الفهرس | Only 14 pages are availabe for public view |
Abstract The present thesis is an attempt to shed the light on the age and origin of the ore through the interpretation of the paleomagnetic and magnetic fabric results for the investigated rocks. The obtained results will help in highlight one of the previous literatures that coincide with our result about the source of the ore. The goal of this study can be achieved from the following items: 1) Field sampling of oriented samples from the different localities and different iron phases and laboratory preparation of the standard cores. 2) Intensive rock magnetic experiments such as: Isothermal remanent magnetization (IRM) acquisition, Coercivity of remanence, Hysteresis Loops and Curie temperature determination to identify the dominant magnetic minerals that may responsible for carrying the magnetization. 3) Magnetic cleaning and processing of the studied samples using both thermal and A.F demagnetization techniques for isolating the magnetic component (s) carried by these rocks. 4) Calculation of the pole positions for all ore types and correlating the obtained poles with the corresponding reference poles of Egypt to identify the magnetization age. 5) Measuring anisotropy of low-field magnetic susceptibility (AMS) of the collected samples for the magnetic fabrics investigation. 6) Interpreting the obtained results in order to understand the age and origin of the studied ores. |