A modern terrestrial phosphorite-an example from Sri Lanka

Silicification and dolomitization of anh

Silicification and dolomitization of anhydrite nodules in argillaceous terrestrial deposits: an example of meteoric-dominated diagenesis from the Triassic of central Spain

✍ A. M. Alonso-Zarza; Y. Sánchez-Moya; M. A. Bustillo; A. Sopeña; A. Delgado 📂 Article 📅 2002 🏛 John Wiley and Sons 🌐 English ⚖ 988 KB

Cauliflower‐shaped nodules are widespread in a single red mudstone bed in the Buntsandstein (Triassic) facies of the Iberian Range. They consist mostly of quartz, dolomite and calcite, but other minerals, such as barite, kaolinite and iron oxyhydroxides, are also present. The nodules are spherical,