Remagnetization history of Middle Triassic Leikoupo Formation on Wangcang section in Sichuan Province, China

An intensive paleomagnetic investigation has been conducted on the Middle T riassic Leikoupo Formation on the Wangcang section (32.14 degrees N, 103.17 degrees E). The results indicate the magnetic minerals are dominant by mul tidomain magnetite or maghemite, and the characteristic remnant magnetizati on revealed by stepwise thermal/alternating field demagnetization is close to the present-day geomagnetic direction of the sampling. site. This sugges ts that dolomitization/thermal viscous magnetization is responsible for the remagnetization of this kind of rocks.