.But 3% And it is composed of a few segments interspersed in the positive polarity strata, and the research shows that it completely records 8 reverse polarity events in 470,000 years of cloth capacity.The lake basin is stable in environment and fast in deposition rate, and is a study of short-term reverse polarity A good place for events.