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Author :
Release : 2009
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Book Synopsis Role of Magmatism in Continental Lithosphere Extension by :
Download or read book Role of Magmatism in Continental Lithosphere Extension written by . This book was released on 2009. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Release : 2008
Genre :
Kind : eBook
Book Rating : /5 ( reviews)
Book Synopsis Role of Magmatism in Continental Lithosphere Extension by :
Download or read book Role of Magmatism in Continental Lithosphere Extension written by . This book was released on 2008. Available in PDF, EPUB and Kindle. Book excerpt: The dynamics and evolution of rifts and continental rifted margins have been the subject of intense study and debate for many years and still remain the focus of active investigation. The 2006 AGU Fall Meeting session 'Extensional Processes Leading to the Formation of Basins and Rifted Margins, From Volcanic to Magma-Limited' included several contributions that illustrated recent advances in our understanding of rifting processes, from the early stages of extension to breakup and incipient seafloor spreading. Following this session, we aimed to assemble a multi-disciplinary collection of papers focussing on the architecture, formation and evolution of continental rift zones and rifted margins. This Tectonophysics Special Issue 'Role of magmatism in continental lithosphere extension' comprises 14 papers that present some of the recent insights on rift and rifted margins dynamics, emphasising the role of magmatism in extensional processes. The purpose of this contribution is to introduce these papers.
Author : T.J. Wright
Release : 2016-09-06
Genre : Science
Kind : eBook
Book Rating : 295/5 ( reviews)
Book Synopsis Magmatic Rifting and Active Volcanism by : T.J. Wright
Download or read book Magmatic Rifting and Active Volcanism written by T.J. Wright. This book was released on 2016-09-06. Available in PDF, EPUB and Kindle. Book excerpt: A major rifting episode began in the Afar region of northern Ethiopia in September 2005. Over a ten-day period, c. 2.5 km3 of magma were intruded along a 60 km-long dyke separating the Arabian and Nubian plates. Over the next five years, a further 13 dyke intrusions caused continued extension, eruptions and seismicity. This activity led to a renewed international focus on the role of magmatism in rifting, with major international collaborative projects working in Afar and Ethiopia to study the ongoing activity and to place it in a broader context. This book brings together articles that explore the role of magmatism in rifting, from the initiation of continental break-up through to full seafloor spreading. We also explore the hazards related to rifting and the associated volcanism. This work has implications for our understanding of how continents break-up and the associated distribution of resources in rift basins and continental margins.
Author : P.A. Ziegler
Release : 2015-12-04
Genre : Science
Kind : eBook
Book Rating : 087/5 ( reviews)
Book Synopsis Geodynamics of Rifting by : P.A. Ziegler
Download or read book Geodynamics of Rifting written by P.A. Ziegler. This book was released on 2015-12-04. Available in PDF, EPUB and Kindle. Book excerpt: 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 "active" as against "passive" 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.
Author : Bryan C. Storey
Release : 1992
Genre : Continental margins
Kind : eBook
Book Rating : 419/5 ( reviews)
Book Synopsis Magmatism and the Causes of Continental Break-up by : Bryan C. Storey
Download or read book Magmatism and the Causes of Continental Break-up written by Bryan C. Storey. This book was released on 1992. Available in PDF, EPUB and Kindle. Book excerpt: The association between lithospheric extension, continental break-up, mantle plumes and massive bursts of igneous activity is well recognised, but their causal relationship remains controversial. The main aim of this volume is to integrate relevant tectonic, geochemical and geophysical data which will lead to a better understanding of the causal relationships between magmatism and continental break-up. The first section is concerned mainly with models of magma generation and breakup processes. The remaining sections present examples from the geological record.
