清虚洞组(∈_1q)重力流沉积可以细分出三种类型:间歇远源碳酸盐浊流、阵发性碎屑流和卤水密度流,它们分别形成了韵律灰岩(白云岩)、微角砾灰岩和深水蒸发岩,其中深水蒸发岩在这一地区尚属首次发现,其成因与来自潮上萨勃哈盐湖向海回流的重卤水密度流有关。 There are three types of gravitational flow sedimentation in the Qingxudong Formation (∈_1q): intermittent far-source carbonate turbidity, paroxysmal debris flow and brine density flow, which respectively form rhyolite limestone (dolomite) , Micro-breccia limestone and deep-water evaporites, of which deep-water evaporites are the first to be discovered in this area due to the heavy-water density flow from the Saharan Salt Lake in the Chaohu backwaters.