【摘要】 <正> 本文讨论的范围系指辽宁金县老鹰咀至盖县西崴子北角（图1）,横跨黄渤二海,长约900公里。近些年来,关于辽东半岛东部沿岸的海面变化、岸线变迁和古地理环境的研究进展迅速。在陈承惠、裘善文和魏成凯等人的著作中都曾加以论述,但涉及本区的却较少。本文是根据我们的野外调查、钻孔和C¹⁴资料对本区全新世海水入侵趋势进行初步探讨。更多还原

【Abstract】 The field investigated is the sector of estuarine coast from the Old Eagle Mouth of Jiu County to the Xiweizi Northern Cape of Gai County, which is consists of the sand and gravel bedrock. The characteristic of marine depositional configuration and sedimentation are discussed and the variational trend of the Holocene transgression of the seawater is emphasized in the paper. It is made know according to the C¹⁴ chronological date that the Holocene transgression in the area began from about 12000 years ago. The marine sediment stratum of about 20m thickness has been deposited. The transgression reached its climax 6000-7000 years ago, but the scope of the transgression was not wide, extended to the inland a few kilometers only at local region. The seawater started to recede about 5000 years ago. There have been obviously twice relative stable stages of the changes of the sea level and the coastline in the process of the transgressive recession. The occurring times were separately about 4000 and 3000 years ago. Therefore, the send and gravel accretions as well as lagoon sediments have been developed extensively in the coastal areas.更多还原