山东国土资源
山東國土資源
산동국토자원
LAND AND RESOURCES IN SHANGDONG PROVINCE
2014年
9期
16-20,24
,共6页
路晓平%李兆营%刘卫东%葛跃进%史全军%姚超
路曉平%李兆營%劉衛東%葛躍進%史全軍%姚超
로효평%리조영%류위동%갈약진%사전군%요초
地质特征%构造环境%乌妥超镁铁%镁铁质岩%东昆中断裂带
地質特徵%構造環境%烏妥超鎂鐵%鎂鐵質巖%東昆中斷裂帶
지질특정%구조배경%오타초미철%미철질암%동곤중단렬대
Geological characteristics%tectonic environment%Wutuo ultramafic mafic rocks%middle Kunlun fault belt
东昆仑昆中断裂带乌妥一带分布20多个超镁铁质镁铁质岩残块(片),在野外地质调查的基础上,结合室内岩石学、岩石地球化学研究,属非典型的蛇绿岩残块(片),是东昆中断带在漫长的地质演化过程中残留在陆块边缘的洋壳物质,形成于洋中岛弧环境。分布于东昆中断裂带内及其附近,时代上属于早古生代。
東昆崙昆中斷裂帶烏妥一帶分佈20多箇超鎂鐵質鎂鐵質巖殘塊(片),在野外地質調查的基礎上,結閤室內巖石學、巖石地毬化學研究,屬非典型的蛇綠巖殘塊(片),是東昆中斷帶在漫長的地質縯化過程中殘留在陸塊邊緣的洋殼物質,形成于洋中島弧環境。分佈于東昆中斷裂帶內及其附近,時代上屬于早古生代。
동곤륜곤중단렬대오타일대분포20다개초미철질미철질암잔괴(편),재야외지질조사적기출상,결합실내암석학、암석지구화학연구,속비전형적사록암잔괴(편),시동곤중단대재만장적지질연화과정중잔류재륙괴변연적양각물질,형성우양중도호배경。분포우동곤중단렬대내급기부근,시대상속우조고생대。
More than twenty ultramafic mafic rock mass distributed in Wutuo area in Kunzhong fault belt of eastern Kunlun.Based on detailed field geological surveys,combining with laboratory petrographic tests and geochemical studies,it is regarded that these ultramafic mafic rocks are typical ophiolite rocks.These ultramafic mafic rocks are oceanic materials remained in the edge of continents during the period of the formation in middle Kunlun fault belt.They were probably formed in an arc island setting,and distributed in the middle and surrounding fault belts of eastern Kunlun,and the forming age is early Paleozoic.