2018-2019 USAP Field Season
The tectonic and magmatic structure and dynamics of back-arc rifting in Bransfield Strait: An international seismic experiment
Dr. William Sam Douglas Wilcock
Supporting Stations: Special Project
This project is the United States component of an international experiment led by Spain to conduct a study of the seismicity and volcanic structure of the Central Bransfield Basin, with the objective of characterizing the distribution of active extension across the basin and determining whether the volcanic structure and deformation of the rift are consistent with a back-arc basin that is transitioning from continental rifting to seafloor spreading.
Field Season Overview
A research team of 13 US participants will participate on a cruise onboard the Spanish research vessel Sarmiento de Gamboa. The cruise will travel to the Bransfield Strait where the team will deploy the US ocean-bottom seismograph instrument pool (OBSIP), ocean-bottom seismometers (OBSs) and National Oceanographic and Atmospheric Administration (NOAA) and Oregon State University (OSU) hydrophone-moorings instruments, along with additional German OBSs and broadband land seismometers. Some US personnel will then disembark the vessel at King George Island and return by plane to South America. The remainder of the scientific party will sail to Ushuaia, Argentina.
Deploying Team Members