检索结果-南通市图书馆

检索条件"主题词=silica-rich seawater"

共 1 条记录，以下是1-10 订阅

全选清除本页清除全部题录导出标记到"检索档案"

详细简洁

排序：

Submarine silica-rich hydrothermal activity during the earliest Cambrian in the Tarim Basin,Northwest China

Submarine silica-rich hydrothermal activity during the earli...

引用

中国科学院地质与地球物理研究所2014年度（第14届）学术年会

作者： Xiqiang Zhou Daizhao Chen Hairuo Qing Yixiong Qian Dan Wang Key Laboratory of Petroleum Resources Research Institute of Geology and GeophysicsChinese Academy of Sciences School of Earth Sciences University of Chinese Academy of Sciences Department of Geology University of Regina Wuxi Institute Exploration and Production Research InstituteSINOPEC Research Institute of China National Offshore Oil Corporation(CNOOC)

Siliceous rocks were widely deposited in many continents during the Ediacaran-Cambrian(E-C) *** on detailed field investigations in the Aksu area of the Tarim Basin in Northwest China,this study presents evidence of a submarine silica-rich hydrothermal system preserved in the E-C boundary *** system consists of a lower stockwork silica-dominant vein swarm zone in the karstified dolostone of the uppermost Ediacaran Qigebulake Formation,which terminates directly under the overlying bedded chert and black shale succession of the lowermost Cambrian Yurtus *** stockwork vein swarms were filled dominantly by a wide spectrum of silica precipitates(amorphous silica,chalcedony,spherulite,fine to coarse quartz) with subordinate pyrite,Fe-(oxyhydr)oxide,and *** host dolostones that were dissected by the vein swarms also suffered extensive silicification and *** vertical stacking relationship of silica-dominant vein swarms and overlying bedded chert suggests they were formed by an identical lowtemperature,silica-rich diffusive submarine hydrothermal system in the earliest *** suggestion is further supported by fluid inclusion microthermometry(T 40-200℃) of the quartz-barite vein *** this case,silica-rich hydrothermal fluids were channelled and precipitated partially along the stockwork veins in the antecedent karstified dolostone and vented mostly into seawater,promoting widespread deposition of bedded chert on the seafloor of Tarim Basin in the earliest *** study provides a useful clue and analogue to understand the widespread silica deposition and coeval vast oceanic and geochemical changes during the E-C transition in the Tarim Basin and elsewhere.

关键词： silica-rich hydrothermal activity quartz-barite vein bedded chert silica-rich seawater Ediacaran-Cambrian transition

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

全选清除本页清除全部题录导出标记到“检索档案”

共1页 << < 1 > >>

回到顶部

执行限定条件

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：