摘要
通过米仓山西段１∶５万区域地质调查研究，从元古界火地垭群中解体出后河岩群，属太古－早元古代。认为前震旦纪变质基底以穹盆构造、叠加褶皱、多期面理置换、韧性剪切带为特色，确立了光雾山推覆构造，提出盖层变形以层滑褶皱为主。对岩浆杂岩成功地进行了解体，认为侵入岩具多种成因类型并具多旋回演化特点，指出地台边缘的层序地层有别于陆棚边缘经典模式。
As a result of 1∶50 000 regional investigation,the Houhuo Group which is from Archean to early Proterozoic in age have been separated from the Huo Diya group.It is clear that the distinguishing tectonic feature of this metamorphic basement are consisted of the dome-basin,the superposed fold,the multiple phases of schistosity deformation,the ductile-shearing belt.The Guangwushan nappe is recognized.It is substaintiated that the beding glide fold are dominance in the superficial and the magmatic complex are multiperiodic activity and multicycle.It point out that the sequence stratigraphlly in the carbonate plateform is different with epicontinental platform model.
出处
《矿物岩石》
CAS
CSCD
北大核心
1997年第S1期4-11,共8页
Mineralogy and Petrology
关键词
米仓山
变质基底
后河岩群
构造样式
岩浆杂岩
层序地~层
Mi chang shan,metamorphic basement,Houho group,structural form,magmatic complex,squence stratigraphy.
