Development of a Down-hole Magnetic Susceptibility Logger and Soil Magnetic Laboratory for Archaeological and Soils Investigations

开发用于考古和土壤调查的井下磁化率记录仪和土壤磁实验室

• 批准号: 0215723
• 负责人: Rinita Dalan
• 金额: $ 9.22万
• 依托单位: Minnesota State University Moorhead
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2002
• 资助国家: 美国
• 起止时间: 2002-08-01 至 2004-02-29
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0215723&HistoricalAwards=false
• 关键词: Development; Down; hole; Magnetic; Susceptibility

With support from a National Science Foundation Major Research Instrumentation award, Dr. Rinita Dalan will collaborate with Bartington Instruments Ltd. to develop a down-hole magnetic susceptibility logger appropriate for archaeological and other near-surface applications. Surficial processes affect soil magnetic properties and in depositional contexts it is possible to use magnetic variation over depth both to identify individual buried surfaces and to gain insight into the factors responsible for their magnetic alteration. Based on preliminary data, Dr. Dalan believes that humanly modified surfaces can be distinguishable in this way. Thus, in principle, a magnetic susceptibility logger could be used as a prospection device to locate and to determine the extent of archaeological sites. Because the logger currently under development can measure sections up to 1.6 meters in depth and be inserted within a 1" diameter hole, it has the potential for widespread use.Working with Bartington Instruments Ltd. Dr Dalan will help to develop a stage two prototype. Both field and laboratory tests will be conducted and experiments will compare the performance of the second-generation prototype to the original and be used to provide advice on further improvements. Performance will be evaluated in terms of a number of variables including repeatability (noise), sensitivity, stability and resolution. In addition, speed and ease of field operation as well as flexibility of application will be evaluated. Field and laboratory tests, together with analysis and presentation will be conducted over a period of 1.5 years. The southern lake Agassiz Region, an archaeologically important area easily accessible to Dr. Dalan provides a set of diverse soil and sedimentary environments and thus offers an excellent test situation. Three/four sites, most archaeologically examined and pedologically described give a controlled context. In addition to down hole measurements, sediment samples will be collected for laboratory analysis.This project is important for several reasons. It will provide archaeologists and soil scientists with the ability to quickly and easily plot variation in magnetic susceptibility over depth and offer insight into the sediment characteristics responsible for this variation. It will also play a significant role in undergraduate student training. Dr. Dalan will actively involve Moorehead State University undergraduates in both laboratory and field aspects of the research. The project provides an excellent vehicle to teach principles of archaeology, geophysics and soil science and hopefully will provide an experience which encourages students to pursue careers in science.

在国家科学基金会重大研究仪器奖的支持下，Rinita Dalan博士将与Bartington Instruments Ltd.合作开发适合考古和其他近地表应用的井下磁化率测井仪。表层沉积过程会影响土壤磁性，在沉积环境中，可以利用深度上的磁性变化来识别单个埋藏表面，并深入了解导致其磁性变化的因素。根据初步数据，Dalan博士认为，人类修饰的表面可以通过这种方式区分开来。因此，原则上，磁化率测井仪可用作勘探设备，以确定考古遗址的位置和范围。由于目前正在开发的测井仪可以测量深度达1.6米的剖面，并插入直径为1英寸的孔中，因此它具有广泛使用的潜力。Dalan博士将与Bartington Instruments Ltd.合作，帮助开发第二阶段原型。将进行实地和实验室测试，并通过实验将第二代原型的性能与原始原型进行比较，并用于提供进一步改进的建议。将根据多个变量评价性能，包括重复性（噪声）、灵敏度、稳定性和分辨率。此外，还将评估现场操作的速度和便利性以及应用的灵活性。现场和实验室测试以及分析和演示将在一年半的时间内进行。南部的阿加西斯湖地区是一个考古学上重要的地区，达兰博士很容易进入，提供了一系列不同的土壤和沉积环境，因此提供了一个很好的测试环境。三/四个地点，大多数考古学检查和土壤学描述提供了一个受控的背景。除了井下测量外，还将收集沉积物样品进行实验室分析。它将为考古学家和土壤科学家提供快速轻松地绘制磁化率随深度变化的能力，并提供对导致这种变化的沉积物特征的深入了解。它也将在本科生培养中发挥重要作用。达兰博士将积极参与穆尔黑德州立大学的本科生在实验室和现场方面的研究。该项目提供了一个很好的工具来教授考古学，地球物理学和土壤科学的原则，并希望将提供一个经验，鼓励学生追求科学事业。