Among the myriad creatures that populate our ocean, some stand out as having an outsized impact on the marine ...

CALCIUM carbonate can exist in three polymorphic forms, which in the order of their usual stabilities are calcite, aragonite and vaterite. Calcite is the most stable and the least soluble ...

Ocean acidification can negatively affect marine life, causing organisms' shells and skeletons made from calcium carbonate to dissolve. The more acidic the ocean, the faster the shells dissolve. By ...

A new publication by researchers from the Department of Earth Sciences at the University of Oxford shows that the ...

Over time, more hydrogen ions and fewer carbonate ions cause the ocean to trend towards acidity. Some marine organisms, such as oysters and corals, need calcium and carbonate — or salt molecules made ...

Coral reefs are made up of colonies of hundreds to thousands of tiny individual corals, called polyps. These marine invertebrate animals have hard exoskeletons made of calcium carbonate, and are ...

Marine environments contain some of the most diverse ecosystems on the planet ... Below a certain level of carbonate concentration, conditions become corrosive to calcium carbonate, which is used by ...

Lawrence Lowlands region. Saturated with calcium carbonate and teeming with a diversity of marine organisms, the bottom of this ancient sea received a steady deposit of fine marine sediments and ...