摘要
从三个方面综述了变质核杂岩研究的新进展：①通过研究基底滑脱带与盖层脆性断层的产状变化，认为递进变形中基底滑脱带原始产状可能是水平的，而上盘盖层中脆性正断层的产状从高角度开始变化；②变质核杂岩的形成与热异常和岩浆活动及由此引起的伸展作用具有密切的成因关系；③变质核杂岩可以形成于不同的区域构造背景下。
The new development of metamorphic core complex study is summarized in three sides:①From the study of occurrence changing of the denudational fault and brittle normal fault of upper plate,it is discovered that the denudational faults of metamorphic core complexes forming in different times may be original flatlying,but the brittle normal faults of upper plate varied from a high angle occurrence;②The formation of metamorphic core complexes is closely related to the regional extension tectonics resulting from a mantle origined geothermal anomaly and the active intrusive of magma;③Metamorphic core complexes might be formed in different tectonic units and tectonic evolution stages.
出处
《地质科技情报》
CAS
CSCD
北大核心
1997年第3期13-19,共7页
Geological Science and Technology Information
基金
地矿部"八五"科技攻关项目
关键词
变质核杂岩
伸展构造
剥离断层
新进展
杂岩
metamorphic core complexes,extension tectonics,denudational fault,new development
