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Multi-Element Imaging of a 1.4 Ga Authigenic Siderite Crystal1.4 Ga
  • 2024-01-08
元数据
名   称 Multi-Element Imaging of a 1.4 Ga Authigenic Siderite Crystal1.4 Ga
科技资源标识 CSTR:11738.14.NCDC.XDA14.PP4345.2024
DOI 10.3390/min11121395
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摘   要 Iron formations (IFs) are traditionally considered to be limited during 1.8􀀀0.8 Ga. However,
there are recent reports of siderite-dominated IFs within this time interval, such as the 1.40 Ga
Xiamaling IF in North China and the 1.33 Ga Jingtieshan IF in Qilian. To further explore the crystallization
and formation mechanisms of siderite, an authigenic siderite crystal from the Xiamaling
IF was fully scanned using laser ablation inductively coupled plasma mass spectrometry (LA-ICPMS).
Multi-element imaging with a spatial resolution of 5 m revealed an obvious rim structure
of the siderite crystal, which might record the crystallization and growth processes. The Al- and
Fe-enriched zone in the core of siderite crystal might be an iron-bearing nucleus, and the formation of
rim structure was related to the transition from a closed crystallization environment to a semi-closed
growth environment. These results, combined with carbon isotope evidence from the siderites and
surrounding shales, suggest that vigorous dissimilatory iron reduction that can provide Fe2+ and
HCO3
􀀀 to the pore water is a key factor to form the siderite-dominated Xiamaling IF.
学科分类
170.50
关键词
siderite iron crystallization multi-element imaging LA-ICP-MS Mesoproterozoic Xiamaling Formation dissimilatory iron reduction
作者 Huajian Wang,Yuntao Ye,Yan Deng,Yuke Liu,Yitong Lyu,Fenglian Zhang,Xiaomei Wang and Shuichang Zhang
数据量 4.1 MiB
论文类型： journal
论文网址： https://doi.org/10.3390/min11121395
期刊名称： Minerals
出版时间： 2021-09-01
引用和标注
数据引用
Huajian Wang,Yuntao Ye,Yan Deng,Yuke Liu,Yitong Lyu,Fenglian Zhang,Xiaomei Wang and Shuichang Zhang. Multi-Element Imaging of a 1.4 Ga Authigenic Siderite Crystal1.4 Ga. 国家冰川冻土沙漠科学数据中心(http://www.ncdc.ac.cn), 2024. https://cstr.cn/CSTR:11738.14.NCDC.XDA14.PP4345.2024.
Huajian Wang,Yuntao Ye,Yan Deng,Yuke Liu,Yitong Lyu,Fenglian Zhang,Xiaomei Wang and Shuichang Zhang. Multi-Element Imaging of a 1.4 Ga Authigenic Siderite Crystal1.4 Ga. 国家冰川冻土沙漠科学数据中心(http://www.ncdc.ac.cn), 2024. https://www.doi.org/10.3390/min11121395.
许可协议
知识共享许可协议   本作品采用 知识共享署名 4.0 国际许可协议进行许可。
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