stringer vein 中文意思是什麼
stringer vein
解釋
細脈-
C ) copper ore body surrounded iron ore body ; iron ore were interpenetrated by copper ore stringer vein, which indicated that copper form late than iron. metallogeneti age is 826 230ma, similar with the age of alkali basite and age of other copper deposit in dongchuan ore area, which belong to jinningian
黃銅礦單礦物的re - os同位素年齡研究表明其成礦年齡為826 230ma ,接近礦區堿基性巖年齡,與昆陽裂谷內其它類型銅礦成礦時代相當,均屬于晉寧?澄江期; 4
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