sedimentary petrography

例句：

1. 1. The study of sedimentarypetrography is crucial for understanding thegeological history of a region.
   沉积岩岩石学的研究对于理解一个地区的地质历史至关重要。
2. 2. Petrographic analysis can help usunderstand the composition and texture of rocks ina particular area.
   岩石学分析可以帮助我们了解特定地区岩石的组成和纹理。
3. 3.The research on sedimentary petrographyhas led to new insights into the formationof ancient rocks.
   沉积岩岩石学的研究为古代岩石的形成提供了新的见解。