Qingyan Formation
Geology
Members: unnamed (36), Leidapo (49), Mafengpo (1), Yingshangpo (2), Yuqing (3)
Lithologies: not reported (3), claystone (23), mudstone (28), "shale" (22), "mixed carbonate-siliciclastic" (3), marl (34), wackestone (5), packstone (2), "reef rocks" (1), "limestone" (13)
Paleoenvironments: marine indet. (47), carbonate indet. (10), open shallow subtidal (26), perireef or subreef (1), intrashelf/intraplatform reef (2), platform/shelf-margin reef (1), offshore shelf (2), coastal indet. (2)
Age range: Aegean or 247.20000 to 242.00000 Ma
Collections