Download or read book Interdisciplinary Approaches to Geoscience on the North East Atlantic Margin and Mid atlantic Ridge written by N. H. Kenyon and published by . This book was released on 2001 with total page 104 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Interdisciplinary Approaches to Geoscience on the North East Atlantic Margin and Mid Atlantic Ridge written by and published by . This book was released on 2001 with total page 104 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Interdisciplinary Approaches to Geoscience on the North East Atlantic Margin and Mid Atlantic Ridge written by N. H. Kenyon and published by . This book was released on 2001 with total page 158 pages. Available in PDF, EPUB and Kindle. Book excerpt: The areas visited during the 10th Training-through-Research Programme were the Portuguese Margin, the Gulf of Cadiz, the Lucky Strike area of the Mid-Atlantic Ridge, the Rockall Trough, the Southern Faeroe margin, and the Varring Plateau (Norwegian margin). The investigations were aimed atstudying such geological processes as neotectonics, fluid migration and escape, sediment processes in canyons and sediment reworking and benthic biology in areas swept by deep-sea bottom currents as well as hydrothermal manifestations on mid-ocean ridges. A seismic and sidescan survey of the Marques de Pombal structure (Portuguese margin) allowed a better understanding of a fault system known here from previous studies such as the ARRIFAN0 and BIGSET projects. The fault pattern has been mapped and acoustic images have helped to evaluate the status of their activity. The Marques de Pombal structure showed little evidence of recent activity and is being covered by sediments. Shallow slides found in the vicinity of the structure may, however, indicate some occasional activity disturbing the overlying sedimentary cover. The Pereira de Sousa fault was found to be much more active. Six new mud volcanoes were discovered and studied in the Gulf of Cadiz. Most of them were proved to be recently active. The mud volcanism of the Gulf of Cadiz can be considered as two characteristic regions with different mud breccia lithological composition. Several types of lava sulphite ores sampled during the Azores campaign of Leg 2 allowed a better understanding of volcanic evolution and associated processes of this area. A short 3.5 kHz survey across the Porcupine Seabight mouth, combined with existing swath bathymetry data and a few cores from the area, confirmed the findings of the TTR-7 cruise that the Gollum channel system is currently inactive. The study of a canyon on the northeastern Rockall Trough margin showed that the system is inactive at the present time and the last pulse of active downslope sediment transport took place in immediate pre-Holocene time. Debris flows were found mostly on the flanks of the canyon while the axial zone showed numerous signs of erosion. Sand was not particularly common in the studied area. It is suggested that significant amounts of sand are trapped in the canyon head, possibly due to slumps blocking the narrower waist area. Abundant traces of seabed erosion found immediately beyond the canyon mouth indicate that this area is a bypass zone and sand deposition may occur further into the canyon mouth indicate that this area is a bypass zone and sand deposition may occur further into the basin plain. An extensive collection of TV-guided grab samples and seafloor video records, obtained from sites in the Northern Rockall Trough, Wyville-Thomson Ridge and Southern Faeroe Plateau, provided GOOd insight on the distribution of bottom fauna, including deep-water corals, and of coarse glaciagenie debris. New data on a BSR distribution pattern were obtained on the southeastern part of the Verring Plateau and they suggest that the formation of the Storegga Slide was not directly related to the dissolution of gas hydrates. The investigation also provided a new insight into gas hydrate formation and distribution in the area.
Download or read book Interdisciplinary Geoscience Research on the North East Atlantic Margin Mediterranean Sea and Mid Atlantic Ridge Preliminary Results of Investigations During the TTR 12 Cruise of RV Professor Logachev June August 2002 written by and published by . This book was released on 2003 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Interdisciplinary Geoscience Research on the North East Atlantic Margin Mediterranean Sea and Mid Atlantic Ridge written by N. H. Kenyon and published by . This book was released on 2003 with total page 160 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Geology of the Atlantic Ocean written by Kenneth O. Emery and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 1063 pages. Available in PDF, EPUB and Kindle. Book excerpt: The explosion of interest, effort, and information about the ocean since about 1950 has produced many thousand scientific articles and many hun dred books. In fact, the outpouring has been so large that authors have been unable to read much of what has been published, so they have tended to concentrate their own work within smaller and smaller subfields of oceanog raphy. Summaries of information published in books have taken two main paths. One is the grouping of separately authored chapters into symposia type books, with their inevitable overlaps and gaps between chapters. The other is production of lightly researched books containing drawings and tables from previous pUblications, with due credit given but showing assem bly-line writing with little penetration of the unknown. Only a few books have combined new and previous data and thoughts into new maps and syntheses that relate the contributions of observed biological, chemical, geological, and physical processes to solve broad problems associated with the shape, composition, and history of the oceans. Such a broad synthesis is the objective of this book, in which we tried to bring together many of the pieces of research that were deemed to be of manageable size by their originators. The composite may form a sort of plateau above which later studies can rise, possibly benefited by our assem bly of data in the form of new maps and figures.
Download or read book Geology and geophysics in the northeast Atlantic and on the Mid Atlantic Ridge written by and published by . This book was released on 1981 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Ocean Basins and Margins written by Alan Nairn and published by Springer Science & Business Media. This book was released on 2013-03-14 with total page 614 pages. Available in PDF, EPUB and Kindle. Book excerpt: 1. A Model for the North Atlantic.- 2. The Geology of the Bahama-Blake Plateau Region.- 3. The Continental Margin of Eastern North America, Florida to Newfoundland.- 4. The Northeastward Termination of the Appalachian Orogen.- 5. An Outline of the Geology of the Atlantic Coast of Greenland.- 6. The Scandinavian Caledonides.- 7. The Geology of the Southern Termination of the Caledonides.- 8. The Geology of the Western Approaches.- 9. The Geology and Sedimentation History of the Bay of Biscay.- 10. Geology of West Africa and Canary and Cape Verde Islands.- 11. Cenozoic to Recent Volcanism in and.
Download or read book The Natural Environment of the Mid Atlantic Ridge written by Teresa Radziejewska and published by Springer Nature. This book was released on with total page 140 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Deep water Cold Seeps Sedimentary Environments and Ecosystems of the Black and Tyrrhenian Seas and the Gulf of Cadiz written by A. M. Akhmetzhanov and published by . This book was released on 2007 with total page 144 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Thalassas written by and published by . This book was released on 2003 with total page 638 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Annual Report written by Intergovernmental Oceanographic Commission and published by . This book was released on 2002 with total page 498 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Geological Processes in the Mediterranean and Black Seas and North East Atlantic written by N. H. Kenyon and published by . This book was released on 2002 with total page 124 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Morphostructure of the Atlantic Ocean Floor written by V.M. Litvin and published by Springer Science & Business Media. This book was released on 2013-06-29 with total page 183 pages. Available in PDF, EPUB and Kindle. Book excerpt: The study of the topography and structure of the ocean floor is one of the most important stages in ascertaining the geological structure and history of development of the Earth's oceanic crust. This, in its turn, provides a means for purposeful, scientifically-substantiated prospecting, exploration and development of the mineral resources of the ocean. The Atlantic Ocean has been geologically and geophysically studied to a great extent and many years of investigating its floor have revealed the laws governing the structure of the major forms of its submarine relief (e. g. , the continental shelf, the continental slope, the transition zones, the ocean bed, and the Mid-Oceanic Ridge). The basic features of the Earth's oceanic crust structure, anomalous geophysical fields, and the thickness and structure of its sedimentary cover have also been studied. Based on the investigations of the Atlantic Ocean floor and its surrounding continents, the presently prevalent concept of new global tectonics has appeared. A great number of works devoted to the results of geomorphological, geolog ical, and geophysical studies of the Atlantic Ocean floor have appeared. In the U. S. S. R. , such summarizing works as The Geomorphology of the Atlantic Ocean Floor [34], Types of Bottom Sediments of the Atlantic Ocean [24], The Geology of the Atlantic Ocean [38], and, somewhat earlier, Geophysical Studies of the Earth's Crust Structure in the Atlantic Ocean [13], have been published.
Download or read book Biodiversity and Distribution of the Megafauna The polymetallic nodule ecosystem of the eastern equatorial Pacific Ocean written by Virginie Tilot and published by . This book was released on 2006 with total page 230 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Improved Global Bathymetry written by and published by . This book was released on 2002 with total page 126 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Geology and Biology of North Atlantic Deep sea Cores Between Newfoundland and Ireland written by Geological Survey (U.S.) and published by . This book was released on 1940 with total page 96 pages. Available in PDF, EPUB and Kindle. Book excerpt:
