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Gonâve Microplate
The Gonâve Microplate forms part of the boundary between the North American Plate and the Caribbean Plate. It is bounded to the west by the Cayman spreading center, to the north by the Septentrional-Oriente fault zone and to the south by the Walton fault zone and the Enriquillo-Plantain Garden fault zone. The existence of this microplate was first proposed in 1991. This has been confirmed by GPS measurements, which show that the overall displacement between the two main plates is split almost equally between the transform fault zones that bound the Gonâve microplate. The microplate is expected to eventually become accreted to the North American Plate.〔
==Geographic extent==
The Gonâve Microplate is an approximately 1,100 km long strip, consisting mainly of oceanic crust of the Cayman Trough but including island arc material at its eastern end on the western part of Hispaniola.〔 Further east a separate ''Hispaniola microplate'' has been identified. At its western end, the Gonâve Microplate is bounded by the mid-Cayman spreading centre. To the north it is bounded by the Septentrional-Oriente fault zone and to the south by a more complex strike-slip fault system that includes the Walton fault and the Enriquillo-Plantain Garden fault zone. As the northern and southern boundaries approach the eastern edge of the Caribbean Plate they become less distinct and the eastern boundary is not as well defined.
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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