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<p>The calcimicrobial crust–cement boundstone in the Xiannüdong Formation of the Cambrian Series 2 is a distinctive reef type that reflects the evolution of late Precambrian stromatolite structures. This study provides a high-resolution dataset by segmenting large slab images of <i>Girvanella</i>-based reefs into 114 × 114 pixel tiles and annotating microfacies components through a point-counting-based automated labeling.The dataset includes PNG images and corresponding CSV files and can be used as training data for deep learning-based classification of carbonate microfacies. It contributes to research on the evolution of ancient marine ecosystems and the structure of early carbonate platforms.</p>

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High-resolution Annotated Dataset of Girvanella Boundstone Microfacies from the Xiannüdong Formation, China

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2026年3月5日

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  • SoonYoung Choi,
  • DaeCheol Kim,
  • Jongsun Hong,
  • ByungGil Lee,
  • JongDae Do,
  • ChangHwan Kim,
  • ChangWook Lee

摘要

The calcimicrobial crust–cement boundstone in the Xiannüdong Formation of the Cambrian Series 2 is a distinctive reef type that reflects the evolution of late Precambrian stromatolite structures. This study provides a high-resolution dataset by segmenting large slab images of Girvanella-based reefs into 114 × 114 pixel tiles and annotating microfacies components through a point-counting-based automated labeling.The dataset includes PNG images and corresponding CSV files and can be used as training data for deep learning-based classification of carbonate microfacies. It contributes to research on the evolution of ancient marine ecosystems and the structure of early carbonate platforms.