PALAEOTIDAL SIGNATURE IN TIDAL DEPOSITIONAL SYSTEM: AN EXAMPLE FROM LUSHAN SECTION OF PROTEROZOIC IN YUXI DISTRICT
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摘要: 作为古潮汐研究窗口的现代潮汐沉积体系,其研究的不断深入为古地层序列中潮汐沉积环境的重建提供了重要的理论基础与识别依据。潮汐体系的不同分类与潮坪环境的异样分带,为多样的潮汐信号提供了独特的沉积环境;现代潮汐体系中的微生物研究不断扩展生物成因古潮汐信号的涵盖范畴,物理成因潮汐信号的丰硕成果为古沉积环境重建奠定了坚实基础。结合潮汐沉积体系中古潮汐信号的新进展,分析了豫西元古界鲁山剖面的沉积特征,旨为区域古环境重建提供借鉴意义。Abstract: Recent researches unveil that the modern tidal depositional system, as a window of ancient tidal deposits, has provided a theoretical foundation and a recognition basis for the reconstruction of tidal depositional environment. The different tidal classification and tidal flat zoning systems were made upon the response of sedimentary environment to various tidal signatures. The research of microbiological deposits in the modern tidal system suggests that the biogenic tidal signal should be adopted to the study of ancient tidal deposits. The fruitful achievements of physical palaeotidal signature may provide a solid foundation for paleoenvironmental reconstruction. Based on the new progress in palaeotidal signatures, this paper takes the sedimentary sequence of the Lushan section in the Yuxi district as an example to provide a reference for regional paleoenvironmental reconstruction.
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Key words:
- tidal sedimentary system /
- palaeotidal signature /
- Yuxi /
- Proterozoic
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