舟山海域海砂资源声地层剖面探测研究
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摘要
在对研究区实测声地层剖面资料进行分析解释的基础上,对比地质浅钻资料,将浅部地层划分为四个地震相单元,对研究区浅地层的沉积格架有了进一步的认识。对区内海底潮流沙脊、沙席、埋藏潮流沙脊、海底沙波等砂质地质体的地质特征有了较深入的了解,并对砂矿的物质来源、成因进行了讨论,揭示出本区砂体近源沉积、快速堆积的特点。
Based on the geological interpretation of sub-bottom profiling which was acquired in study area,The paper divided the shallow strata (or sub-strata) into 4 units with contrasting to drilled data,and have farther understanding of the frame of shallow strata in surveying area.Some geological structures which developed in the seafloor such as sand ridges,deposits of tidal channel,sand waves or mat,and those buried under the seafloor are studied in depth,and the discussion to origin of sand resource and supplying of sediments revealed that the sand bodies has characteristics of near-sources deposition and rapid accumulation.
Based on the geological interpretation of sub-bottom profiling which was acquired in study area,The paper divided the shallow strata (or sub-strata) into 4 units with contrasting to drilled data,and have farther understanding of the frame of shallow strata in surveying area.Some geological structures which developed in the seafloor such as sand ridges,deposits of tidal channel,sand waves or mat,and those buried under the seafloor are studied in depth,and the discussion to origin of sand resource and supplying of sediments revealed that the sand bodies has characteristics of near-sources deposition and rapid accumulation.
引文
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[2]刘保华,丁继胜,裴彦良,等.海洋地球物理探测技术及其在近海工程中的应用[J].海洋科学进展,2005,23(3):374.
[3]赵铁虎,张志珣,许枫.浅水区浅地层剖面测量典型问题分析[J].物探化探计算技术,2002,24(3):215.
[4]金翔龙.海洋地球物理研究与海底探测声学技术的发展[J].地球物理学进展,2007,22(4):1243.
[5]吴自银,郑玉龙,初凤友,等.海底浅表层信息声探测技术研究现状及发展[J].地球科学进展,2005,20(11):1210.
[6]CRIMESA T P,CHESTER D K,THOMAS G S P.Ex-ploration of sand and gravel resources by geomorphologi-cal analysis in the glacial sediments of the Eastern LleynPeninsula[J].Gwynedd,North Wales.Engineering Ge-ology,1992,32:137.
[7]JU YONG KIM.Quaternary geology and assessment ofaggregate resources of Korea for the national industrialresources exploration and development[J].QuaternaryInternational,2001,82:87.
[8]ARITA M,MORIMOTO I,MIZUNO A,et al.Explora-tion and exploitation of off shore sand in Japan[J].UNESCAP CCOP Technical Bulletin,1985,17:81.
[9]中国海湾志编纂委员会.《中国海湾志》第五分册[M].北京:海洋出版社,1992.
[10]宋伟建.东海大陆架地貌研究[J].海洋石油,2005(1):89.
[11]蒋国俊.舟山群岛峡道水动力及沉积特性[J].浙江大学学报:理学版,2001(1):82.
[12]赵铁虎,张训华,王修田,等.广东珠江口-东平近海浅地层剖面的声学特征及地质意义[J].物探化探计算技术,2007,29(3):183.
[13]中华人民共和国国家标准.海洋调查规范-第8部分:海洋地质地球物理调查(GB/T 12763.8-2007)[S].北京:中国标准出版社,2007.
[14]贺松林.东海近岸带沉积物陆源矿物组份的比较研究[J].华东师范大学学报:自然科学版,1991(1):78.
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