Auriferous cherts in the Middle Carboniferous Jinchang Formation are the dominant host rocks of auriferous quartz veins ......

Geological and geochemical characteristics of cherts of the low-middle parts of the Jinchang Formation indicate that che......

The mammilated chert(MC) studied in this paper is a kind of silica-rich concretion(SiO2 93%) occurring in the Upper Devo......