ArticleACS omega2026
Enrichment and Mineralization Patterns of P-F-Sr, Li, Zr-Ta, and REY in the Early Permian Coal Seams from the Qinshui Basin, Northern China.
Article in ACS omega, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Coal seams can host numerous critical metals (e.g., lithium and rare earth elements), which are of great significance to modern industry. An Early Permian coal seam from the Qinshui Basin (northern China) was investigated and is characterized by an unusual enrichment of P-F-Sr, Li, Zr-Ta, and REY (rare earth elements and yttrium). Integrated petrological, geochemical, and mineralogical analyses were used to elucidate the enrichment mechanisms of several characteristic elements and critical metals in coal. The results show that these coal samples are significantly enriched in F (560 μg/g on average, coal basis) and Sr (602 μg/g on average, coal basis). Apatite is found to be the main carrier of P and Sr. Geochemical indicators (e.g., Sr/Ba) indicate peat deposition under marine-influenced conditions, which promoted early diagenetic precipitation of apatite and Sr-phosphates. The positive correlation between Li and paragonite (
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