IGPP is pleased to invite you to join its Spring 2022 Seminar Series presentation featuring University of Texas A&M's Mark Everett. Dr. Everett's talk, "The fortress atop and the fortress beneath: geophysical prospection at D-Day and Alcatraz" will be available via Zoom on Tuesday, May 17, 2022, starting at 12:00pm. Zoom: https://ucsd.zoom.us/j/93672396283?pwd=cHMzN3hLMmUyWjdOQ2NrcTg2dVVOUT09. Password: Alcatraz
Time: 12:00 pm, Pacific Time
Note: This meeting will be recorded. Please make sure that you are comfortable with this before registering.
Abstract: Preservation of cultural heritage is an important activity of any civilized society. While the parts of monuments above ground capture the most attention, the unseen parts below ground provide insight into original purpose and are critical to long-term stability. Tools that non-destructively probe up to several tens of meters beneath the surface are difficult to use properly, especially given the unknown degradation of the target and the infinite complexity of the host geological structure. The applied geophysicist is thus called upon by many stakeholders, including archaeologists, preservationists, geotechnical engineers and others, to provide expert consultation, choose an appropriate imaging technique, acquire and interpret the geophysical images, correlate the image findings with other tests, and synthesize the information to help facilitate knowledge discovery and diagnose risk. In this way, the applied geophysicist provides a service equivalent to that of the radiologist for the medical specialist. Herein I illustrate the foregoing concepts in more detail, drawing on my experience from two iconic monuments woven into the fabric of American history, the World War II landing site at Pointe du Hoc and the Citadel beneath the main prison cellhouse at Alcatraz.