Robuta

https://scirp.org/journal/paperinformation?paperid=77577
Assessing natural radioactivity in marine sands offshore China. Findings show safe construction potential and correlation between 226Ra and 40K concentrations....
natural radioactivitymarine sandevaluationdepositsoffshore
https://www.boem.gov/research/habitat-and-ecology/comparisons-between-marine-communities-residing-sand-shoals-and
comparisonsmarinecommunitiesresidingsand