对徐宿地区寒武纪地层划分的调查

Investigation on the Division of Cambrian Strata in Xusu Area

摘要: 本文旨在阐述对徐宿地区寒武纪地层划分的调查，及其在对理解地球早期生命演化和地质历史的重要意义。寒武纪是显生宙的开始，代表着动物的爆发式快速演化过程，并且见证了地球从微生物为主导的前寒武纪生态系统向复杂多样的生物群落转变。通过新的地层划分方法，如利用碳同位素地层标准曲线，可以更精确地确定地质年代，从而为研究寒武纪生物多样性和环境变化提供重要依据。此外，对寒武纪地层的研究有助于厘定地质年代界线，推动全球地质年代表的更新和完善。寒武纪地层划分对于建立高分辨率年代地层系统至关重要。在地质学和古生物学方面，寒武纪地层划分有助于揭示生物多样性和古地理格局的演变。总之，寒武纪地层划分及相关研究不仅有助于理解地球生命系统的演化历程，还对油气地质勘探、古环境重建以及地球化学研究等多个领域具有重要意义。本文归纳了徐宿地区关于寒武系岩石地层划分和古生物，古气候的讨论。

Abstract: The purpose of this paper is to discuss the investigation of Cambrian stratigraphy in Xusu area and its significance in understanding the evolution and geological history of early life on Earth. The Cambrian period, the beginning of the Phanerozoic Eon, represented an explosive and rapid evolution of animals, and witnessed the transformation of the Earth from a Precambrian ecosystem dominated by microorganisms to a complex and diverse community of organisms. New stratigraphic classification methods, such as the use of carbon isotope stratigraphic standard curve, can more accurately determine the geological age, which provides an important basis for the study of Cambrian biodiversity and environmental changes. In addition, the study of Cambrian strata is helpful to determine the geological time boundary and promote the updating and improvement of the global geological time scale. The division of Cambrian strata is very important for establishing high resolution chronostratigraphic system. In geology and paleontology, the division of Cambrian strata helps to reveal the evolution of biodiversity and paleogeographic patterns. In conclusion, Cambrian stratigraphic classification and related studies are not only helpful to understand the evolution of Earth life systems, but also have important significance for oil and gas geological exploration, paleoenvironment reconstruction and geochemical research. This paper summarizes the discussion on the division of Cambrian lithostratigraphy, paleontology and paleoclimate in Xusu area.