安徽地质
安徽地質
안휘지질
GEOLOGY OF ANHUI
2014年
3期
161-165,175
,共6页
梅川杂岩体%岩石地球化学特征%构造背景%同源岩浆成分与结构演化序列%早白垩世
梅川雜巖體%巖石地毬化學特徵%構造揹景%同源巖漿成分與結構縯化序列%早白堊世
매천잡암체%암석지구화학특정%구조배경%동원암장성분여결구연화서렬%조백성세
Meichuan complex rock mass%petrochemical feature%structure setting%comagmatic composition and structure evolution sequence%early Cretaceous
湖北梅川杂岩体位于扬子地块与秦岭-大别造山带会聚带之东南麓，其从老到新可分为陶斯垴、南泉、杨铺、赤铜山、宋家埂、鹊儿坡、赵俊等7个单元，归并为梅川超单元。岩石地球化学分析研究表明，梅川杂岩体具I型花岗岩特征，为同源岩浆成分与结构演化序列。依据本次野外地质观测，并结合前人研究显示，该杂岩体形成于燕山期造山后的伸展环境。
湖北梅川雜巖體位于颺子地塊與秦嶺-大彆造山帶會聚帶之東南麓，其從老到新可分為陶斯垴、南泉、楊鋪、赤銅山、宋傢埂、鵲兒坡、趙俊等7箇單元，歸併為梅川超單元。巖石地毬化學分析研究錶明，梅川雜巖體具I型花崗巖特徵，為同源巖漿成分與結構縯化序列。依據本次野外地質觀測，併結閤前人研究顯示，該雜巖體形成于燕山期造山後的伸展環境。
호북매천잡암체위우양자지괴여진령-대별조산대회취대지동남록，기종로도신가분위도사뇌、남천、양포、적동산、송가경、작인파、조준등7개단원，귀병위매천초단원。암석지구화학분석연구표명，매천잡암체구I형화강암특정，위동원암장성분여결구연화서렬。의거본차야외지질관측，병결합전인연구현시，해잡암체형성우연산기조산후적신전배경。
The Meichuan complex, Hubei lies at the southeastern foot of the converging belt of the Yangtze landmass with the Qinling-Dabie orogen, is divided into 7 units from old to new as Taosinao, Nanquan, Yangpu, Chitongshan, Songjiageng, Queerpo and Zhaojun, all included in the Meichuan super-unit. Petro-geochemical analysis indicates that the complex has the feature of I-type granite, being of comagmatic composition and structural evolution series. Based on this field geological observation, combined with previous work result, the complex is thought to be formed in extensional environment after the Yanshanian orogen.
