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EVOLUTIONARY PROCESS OF NORTHERN JIANGSU COASTAL ZONE AND A DYNAMIC EQUILIBRIUM MODEL OF NORTHERN JIANGSU SHOAL 总被引:1,自引:0,他引:1
The main portion of the northern Jiangsu coastal zone is the silty plain coast. The dynamic equlibrium has been broken continuously since the Quaternary, especially in the Holocene and the historical periods. In 1855 the Huanghe River (Yellow River) changed its channel entering into sea through the Bohai Sea. We find that the beach strand was then silting up intensely in the north of Qinggang but the coast was caving in and the beach was expanding in the south of Qinggang-. Multiple shoals and submarine ridges off the coast converged into Qionggang and formed a unique coastal landshaft. In this paper we describe the evolutionary process of the northern Jiangsu coastal zone and discuss the formative conditions for the northern Jiangsu shoal. Finally, a dynamic equilibrium model for the northern Jiangsu shoal is presented. 相似文献
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胶州湾东北部沉积物的工程地质特征的初步研究 总被引:1,自引:0,他引:1
引论海洋土工学是一个比较新的研究领域,是近年来国际上发展最为迅速而活跃的领域之一,这门科学试图确定和了解海洋沉积物的总体物理性质和化学性质,以及这些物质对施加的静压力和动力的反应.对它的研究首先是为了满足工程实践,如地基、锚碇的设计需要;对于海底沉积相的鉴别,了解沉积物的侵蚀、搬运、沉积、滑动、固结等方面有着重要意义;对海底矿产的勘探开发和军事海洋学也都具有重要的现实意义. 相似文献
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黄河三角洲五号桩海区位于山东半岛北部现代黄河水下三角洲部分,为1972~1976年黄河自神仙沟、刁口河行水入海的区段,其位置在现代黄河入海口西北约40km处,距东营市约100km。该段岸线向海突出,0~15m等深线距密集,坡降较邻近区段最大,是目前黄河三角洲遭受强烈冲刷后退的区段。这种状态与东南部的现代黄河入海口处的迅速向海淤进,及西部的黄河故道以西套儿河口附近趋于平衡的特点,形成鲜明的对照。本文以1986~1987年实测资料为主,结 相似文献
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