Qingkeng Fm
Type Locality and Naming
SW Zhejiang. The Qingkeng Fm was named by Hu Xiongjian, Xu Jinkun et al. The type section is at Dakengcheng-Qingkeng area, southwestern Zhejiang Province.
Synonym: （青坑组）
Lithology and Thickness
The Qingkeng Fm is dominated by metamorphosed clastic rock and siliceous ferruginous rock, most of which were metamorphosed to two-mica leptite [=obsolete term for a fine-grained banded, gneissic rock; often interpreted as metamorphosed volcanics] and two-mica quartz schist in interbedding with massive garnet magnetite quartzite and diopsidite. But its base is dominated by epidote amphibolite. The formation is 650 m thick.
Relationships and Distribution
Lower contact
The base is in conformable contact with the underlying Wan-shan Fm.
Upper contact
It has a conformable contact with Nannong Fm.
Regional extent
SW Zhejiang – N. Fujian. It distributed in the Anji-Qingkeng-Zhuzhou-Huangnong and Longfeng areas.
GeoJSON
Fossils
Age
Depositional setting
Additional Information
Yu Guohua (1997) considers of the Qingkeng Fm as equivalent with the Xiahetu complex of the Chencai Group (Gao Zhejia et al., 2014).