Golden Spike

Huangnitang "golden spike" section is the first "golden nail IUGS organization established in January 1997 Chinese". It is located 3.5 kilometers south of Changshan, is the most perfect, the most typical in the study area, standard stratigraphic section is one of the world's rare, known as the "living textbook of geological history, has a very high scientific value of tourism. At present, the scenic spot has become the practice education base of the Institute of paleontology of Nanjing, the Chinese Academy of Sciences, and the patriotism education base for young people. 460 million years ago, the "golden spike" Huangnitang section is an ocean. As the earth moves, the crust changes and the river bed rises gradually, it forms land. Many living creatures in the sea slowly formed the graptolite fossils, fossils, conodont and brachiopod fossils, fossil trilobite fossils of four fossils mainly, there are a small number of gastropod fossils.