Deep Drilling Results in the Atlantic Ocean: Continental Margins and Paleoenvironment


Book Description

The second Maurice Ewing Symposium was devoted to the implications of deep drilling results in the Atlantic Ocean. This subject was chosen for two reasons. First, Maurice Ewing was one of the leaders of JOIDES (Joint Oceanographic Institutions for Deep Earth Sampling), the association of oceanographic institutions that was formed to organize and sponsor drilling in the deep ocean, and which has continued to provide scientific advice to the Deep Sea Drilling Project. Second, the first phase of International Program of Ocean Drilling in the Atlantic was finished and it seemed a good time to assess the implications of drilling results in the Atlantic that had been obtained over almost a decade. During the time this volume was being prepared, discussions were taking place about a new initiative in oceanic drilling, in which a drilling vessel with much enhanced capability might be used. The results presented in this volume thus represent the base on which new drilling plans can be built.







The Geology of the Atlantic Ocean


Book Description

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.




The Oceanic Lithosphere


Book Description




Paleoecology, Biostratigraphy, Paleoceanography and Taxonomy of Agglutinated Foraminifera


Book Description

Agglutinated foraminifera are among the most widely distributed and abundant groups of marine meiofauna in some environments (e. g. marshes, deep-sea). They are tolerant of environmental extremes, tending to live where the evolutionarily more advanced calcareous foraminifera cannot survive. However, largely because of historical reasons, the amount of scientific effort invested in this group has been small in comparison to studies of other marine organisms. The NATO Advanced Studies Institute conference on the paleoecology, biostratigraphy, paleoceanography and taxonomy of agglutinated foraminifera in TUbingen September 17-29, 1989, was a direct outgrowth of two previous workshops on agglutinated foraminifers held in Amsterdam in September 1981 (IW AF I) and in Vienna in June 1986 (IW AF 11). As such, the TUbingen conference constitutes the Third International Workshop on Agglutinated Foraminifera (IW AF III) and was organised to provide a platform for synthesizing the current state of knowledge on this group of organisms, and to strengthen interactions between basic research and applied micropaleontology. One of the main underlying themes of the conferen:e was to identify topics in the paleoecology, biostratigraphy, paleoceanography and taxonomy of agglutinated foraminifera which are in urgent need of further research. About 80 scientists and students from 5 continents participated in the TUbingen conference, which is one measure of the growth in interest in agglutinated foraminifers over the past decade. During four days of technical sessions, scientific results were communicated in the form of 34 oral presentations and 15 poster displays.




Imaging, Mapping and Modelling Continental Lithosphere Extension and Breakup


Book Description

This volume summarises our present understanding of the formation of passive continental margins and their ocean-continent transitions. It outlines the geological, geophysical and petrological observations that characterize extensional systems, and how such observations can guide and constrain dynamic and kinematic models of continental lithosphere extension, breakup and the inception of organized sea-floor spreading.




Centennial Articles


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Cretaceous Oceanic Red Beds


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Evolution of Mid Ocean Ridges


Book Description

Outgrowth of IUGG Union Symposium 9 held during the 1987 IUGG General Assembly at Vancouver, Canada, and jointly sponsored by IAVCEI and others.