目前有愈来愈多的证据表明在环太平洋周边地区存在大小不同的地块,有人研究发现这些地块在古生代晚期—早中生代时,均处于赤道附近的低纬度地带。笔者与马醒华于1980—1981年期间曾同澳大利亚学者合作,共同对中朝地块的山西太原地区及扬子地块的四川峨眉山地区的晚古生代—早中生代的古地磁进行研究。结果表明两地块在二叠纪晚期也是处于赤道附近的低纬度地带,从而在环太平洋的周边又找到一个太平洋古陆碎块的 There is growing evidence that there are plots of different sizes around the Pacific Rim. Some studies have found that these plots were in the low latitudes near the equator during the Late Paleozoic-Early Mesozoic. The author and Ma Xuanhua worked with Australian scholars during 1980-1981 to study the Paleozoic-Early Mesozoic paleomagnetism of the Taiyuan area in Shanxi Province and the Yangtze block in Emeishan area, Sichuan. The results show that the two blocks were also located in the low latitudes of the equator near the equator in the Late Permian period, so that a Pacific paleo-continental block was found in the periphery of the Pacific Rim