Correlation of Magma Intrusions in the Slaufrudalur Pluton With 3D Modeling and Photogrammetry

Sammanfattning: Photogrammetry has become a great tool when analyzing geological outcrops. The Slaufrudalur plutonis located in southeast Iceland and is composed of multiple granitic intrusions. With the help of 3Dmodeling and photogrammetry one of these intrusions is recreated to see if layers in the mountainsMosfell, Bleikitindur and Skeggtindur can be correlated. This project will help to understand thecorrelation of the layers and which places in the pluton should be further investigated in the future.                                Agisoft metashape was used to create a 3D model from aerial photographs, LIME was used to markthe layers in the model and MOVE was used to recreate the intrusion on the model. The 3D modelingshowed that the layers in the different mountains were at very similar altitudes and had very similarthicknesses. The intrusion model acted very similar in Mosfell and Bleikitindur and quite similar inSkeggtindur as well. An extension of the top of the intrusion showed that there is a possibility that theintrusion layer can be found in the northern part of the pluton. These findings show that there is apossibility that the intrusion could have covered the whole pluton. With more research this could leadto more knowledge about how the Slaufrudalur pluton was created.