The grey green illite detritus with goethite rust stain are found at the boundary clay, Permian/Triassic boundary section in Yianshi, Longyan, Fujiang and Yegang, Huangshi, Hubei.

• 在福建龙岩雁石和湖北黄石冶钢二叠、三叠系界线地层中发现一种灰绿色带针铁矿锈斑的伊利石碎屑。