Luminescence dating methods on natural minerals such as quartz and feldspars are indispensable for establishing chronologies in Quaternary Science. Commonly applied sediment optically stimulated luminescence (OSL) infrared (IRSL). In 1999, Trautmann et al. (1999a, b) proposed a new related technique called radiofluorescence (IR-RF). IR-RF denotes the signal of feldspar resulting from exposure t...

Variation in beta dose rate within rocks may impact the results of rock surface luminescence dating, for both burial age cobbles and exposure surfaces. Current methods dating assume that radionuclides are homogeneously distributed inside rocks. In this study, two rapid based on counting a portable XRF instrument were developed to measure radioactivity slices. These applied slices from four glac...

iran is one of the limited numbers of ancient countries which is almost totally located on earthquake belt. earthquakes have always been the most important natural hazard in iran. many villages, cities, civilizations and monuments have been partly or totally destroyed by past earthquakes in iran. as a developing country, iran is expanding its cities, industries, dams, power plants etc. the rece...

Recent developments in luminescence dating offer new ways to date exposure and burial durations of rocks. The rock surface methods ideally require high-resolution data, faster sample preparation measurement times, field screening select samples with appropriate characteristics bleaching histories. Presented here is a demonstration an EMCCD (electron multiplying charge coupled device) based syst...

In the present work, systematic dating by luminescence methods has been done on 50 Quaternary geological samples within the study area of São Paulo State, Brazil. Bleaching experiments showed that residual TL intensity of 375 degrees C peak, of the quartz, was obtained after 10 h of sunlight exposition. Intensities decays of the 325 and 375 degrees C TL peaks can be fitted using second order ex...

Brick monuments are one hallmark of emergent political complexity across much of mainland Southeast Asia during the first millennium AD. They first appeared in association with Indic statuary, large nucleated settlements, and the region's earliest states. Chronometric research in the Mekong delta on the earthen and brick wall that surrounds Angkor Borei (southern Cambodia) provides some of the ...