A multiple-aliquot regeneration-dose (MAR) combining with "Australian Slide method" and a single-aliquot regeneration-dose (SAR) protocol

involving stimulation of the same disc with an infra-red laser diode followed by blue LEDs

were applied to determine the equivalent dose (ED) of polymineralic fine-grains from loess samples collected from the top and the bottom of the Malan loess (L1) respectively. The multiple aliquot IRSL and GLSL

and single aliquot IRSL

BLSL and (post-IR) BLSL ages are presented for two fine grain (4-11 μm) fractions of the loess samples. The preliminary results show that the MAR protocol may be a perfect choice for luminescence dating of loess fine-grain samples

and can be employed to obtain an available age estimate for loess sample as older as approximately 80 ka BP.

and that the age estimates obtained from the post-IR are closed to the independent age determinations for the younger (age less than 10 ka) fine grain samples. The ages from the post-IR

however

are much underestimated to those from independent method or expected estimates for the older samples. It may be suggest that the single-aliquot (post-IR) BLSL protocol of the fine grains could be a suitable choice to date the younger samples.