My research topic is identifying the source and migration of fluids in marine sediments using radioactive iodine (129I) with a half-life of 15.7 million years. Half-life is the time it takes half of the atoms of a material to decay. Previous work with iodine isotopes (isotopes: atoms of the same element with different numbers of neutrons) has demonstrated that the way a fluid (e.g., water, gas) moves through sediment depends on the physical properties (e.g., porosity,…
