论文部分内容阅读
根据炭窑口一带狼山群二组中的钠 (钾 )长绿片岩夹层呈绿色、外观致密、具有变余中空骸晶与变余(聚 )斑结构及变余杏仁构造、其K2 O =4 2 3%～ 5 93% >Na2 O =2 15%～ 3 14% (K2 O +Na2 O =6 51%～8 0 8% )、多种岩石化学图解结果一致表明其是正变质岩及其Sm_Nd等时线年龄为 182 4Ma(相应TDM =2 0 0 6～ 2 132Ma)等特征 ,确认其原岩是钾质细碧岩 .结合在东升庙、霍各乞、甲生盘矿床已找到的变质火山岩 (凝灰岩 )夹层和狼山～渣尔泰山裂陷槽含矿建造的总体特征 ,可为深入研究该裂陷槽在中元古代的地壳活动与演变、同沉积期火山作用与成矿的关系等提供新信息与新思路 .
According to the Carboniferous Karst area, the interlayer of sodium (potassium) greenstone schist in the second group of Wolfshan Group is green and has a dense appearance. The interlayer with variable remains (poly) 4 2 3% ~ 5 93%> Na 2 O = 2 15% ~ 3 14% (K 2 O + Na 2 O = 6 51% ~ 80 8%). The results of various petrochemical schemes consistently show that they are normal metamorphic rocks and their The Sm_Nd isochron age is 182 4Ma (corresponding TDM = 2606 ~ 2 132Ma) and other features, confirming that the original rock is a potash fine bi-rock, which has been found in Dongshengmiao, Hokguido, The general characteristics of the metamorphic volcanic rocks (tuffs) and the ore-bearing structures of the Langshan-Zhaltai rift trough can be used to further study the crustal activity and evolution in the Mesoproterozoic and the volcanism and mineralization in the synsedimentary Relationship, etc. to provide new information and new ideas.