Eodiagenesis is characterized by the assemblage of carbonate - analcime - anhydrite, while authigenic kaolinite is found in some strata.
浅埋藏期以碳酸盐 ～ 沸石 ～ 硬石膏组合为特征.
Prismatic crystals of Natrolite on Analcime, forming an interesting cluster, Together with Hematite included Thomsonite.
柱状的钠沸石在方沸石上, 有著像是放射状的晶簇.与内含赤铁矿而成红色的杆沸石.