They have escaped detection in earlier studies because of their small crystal size (< 10 μm) and the fact that they are insoluble in the extractants commonly used to quantify marine authigenic phosphate minerals (Rasmussen, 2000). Studies conducted thus far have focused on sandstones of Early ...
The focus of this paper is the analysis of skeletal remains found in Filigosa Tomb 1 presenting crystal-shaped encrustations, grey/black/bluish in colour. 2. A geological perspective 2.1. Sardinian geology 2.1.1. The Palaeozoic Era The geological history of Sardinia (Carmignani et al., 1992...
The distribution of As between groundwater and sediments is controlled by various physicochemical processes, including precipitation/dissolution, adsorption/desorption, oxidation/reduction, and incorporation into mineral crystal structures (Hinkle et al., 2015, Stachowicz et al., 2008). In our study, it...