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Paleogeographic and paleoenvironmental reconstruction of terrain associated with coastal prehistoric archaeological sites, Cape Henlopen, Delaware .

机译:与沿海史前考古遗址相关的地形的古地理和古环境重建,开普敦亨洛彭,特拉华州。

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摘要

Gouge auger sampling within Lewes Creek Marsh and ground penetrating radar (GPR) profiles of three prehistoric archaeological sites at Cape Henlopen, Delaware, reveal the paleogeography and paleoenvironments during the prehistoric occupation of relict recurve spits. Previous archaeological surveys of two of the prehistoric archaeological sites at Cape Henlopen provide a range in age from 500 A.D. to 1600 A.D. The three prehistoric archaeological sites lay upon three separate relict recurve spit tips that are today surrounded by Lewes Creek Marsh. These relict recurve spit tips are related to the evolution of Cape Henlopen. Using the prehistoric archaeological sites as points in time, the evolution of Cape Henlopen is revealed to be one that is episodic and related to changes in sea-level.; Ground penetrating radar is used to determine the depth of spit platform, beach face, and dune deposits related to the development of each relict recurve spit and the locality and depth of the prehistoric shell midden deposits on each relict recurve spit. It is concluded that GPR is a useful tool in examining relict coastal landforms and prehistoric archaeological sites that today lay within coastal marine environments. Furthermore, it is concluded that GPR is a useful tool to image the stratigraphy below Lewes Creek Marsh. This is supported by the fact that the ground penetrating radar reflectors below Lewes Creek Marsh are ground truthed by the use of a gouge auger.
机译:刘易斯溪沼泽内的凿孔螺旋钻采样以及特拉华州Henlopen角的三个史前考古遗址的探地雷达(GPR)剖面图揭示了史前占领遗物反曲口的古地理和古环境。先前对亨勒彭角(Cape Henlopen)的两个史前考古遗址的考古调查提供了从公元500年到公元1600年的年龄范围。这三个史前考古遗址位于三个独立的遗迹反曲吐水嘴上,如今被勒威斯溪沼泽环绕。这些遗物反曲吐尖与亨利彭角的演变有关。以史前考古遗址为时间点,亨勒彭角的演变被认为是史诗性的,与海平面的变化有关。探地雷达用于确定与每个遗迹弧形坑的发育有关的吐水平台,滩面和沙丘沉积物的深度,以及每个遗迹弧形坑上的史前壳中部沉积物的位置和深度。结论是,GPR是检查当今沿海海洋环境中的沿海沿海遗迹和史前考古遗址的有用工具。此外,得出的结论是,GPR是对刘易斯溪沼泽地层以下地层成像的有用工具。这得益于以下事实:通过使用凿钻,对刘易斯溪沼泽下方的穿透地面的雷达反射器进行了地面校正。

著录项

  • 作者

    Chadwick, William J.;

  • 作者单位

    University of Delaware.;

  • 授予单位 University of Delaware.;
  • 学科 Geology.; Geophysics.
  • 学位 Ph.D.
  • 年度 2000
  • 页码 268 p.
  • 总页数 268
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 地质学;地球物理学;
  • 关键词

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