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The Bruce C. Heezen Graduate research Fellowship will be awarded to an outstanding graduate student whose research focus is marine geology and geophysics, and who is a U.S. citizen or permanent resident. The student is identified ...
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The Bruce C. Heezen Graduate research Fellowship will be awarded to an outstanding graduate student whose research focus is marine geology and geophysics, and who is a U.S. citizen or permanent resident. The student is identified each year from among the Lamont student body, the criteria for selection of the successful candidate combining consideration of scientific excellence and the field of research, with emphasis upon fields of current interest to the Office of Naval Research.
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Bacteria induce the precipitation of calcium carbonate in the laboratory and in nature by altering their chemical environment. Geologists are recognizing the possibility that bacterially induced precipitates may form significant m...
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Bacteria induce the precipitation of calcium carbonate in the laboratory and in nature by altering their chemical environment. Geologists are recognizing the possibility that bacterially induced precipitates may form significant mineral deposits, unfortunately, there are currently no sound criteria by which they can be recognized in recent sediments, or in the rock record. Cultures of aerobic and facultative bacteria from cyanobacterial mats on Andros Island, Bahamas, and Baffin Bay, Texas, induced the precipitation of calcium carbonate under controlled conditions. Crusts, the largest features formed, are composed of 5--200(mu)m diameter bundles which are, in turn, composed of numerous individual crystals. The smallest observed features are 0.1--0.4(mu)m spheres and rods which comprise some individual crystals and crystal bundles. Crystal bundles resembling rhombohedra, tetragonal disphenoids, tetragonal dipyramids, and calcite dumbbells appear to be uniquely bacterial in origin, and they have all been observed in recent sediments. Swollen rods, discs, curved dumbbells, and 50--200(mu)m optically continuous crystals resembling brushes may be uniquely bacterial in origin, however, they have not been reported by other laboratories nor observed in natural settings. Presence of any of these forms in recent sediments should be taken as strong evidence for bacterial influence. Spheres and aragonite dumbbells have also been observed in natural environments, however, they are not always bacterial in origin. Precipitation of calcium carbonate occurs preferentially on dead cyanobacteria in the presence of bacteria. Lithification of algal mats to form stromatolites may take place in the zone of decaying organic matter due to bacterial activity.
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On May 14-16, 2001 a workshop on Data Management for Marine Geology and Geophysics: Tools for Archiving, Analysis, and Visualization was held in La Jolla, CA. The workshop 5 objective was to bring together researchers, data collec...
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On May 14-16, 2001 a workshop on Data Management for Marine Geology and Geophysics: Tools for Archiving, Analysis, and Visualization was held in La Jolla, CA. The workshop 5 objective was to bring together researchers, data collectors, data users, engineers, and computer scientists to assess the state of existing data management efforts in the marine geology and geophysics (MG&G) community, share experiences in developing data management projects, and help determine the direction of future efforts in data management.
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ONR funding was used to accomplish the long-term goals of the Scripps Institution of Oceanography Geological Collections, which have been and continue to be, to serve the scientific community by acquisition, maintenance, conservat...
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ONR funding was used to accomplish the long-term goals of the Scripps Institution of Oceanography Geological Collections, which have been and continue to be, to serve the scientific community by acquisition, maintenance, conservation and curation of marine geological samples; to make the scientific community aware of our holdings; to encourage utilization of the collection for the scientific study and science educational purposes; to develop consistent policies and procedures through active cooperation with other marine geological repositories; and to support related activities at SIO and the scientific community at large.
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The Seafloor Geosciences Division now provides the Navy with expanded and advanced capabilities to conduct comprehensive geological, geophysical, and geotechnical investigations of the sea floor and sub-sea floor. Basic and applie...
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The Seafloor Geosciences Division now provides the Navy with expanded and advanced capabilities to conduct comprehensive geological, geophysical, and geotechnical investigations of the sea floor and sub-sea floor. Basic and applied research studies contribute to the fundamental knowledge of the oceanic crust and overlying sediments and the effective utilization of the sea floor. Interdiscipolinary seafloor science and engineering investigations are ongoing in support of navy problems, systems design, construction, and operations. Studies provide quantitative and qualitative description and understanding of the seafloor geological materials and environmental parameters directed toward advancing the state-of-the-art. This informal report is a summary of the Seafloor Geosciences Divisions research accomplishments and professional activities for 1982 and early 1983. The purpose is to provide NORDA Management and NORDA Offices (Codes) with a timely document on the Division's productivity and accomplishments.
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The Seafloor Geosciences Division now provides the Navy with expanded and advanced capabilities to conduct comprehensive geological, geophysical, and geotechnical investigations of the sea floor and sub-sea floor. Basic and applie...
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The Seafloor Geosciences Division now provides the Navy with expanded and advanced capabilities to conduct comprehensive geological, geophysical, and geotechnical investigations of the sea floor and sub-sea floor. Basic and applied research studies contribute to the fundamental knowledge of the oceanic crust and overlying sediments and the effective utilization of the sea floor. Interdiscipolinary seafloor science and engineering investigations are ongoing in support of navy problems, systems design, construction, and operations. Studies provide quantitative and qualitative description and understanding of the seafloor geological materials and environmental parameters directed toward advancing the state-of-the-art. This informal report is a summary of the Seafloor Geosciences Divisions research accomplishments and professional activities for 1982 and early 1983. The purpose is to provide NORDA Management and NORDA Offices (Codes) with a timely document on the Division's productivity and accomplishments.
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The University of Washington's Department of Oceanography has established comprehensive teaching and research programs, which are conducted by a diverse group of faculty, staff, students, and support personnel. More than 120 proje...
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The University of Washington's Department of Oceanography has established comprehensive teaching and research programs, which are conducted by a diverse group of faculty, staff, students, and support personnel. More than 120 projects comprise our research program, which covers a broad range of oceanographic investigations and has annual expenditures in excess of eight million dollars. These investigations range from individual research projects to multidisciplinary and/or multiuniversity projects, such as the Deep Ocean Mining Environmental Study (DOMES), the first GARP Global Experiment (FGGE), the First International Biomass Experiment (FIBEX), the Global Atlantic Tropical Experiment (GATE), the International Program of Ocean Drilling (IPOD) supported by the Deep Sea Drilling Project (DSDP), the International Southern Ocean Studies (ISOS), the Manganese Nodule Program (MANOP), the Outer Continental Shelf Environmental Assessment Program (OCSEAP), the Joint U.S.-U.S.S.R. Mid Ocean Dynamics Experiment (POLYMODE), the Processes and Resources of the Bering Sea Shelf Program (PROBES), the Rivera Ocean Seismic Experiment (ROSE), and the proposed Subarctic Pacific Ecosystem Research Program (SUPER).
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Included in this program are studies in marine geologysedimentation, structure and tectonics, topography and physiography; marine geophysics - seismology, both reflection and refraction, gravity, magnetics and heat flow; marine bi...
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Included in this program are studies in marine geologysedimentation, structure and tectonics, topography and physiography; marine geophysics - seismology, both reflection and refraction, gravity, magnetics and heat flow; marine biology - abyssal fauna, microbiology and ecology of living plankton; and oceanography - physical and dynamical. (Author)
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The following Japanese-English dictionary includes hydrographical, geological, chemical, botanical and biological terms used in oceanography. Included also are some of the more commonly used meteorological and fisheries terms. Rom...
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The following Japanese-English dictionary includes hydrographical, geological, chemical, botanical and biological terms used in oceanography. Included also are some of the more commonly used meteorological and fisheries terms. Romanized Japanese words have been separated, in some cases, into phonetic units to facilitate reading. (Author)
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