摘要
什邡式磷矿床产于松潘-甘孜造山带,受同沉积断块的控制,分布在六水闸推覆体周边,磷质来源于清平磷矿层和绵竹磷矿层,沉积环境为滞流海湾,古地貌是水下隆起,并在不断隆升中成矿。成矿后遭受冲断推覆运动的改造,形成大量柔流褶皱和阶梯断层。与沉降带磷块岩矿床地质特征有很大区别。
Be controlled by sedimentary fault block and distributed around Liushuizha nappe,Shifang phosphorite deposits occur in the Songpan-Ganzi orogenic belt,with submarine upheaval,they sedimented in stagnant gulf.The phosphatic materials origined from Qingping and Miaozhu phosphorite ledge and formed a great deal of flow foldings and terrace faults after suffering nappe reformation,all of which are different from the characters of phosphorite deposit in depression area.
出处
《化工矿产地质》
CAS
2011年第1期27-32,36,共7页
Geology of Chemical Minerals
关键词
成矿条件
冲断推覆
磷块岩矿床
metallogenic conditions
thrust nappe
phosphorite deposit
