晚更新世末期黄、渤海陆架环境的新探讨

在晚更新世末期,中国陆架环境的最显著特点是寒冷而干燥。那时的海面比现在至少下降了130米,因而渤海、黄海陆架裸露成陆并转化为亚洲大陆的一部分。根据对大量钻孔分析资料和数千公里的浅地层剖面仪测量记录的研究,证明在古季风的作用下,出露了的海底曾发生沙漠化,并产生一系列衍生沉积（黄土沉积）。

A NEW EXPLORATION OF SHELF ENVIRONMENT DURING THE LAST STAGE OF THE LATE PLEISTOCENE

In the last stage of the Late Pleistocene, the main features of the sedimentary environment in China continental shelf were cold and dry. The sea-level of the East China Sea had fallen atleast by 130m at that time. So the shelf region of the Bohai Sea and Yellow Sea were Exposed and became part of the Asian continent. Based on the study of the subbottom profiler records covering several thousand kilometres and the core analysis. The author discovered that under the intensive action of paleomonsoons. desertification and a series of derivative sediments (loess deposits) occurred over the exposed shelf.The main evidence of desertification deposits is the disintegration of the united Marine stratum, the large range of mixed deposit, the endless erosion surface, the typical"angle of repose"texture, the buried dune deposits etc..