Fractures of the coronoid rarely occur in isolation. They usually occur in combination with a radial head fracture, a dislocation of the elbow, or both (terrible triad of the elbow).Large coronoid fractures often are associated with persistent elbow instability even after reduction of the dislocation.
Hydrothermal Vents. Measurement of tectonic plate movements. The amount of tectonic plate movement is measured using Global Positioning System (GPS) satellites and a network of GPS receivers. This technology allows scientists to measure plate movements as small as a few millimeters per year. click here to plot REAL-TIME data and visualize tectonic plate movement.
Tiltmeter: works like a carpenter's level, and measures vertical movement along a fault. Creep meter: Measures movement along a slip-strike fault, so it measures horizontal movement along a fault. Laser ranging device: detects changes in distance to a reflector. Basically, it's a device that bounces beams off a reflector to detect fault movements. GPS satellite system: Uses a network of Earth-orbiting satellites and measures tiny vertical/horizontal movements of markers set u on the opposite sides of a fault.