Download PDF by David Okaya, Tim Stern, Fred Davey: A Continental Plate Boundary: Tectonics at South Island, New

By David Okaya, Tim Stern, Fred Davey

ISBN-10: 0875904408

ISBN-13: 9780875904405

ISBN-10: 1118666143

ISBN-13: 9781118666142

Released by way of the yankee Geophysical Union as a part of the Geophysical Monograph sequence, quantity 175.

A Continental Plate Boundary
deals in a single position the main accomplished, updated wisdom for researchers and scholars to profit concerning the tectonics and plate dynamics of the Pacific-Australian continental plate boundary in South Island and concerning the program of recent geological and geophysical tools. It examines what occurs while convergence and translation ensue at a plate boundary by means of

  • Describing the geological and geophysical signature of a continental remodel fault;
  • Identifying the various vertical and lateral styles of deformation on the plate boundary;
  • Assessing an obvious seismicity hole at the plate boundary fault and fast-moving plate motions;
  • Comparing this plate boundary to different international convergent continental strike-slip plate boundaries;
  • Documenting the application of the double-sided, onshore-offshore seismic process for exploration of a slender continental island; and
  • Providing extra papers offering formerly unpublished results.

This quantity will turn out helpful for seismologists, tectonophysicists, geodesists and potential-field geophysicists, geologists, geodynamicists, and scholars of the deformation of tectonic plates.

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Additional info for A Continental Plate Boundary: Tectonics at South Island, New Zealand

Sample text

2004]. A dramatic orographic climate regime results from the disturbance of a westerly atmospheric circulation by the Southern Alps. Heavy rainfall (>10 m/yr) occurs on the western slopes, whereas in the east precipitation is much lighter (≤1 m/yr) and a rainshadow is developed [Griffiths and McSaveney, 1983; Henderson and Thompson, 1999]. In New Zealand’s mid-latitude setting, the mountains receive a significant proportion of their precipitation as snow and glaciers have formed. Episodes of glaciation probably began in the Late Pliocene [Suggate, 1990].

1995]. , 2001]. Lateral fault displacements of sediments away from distinctive source areas are less commonly recognised, but have potential to place important constraints on displacement rate averaged since the depositional age of the sediment. , Pleistocene-Quaternary) need sufficient displacement for deposits to have been isolated from their source areas and catchment drainage, and rate calculations are commonly hampered by a lack of precise age determination. , Miocene-Pliocene) lack knowledge of paleogeography so fault displacements can be difficult to conclusively distinguish from sedimentary transport, but their age has allowed time for greater offset which improves precision of displacement rate calculations.

Minor rift reactivation occurred and new passive margins formed adjacent to a spreading ridge farther south (Plate 1). , 2000]. Basement terranes represent elongate markers that are now deformed by movement at the Australia-Pacific plate boundary, and are distinctly curved adjacent to the Alpine Fault with geometry sympathetic with distributed dextral shear across the plate boundary. The broad curvature of basement terranes, combined with the apparent Alpine Fault offset of ca. 470 km, is consistent with the inference based upon marine magnetic anomalies that around 800 to 850 km of Australia-Pacific plate motion occurred during the Cenozoic (Figures 2, 3) [King, 2000; Sutherland, 1999b].

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A Continental Plate Boundary: Tectonics at South Island, New Zealand by David Okaya, Tim Stern, Fred Davey


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