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CEW-RI Weekly Seminar on April 07, 2021 by Prof. Francisco Gutiérrez

07-Apr-2021 to 07-Apr-2021

The Trenching Technique in Geomorphological Studies and Geohazard Analyses and its Potential in the Kingdom of Saudi Arabia       

Date        : Wednesday, April 07,2021

Time       : 10:00AM – 10:30 AM

Location  : Online Zoom Room  

 

Speaker: Prof. Francisco GutiĆ©rrez  

vice-president of International Association of Geomorphologists Professor in Universidad de Zaragoza, Spain

Abstract:

    

     Trenches provide excellent exposures of sediments and deformation structures concealed beneath the surface at key sites. The study of the trench walls (e.g. logging, retrodeformation analysis) together with geochronological data allows to obtain a great deal of objective and quantitative information for geomorphological, paleoenvironmental and geohazard investigations. The trenching technique has been mainly developed in the field of Paleoseismology for assessing the seismogenic potential of active faults. However, recent investigations illustrate its practicality for analyzing other hazardous processes (landslides, sacking, sinkholes, earth fissures), the inferring evolution of geomorphic systems and reconstructing paleoenvironmental changes. The talk presents the main methodological aspects of the technique and illustrates some examples of its application, including case studies from Saudi Arabia.

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