111 Using Near Surface Geophysics to Investigate Geological Problems (Posters)
Abstracts are requested that use geophysics to solve a wide variety of near surface geological problems including hydrology, karst, environmental, engineering, archaeological and geological mapping.
Monday, 20 October 2025
8:00 AM - 5:30 PM
HBGCC, Hall 1
Gravity investigation at Biscuit Basin, Yellowstone National Park
Paper number: 111-0
Program: Technical Sessions
Time: 8:00 AM – 8:00 AM
Authors
Abstract
Biscuit Basin is a small geyser field in the Upper Geyser Basin in Yellowstone National Park. It is to the southwest of the Old Faithful geyser and a large steam explosion at the Black Diamond Pool on July 23, 2024 has generated considerable interest on the basin. Continued steam explosions which are irregularly spaced and have no precursors have only increased the interest in the basin and has forced the closure of the basin to the public. To date, there have been a number of geophysical investigations by various groups (Univ. of Utah, Univ. of Wyoming, USGS, NPS) which include drone magnetic and thermal imaging survey, a system of 35 seismic sensors, electrical resistivity surveys and time-domain EM surveys. To compliment these surveys, a detailed gravity survey was conducted which collected 55 stations surrounding the thermal spring which compliments the previous data collected on the boardwalk within the entire Biscuit Basin region. The data will be processed in complete Bouguer gravity anomalies and then analyzed using residual gravity anomalies, derivatives and a preliminary 3D inversion model.
Geological Society of America Abstracts with Programs. Vol. 57, No. 6
doi: 10.1130/abs/2025AM-412386
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