Holocene Sedimentology and Stratigraphy of Coastal Sediments in an Arid Climate, Al Qahmah, Southern Red Sea, Saudi Arabia


Book Description

"Holocene sedimentary deposits in Al Qahmah coast, southern Red Sea, in Saudi Arabia have been accumulated on an arid siliciclastic coast in a rift tectonic setting. This study provides a detail interpretation and analysis of sedimentary facies, stratigraphy, depositional environment, and major geological processes. Two studies have been undertaken. First, petrological study of composition and texture of modern sediments and facies mapping delineate facies distribution and mechanisms of sediment transport and deposition. A unique suite of complex riverine, wave, tidal, wind, and chemical and biological processes affect the composition, texture, and distribution of the facies. Second, the depositional environments of the Holocene deposits were interpreted on the basis of detailed lithofacies analysis and lithostratigraphic correlation, along with absolute age dating, using subsurface trenching and seismic refraction tomography (SRT) and electrical resistivity tomography (ERT) methods. Two major facies, underlying carbonate and overlying siliciclastic facies, were delineated. The carbonate facies are interpreted as shallow normal marine deposits. The siliciclastic facies are marginal marine and nonmarine coastal deposits. A disconformity and an erosional unconformity are identified, across which significant changes in tectonic and climatic conditions had occurred. This study presents a detailed sedimentologic, stratigraphic, environmental, and paleoclimatic reconstruction in modern and recent arid siliciclastic coast in a rift tectonic setting"--Abstract, page iv.




Sedimentation and Tectonics in Rift Basins Red Sea:- Gulf of Aden


Book Description

Sedimentation and Tectonics in Rift Basins: Red Sea - Gulf of Aden presents new case studies and synthesises the results of recent research on the sedimentological evolution of the Red Sea - Gulf of Aden rift system. This rift basin is generally regarded as the best natural geological laboratory in the world in which to study the processes of rift formation. Uplift of the rift margins in an arid climate results in extensive three-dimensional exposures of pre- and syn-rift strata and associated structures. These serve as analogues for the understanding and hydrocarbon exploration of deeper buried rift-systems on continental margins such as the North Sea and the Atlantic margins. The Red Sea - Gulf of Aden rift is also exceptional in that its stratigraphy spans all stages from pre-rift environments, syn-rift continental to marine environments through the rift to drift transition to post-rift sea-floor spreading. The work is arranged in eight sections: following a review of the sedimentology and stratigraphy of rift basins, the magmatism and structural evolution of the Red Sea - Gulf of Aden rift is reviewed. Subsequently, new case studies are presented of the early rifting environment, syn-rift sedimentation, tectonics and diagenesis, evaporites and salt tectonics. Post-rift sediments of the axial trough are then discussed along with studies of reefs, coastal zone and shelf sediments, and the tectonic geomorphology of the rift margin escarpment. This work results from extensive new research in the rift basin largely carried out under collaborative research projects by European and Middle Eastern geologists. It will be an invaluable reference work for geoscientists in the hydrocarbon, groundwater and mineral extraction industries, as well as for researchers in university departments of earth sciences, mining and physical geography.




Holocene Marine Sedimentation in the North Sea Basin


Book Description

A special publication of the International Association of Sedimentologists This comprehensive scientific book of more than 500 pages features chapters by various authors. Holocene Marine Sedimentation in the North Sea Basin address topics that include: ripple, megaripple and sandwave bedforms in South Wales; shoreline development in St Andrews Bay, Scotland; and the origin of ridges off the Zeeland coast. Highlighted research includes: measurements of suspended sediment concentrations made at stations on a sandy intertidal zone in South Wales, as well as another study of two cores from the southern side of the Norwegian Channel concerning geotechnical properties, texture, sedimentary structures and mineralogical composition.




Rifting and Sediments in the Red Sea and Arabian Gulf Regions


Book Description

Rifting and Sediments in the Red Sea and Arabian Gulf Regions is a unique text that covers a wide range of topics related to the tectonics and geology of the Red Sea and Arabian (Persian) Gulf region. This book is a collection of invited and peer-reviewed chapters contributed by active researchers around the world. The topics covered in this book include tectonics, magmatism, and lithology, particularly in the Red Sea area. The book also delves into the sediments and evaporites of the Red Sea and Gulf. As the area around the Arabian Peninsula is prone to earthquakes, the seismic hazard estimated in the Red Sea region is also covered by several chapters. Each chapter presents new data and offers extensive lists of references for the reader to explore further. With the ongoing debates regarding the structure of the Red Sea, this book serves as an excellent resource for researchers and any individuals interested in the geology of these two unique seas.




The Persian Gulf


Book Description

This volume, although not an integrated synthesis, treats most aspects of Holocene sedimenta tion and diagenesis in the Persian Gulf, grouping 22 contributions under a single cover and in one language. Because these sediments and diagenetic minerals are comparable to those existing in many ancient sedimentary basins, their appraisal should be of value to the enlarging group of workers who interpret ancient sedimentary rocks. The essential morphological, climatic and oceanographic factors determining Holocene sedimen tation and diagenesis in the Persian Gulf are summarized in the introductory article by PURSER and SEIBOLD. These environmental controls and the overall morphology of the Persian Gulf have much in common with Shark Bay, Western Australia, described by LOGAN et al. (1970). On the other hand, the Persian Gulf is markedly different from the better known Florida and Bahamian prov inces; the floor of the Persian Gulf is gently inclined from continental shoreline to bathymetric axis (80-100 m); the Bahamian province, on the other hand, is horizontal and extremely shallow (2-10 m), with very sharply defined shelf edges surrounded by deep oceanic waters. These contrast ing architectural styles are related to different tectonic frames.




Geological Setting, Palaeoenvironment and Archaeology of the Red Sea


Book Description

This book gathers invited contributions from active researchers to provide an up-to-date overview of the geological setting of the Red Sea. It discusses aspects ranging from historical information to modern research in the Red Sea, and presents findings from rapidly advancing, emerging fields. This semi-enclosed young ocean basin provides a unique opportunity to study the development of passive continental margins in order to examine the current status of that region. In addition to studies on the Sea itself, it includes those from related fields on the littoral zone. The book is of interest to geoscientists and non-specialists alike.




Geologic Evolution of the Red Sea


Book Description

The Red Sea is an important geologic phenomenon because it affords researchers the unique opportunity to witness an ocean in the process of being born. The continental crust has broken along a complex jumble of faults and is slowly spreading apart and, with further rifting, this infant ocean will evolve into a younger version of the Atlantic. The author of this work has studied extensively the patterns produced by processes taking place in the Red Sea basin and on the adjacent continental masses, patterns that can be used to interpret older, larger, and more complex geologic features. His book describes the tectonics, structure, volcanic history, geomorphology, and economic aspects (potential for petroleum and heavy metals) of the area. This book will be of interest to students and researchers of geology, paleontology, and oceanography.




Sedimentary Basins and Petroleum Geology of the Middle East


Book Description

The wealth of petroleum has made the Middle East one of the most actively explored regions of the world. The volume of geological, geophysical and geochemical data collected by the petroleum industry in recent decades is enormous. The Middle East may be a unique region in the world where the volume of subsurface data and information exceeds that based on surface outcrop.This book reviews the tectonic and geological history of the Middle East and the regional hydrocarbon potential on a country by country basis in the context of current ideas developed through seismic and sequence stratigraphy and incorporating the ideas of global sea level change.Subsurface data have been used as much as possible to amplify the descriptions.The paleogeographic approach provides a means to view the area as a whole. While the country by country approach inevitably leads to some repetition, it enhances the value of the volume as a teaching tool and underlines some of the changing lithologies within formations carrying the same name.







Lithosphere Dynamics and Sedimentary Basins of the Arabian Plate and Surrounding Areas


Book Description

This book focuses on the links between deep earth (mantle) and shallow processes in areas of active tectonics in the Arabian Plate and Surrounding Areas. It also provides key information for energy resources in these areas. The book is a compilation of selected papers from the Task Force of the International Lithosphere Program (ILP). It comprises a set of research studies from the Middle East, North Africa and the Mediterranean domain focusing on (1) the architecture, geodynamic evolution and modelling of the Red Sea rift system and its surroundings, and tectonics and sedimentation in the Gulf of Corinth, (2) the crustal architecture and georesources of the North Algerian Offshore, (3) Reservoirs, aquifers and fluid transfers in Saudi Basins, Petroleum systems and salt tectonics in Yemen and (4) Cretaceous-Eocene foreland inversions in Saudi Arabia.