Recurrent breakdown of Late Permian reef communities in response to episodic volcanic activities: evidence from southern Guizhou in South China

Reefs, both living and ancient, are extremely sensitive to environmental change. Recurrent breakdown of reef communities implies episodic occurrence of unfavorable marine conditions. An alternating succession of reef limestone with algal-foraminiferal grainstone records frequent change of Late Permian shallow-marine ecology in the Ziyun area of Guizhou Province, South China. The algal-foraminiferal grainstone interbedded in the marginal platform...