Geodynamics of Rifting

Geodynamics of Rifting

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This volume contains papers giving an interdisciplinary review of 12 major rift systems from North and South America, Africa, Europe and Asia. These papers are written by an international group of academic and industrial specialists each of whom is most knowledgeable about the respective rift. The analyzed rifts were selected on the basis of availability of an as-complete-as-possible geological and geophysical data base. Thirteen papers deal with geodynamic processes governing the evolution of rifts. A comprehensive digest of the available stratigraphic, structural, geophysical and petrological data, together with an extensive list of references, is provided for each of the analyzed rift systems. The megatectonic setting and dynamics of evolution of each basin is discussed. Geodynamic models are tested against the record of the analyzed rifts. The question of qactiveq as against qpassiveq rifting is addressed. The rifts analyzed range in age from Precambrian to Recent and cover a wide spectrum of megatectonic settings. There is discussion of the evolution of rifts in a plate-tectonic frame. The case histories are followed by discussions addressing the global setting of rifts and geodynamic processes active during the development of rifted basins.Figure 2c shows mantle normalised trace element variation diagrams for typical alkali basalts from the oceanic islands of ... In view of the primitive geochemical characteristics of the mafic magmas (MgO agt; 7%, Ni agt; 150 ppm, Cr agt; 250 ppm), thisanbsp;...


Title:Geodynamics of Rifting
Author: P.A. Ziegler
Publisher:Elsevier - 2015-12-04
ISBN-13:

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