Huangnitang
黄泥塘 | |
|---|---|
Village | |
  Huangnitang Location in Zhejiang | |
| Coordinates: 28°55′00″N 118°31′56″E / 28.91674°N 118.532219°E | |
| Country | People's Republic of China |
| Province | Zhejiang |
| Prefecture-level city | Quzhou |
| County | Changshan County |
| Subdistrict | Tianma Subdistrict |
| Village | Zhoutang |
Huangnitang (simplified Chinese: 黄泥塘; traditional Chinese: 黃泥塘; pinyin: Huángnítáng) is a village of Zhoutang village (周塘村), Tianma Subdistrict (天马街道), Changshan County, Quzhou, Zhejiang Province, China.[1][2][3] It is the location of the Global Boundary Stratotype Section and Point (GSSP), which marks the boundary between the Third and Darriwilian Stages of the Middle Ordovician. The GSSP was ratified by the International Union of Geological Sciences in 1997.
The boundary is defined as the first appearance of the graptolite Undulograptus austrodentatus. The graptolite Arienigraptus zhejiangensis appears 0.5 m below this boundary. The rock section is shale.
- ^ 周塘村简介 [Zhoutang Village Introduction] (in Simplified Chinese). Zhejiang Government Affairs Service. Retrieved 20 July 2018.
周塘村{...}辖{...}黄泥塘、{...}等12个自然村。
- ^ Chen, Xu (陈旭); Zhou, Zhiyi (周志毅) (2016-01-04). 《奥陶系全球界线层型剖面和点位(GSSP)的研究》. doc88.com. Ancient Animals Research Institute of the Chinese Academy of Sciences, Nanjing.
4 中奥陶统上不达瑞威尔阶（Darriwilian）的底界{...}达瑞威尔阶是在我国建立的第一个 GSSP，已广为人知。层型剖面位于浙江常山县南黄泥塘村
- ^ 《4枚“金钉子”档案》. 163.com news. 2012-04-19.