Mojtaba Rajabi discusses his upcoming Pacific South Honorary Lecture, “Present-Day Crustal Stress Across Spatial Scales.”
The present-day crustal in-situ stress field is of extreme importance for understanding both natural processes (e.g., understanding neotectonics, earthquake, and seismic hazard assessment) and anthropogenic activities (e.g., exploration and production of geothermal energy, groundwater, hydrocarbon, mineral resources, CO2, and hydrogen geo-storage). Analysis of the present-day stresses in numerous basins from across the world reveals that significant and complex variations in the present-day stress orientation are commonly observed at different scales. Mojtaba’s lecture aims to investigate the pattern of crustal stress at different spatial scales to better evaluate the causes and consequences of contemporary stress in the earth’s crust.
In this conversation with host Andrew Geary, Mojtaba shares why it’s necessary to understand the present-day crustal in-situ stress field, the impact of investigating crustal stress at different scales, and the causes and consequences of contemporary stress in the earth’s crust. He also goes over the concept of stress mapping and what his years of experience studying basins have taught him.
Dr. Mojtaba Rajabi is an ARC DECRA Fellow at the School of Earth and Environmental Sciences, University of Queensland. He has more than 14 years of extensive experience in crustal stress analysis, geomechanics, and geomechanical-numerical modeling. He graduated with a Ph.D. in Earth Sciences from the University of Adelaide in 2016. Dr. Rajabi has worked on the geomechanical analyses of more than 30 sedimentary basins from across the world including Australia, New Zealand, the Middle East, Mozambique, Iceland, and the Western Mediterranean. Since 2012, Dr. Rajabi has worked on the Australian and World Stress Map projects. He has received over 15 prestigious awards and prizes for his research including the ARC-DECRA Award, the Australian SEG Early Achievement Award, EAGE Louis Cagniard Award, the Royal Society of South Australia’s H.G. Andrewartha Medal, and the International Lithosphere Program’s Flinn-Hart Award.
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Original music created by Zach Bridges. Andrew Geary hosted, edited, and produced this episode for 51 features, LLC. Thank you to the SEG podcast team: Jennifer Cobb, Kathy Gamble, and Ally McGinnis.