North Bismarck plate

North Bismarck plate
The relationships of the presently inactive North Bismarck plate (red shading). While the map relates to a 2003 model where it was proposed to be still active, it is reasonably accurate compared to current understanding.[1][2]
TypeMinor
Movement1north-west
Speed1nil independent of Pacific plate which has 96 mm/year
FeaturesPacific Ocean
1Relative to the African plate

The North Bismarck plate is a small tectonic plate located in the Bismarck Sea off the northeast coast of New Guinea. It is currently regarded as a relic or inactive plate by most.[3][2] At one time it was called the Manus plate, but this term was later used for a modelled microplate at the south east boundary of the North Bismarck plate.[1]: 22 

  1. ^ a b Bird, P. (2003). "An updated digital model of plate boundaries". Geochemistry, Geophysics, Geosystems. 4 (3): 1027. Bibcode:2003GGG.....4.1027B. doi:10.1029/2001GC000252.
  2. ^ a b Holm, RJ; Rosenbaum, G; Richards, SW (1 May 2016). "Post 8 Ma reconstruction of Papua New Guinea and Solomon Islands: Microplate tectonics in a convergent plate boundary setting". Earth-Science Reviews. 156: 66–81. doi:10.1016/j.earscirev.2016.03.005.
  3. ^ Weiler, PD; Coe, RS (2000). "Rotations in the actively colliding Finisterre Arc Terrane: paleomagnetic constraints on Plio-Pleistocene evolution of the South Bismarck microplate, northeastern Papua New Guinea". Tectonophysics. 316 (3–4): 297–325. doi:10.1016/S0040-1951(99)00259-0.

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