中三叠纪石灰岩作为微量元素和REY的来源
Katarzyna Stanienda-Pilecki1, Katarzyna Nowińska1, Andrzej Nowrot1
1Faculty of Mining, Safety Engineering and Industrial Automation, Silesian University of Technology, ul. Akademicka 2, 44-100 Gliwice, Poland.
Materials (Basel, Switzerland)
|August 10, 2024
概括
这项研究分析了来自波兰的三叠纪中期石灰岩中的微量元素,以确定纯度. 和的含量表明了阿拉戈尼特的存在,揭示了石灰岩组成的洞察力.
科学领域:
- 地质化学 地质化学
- 矿物学是什么?矿物学是什么?
- 沉积岩石学 沉积岩石学
背景情况:
- 石灰石的纯度对于各种工业应用至关重要.
- 微量元素分析为碳酸盐岩石的二代遗传和沉积历史提供了洞察力.
- 了解Sr,Ba,Sc和REY等元素的分布可以揭示矿物学关联和形成条件.
研究的目的:
- 为了确定来自波兰奥波尔西莱西亚的三亚纪中期石灰岩的纯度.
- 量化所选微量元素的含量 (Ti, Sr, Ba, Zn, Pb, Cu, S, P, Cr, Cd, Ni, Zr, Mo, Rb, Sc, Y, 和 REEs). 这些微量元素的含量是什么?
- 调查微量元素发生的矿物学意义.
主要方法:
- 感应合等离子体质谱 (ICP-MS) 用于微量元素量化.
- 用于元素分析的X射线光 (XRF).
- 电子微探针分析 (EMPA) 寻找Sc和稀土元素,确定 (REY) 含量.
主要成果:
- 微量元素的度从小ppm到数百ppm不等.
- 高 (Sr) 和 (Ba) 含量表明,原碳酸盐材料中存在阿拉贡石.
- 特定元素与矿物相相关: Zn,Pb,Cu,Mo,Ni与硫化物; Ti,Cr与氧化物; Sc和REY替代石中的Ca.
结论:
- 研究的石灰岩的微量元素组成提供了对其纯度和矿物质构成的详细了解.
- 用Sr和Ba表示的阿拉戈尼特的存在是了解原始碳酸盐材料的关键发现.
- 该研究成功地利用ICP-MS,XRF和EMPA进行碳酸盐岩石的准确和精确的地球化学分析.
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