IRSL Signals from Maar Lake Sediments Stimulated at Various Temperatures

Esther Dorothe Schmidt, Andrew S. Murray, Frank Sirocko, Sumiko Tsukamoto & Manfred Frechen
Optically stimulated luminescence (OSL) and infrared stimulated luminescence (IRSL) have been measured from seven fine-grained samples from core JW3 from the dry maar of Jungfernweiher (West Eifel /Germany). Two different elevated temperature post-IR IRSL protocols in the blue detection were applied to polymineral fine grains (4–11 μm). These protocols involve stimulation with IR for up to 200s at 50°C prior to elevated temperature stimulation with IR for 100s at 225°C or 200s at 290°C. Quartz...