叠瓦结构(英语:imbrication)是一种沉积结构,由碎屑颗粒向同一方相互重叠倒塌,如同瓦片。一般在砾岩中常见到[1]。叠瓦的类型一般与古水流向有关[2]。 一般碎屑颗粒长轴方向与古水流方向一致[3]。在冰川沉积物中砾岩向盆地倾斜,而三角洲砾岩可能相反[4]。
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