| 丁字湾近岸海底沉积物地层单元划分及沉积特征 |
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| 引用本文： | 于剑峰,顾效源,韩明智,原帅帅,强萌麟,李亨健.丁字湾近岸海底沉积物地层单元划分及沉积特征[J].山东国土资源,2020,36(3):26-33. |
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| 作者姓名： | 于剑峰 顾效源 韩明智 原帅帅 强萌麟 李亨健 |
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| 作者单位： | 山东省海洋地质勘查院,山东烟台 264004;山东省第三地质矿产勘查院,山东烟台 264004;山东省海洋地质勘查院,山东烟台 264004;山东省第三地质矿产勘查院,山东烟台 264004;山东省海洋地质勘查院,山东烟台 264004;山东省第三地质矿产勘查院,山东烟台 264004;山东省海洋地质勘查院,山东烟台 264004;山东省第三地质矿产勘查院,山东烟台 264004;山东省海洋地质勘查院,山东烟台 264004;山东省第三地质矿产勘查院,山东烟台 264004;山东省海洋地质勘查院,山东烟台 264004;山东省第三地质矿产勘查院,山东烟台 264004 |
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| 基金项目： | 山东省财政地质勘查项目“山东半岛蓝色经济区重点规划区1[DK(]∶[DK)]5万海岸带综合地质调查(丁字湾)”(编号:鲁勘字(2016)69号)。 |
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| 摘 要： | 通过对172 km的高分辨率浅地层剖面与6个钻孔的综合对比,对丁字湾近岸海底沉积物进行细分,自上而下划分为D0,D1,D2,D3共4个反射界面,SU1,SU2,SU3共3个沉积单元,该文总结了每个沉积单元的埋深、分布及特征,按照各个层序形成时的相对海平面位置及其升降变化态势,划分了海侵、低位、高位3个体系域,分别对应滨海相、陆相、滨海相沉积相。查明了丁字湾近岸浅地层结构及沉积特征,为该区的发展规划、海洋工程建设提供地质依据。
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| 关 键 词： | 浅地层剖面 海底沉积物 沉积单元 沉积相 丁字湾 |
Stratigraphic Unit Division and Sedimentary Characteristics of Offshore Seafloor Sediments in Dingziwan Bay |
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| YU Jianfeng,GU Xiaoyuan,HAN Mingzhi,YUAN Shuaishuai,QIANG Menglin and LI Hengjian.Stratigraphic Unit Division and Sedimentary Characteristics of Offshore Seafloor Sediments in Dingziwan Bay[J].Land and Resources in SHANDONG Province,2020,36(3):26-33. |
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| Authors: | YU Jianfeng GU Xiaoyuan HAN Mingzhi YUAN Shuaishuai QIANG Menglin and LI Hengjian |
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| Institution: | (Marine Geological Exploration Institute of Shandong Procince,Yantai 264004,China;No.3 Exploration Institute of Geology and Mineral Resources of Shandong Province,Yantai 264004,China) |
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| Abstract: | Through comprehensive comparison of shallow seismic profile data with 172km high resolution and six geological drillings,the seafloor sediments in Dingzi Bay can be divided into four reflection interfaces(D0,D1,D2 and D3)and three units(SU1,SU2 and SU3)from top to the bottom.In this paper,the buried depth,distribution and characteristics of each sedimentary unit have been summarized.According to the sea level position and its rising and falling trend when each unit was formed,transgressive system tract,lowstand system tract and highstand system tract are divided,corresponding to littoral facies,continental?facies and littoral facies.Shallow stratigraphic structure and sedimentary characteristics near the shore of Dingziwan Bay have been identified.It can provide geological basis for development planning and marine engineering construction in the area. |
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| Keywords: | Shallow seismic profile drilling seafloor sediments sedimentation unit sedimentary facies |
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