Published August 13, 1999
by Cambridge University Press .
Written in English
|Contributions||J. R. Cann (Editor), H. Elderfield (Editor), A. S. Laughton (Editor)|
|The Physical Object|
|Number of Pages||310|
This book collects multidisciplinary chapters on the most important problems that arise at mid-ocean ridges. The mid-ocean ridge system is the longest continuous feature of the earth's surface. It is where the great majority of ocean floor is created Cited by: 3. Two well-studied mid-ocean ridges within the global system are the Mid-Atlantic Ridge and the East Pacific Rise. The Mid-Atlantic Ridge runs down the center of the Atlantic Ocean, slowly spreading at a rate of 2 to 5 centimeters ( to 2 inches) per year and forming a rift valley that is about the depth and width of the Grand Canyon. Cambridge Core - Structural Geology, Tectonics and Geodynamics - Mid-Ocean Ridges - by Roger SearleCited by: Where plates diverge from each other, molten magma flows upward between the plates, forming mid-ocean ridges, underwater volcanoes, hydrothermal vents, and new ocean floor crust. Transform boundaries are faults that connect two areas where plates are converging or diverging. The edges of these continental boundaries usually form zig-zag patterns.
Most divergent boundaries are located along mid-ocean oceanic ridges (although some are on land). The mid-ocean ridge system is a giant undersea mountain range, and is the largest geological feature on Earth; at 65, km long and about km wide, it covers 23% of Earth’s surface (Figure ). The mid-ocean ridges of the world are connected and form the Ocean Ridge, a single global mid-oceanic ridge system that is part of every ocean, making it the longest mountain range in the world. The continuous mountain range is 65, km (40, mi) long (several times longer than the Andes, the longest continental mountain range), and the total length of the oceanic ridge system is 80, km. At divergent boundaries, sometimes called constructive boundaries, lithospheric plates move away from each other. There are two types of divergent boundaries, categorized by where they occur: . About this book. Published by the American Geophysical Union as part of the Geophysical Monograph Series, Volume of 31 presentations ranging in subject matter from melt segregation and melt focusing processes beneath mid-ocean ridges, to the structures of oceanic crust and ophiolite analogues, morphological variations in the accretion.