%0 Journal Article %T Some problems in application of MDD model (I) %A Qi Li %A Wenji Chen %J Chinese Science Bulletin %@ 1861-9541 %D 1999 %I %R 10.1007/BF03183493 %X In the process of40Ar/39Ar experiment, excess40Ar(40ArE) released from K-feldspar at low temperature step may mask the real age and thermal history information of the sample. A method for Cl correction of40ArE has been introduced and successively used in correction of abnormally high age values of three K-feldspar samples at low temperature step taken from the Red River fault zone. It provides a reliable age information at low temperature step for further multiple diffusion domain (MDD) model fitting. %K excess argon %K Cl correction method %K MDD model %U http://link.springer.com/article/10.1007/BF03183493