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以云南勐托褐煤为研究对象,采用逐级化学提取实验来提取褐煤中若干微量元素,并利用ICP-MS测试元素的含量,探讨勐托褐煤的沉积环境。研究结果表明:勐托褐煤是在陆相咸化的还原环境中沉积;勐托褐煤沉积时期可能处于温湿到干热过渡的气候条件。
Taking Mengtuo lignite from Yunnan as the research object, some trace elements in lignite were extracted by step-by-step chemical extraction experiment, and the content of the elements in the lignite was tested by ICP-MS to discuss the sedimentary environment of Mengtuo lignite. The results show that: Meng Tuo lignite is deposited in the terrestrial saline environment; Meng Tuo lignite deposition may be in the climate of warm, wet to dry transition.