摘要
本文对中国松辽盆地白垩系沙河子组、营城组、登娄库组、泉头组、青山口组、姚家组、嫩江组岩石进行了古地磁系统采样,采样地区主要在松辽盆地中部、北部的大庆油田主要勘探开发区及吉林东部营城煤矿煤田钻井。采样钻井分布在西起齐齐哈尔、白城,东至哈尔滨一带的广大区域内,共计22个钻孔。对其中900余块岩样进行了磁化率、剩磁强度测量(表1),并统计了白垩系各个岩段的平均磁化率(表2)。
Measurement of magnetic remanence intensity and susceptibility is made of more than 900 specimens of Cretaceous rocks from Songliao plain, NE China. Mean values of magnetic susceptibility are obtained for various rock units. The pattern of change in climate during different periods overthere has been argued based upon the coorelation between magnetic susceptibility and paleoclimate. Division and comparison have thus been made of the Cretaceous strata in Songliao plain in terms of climate-stratigraphy
出处
《地球物理学报》
SCIE
EI
CAS
CSCD
北大核心
1989年第1期111-114,共4页
Chinese Journal of Geophysics
关键词
岩石
磁化率
剩磁强度
气候
Magnetic susceptibility, Paleoclimate.
