安徽巢湖和州组珊瑚层组成及其古生态和古地理特征

Key Points

• This research examines the composition and paleoecological features of coral layers in the Chaohu and Hezhou regions during the Carboniferous period.
• Analyzed sedimentary profiles from Wanshanbu in Chaohu and Hezhou group basal sections.
• Identified coral types and fossilized foraminifera to date coral layers.
• Assessed sediment composition between coral and underlying limestone.
• The coral layer is approximately 5 cm thick and extends laterally for dozens of meters.
• Coral Yuanophyllum kansuense was prominently featured, showing good preservation and contact among individuals.
• Increased amounts of micritic limestone and calcite suggest enhanced hydrodynamics related to relative sea level changes.