OA-Netzwerk Logo

Title:
  • High resolution imaging of a large calcite vein network from a polished limestone outcrop in the Oman Mountains : image acquisition, initial stereophotogrammetry and first interpretation
Authors:
  • Sebastian Thronberens
Publisher/Institution:
  • RWTH Aachen
  • 05 Fakultät für Georessourcen und Materialtechnik. Lehr- und Forschungsgebiet Geologie - Endogene Dynamik [531220]
Abstract:
This thesis presents a detailed high resolution image of a large calcite vein network on a polished limestone outcrop of the Natih formation. The outcrop is located in the Oman Mountains at the eastern slope of Jabal Sarrah. The observation is concentrated on a calcite vein network, which spread all over the outcrop. We put a grid on the outcrop surface with a 2 by 2 m spacing. The next step was the acquisition of an image series with a telephoto lens to generate a large panorama picture. Detailed observations on vein sets, structures and overprinting were documented with a photo. Image processing comprised the optimization and compilation of the image series to a 435 Megapixel outcrop panorama, which allows zooming from a large scale view (101 m) to small scale (10-2 m). The pixel size is 0,5 mm. The stitch has been rectified in ArcMap and detail observation images were georeferenced on this basemap. This allows an office based investigation of the outcrop at various scales. Furthermore, we used stereophotogrammetry to generate a point based 3D-Model from four stereo images. The 3D-Model shows the surface structure and is another opportunity to create an orthorectified image of the outcrop. It requires less data (images) but cannot provide a comparable result regarding resolution. Our first evaluations of field observation show that the vein network is composed of 4 different vein sets.
Classification:
  • DDC: Geowissenschaften (550)
  • DINI: doc-type:bachelorThesis
Date:
  • Dec 31, 2009
Format:
  • application/pdf
Document Type:
Language:
  • Englisch (eng)
Identifier:
  • urn:nbn:de:hbz:82-opus-36097
  • http://darwin.bth.rwth-aachen.de/opus3/volltexte/2011/3609/
fulltext:
Origin:
Similarities:
OAIPMH-Record:
Keywords
Decke <Geologie>GoogleWikipedia
Earth sciencesGoogleWikipedia
OmangebirgeGoogleWikipedia
Bruch <Geologie>GoogleWikipedia
Aufschluss <Geologie>GoogleWikipedia
GeologieGoogleWikipedia
Ader <Geologie>GoogleWikipedia