一条正在发育的中、新生代裂谷带  

A MESOZOIC-CENOZOIC RIFTING ZONE

作　　者：朱云鹤[1] 

机构地区：[1]南京地质矿产研究所,南京210016

出　　处：《火山地质与矿产》1998年第1期37-39,共3页Volcanology & Mineral Resources

基　　金：自然科学基金!49202023

摘　　要：沿长乐－南澳断裂带分布有非蛇绿岩型的镁铁、超镁铁质岩块；具中、新生代裂谷型岩浆组合；断裂两侧具有相似的变质岩基底及对应显著的地幔隆升地带。说明该断裂带为一条正在发育的中、新生代裂谷带。Mafic and ultramafic rocks as non - ophiolite type are distrihuted along Changle - Nan' ao faulted zone, The rocks are characterized by magmatic aasemhlage helonging to Mesozoic Cenozoic rift type. On the both flanks of fault, develop the same metamorphic basement and corresponding mantle uplift zone. Based on the chemical components and geologicaI setting, it can be regarded as a Mesozoic - Cenozoic rifting zone.

关 键 词：长乐-南澳 断裂带 岩浆岩组合 裂谷带 

分 类 号：P542.3[天文地球—构造地质学] P588.1[天文地球—地质学]