晚更新世末期中国北方陆架区冰缘现象的发现

末次冰期极盛期,海面下降,陆架裸露。寒流爆发南下,使亚洲东部平原区比世界同纬度地区的气温低。强寒流的侵袭,使海退后的陆架平原成为我国东部冰缘地貌的形成区之一。陆架上的冰缘地貌包括:大面积分布的沙地、成群出现的沙丘、零散分布的塌陷沉积、类似揉皱现象的波状夹层、频频出现的冰楔等。 

DISCOVERY OF PERIGLACIAL PHENOMENA FORMED AT THE LAST STAGE OF LATE PLEISTOCENE ON CONTINENTAL SHELF,NORTH CHINA

At the last Ice Age,the sea level lowered and accordingly water retreated from continental shelf. Affected by cold snap from the North,the temperatures of plain area of East Asia are lower than other areas in same geographic latitude,and the continental shelf plain became one of periglacial geomorphies in east China. These shelf periglacial geomorphy includes widely distributed sandlots,groups of sand dunes,bits and pieces of washin sediment,sedimentary texture of the ice-contact origin,sedimentary texture similar to ice wedge in the northern East China Sea ect.