检索结果-南通市图书馆

^(4.)Ar-^(3.)Ar thermochronology of two ductile shear zones from Yiwulüshan,West liaoning Region: Age constraints on the Mesozoic tectonic events

引用

Chinese Science Bulletin 2002年第13期47卷 1113-1118页

作者： zhang xiaohui, li tiesheng & pu zhipingresearch center of mineral resources exploration, institute of geology and geophysics, Chinese Academy of {3.,{4., china Guangzhou institute of Geochemistry, Chinese Academy of {3., Guangzhou 51 Research center of mineral resources {3. Institute of Geology and Geophysics Chinese Academy of Sciences Beijing China Guangzhou institute of Geochemistry Chinese Academy of Sciences Guangzhou China

Two ductile shear zones trending EW and NNE respectively not only controlled the tectonic framework of the northern North china, but also constrained the geody-namic background for gold mineralization in this region. Field observations and microstructural analyses reveal that the EW trending ductile shear zones are mainly contributed to dextral compressional deformation resulting from top-to-the-southeast oblique thrust shearing, whereas the NNE trending ones are genetically related to sinistral strike-slip and extensional faulting. One sample from the former yielded an 4.Ar-{4.Ar plateau age of (219±4. Ma (Bi) and two samples from the latter gave 4.Ar-{4.Ar plateau ages of (116± 2) Ma (Bi) and (127±{4. Ma (Bi). These ages provide constraints on the top-to-the-southeast oblique thrusting event occurring in Late Triassic and the sinistral extensional and strike-slip faulting event which occurred in Early Cretaceous.

关键词： 4.Ar-3.Ar age biotite ductile shear zone West liaoning Region.

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

^(4.)Ar-^(3.)Ar ages of the Louzidian-Dachengzi ductile shear zone near Chifeng,Inner Mongolia and their tectonic significance

引用

Chinese Science Bulletin 2002年第15期47卷 1292-1297页

作者： zhang xiaohui, li tiesheng, {3. Zhiping & WANG HuiResearch {4. for mineral resources exploration, institute of geology and geophysics, Chinese Academy of sciences, beijing 100101, china Guangzhou institute of Geochemistry, Chinese Academy of sciences, G Research center for mineral resources {3. Institute of Geology and Geophysics Chinese Academy of Sciences Beijing China Guangzhou institute of Geochemistry Chinese Academy of Sciences Guangzhou China

The Louzidian normal fault occurs as the eastern detachment fault of the Kalaqin metamorphic core complex. Field observations and microstructural analyses reveal that the Louzidian-Dachengzi ductile shear zone developed in its lower-plate was genetically related to sinistral strike-slips and extensional faulting. Two samples from this ductile shear zone yield 4.Ar-3.Ar plateau ages of 13. Ma (Bi) and 126 Ma (Kp), which are concordant with their isochron ages. The plateau age of 13. Ma (Bi) records the formation age of the ductile shear zone. The inconsistent relationship between the earlier strike-slip ductile shear zone and the later normal fault makes the Kalaqin Quasi-metamorphic core complex distinctive from Cordil-leran nietamorphic core complex. These ages provide important geochronological data for {3.tting constraints on the formation age and genesis of such ductile shear zones.

关键词： 4.Ar-3.Ar age Sinistral strike-slip Louzidian-Dachengzi ductile shear zone Metamorphic core complex.

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

4.Ar-3.Ar Thermochronology of two ductile shear zones from Yiwuliishan,West liaoning:age constraints on the Mesozoic tectonic events

40Ar-39Ar Thermochronology of two ductile shear zones from Y...

引用

中国科学院地质与地球物理研究所2002学术年会

作者： zhang xiaohui~a li tiesheng~a {3. Zhiping~b a.Research {4. of mineral resources exploration,institute of geology and geophysics,Chinese Academy of sciences,beijing {13.,{14. b.Guangzhou institute of Geochemistry,CAS,Guangzhou 51064.,{14.

Two ductile shear zones trending EW and NNE respectively not only controlled the tectonic framework of the northern North china,but also constrained the geodynamic background for gold mineralization at this *** observations and microstructural analyses revealed that the EW trending ductile shear zones are mainly contributed to dextral compressional deformation resulted from top-to-the southeast oblique thrust shearing,whereas the NNE trending ones are genetically related to sinistral strike-slip and extensional *** sample from the former yielded an Ar-Ar plateau age of 219±4.Ma(Bi) and two samples from the latter gave Ar-Ar plateau ages of 116±2 Ma(Bi) and 127±{4.Ma(Bi).These ages provide constraints on the top-to-the-southeast oblique thrusting event occurred in Late Triassic and the sinistral extensional and strike-slip faulting event occurred in Early Cretaceous.

关键词： 4.Ar-3.Ar age biotite ductile shear zone West liaoning

来源： cnki会议评论

在线全文

cnki会议

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：