【摘要】 针对黄土磁性记录重建古地磁场变迁及黄土¹⁰Be示踪古地磁场变化史的问题,提出了将黄土磁化率作为黄土¹⁰Be浓度受气候因素（降水和降尘）影响部分的代用指标,以及分离黄土¹⁰Be浓度中受地磁场调制和受气候影响的不同组分的思路。在平均值概念（MVC）基础上,引入了气候修正因子,进一步消除了气候因素对¹⁰Be浓度变化的影响;从西峰和洛川黄土剖面的¹⁰Be记录重建了过去80 ka、130 ka及700⁹00 ka大气¹⁰Be产率史,有助于解决中国黄土¹⁰Be环境示踪和重建全球古地磁场变化史的科学难题。更多还原

【Abstract】 In this paper,the difficulties were summarized in the reconstruction of the paleogeomagnetic intensities by using either the paleomagnetic approach or the Be records in Chinese loess;a new idea was put forward that takes the susceptibility as a climate proxy of Be composition affected by climate factors（Monsoon precipitation and dust flux） to separate the influence of the climate factors from that of the geomagnetic factor on the measured concentration in loess samples.A climate correction factor was introduced into the MVC method based on the mean value concept（MVC） to further clear up the effect of the climate change on the reconstructed results;the past 80 ka,130 ka and 700 ⁹00 ka ¹⁰Be production rates in atmosphere have been reconstructed,in turn,the global paleogeomagnetic intensities,which have facilitated to solve the academic difficult in environment trace research from ¹⁰Be records in Chinese loess.更多还原