We ave investigated first Saleh’s experiments using a Scanning Electron Microscope (SEM). Below you can see an overview of a 70:30 k-feldspar : quartz sample deformed at 800 MPa confining pressure and 750˚C, i.e. P-T conditions corresponding to approximately 25 km depth. K-feldspar is bright while quartz is dark. Top and bottom of the sample are large unloading cracks (black) separating the sample from the alumina forcing blocks (gray).
