Luminescence dating of quartz and K-feldspar is now widely used for establishing sediment deposition chronologies in a wide range of Quaternary research. The method is also increasingly applied in exposure and burial dating of rock surfaces. Recently, a fundamentally new signal from feldspar has been discovered: infrared photoluminescence (IRPL). IRPL directly taps the dosimetric information recorded by the minerals (the trapped electrons). This is theoretically expected to overcome the difficulties commonly encountered with existing luminescence dating methodologies (e.g., sensitivity change and signal instability). The potentially significant advantages of IRPL for actual age determination remain unknown, however. This project aims at assessing and tapping this potential. The proposed research program combines laboratory studies with case studies on selected sites to develop an understanding of those characteristics of the IRPL signal that are relevant to age determination: resetting, stability and age range. These insights will be used to develop new and best-practice methods for application to sediments and rock surfaces. In addition, the program includes investigations of plagioclase for which, apart from it being known to emit IRPL, no feasibility studies have been reported so far. It is expected that the proposed research will result in improved or new methods for dating a larger range of Quaternary features, processes, and events than hitherto has been possible.