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黔北桐梓志留纪兰多维列世埃隆晚期石牛栏组石牛栏段以壳相灰岩为主,分布于黔中古陆以北的陆表海浅水区。桐梓松坎韩家店剖面石牛栏段上部出露后生动物礁相单元,薄层灰岩礁翼亚相之上覆盖无层理、无分选的生物灰岩砾块则属塌积岩亚相,由此可推测未出露的点礁生长已经达到明显的正向地貌隆起阶段,礁核部分的造礁珊瑚或已固结的礁灰岩在强水流作用下破碎后被搬运到礁体周围堆积;在塌积岩之上叠复层状礁。在整个礁体生长过程中,珊瑚格架是构建绑结岩的主体,造礁动物和附礁动物的生物多样性和丰度高。这个造礁期的生态群落分异与距离黔中古陆海岸线的距离密切相关,南区代家沟属近岸叠层石生长带,韩家店是后生动物格架型点礁分布的南缘,点礁分布向北延伸区截止于水坝塘。桐梓上升造成区域海底暴露并终结礁相生长。
Qianbei Tongzi ZhiLu Jilan multi-dimensional world Elon late Shilan bar group Shou Niu column mainly limestone, located in the land of Qianhai shallow sea surface. Tongzizhan Khan Han shop section of the upper section of the Cattle Fence section exposed after the reef facies unit, thin layer of limestone reef wing sub-facies covered no bedding, no sorting of biological limestone gravel belongs to the subsidence rock subfacies , It can be speculated that unexplained reef growth has reached a significant positive terrain uplift stage reef nuclear part of the reef or consolidation of the reef under the action of strong water flow crushed after being transported to the reef Stacked; Stacked reefs superimposed on a fossil. During the growth of the reef, the coral framework is the main body to build the binding rock. The reef animals and reef animals are of high biodiversity and abundance. The differentiation of ecological communities during the reef formation is closely related to the distance from the ancient coastline of central Guizhou. The Daijiagou in the southern area belongs to the stratigraphic belt of nearshore overlying strata, and the Hanjiadian is the southern margin of the epizootic reef distribution in the metazoan. Point reef distribution to the north extension of the dam pond. The rise of Tongzi caused the regional seafloor exposure and ended the reef growth.