Investigation of the magnetic and dielectric properties and their anisotropy of salt rocks

盐岩是一种重要的资源，由于其特殊的力学性质，在构造过程中起着重要的作用。此外，盐层中的洞穴可用作不同材料的储存和存放空间。因此，对盐岩的形成、历史、状态和动力学的了解是非常有意义的。岩石组构的研究可以提供关于盐矿内部结构和变形的信息。磁化率各向异性（AMS）是岩石组构的一种常用的表征方法。AMS是由矿物颗粒的排列产生的。AMS方法的优点是快速测量和分析大型岩石样品。AMS方法常用于铁磁性矿物含量高的岩石，本项目的目的是将AMS方法应用于弱磁性盐岩。为此，确定主导磁性并产生磁各向异性的矿物。研究了矿物组构、化学成分与磁性的关系。这将允许的结论，如何变形区和相变可以通过磁性测量的特点。该项目的另一个目的是检查盐岩的介电特性。这些性质决定了电磁波的传播，电磁波通常用于探测盐矿床中的结构。为了可靠地将不同分析的结果联合收割机组合，应使用相同的样品进行物理性能、化学性能和织物的测量。该项目的结果有助于开发新的方法来研究盐矿床的变形，这对盐矿床的利用具有决定性意义。

Salt rocks are an essential resource and play an important role in tectonic processes due to their special mechanical properties. Moreover, cavities in salt formations are used as storage and depository volumes for different materials. Knowledge of the formation, history, state and dynamics of salt rocks are therefore of great interest. Investigations of the rock fabric can give information on the internal structure and the deformation of salt deposits. A common method to characterize the rock fabric is measurement of the anisotropy of magnetic susceptibility (AMS). The AMS is generated by alignment of mineral grains. The advantages of the AMS method is the fast measurement and the analysis of large rock samples. It is often applied to rocks with a high content of ferromagnetic minerals.The aim of this project is the application of the AMS method to weakly magnetic salt rocks. To this end, the minerals that dominate the magnetic properties and generate a magnetic anisotropy are identified. Then the relationships between mineral fabric, chemical composition and magnetic properties are studied. This will allow for conclusions, how deformed zones and facies changes can be characterized by magnetic measurements. A further aim of this project is the examination of the dielectric properties of salt rocks. These properties govern the propagation of electromagnetic waves, which are commonly used to explore structures in salt deposits. In order to reliably combine the results of the different analyses, the measurements of physical properties, chemical properties, and fabric should be done using the same samples. The results of this project can help to develop novel methods to investigate the deformation of salt deposits, which can be decisive for their utilization.