LOESS STRATIGRAPHY OF MANGLING IN HENAN PROVINCE

In this paper,Kouma profile,located in Mengjin,Henan north of middle Mangling Plateau Form has been studied.This profile contains S₁₁ and upwands loess-paleosol each loess and paleosol are clear.The magnetic susceptibility curve shows that the susceptibility value of S₂ is lower than the others,while the thickness of L₃ is very thin,showing abnovmal character.Palaeomagnetic stratigraphy shows that the depth of the boundary between Brunhes normal polarity chron and Matuyama reversed one is 38.9 meters,which located at the lower part of L₈.Furthermore,two normal polarity intervals are revealed in the late Matuyama reversed polarity chron.