Skip to main content
Journal of Palaeogeography
Fig. 12 | Journal of Palaeogeography

Fig. 12

From: Sedimentary characteristics of microbialites influenced by volcanic eruption: a case study from the Lower Cretaceous Shipu Group in Zhejiang Province, East China

Fig. 12

Tuffite with coarse fabrics in interreef spaces. a Meso-photo of tuffite with coarse fabrics; b, d Photomicrographs of tuffite showing the coarse fabrics including aluminosilicate minerals such as analcite (formula: NaAlSi2O6·H2O), feldspar and pyrite. Analcite is white under plane-polarized light and shows complete extinction under cross-polarized light. 1.25×; c EPMA and EDS analyses show that these minerals are analcites showing complete extinction under cross-polarized light

Back to article page