摘要
张家口—承德一带的线性构造可划分为东西及近东西向、北东向、北北东向、北西向。在遥感图象上线性构造表现为线状沟谷、线状山缘、线性构造中断或线性色调异常带等影象特征。多数含磷岩体的亮度值较低,在卫星图象上呈环形构造,为航磁异常正值。该区含磷岩体空间上成带状分布,可划分为大庙—上苍子等五个含磷岩浆岩带,各带空间上明显地受线性构造的控制。根据含磷岩体的空间、时间分布规律和对该区环形构造线性构造分布及航磁异常的分析,笔者初步认为矾山—张山营和治家庄—姚家庄两个含磷岩浆岩带是寻找隐伏的含磷岩体值得注意的靶区。
The lineaments developed in studied area trend EW, NE, NNE and NW. However, the remote-sensing images of most phosphate-bearing intrusions are identified by the ring structures which have lower luminance and deeper tone. According to their distribution under the control of lineaments, these intrusions may be divided into five phosphatic magmatic zones. On the basis of the result studied with regard to the relationship between the lineaments and phosphatic intrusions, both magmatic zones, Fanshan-Zhangshanying and Zhijiazhuang-Yao-jiazhuang, are suggested as the prognostic area for looking for blind phosphate-bearing intrusions.
出处
《地球科学（中国地质大学学报）》
EI
CAS
CSCD
北大核心
1989年第1期77-83,共7页
Earth Science-Journal of China University of Geosciences
关键词
线性构造
磷岩体
遥感图象
lineament, circular structure, phosphate-bearing intrusion, mag-matic zone.
