Sediments Of The Northern Arabian Sea
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| Author | : Richard A. Stewart |
| Publisher | : |
| Total Pages | : 42 |
| Release | : 1966 |
| Genre | : Geology |
| ISBN | : |
The report contains a discussion of temperature, salinity, and bottom sediment data collected during USS REQUISITE oceanographic survey in northern Arabian Sea during February and March 1961. The regional setting and the marine environment of the area are presented; field and laboratory sediment analyses procedures are explained; and figures showing the distribution of median grain size, clay mineral provinces, and percentages of calcium carbonate, organic carbon, and quartz in sand-size fraction are included. Heavy mineralogy of several sediment samples are given in tables. (Author).
| Author | : Margaret Leinen |
| Publisher | : Springer Science & Business Media |
| Total Pages | : 904 |
| Release | : 2012-12-06 |
| Genre | : Science |
| ISBN | : 9400909950 |
The NATO Advanced Research Workshop on "Paleoclimatology and Paleometeorology: Modem and Past Patterns of Global Atmospheric Transport" (held at Oracle, Arizona, USA from November 17-19, 1987) brought together atmospheric chemists, physicists, and meteorologists who study the origin and transport of modem-day mineral and biological aerosols with geologists and paleobotanists who study the sedimentary record of eolian and hydrologic processes along with modelers who study and conceptualize the processes influencing atmospheric transport at present and in the past. Presentations at the workshop provided a guide to our present knowledge of the entire spectrum of processes and phenomena important to the generation, transport, and deposition of eolian terrigenous material that ultimately becomes part of the geologic record and the modeling techniques that used to represent these processes. The presenta tions on the geologic record of eolian deposition documented our present understanding of the na~e and causes of climate change on time scales of the last glacial ages (tens of thousands of years) to time scales over which the arrangement of continents, mountains, and oceans has changed sub stantially (tens of millions of years). There has been a growing recognition of the importance of global climatic changes to the future well-being of humanity. In particular, the climatic response to human alterations to the earth's surface and chemical composition has led to concern over the agricultural, ecological, and societal impacts of such potential global changes.
| Author | : Bruce H. Purser |
| Publisher | : Springer Science & Business Media |
| Total Pages | : 470 |
| Release | : 2012-12-06 |
| Genre | : Science |
| ISBN | : 3642655459 |
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.
| Author | : Laith A. Jawad |
| Publisher | : Springer Nature |
| Total Pages | : 1377 |
| Release | : 2021-03-30 |
| Genre | : Science |
| ISBN | : 3030515060 |
The Arabian Seas Marine Region encompasses marine areas from Djibouti to Pakistan, including the northern part of Somalia, the Red Sea, the Arabian/Persian Gulf, and parts of the Arabian Sea. Human pressures on the coastal and marine environments are evident throughout the region, and have resulted in harmful environmental effects. Oil and domestic, urban and industrial pollutants in several areas of this part of the world have caused local habitat degradation, eutrophication and algal blooms. Further, coastal landfill, dredging, and sedimentation, as well as nutrient and sediment runoff from phosphate mining, agriculture and grazing, and reduction in freshwater seepage due to groundwater extraction are all contributing to the degradation of coastal environments. This book discusses aspects not covered in other books on the region, which largely focus on marine biodiversity, and examines several environmental challenges that are often ignored, but which have a significant impact on the environment. Evaluating the status quo, it also recommends conservation measures and examines the abiotic factors that play a major main role in the environmental changes. Lastly, the book addresses the biodiversity of the area, providing a general context for the conservation and management measures discussed.
| Author | : Peter D. Clift |
| Publisher | : Geological Society of London |
| Total Pages | : 544 |
| Release | : 2002 |
| Genre | : Science |
| ISBN | : 9781862391116 |
The Arabian Sea region has several features that make it the best area for studies of climate and palaeoceanographic responses to tectonic activity, most notably in the context of the South Asian monsoon and its relationship to the growth of high topography in the adjacent Himalayas and Tibet. The papers range from high resolution, holocene palaeoceanographic studies of the Pakistan margin to regional tectonic reconstructions of the ocean basin and surrounding margins throughout the Cenozoic.
| Author | : Frank Kenneth McKinney |
| Publisher | : Columbia University Press |
| Total Pages | : 336 |
| Release | : 2007 |
| Genre | : Nature |
| ISBN | : 9780231132428 |
The northern Adriatic Sea is transient, most recently flooded between 18,000 to 6,000 years ago following the last glacial maximum, and it will drain again with the onset of the next glacial period. Despite its youth, uniformly shallow depth, and flat sediment floor, it hosts a broad range of bottom-dwelling sea life ecologically resembling communities that have existed in the shallow sea since the Ordovician Period, some 500 million years ago. The northern Adriatic is a natural laboratory in which to test hypotheses concerning the shift from the Paleozoic prevalence of stationary suspension-feeders living on the surface of the sediment and feeding from the overlying waters to, more recently, bottom-dwelling animals living dominantly in or actively seeking temporary refuge within the sediments of the sea floor, regardless of where they feed. Across the northern Adriatic Sea there is an ecological gradient from Paleozoic-style surface-dwelling communities in the east to "modern" communities living almost exclusively within the sediments in the west. Therefore, within the relatively small area of the northern Adriatic, there is an existing gradient similar to the profound ecological change from Paleozoic to more modern marine life. During the early twentieth century, life at the bottom of the Adriatic was systematically sampled from the east to the west coasts, revealing the most common animals and their distribution. In this book Frank K. McKinney combines these findings with more recent, local studies to understand better the ecological structure of the Adriatic's floor. Specifically, he uses the predation, sediment textures and deposition rates, currents, and nutrients of northern Adriatic bottom communities to evaluate hypotheses concerning the conditions that drove surface-dwelling animals to seek long-term refuge within sea floor sediment. Though the northern Adriatic has been well studied since the advent of the marine sciences, it is not widely known by paleontologists. With this volume, McKinney illuminates what this "living laboratory" can tell us about the evolution of multicellular life on Earth.
| Author | : B.H. Purser |
| Publisher | : Springer Science & Business Media |
| Total Pages | : 700 |
| Release | : 2012-12-06 |
| Genre | : Science |
| ISBN | : 9401149305 |
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.
| Author | : Jerry D. Wiggert |
| Publisher | : John Wiley & Sons |
| Total Pages | : 1037 |
| Release | : 2013-05-09 |
| Genre | : Science |
| ISBN | : 111867166X |
Published by the American Geophysical Union as part of the Geophysical Monograph Series, Volume 185. Indian Ocean Biogeochemical Processes and Ecological Variability provides a synthesis of current knowledge on Indian Ocean biogeochemistry and ecology and an introduction to new concepts and topical paradigm challenges. It also reports on the development of more extensive/frequent observational capacity being deployed in the Indian Ocean. This represents the first collection of syntheses that emphasize a basin-wide perspective, and the contributing authors include some of the most esteemed oceanographers and Indian Ocean experts in the world. The volume is derived from invited plenary talks that were presented at the initial Sustained Indian Ocean Biogeochemistry and Ecosystem Research (SIBER) workshop held at the National Institute of Oceanography (NIO) in Goa, India, in October 2006. The volume discusses The overlying physical processes set by monsoonal forcing and how these control biological production and variability Nutrient cycling and limitation Pelagic carbon cycling and air-sea exchange Benthic biogeochemistry and ecology The impact of climate and human activities on biogeochemistry and ecosystems. The readership for this book will consist of academic and governmental researchers interested in exploring how oceanographic, atmospheric, and hydrological processes combine to establish the environmental setting that supports and drives the pelagic system and which are especially relevant to understanding the complex biogeochemical and ecological interactions in the Indian Ocean.
| Author | : Christopher G. St. C. Kendall |
| Publisher | : John Wiley & Sons |
| Total Pages | : 757 |
| Release | : 2011-02-18 |
| Genre | : Science |
| ISBN | : 144439231X |
This book is part of the International Association of Sedimentologists (IAS) Special Publications. The Special Publications from the IAS are a set of thematic volumes edited by specialists on subjects of central interest to sedimentologists. Papers are reviewed and printed to the same high standards as those published in the journal Sedimentology and several of these volumes have become standard works of reference. This volume commemorates the eclectic research of Douglas James Shearman into evaporites, which was initiated by his studies of the prograding UAE coastal sabkhas or salt flats that incorporate evaporite minerals which displace and replace earlier carbonate sediments. His subsequent proselytization of the study of ancient evaporites in sedimentary sections all over the world led to fundamental advances in our understanding of arid zone carbonate sedimentology. The papers presented here are based on presentations made in Abu Dhabi, UAE 12-14th October 2004 and 7th –8th November 2006. They provide a retrospective from the 1960's and 70's of Holocene evaporites and carbonates, recapturing Shearman's contribution by revisiting the Holocene coastal evaporite and carbonate sediments of the Arabian/Persian Gulf from Abu Dhabi, Qatar, and Oman. The first set of papers considers these sediments from the perspective of their coastal geomorphology, sedimentary character and their geochemistry. Later papers examine the significance of these settings in the ancient geological section world-wide, including examples from the Mesozoic-Cenozoic of the Moroccan Atlantic margin and the Upper Jurassic Arab Formation of the Arabian Gulf.
| Author | : A.E.M. Nairn |
| Publisher | : Elsevier |
| Total Pages | : 979 |
| Release | : 1997-12-11 |
| Genre | : Science |
| ISBN | : 008054083X |
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.
