Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 154

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Author: Damien Delvaux
Publisher:
ISBN:
Category :
Languages : en
Pages : 153

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Author: G. Yirgu
Publisher: Geological Society of London
ISBN: 9781862391963
Category : Nature
Languages : en
Pages : 344

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The seismically and volcanically active East African Rift System is an ideal laboratory for continental break-up processes: it encompasses all stages of rift development. Its northernmost sectors within the Afar volcanic province include failed rifts, nascent sea-floor spreading, and youthful passive continental margins associated with one or more mantle plumes. A number of models have been proposed to explain the success and failure of continental rift zones, but there remains no consensus on how strain localizes to achieve rupture of initially 125-250 km-thick plates, or on the interaction between the plates and asthenospheric processes. This collection of papers provides new structural, stratigraphic, geochemical and geophysical data and numerical models needed to resolve fundamental questions concerning continental break-up and mantle plume processes. The focus is on how mantle melt intrudes and is distributed through the plate, and how this magma intrusion process controls along-axis segmentation and facilitates break-up.

Author: R. W. Girdler
Publisher: Elsevier
ISBN: 1483257150
Category : Science
Languages : en
Pages : 187

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Developments in Geotectonics, 7: East African Rifts focuses on the movements, structure, and behavior of the East African rift system. The selection first offers information on the surface structure and plate tectonics of Afar; tectonic and magmatic significance of volcanism in the Afar depression; and preliminary interpretation of the gravity field of Afar, northeast Ethiopia. Discussions focus on crustal models of Afar based on gravity and seismic data, tectonics, volcanism, geological setting, and crustal extension. The text also elaborates on the gravity survey of the central part of the Ethiopian Rift Valley and an aeromagnetic survey of the Afar triangle of Ethiopia. The book examines the arrangement and development of continental rift zones, East African rift development, and the seismicity of the East African rift system. Topics include earthquake mechanisms, seismicity, and the main categories of rift zones. The manuscript is a dependable reference for readers interested in the East African rifts.

Author: David G. Roberts
Publisher: Elsevier
ISBN: 0444563636
Category : Science
Languages : en
Pages : 566

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Expert petroleum geologists David Roberts and Albert Bally bring you Regional Geology and Tectonics: Phanerozoic Rift Systems and Sedimentary Basins, volume two in a three-volume series covering Phanerozoic regional geology and tectonics. Experience in analyzing and assessing rifts—locations where the Earth’s outer shell and crust have been stretched over time by seismic activity—is critical for you as an exploration geologist in identifying Earth’s most lucrative hydrocarbon locations in which extraction is both efficient and safe. Vast compilations of related industry data present regional seismic lines and cross sections, and summaries of analogue and theoretical models are provided as an essential backdrop to the structure and stratigraphy of various geological settings. Named a 2013 Outstanding Academic Title by the American Library Association's Choice publication A practical reference for petroleum geologists that discusses the importance of rift systems and the structural evolution of the Earth Analyses of active rifts in East Africa, China, Siberia, the Gulf of Suez, and the Russian Arctic provide immediately implementable petroleum exploration applications in regions heavily targeted by oil & gas companies Presents overviews of sequence stratigraphy in rifts and structural controls on clastic and carbonate sedimentation—critical to the exact mapping of the most lucrative hydrocarbon locations by exploration geologists

Author: Celia Nyamweru
Publisher:
ISBN:
Category : Great Rift Valley
Languages : en
Pages : 142

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Author: Peter M. LeTourneau
Publisher: Columbia University Press
ISBN: 0231111622
Category : Science
Languages : en
Pages : 228

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The breakup of the Pangean supercontinent in the Triassic-Jurassic age left great rift basins containing an extraordinary record of the physical and biological conditions which precipitated a major extinction event at the time. These basins collectively form a rift province called the Central Atlantic Margin, which spans more than 45 degrees of paleolatitude and records over 35 million years of Earth history. Leading experts present a detailed review of the rift province's geology, paleobiology, and geophysics. This extensive two-volume work offers in-depth coverage of the North American components of the Central Atlantic Magmatic Province. In volume 1, leading researchers give thorough reviews and highlight recent advances in our understanding of the structural geology, tectonics, and volcanism of the Central Atlantic Magmatic Province.

Author: Athanas Simon Macheyeki
Publisher: Elsevier
ISBN: 0323956432
Category : Technology & Engineering
Languages : en
Pages : 366

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The East African Rift System: Geodynamics and Natural Resource Potentials provides state-of-the-art knowledge and skills on how to explore, model, and extract the resources, using the East African Rift System (EARS) as a model. Each aspect to be discussed in the East African Rift System shall have its equivalent case study and readers interested in each rift of the world will find something connected or linked to his/her rift system of interest, be it a sub-chapter on earthquakes, geothermal energy models, etc. The East African Rift System: Geodynamics and Natural Resource Potentials also describes rifting models of all other known rifts (especially continental rifts) of the world such as the Basin and Range Province, Rio Grande (USA); Rhine Graben (France and Germany); the Tibetan Rohai (Tibet); the Shaanxi Bohai (China); Lake Baikal (Russia); North Island (Australia); and the Aegean Sea Rift (Turkey). Key aspects to be presented shall be: rift type, rift age, rift physical dimensions, geothermal gradient models, natural resources, and models of exploration. Connects the science of rift systems to their economic potentials using the East African Rift System as the prime example Includes discussions and case studies from rift systems around the world Features chapters dedicated to natural resources, such as mineral deposit types (Au, He, REE, U) and the basic principles of their exploration?

Author: Duncan John Hutt
Publisher:
ISBN:
Category :
Languages : en
Pages : 324

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Author:
Publisher:
ISBN:
Category : Geology
Languages : en
Pages : 0

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