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MG&G

Marine Geology and Geophysics
Field Camp

Mia Paz (front), Lance Kessler (back left) and Brendan Bishop (back right) take a sediment core in a mangrove marsh on Harbor Island near Port Aransas. Photo: Chris Lowery.

The 2025 Marine Geology and Geophysics Field Course returned to Port Aransas and spent eight days collecting and processing multichannel and single channel seismic data, multibeam bathymetry, sediment grab samples, and sediment cores. After returning to Austin, students spent a week and a half interpreting and integrating these data before a final presentation. Additions this year included new geochemical analyses provided by RohmTek (a company founded by MG&G Field Course and Jackson School alumnus Nathan Ganser) and a trip to Mud Island, led by Professor David Mohrig, to take a transect of cores across a recently closed pass through the island.

1) Alex Brosselin (left) Alan Stone (center left) Mia Paz (center right) and Jonas Haug (right) examine the core that they took on Harbor Island in Port Aransas. 2) Jonas Haug measures the salinity of a water sample from Redfish Bay using an optical refractometer. Photos: Chris Lowery. 3) 1) From left to right: Brendan Moehringer, Milo Stephenson, Jonas Haug, Alan Stone, and August Aalto taking a sediment core on Mud Island in Aransas Bay. Photo: Chris Lowery.
1) From left to right: Austin Morrell of RohmTek with students Gabriel Ojo, Vince Ingersoll, Milo Stephenson, Emma Martin, Rob Nikirk (RohmTek), August Aalto, Brendan Moehringer, and Lucero Tunjar Cruz. They’re pictured on the R/V Curt Johnson on Copano Bay. Photo: Chris Lowery. 2) The class takes a sediment core on Mud Island in Aransas Bay. Photo: John Goff.
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