Pulverpresstabletten
matrix angepasst
nano-partikulär
ultrahomogen
extrem rein
ohne Bindemittel
Trace element concentrations in (bio) carbonates are used as proxies in paleo-climate research (foraminifera, corals, pteropods, mussel shells, red algae, stalactites, etc.), serve as proof of origin (corals, otoliths), etc.