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South-Central Section - 43rd Annual Meeting (16-17 March 2009)

Paper No. 15
Presentation Time: 8:00 AM-6:00 PM

ArcGIS BASED ANALYSIS TOOL SET FOR THE STUDY OF PHOTOREALISTIC VIRTUAL MODELS OF GEOLOGICAL OUTCROPS


ALFARHAN, Mohammed1, WHITE, Lionel1, CLINE, Jarvis1, ABDELSALAM, Mohamed2 and AIKEN, Carlos1, (1)Department of Geosciences, The University of Texas at Dallas, 800 W. Campbell Rd, Richardson, TX 75080, (2)Dept. of Geological Sciences & Engineering, Missouri University of Science and Technology, 129 McNutt Hall, 1400 N. Bishop Ave, Rolla, MO 65409, msfarhan@yahoo.com

An ArcScene based toolset has been developed which enables the geological analysis of photorealistic virtual outcrop models. A model is created from LIDAR scans and high resolution photographs of the outcrop. Commercially available software is used to create the model. The model is converted into an ArcGIS compatible format and viewed with ArcScene. An innovative interface to ArcScene has been created which enables editing of the model and extraction of data from it. The interface enables the performance of common analysis tasks such as strike-dip and trend-plunge. It also enables more complex analysis such as balanced cross-section, hinge axial plane determination, and rapid classification of the various surface orientations in the outcrop. The wide spread availability of the ArcGIS software platform coupled with a central repository of outcrop models will be a powerful educational tool for earth sciences. Students will be able to perform orientation analysis using the concepts taught in class on a wide range of structures before ever performing the same analysis in the field. Examples of analysis on outcrops in the Arbuckle Anticline along Interstate 35 in southern Oklahoma are given.

Session No. 13--Booth# 15

Posters II
Tuesday, 17 March 2009: 8:00 AM-6:00 PM
Geological Society of America Abstracts with Programs. Vol. 41, No. 2, p.31
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