【摘要】 <正> 本文根据我们的调查和前人的工作,对六股河口附近砂积体加以记述,进而探讨辽西沿岸全新世海水入侵趋势。 一、区域概况 六股河口位于绥中和兴城县交界处(图2),发源于松岭山脉,主流长110公里,流域面积为3000平方公里。多年平均最大径流量为16.67更多还原

【Abstract】 Holocene transgression trend in the near-shore of western Liaoning was studied on the basis of sand accumulation geomorphy and sedimentary character. The data 14C show that transgression had taken place in this region 8000-7000 years ago, the river valley was flooded, sea water reached as far as 5 to 10 km upstream but no more than 20 km, equivalent to 5 to 7 m above the normal sea level. Thickness of marine phase was from 20 km to 25 km. Sea water regressed in 5000-4000 B. P.更多还原