网纹构造是宝塔组石灰岩地层中非常发育且分布广泛的一种构造形态 ，其成因一直存在争论和疑问。
The polygonal reticulate structure is well developed and wide spread in the Pagoda Formation limestones in the whole Yangtze region.
至今人们对于网纹红土的研究主要集中在其成因分布、结构构造、弹性变形等方面。
So far people pay too much attention to the origin, distribution, structure and elastic deformation of the reticulate red clay.
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