The external source of energy is naturally occurring, ionizing radioactivity (alpha, beta, gamma and cosmic radiation).
The time lag can be understood by reference to solid state energy band theory.
The Eltville tephra (Western Europe) age revised: Integrating stratigraphic and dating information from different last glacial loess localities.
The aeolian sediment from above the Beuningen horizon yielded an IRSL age estimate of 9.4±1.0 ka.
The main focus is on the crucial criterion whether it is probable that such materials experience complete luminescence signal resetting during the volcanic event to be dated.
This is argued based on the findings from existing literature, model calculations and laboratory tests.
Their age determination is therefore of great importance in volcanologic, tectonic, geomorphological and climate studies.
In this article, we propose the use of phreatic explosion deposits and xenolithic inclusions in lava flows as target materials for luminescence dating applications.