North American‐Eurasian Plate Boundary in northeast Asia

The intracontinental portion of the boundary between the North American and Eurasian plates can be identified ort the basis of seismicity, recent tectonics, and earthquake focal mechanisms. The simplest plate geometry that can explain these data involves a North American-Eurasian boundary that extends from the Nansen ridge through a broad zone of deformation in northeast Asia to the Sea of Okhotsk and thence southward through Sakhalin and Hokkaido to a triple junction in the Kuril-Japan trench. Such a configuration can account quantitatively for the slip vectors derived from earthquake mechanisms in Sakhalin and Hokkaido. On the basis of new slip vector data the North American-Eurasian angular velocity vector is revised only slightly from previous determinations. The intracontinental plate boundary is diffuse and may be controlled by ancient plate sutures. Deformation within about 10° of the rotation pole, which lies very near the boundary, cannot be modeled by rigid plate tectonics. These characteristics of intracontinental plate boundaries are related to the greater thickness and heterogeneity of continental lithosphere and to the influence of continents on the plate tectonic driving forces.

[1]  J. Dewey,et al.  Plate Tectonics , 2018, Foundations of Engineering Geology.

[2]  Donald W. Forsyth,et al.  On the Relative Importance of the Driving Forces of Plate Motion , 1975 .

[3]  P. Molnar,et al.  Cenozoic Tectonics of Asia: Effects of a Continental Collision: Features of recent continental tectonics in Asia can be interpreted as results of the India-Eurasia collision. , 1975, Science.

[4]  V. Cormier.  Tectonics near the junction of the Aleutian and Kuril-Kamchatka arcs and a mechanism for middle tertiary magmatism in the Kamchatka Basin , 1975 .

[5]  S. Solomon,et al.  Seismic Constraints on Ocean-Ridge Mantle Structure: Anomalous Fault-Plane Solutions from First Motions , 1974 .

[6]  S. Solomon,et al.  Some simple physical models for absolute plate motions , 1974 .

[7]  T. Jordan,et al.  Numerical Modelling of Instantaneous Plate Tectonics , 1974 .

[8]  V. S. Rozhdestvenskiy.  Strike-slip faults in the Vostochnyy range of Shmidt peninsula on Sakhalin , 1973 .

[9]  Sean C. Solomon,et al.  Shear wave attenuation and melting beneath the Mid-Atlantic Ridge , 1973 .

[10]  D. Forsyth.  Anisotropy and the structural evolution of the oceanic upper mantle. , 1973 .

[11]  P. Molnar,et al.  Fault plane solutions of shallow earthquakes and contemporary tectonics in Asia , 1973 .

[12]  H. Hotta,et al.  Seismic Refraction and Reflection Evidence Supporting Plate Tectonics in Hokkaido , 1973 .

[13]  J. Coulomb,et al.  Sea Floor Spreading and Continental Drift , 1972 .

[14]  C. G. Chase.  The N Plate Problem of Plate Tectonics , 1972 .

[15]  M. Churkin.  Western Boundary of the North American Continental Plate in Asia , 1972 .

[16]  W. C. Pitman,et al.  Sea-Floor Spreading in the North Atlantic , 1972 .

[17]  W. J. Morgan,et al.  Plate Motions and Deep Mantle Convection , 1972 .

[18]  M. Talwani,et al.  Reykjanes ridge crest: A detailed geophysical study , 1971 .

[19]  武男 森谷.  日高山脈地震(1970年1月21日)の余震活動 , 1971 .

[20]  T. Atwater.  Implications of Plate Tectonics for the Cenozoic Tectonic Evolution of Western North America , 1970 .

[21]  H. S. Fleming,et al.  The Gibbs Fracture Zone: A double fracture zone at 52°30′N in the Atlantic Ocean , 1970 .

[22]  W. T. Horsfield,et al.  Transform Faulting along the De Geer Line , 1970, Nature.

[23]  D. McKenzie,et al.  Plate Tectonics of the Mediterranean Region , 1970, Nature.

[24]  A. Karasik,et al.  The active rift system of the Arctic Ocean , 1969 .

[25]  N. A. Florensov.  Rifts of the Baikal mountain region , 1969 .

[26]  Xavier Le Pichon,et al.  Sea‐floor spreading and continental drift , 1968 .

[27]  W. J. Morgan,et al.  Rises, trenches, great faults, and crustal blocks , 1968 .

[28]  G. Johnson.  North atlantic fracture zones near 53 , 1967 .

[29]  L. Sykes.  Mechanism of earthquakes and nature of faulting on the mid‐oceanic ridges , 1967 .

[30]  G. Johnson,et al.  Bathymetry of the north Greenland Sea , 1966 .

[31]  Y. M. Pushcharovskiy.  The tectonics of Sakhalin , 1965 .

[32]  L. Sykes.  The seismicity of the Arctic , 1965 .

[33]  D. B. Slemmons,et al.  Catalog of Nevada earthquakes, 1852-1960 , 1965 .

[34]  J. Hodgson,et al.  3 – SEISMICITY OF THE ARCTIC , 1965 .

[35]  J. Proudman.  International Union of Geodesy and Geophysics , 1948, Nature.