摘要
本文对东秦岭造山带内的84块标本(15个采样点)进行了初步古地磁研究。经逐步热退磁和剩磁分析后,在22块标本(4个采样点)中获得了原生剩磁成分,并利用古地磁极位置、古纬度和古地磁偏角讨论了东秦岭造山带自早寒武世到早三叠世的地质构造演化史。
This paper describes paleomagnetic investigations of 84 rock samples from 15 sites in Eastern Qinling erogenic belt .As a result of thermal demagnetization treatment and statistical ana- lysis ,22 samples from 4 sites (their ages are ∈1 ,C1 ,C3and T1)show primary components .According to their paleomagnetic poles , paleolatitudes and paleomagnetic declination , the evolutional history of geologic structure from ∈1 to T1 in Eastern Qinling erogenic belt is discussed .
出处
《地球科学（中国地质大学学报）》
EI
CAS
CSCD
北大核心
1992年第1期79-86,共8页
Earth Science-Journal of China University of Geosciences
基金
国家自然科学基金资助项目48970137子课题之一
关键词
古地磁
造山带
秦岭
Eastern Qinling erogenic belt , paleomagnetism , cryogenic magnetometer , Foping -Yunxian microplate .
