Re-Os geochronology of the Cambrian stage-2 and-3 boundary in Zhijin County, Guizhou Province, China

Re-Os geochronology of the Cambrian stage-2 and-3 boundary in Zhijin County, Guizhou Province,

China

Shuaichao Wei;Yong Fu;Houpeng Liang;Zhihua Ge;Wenxi Zhou;Guangzhe Wang

【期刊名称】《中国地球化学学报（英文版）》 【年(卷),期】2024(037)002

【摘要】The black shale series that formed in the Ediacaran-Cambrian transition are important stratigraphic records of the co-evolution of the paleo-ocean,-climate,and-biology.In this study,we measured Re-Os isotopic compositions of the black shale in the Niutitang Formation from the Gezhongwu section in Zhijin,Guizhou Province.The samples had high Re and Os contents,with Re ranging from 21.27 to 312.78 ng/g and Os ranging from 0.455 to 7.789 ng/g.The Re-Os isotope isochron age of 522.9 ± 8.6 Ma implies deposition of the Niutitang black shale predated the Chengjiang Fauna,providing an age constraint for the expansion of oceanic anoxia in the study area.The initial 187Os/188Os ratio of 0.826 ± 0.026 indicates that enhanced continental weathering might have triggered the expansion of the oceanic anoxia. 【总页数】11页(323-333) 【关键词】

【作者】Shuaichao Wei;Yong Fu;Houpeng Liang;Zhihua Ge;Wenxi Zhou;Guangzhe Wang

【作者单位】School of Resources and Environments, Guizhou University,Guiyang 550025, Guizhou, China;School of Resources and Environments,

Guizhou

University,Guiyang

550025,

Guizhou,

China;Institute of Mineral Resources, Chinese Academy of Geological Sciences, Beijing 100037, China;School of Resources and Environments, Guizhou University,Guiyang 550025, Guizhou, China;School of Resources and Environments, Guizhou University,Guiyang 550025, Guizhou, China;School

of

Resources

and

Environments,

Guizhou

University,Guiyang 550025, Guizhou, China;State Key Laboratory of Biogeology

and

Environmental

Geology,

China

University

of

Geosciences, Wuhan 430074,China 【正文语种】英文 【中图分类】 【文献来源】

https://www.zhangqiaokeyan.com/academic-journal-cn_chinese-journal-geochemistry-english_thesis/0201252121123.html 【相关文献】

1.Two-stage Cretaceous Exhumation of Hengshan Complex in Hunan Province, SE China: Constraints Arising from 40Ar-39Ar Geochronology and Cretaceous Tectonic Implications [J], WANG Yanhong; CUI Jianjun; ZHANG Yueqiao; DONG Shuwen; QI Wen; SU Jinbao; LI Jianhua 2.A Discussion on the Two-stage Mineralization of the Baguamiao -

Shuangwang Gold Orefield, Shaanxi Province, China [J], WANG Haishan ; LIU Xun

3.Characteristics and genesis of microbial lumps in the Maozhuang Stage （Cambrian Series 2）, Shandong Province, China [J], YANG RenChao; FAN AiPing; HAN ZuoZhen; CHI NaiJie; HAN Yu

4.Height growth, diameter-height relationships and branching architecture of Pinus massoniana and Cunninghamia lanceolata in early regeneration stages in Anhui Province, eastern China： effects of light intensity and regeneration mode [J], CHENG Xi-ping; Umeki KIYOSH; Honjo TSUYOSHI; SHAO Peng-yue

5.Spatio-temporal Evolution on Geographic Boundaries of HFRS Endemic Areas in Shandong Province, China [J], LIU Yan Xun; WANG Zhi Qiang; GUO Jing; TANG Fang; SUN Xiu Bin; XUE Fu Zhong; KANG Dian Min

以上内容为文献基本信息，获取文献全文请下载