What is the name of the rock types in English if the detrital minerals (quartz plus feldspar) content are 50~75% (based on XRD)?

I have got the minerals content of sedimentary rocks via XRD analysis, and want to give the rock types to each sample. The samples were collected from Miocene and Oligocene in a single well, which...

11 November 2014 8,981 8 View