Oolitic limestone rock. This section through a block of limestone shows ooids,or concentrically layered spherical grains. Ooids are mostly composed of carbonate minerals. They form when waves in warm and shallow water cause small grains of sediment to roll to and fro,collecting layers of mineral coating. This sample measures 33 millimetres tall | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Wiersma, Dirk |
Bildgröße: | 3706 px × 4732 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |