宿州学院学报2025，Vol.40Issue(3)：52-58,7.DOI:10.3969/j.issn.1673-2006.2025.03.010
安徽灵璧震旦系凝块石热化学特征研究
Thermochemical Characterization of the Sinian Thrombolite in Lingbi,Anhui Province
摘要
Abstract
Since the discovery of microbial fossils in microbial carbonate rocks,microbial rocks have become a re-search hotspot,especially the characterization of microbial rocks and how to effectively distinguish microbial rocks from non-microbial rocks.In this study,thrombolite,as a typical representative of microbial rocks,and micrite,as a representative of non-microbial rock,were selected for the research.The microscopic morphology of the samples was observed using scanning electron microscope and the results showed that there were more obvious traces of microor-ganisms in the thrombolite.X-ray diffraction and Fourier infrared spectroscopy were used to analyze the mineral compositions and the enriched organic functional groups,and it was found that both minerals were composed of the calcite.However,the crystallinity of thrombolite was higher and the number of organic functional groups was more a-bundant.Thermal analysis(TG-DSC)was used to study the chemical reaction process and thermal stability of the minerals at different temperatures to differentiate the minerals of different origin,and the crystallinity and thermal stability of thrombolite was higher.关键词
微生物碳酸盐岩/凝块石/结晶度/热稳定性/TG-DSCKey words
microbial carbonates/thrombolite/crystallinity/thermal stability/TG-DSC分类
天文与地球科学引用本文复制引用
庄定祥,韩淑新..安徽灵璧震旦系凝块石热化学特征研究[J].宿州学院学报,2025,40(3):52-58,7.基金项目
安徽省教育厅自然科学重点项目(2023AH052223) （2023AH052223）
宿州学院博士(后)科研启动基金(2020BS008 （后）
2023BSH002) （）
宿州学院重点科研项目(2023yzd09). （2023yzd09）
