Quartz filled concretion. Section through a concretion showing veins of quartz (silicon dioxide,white lines) that has been deposited inside dilation cracks in what was probably originally a soft,water-containing mud-ball. The cracks were formed when the mud ball dried out to be transformed over time into a mudstone concretion. This specimen measures 110mm in diameter | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Wiersma, Dirk |
Bildgröße: | 4954 px × 3583 px |
Modell-Rechte: | nicht erforderlich |
Restrictions: | - |