Magnetic measurements as a forensic geology tool: A review
Magnetic measurements as a forensic geology tool: A review
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DOI：
10.5575/geosoc.2020.0015
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发表时间：
2020-08
期刊：
影响因子：
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通讯作者：
N. Kawamura
中科院分区：
文献类型：
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作者：
N. Kawamura
法医地质学利用从事件、事故和犯罪现场收集的矿物、岩石碎片、土壤、沉积物和悬浮固体样品作为证据。本文讨论了磁测量作为分析证据的分析工具。与传统的化学方法相比，磁性测量是一种快速、非破坏性、有效的工具，可以检测证据和对照样品中磁性矿物的粒度、数量和类型。法医地质磁测是一种基于岩石磁学、环境磁学和考古磁学方法的应用技术。在这里，我们报告的磁性数据从扰动和燃烧的土壤，并讨论负载沉积物和如何检测悬浮固体的来源。为了开发磁性测量在法医地质学中的应用，阐明日本土壤中磁性矿物的降雨蚀变率是很重要的。建立大面积的土壤数据库，并采用新的测量技术，可以检测土壤和沉积物样品中非常弱的磁化，这是充分发展磁性测量作为法医地质学的强大工具所必需的。
Forensic geology makes use of analyses of mineral, rock fragment, soil, sediment, and suspended solid samples collected from incident, accident, and crime scenes as evidence. This paper discusses magnetic measurements as an analytical tool for analyzing evidence. Com-pared with traditional chemical methods, magnetic measurements are a quick, non-destructive, and effective tool that can detect grain size, quantity, and types of magnetic minerals in evidence and con-trol samples. Magnetic measurements for forensic geology are an applied technique based on methods from rock magnetism, environmental magnetism, and archaeological magnetism. Here, we report magnetic data from disturbed and burned soils, and discuss load sediments and how to detect the origins of suspended solids. To develop applications for magnetic measurements in forensic geology, it is important to elucidate the alteration rate of magnetic minerals by rainfall in soil in Japan. The construction of a soil database that cov-ers a large area, and the use new measurement techniques, which can detect very weak magnetization in soil and sediment samples, are needed to fully develop magnetic measurements as a robust tool for forensic geology.