Muna Ghaboush El Dawi
Al Neelain University, Sudan
Title: Locating the intrusive magmatic bodies distributed in Bayanhaote basin, inner Mongolia, North China by using 2nd vertical Derivatives
Biography
Biography: Muna Ghaboush El Dawi
Abstract
There are many kinds of intrusive igneous rocks distributed in Bayanhaote basin like granites, diabase, diorites and basalts. The igneous rocks distributed in Bayanhaote basin have high magnetism because the depths of the igneous are large in that area. The igneous bodies always diffuse along the faults and intrude into the sediments strata so their scale is not very large but they can produce different scale magnetic anomaly. Accordingly, the regional magnetic anomaly is caused by the undulation of metamorphic basement of Pre-Cambrian, and the local magnetic anomaly is caused by igneous bodies intrude into low magnetic sedimentary rocks. By using the method of second vertical derivatives, these intrusive bodies are located. It is proved that it is not easy to locate the igneous bodies by using the magnetic method alone. It must be confirmed by using several geophysical methods like magneto-telluric and gravity methods.