Silica cycleCycling of silica from the marine environment. Silicon typically happens in character as silicon dioxide (SiO2), also known as silica. It cycles in the maritime environment, entering primarily via riverine runoff. Silica is removed from the ocean by organisms for instance diatoms and radiolarians that use an amorphous method https://socialcreditu.com/post/11284_nickel-titanium-nitinol-a-shape-memory-alloy-with-applications-in-medical-stents.html