Black shale event during the Late Triassic Carnian Age: Implications from sedimentary and palaeontological records in Longmen Mountains region
Shi Zhiqiang，Ou Lihua，Luo Fengzi，Li Yun，Qian Lijun
JOURNAL OF PALAEOGEOGRAPHY . 2009, (4): 375 .  DOI: 10.7605/gdlxb.2009.04.002