检索结果-南通市图书馆

Neoproterozoic Diamictite of the luoquan formation from the North China Block and Their Implications

Journal of Earth Science 2023年第4期34卷 1128-1139页

作者： Peishan Sui Weidong Sun Nan Han Lei Wang Shiwen Xie Zihang Huang Xiaohong Wang Hongmei Gong Jin Liu Jinyan Lin Yuanyuan Xiao CAS Key Laboratory of Marine Geology and Environment Institute of OceanologyChinese Academy of SciencesQingdao 266071China Laboratory for Marine Geology Qingdao National Laboratory for Marine Science and TechnologyQingdao 266061China College of Earth and Planetary Sciences University of Chinese Academy of SciencesBeijing 100049China Center for Ocean Mega-Science Chinese Academy of SciencesQingdao 266071China Center of Deep-Sea Research Institute of OceanologyChinese Academy of SciencesQingdao 266071China Changqing Oilfield Exploration and Development Research Institute Xi'an 710018China Yanchang Oilfield Exploration and Development Technology Research Center Xi'an 716001China Beijing SHRIMP Center Institute of GeologyChinese Academy of Geological SciencesBeijing 100037China Public Technology Service Center Institute of OceanologyChinese Academy of SciencesQingdao 266071China Department of Geology Northwest UniversityXi'an 710069China

Glacial diamictite may provide important information on paleoenvironment and average composition of the upper continental crust(UCC).In this study,we report sedimentary facies,petrological and geochemical characteristics of Neoproterozoic diamictite from a profile of the luoquan formation on the southern margin of the North China Block(NCB).Upwards the sampling profile,lithostratigraphic strata vary from massive diamictite with poorly sorted carbonate gravels to laminated diamictite with small gravels of terrestrial detrital *** the profile,CaO-MgO-LOI-Sr values decrease with the increase of SiO_(2)-Al2O_(3)-K2O *** these petrological and geochemical variations indicate a change from lodgement till deposition in the proximal of ice sheet to ice-rafting deposition in glacial-marine environment with less dolomite to supply their *** with previous studies on diamictite from other outcrops on the NCB,the deposition of luoquan diamictite reflects that the glaciation on the NCB vanished and the ice-rafting effect weakened with glacial transgression *** addition,significant co-variations of various elements with La and Al2O_(3)confirm the significant conservation of most analyzed elements during the sedimentary processes to produce diamictite.

关键词： diamictite North China Craton paleoenvironment the luoquan formation Neopro-terozoic sedimentation.

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

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

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

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：