摘要
歪头山铁矿属鞍山式沉积变质铁矿,褶皱、韧性剪切带、断裂是矿区的主要构造形迹。通过构造解析,将矿区鞍山运动中的构造变形划分为3幕。利用共轭节理和断层擦痕反演,对矿区构造应力场进行了定向、定时研究,确定了各期构造应力场。最后,提出了歪头山铁矿"褶皱+韧性剪切带"控矿模式,新模式对矿区的采矿平面设计及寻找可能的漏矿具有指导作用。
Waitoushan Fe deposit is of the Anshan style sedimentarymetamorphic deposit. Fold, brittle shearing zone and fractures are the main structural features. Structural analysis reveals 3 episodes of deformation in Anshan movement. Inversion of the conjugate joints and striation is used to study orientation and timing of the tectonic stress field and define the stages of the field. Then a new orecontroling model of folding and brittle shear zone is drawn. The model may be helpful to locate the missed ore bodies.
出处
《地质找矿论丛》
CAS
CSCD
2003年第2期88-94,共7页
Contributions to Geology and Mineral Resources Research
关键词
构造解析
构造应力场
控矿模式
歪头山铁矿
辽宁省
structural analysis
tectonic stress field
ore-controling model
Waitoushan Fe deposit
Liaoning province
