Nummulitic limestone. Computer enhanced polarised light micrograph of a thin section of a nummulitic limestone.The objects are the remains of large foraminifera,Nummulites sp. These are embedded in a fine-grained matrix of calcareous remains of smaller,planktonic organisms. This type of rock is found in South Europe and North Africa,and was deposited during the eocene and oligocene epochs,37-54 million years BP (before present). Horizontal object size of this section: 3.0 mm | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Pasieka, Alfred |
Taille de l’image : | 5472 px × 3648 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |