下扬子地区下三叠统蠕虫状灰岩及其成因*
张杰1,2,3, 童金南3

Vermicular limestone of the Lower Triassic and its origin in Lower Yangtze Region
Zhang Jie1,2,3, Tong Jinnan3
安徽广德牛头山剖面蠕体(上)与基质(下)X 衍射图