Anoxic event: ocean oxygen depletion and its geological record Anoxic event An anoxic event is a prolonged loss of oxygen in parts of the ocean. This article explains causes, geological evidence, historical examples, modern dead zones and why these events…
Continental shelf: definition, formation, ecology and legal importance Continental shelf The continental shelf is the submerged margin of a continent. This article covers its physical form, geological origins, ecology, resources, human uses and legal status under marit…
