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・ Cobb County Airport
・ Cobb County Center for Excellence in the Performing Arts
・ Cobb County Parks, Recreation and Cultural Affairs Department
・ Cobb County Public Library System
・ Cobb County School District
・ Cobb County, Georgia
・ Cobb Divinity School
・ Cobb Education Television
・ Cobb Electric Membership Corporation
・ Cobb Energy Performing Arts Centre
・ Cobb Field
・ Cobb Galleria
・ Cobb Galleria Centre
・ Cobb Highway
・ Cobb Hill
Cobb hotspot
・ Cobb House
・ Cobb House (Grove Hill, Alabama)
・ Cobb Island (Maryland)
・ Cobb Memorial Hospital
・ Cobb Memorial Library
・ Cobb Mountain
・ Cobb Peak
・ Cobb Peak (Idaho)
・ Cobb Place
・ Cobb Point Bar Light
・ Cobb Power Station
・ Cobb Reservoir
・ Cobb River
・ Cobb River (Minnesota)


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Cobb hotspot : ウィキペディア英語版
Cobb hotspot

The Cobb hotspot is a volcanic hotspot located off the Oregon/Washington coast of the United States. The hotspot is at the Juan de Fuca Ridge, and has made the Cobb-Eickelberg Seamount chain. The Axial Seamount is the hotspot's most recent eruptive center, which last erupted in 1998.〔 〕
The central ridge is thicker than the surrounding crust by one to two km and may be accumulated buildup from the hotspot, which is essentially an underwater volcano with a root twenty to forty kilometers in diameter reaching a depth of beneath the volcano. The magma flows at rate of 0.3 to 0.8 m³/s. The caldera is below sea level.〔 〕〔http://kiska.giseis.alaska.edu/input/west/presentations/agu2001_presentation.pdf〕
==See also==

*Geology of the Pacific Northwest
*Cobb Seamount
*Axial Seamount

抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
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