The paleo-geomorphy before the sedimentary of the Permian formation is recovered with the Moulage method, then the karst geomorphy unit is partitioned.
采用印模法恢复出本二叠系沉积前,划分出岩溶单元,恢复表明,研究总体表现为起伏不大,西东低,相对差最大约130米。
The paleo-geomorphy before the sedimentary of the Permian formation is recovered with the Moulage method, then the karst geomorphy unit is partitioned.
采用印模法恢复出本二叠系沉积前,划分出岩溶单元,恢复表明,研究总体表现为起伏不大,西东低,相对差最大约130米。
Current paleoecological studies strongly rely on fossil relics such as footprint, moulage, reliquiae, bone and other materials, but these materials are difficult rarely available and to be preserved.
而含粪沉积物在特定则是常见,特定海鸟粪标型元素特征是对生物链、气候、冰盖进退、海平面升降等综合环境因素记录或响应。
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