Minority Business. Development Agency. Mission Statement. The Minority Business Development Agency is an entrepreneurially-focused and innovative organization, committed to minority business enterprise and wealth creation.
Freebase (5.00 / 1 vote) Rate this definition: Mid-ocean ridge. A mid-ocean ridge is a general term for an underwater mountain system that consists of various mountain ranges, typically having a valley known as a rift running along its spine, formed by plate tectonics.
The massive Mid-Ocean Ridge system wraps around the globe like seams on a baseball, stretching an impressive 65,000 kilometers (40,390 miles). The majority of the system is underwater, with an average water depth to the top of the ridge of 2,500 meters (8,200 feet). Mid-ocean ridges are geologically important because they occur along divergent plate boundaries, where new ocean floor is created as the Earthâs tectonic plates spread apart.