河南科学
河南科學
하남과학
Henan Science
2015年
10期
1828-1831
,共4页
超单元%同源岩浆演化%S型花岗岩%折多山
超單元%同源巖漿縯化%S型花崗巖%摺多山
초단원%동원암장연화%S형화강암%절다산
super-unit%comagmatic evolution%S-type granite%Zheduoshan
根据花岗岩同源岩浆演化序列,将康定县折多山超单元花岗岩体划分为3个单元,岩石组合特征为粗粒似斑状二长花岗岩、中粒二长花岗岩、细粒二长花岗岩,具有明显的成分-结构演化特征,同位素年龄为3.75~15.4 Ma,时代属喜马拉雅期的S型花岗岩. 通过岩石化学、稀土元素、微量元素等数据的分析,论述了折多山岩体的物质来源、构造环境及其成因.
根據花崗巖同源巖漿縯化序列,將康定縣摺多山超單元花崗巖體劃分為3箇單元,巖石組閤特徵為粗粒似斑狀二長花崗巖、中粒二長花崗巖、細粒二長花崗巖,具有明顯的成分-結構縯化特徵,同位素年齡為3.75~15.4 Ma,時代屬喜馬拉雅期的S型花崗巖. 通過巖石化學、稀土元素、微量元素等數據的分析,論述瞭摺多山巖體的物質來源、構造環境及其成因.
근거화강암동원암장연화서렬,장강정현절다산초단원화강암체화분위3개단원,암석조합특정위조립사반상이장화강암、중립이장화강암、세립이장화강암,구유명현적성분-결구연화특정,동위소년령위3.75~15.4 Ma,시대속희마랍아기적S형화강암. 통과암석화학、희토원소、미량원소등수거적분석,논술료절다산암체적물질래원、구조배경급기성인.
According to the comagmatic evolution succession of granite,Zheduoshan super-unit granite in Kangding County is divided into three units. The rock association characteristics are coarse grained monzonitic granite ,middle granularity adamellite and fine-grained adamellite. Granite has obvious composition-texture evolutionary character. Its isotopic age is 3.75-15.4 Ma,and it belongs to Himalayan S-type granite. By analyzing the data of petrochemistry, rare earth element and microelement,we discussed the material source,structural setting and structural origin of Zheduoshan in pluton.
