Retrograde eclogite rock. Polarised light micrograph showing how eclogite,a metamorphic rock formed at great depth under high pressure and temperature,may alter (become retrograde) when the conditions of its formation become less severe with time. Originally,the pyroxene crystals (coloured) were densely packed (see C001/9160),but now they are more widely spaced and less compressed. This image has been obtained using cross-polarised light (or 'crossed nichols') | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Wiersma, Dirk |
Bildgröße: | 4776 px × 3770 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |