New perspectives in benthic deep-sea microbial ecology
... abundance can equal bacterial abundance or even dominate not only in deep-sea waters beneath 1000 m depth, but also in subsurface sediments (Karner et al., 2001; Biddle et al., 2006; Schippers and Neretin, 2006; Lipp et al., 2008). Recent studies reveal that in deep-sea surface sediments the abundan ...
... abundance can equal bacterial abundance or even dominate not only in deep-sea waters beneath 1000 m depth, but also in subsurface sediments (Karner et al., 2001; Biddle et al., 2006; Schippers and Neretin, 2006; Lipp et al., 2008). Recent studies reveal that in deep-sea surface sediments the abundan ...
Sample pages 2 PDF
... The theory of Ekman layers (and geostrophic flows) (Jenkins and Bye 2006) is fundamental in the understanding of wind-driven coastal upwelling. We believe that Bakun (1973) was the first who initially described the methods used to calculate upwelling indices, presenting monthly, quarterly, and annual ...
... The theory of Ekman layers (and geostrophic flows) (Jenkins and Bye 2006) is fundamental in the understanding of wind-driven coastal upwelling. We believe that Bakun (1973) was the first who initially described the methods used to calculate upwelling indices, presenting monthly, quarterly, and annual ...
Constraints on asthenospheric flow from the depths of oceanic
... [1] The fastest spreading center, the East Pacific Rise (EPR), is consistently deeper than most other spreading centers. Its average depth along the 5000 km length is 3100 m, while the mean depth along the adjacent, slower spreading Pacific-Antarctic Rise (PAR) is 2700 m. The deepest spreading ce ...
... [1] The fastest spreading center, the East Pacific Rise (EPR), is consistently deeper than most other spreading centers. Its average depth along the 5000 km length is 3100 m, while the mean depth along the adjacent, slower spreading Pacific-Antarctic Rise (PAR) is 2700 m. The deepest spreading ce ...
ohrlls unesco un-doalos - Sustainable Development Knowledge
... Dr. Morrell, speaking on the on regional SIDS oceans policy as it relates to marine science and technology, recalled the high importance that Pacific SIDS place on oceans and its resources. He underscored the value of marine resources to Pacific SIDS in terms of economic value and support for liveli ...
... Dr. Morrell, speaking on the on regional SIDS oceans policy as it relates to marine science and technology, recalled the high importance that Pacific SIDS place on oceans and its resources. He underscored the value of marine resources to Pacific SIDS in terms of economic value and support for liveli ...
Eng - IW:LEARN - Archived web sites
... patterns in Session 1; the influence of the Agulhas Current on the Agulhas Bank in Session 2; and metocean prediction in support of maritime operations in Session 3) in order to meet particularly objective 1 but also some of the other objectives listed above. The Specialist Sessions built on the pre ...
... patterns in Session 1; the influence of the Agulhas Current on the Agulhas Bank in Session 2; and metocean prediction in support of maritime operations in Session 3) in order to meet particularly objective 1 but also some of the other objectives listed above. The Specialist Sessions built on the pre ...
The Oceanic Lithosphere
... formed along a narrow band of seafloor at the summit of mid-ocean ridges. Owing to its mode of formation and relatively simple history after formation, it differs substantially from the continental lithosphere (see Continental Crust). The mid-ocean ridges correspond to divergent plate boundaries, wh ...
... formed along a narrow band of seafloor at the summit of mid-ocean ridges. Owing to its mode of formation and relatively simple history after formation, it differs substantially from the continental lithosphere (see Continental Crust). The mid-ocean ridges correspond to divergent plate boundaries, wh ...
Antipodal hotspots and bipolar catastrophes: Were oceanic large
... One aspect of the hotspot distribution that has received little attention is its antipodal character. Of 45 dprimaryT hotspots found in most hotspot compilations 22 (49%) form antipodal pairs within observed hotspot drift limits (V 20 mm/yr). In addition, the available ages, or possible age ranges, ...
... One aspect of the hotspot distribution that has received little attention is its antipodal character. Of 45 dprimaryT hotspots found in most hotspot compilations 22 (49%) form antipodal pairs within observed hotspot drift limits (V 20 mm/yr). In addition, the available ages, or possible age ranges, ...
GOOS Coastal Module Planning Workshop - unesdoc
... environment. Working through the IOC, WMO, UNEP, ICSU, and FA0 member states have begun to define their requirements for GOOS. This report examines the issues related to the coastal aspects of GOOS It builds upon previous considerations of the Health of the Oceans (HOTO) and the Living Marine Resour ...
... environment. Working through the IOC, WMO, UNEP, ICSU, and FA0 member states have begun to define their requirements for GOOS. This report examines the issues related to the coastal aspects of GOOS It builds upon previous considerations of the Health of the Oceans (HOTO) and the Living Marine Resour ...
Oxygen Sensitivity of Anammox and Coupled N
... surface productivity results in high export of organic matter and thus strong respiration in subsurface waters. Combined with the poor ventilation of these water masses [2,3], this leads to permanently O2-depleted to anoxic conditions at mid-depths ...
... surface productivity results in high export of organic matter and thus strong respiration in subsurface waters. Combined with the poor ventilation of these water masses [2,3], this leads to permanently O2-depleted to anoxic conditions at mid-depths ...
Ocean Basin Evolution and Global
... simple to reconstruct seafloor spreading isochrons and the past age-area distribution of ocean floor in the Atlantic and Indian Oceans, where conjugate mid-ocean ridge flanks are preserved. Reconstructing the now largely destroyed Tethys Ocean basin through its various stages of opening and closing ...
... simple to reconstruct seafloor spreading isochrons and the past age-area distribution of ocean floor in the Atlantic and Indian Oceans, where conjugate mid-ocean ridge flanks are preserved. Reconstructing the now largely destroyed Tethys Ocean basin through its various stages of opening and closing ...
IOC Sub-Commission for the Western Pacific - UNESDOC
... exchange and sharing of observed data and information, and ecosystem research. He noted that the oceans provide a considerable amount of resources on which humans depend and these resources are being threatened by pollution, climate change, and other changes to the ocean ecosystem. Mr Joo confirmed ...
... exchange and sharing of observed data and information, and ecosystem research. He noted that the oceans provide a considerable amount of resources on which humans depend and these resources are being threatened by pollution, climate change, and other changes to the ocean ecosystem. Mr Joo confirmed ...
32. mineralogical and oxygen isotopic features of serpentinites
... Peridotites from the boundary between the Atlantic Ocean crust and the West Iberia continental margin (west of Portugal) were drilled during Leg 149 in Holes 897C, 897D, and 899B. These peridotites have been serpentinized intensively with more than 90% of the primary phases being essentially lizardi ...
... Peridotites from the boundary between the Atlantic Ocean crust and the West Iberia continental margin (west of Portugal) were drilled during Leg 149 in Holes 897C, 897D, and 899B. These peridotites have been serpentinized intensively with more than 90% of the primary phases being essentially lizardi ...
Do manganese nodules grow or dissolve after burial
... of the “Brazil Nut Effect” where tectonic/sieving like processes operate. Due to their large size, nodules are always kept at the top and smaller at the bottom. A similar observation was made by Prasad et al. (2003) where they found that Australasian tektite in the upper layer of sediment and microt ...
... of the “Brazil Nut Effect” where tectonic/sieving like processes operate. Due to their large size, nodules are always kept at the top and smaller at the bottom. A similar observation was made by Prasad et al. (2003) where they found that Australasian tektite in the upper layer of sediment and microt ...
Full text PDF - Geochemical Perspectives
... of Bob Berner at Yale University in New Haven, Connecticut. At the time, Rob Raiswell was a visiting scientist, preparing to return to Yale the following Spring for a one-year sabbatical leave, and Don Canfield was beginning as a graduate student. During Rob’s sabbatical, and for many years to follo ...
... of Bob Berner at Yale University in New Haven, Connecticut. At the time, Rob Raiswell was a visiting scientist, preparing to return to Yale the following Spring for a one-year sabbatical leave, and Don Canfield was beginning as a graduate student. During Rob’s sabbatical, and for many years to follo ...
essentials-of-oceanography-10th-edition-trujillo-test
... 36) All of the following provide evidence for continental drift except: A) age of selected continental rocks. B) apparent polar wandering. C) location of coral reef fossils. D) seafloor magnetic pattern. E) shape of continental margins. Answer: D Diff: 2 Skill: comprehension 37) Continental drift wa ...
... 36) All of the following provide evidence for continental drift except: A) age of selected continental rocks. B) apparent polar wandering. C) location of coral reef fossils. D) seafloor magnetic pattern. E) shape of continental margins. Answer: D Diff: 2 Skill: comprehension 37) Continental drift wa ...
An Iceland hotspot saga
... Abstract — Is Iceland a hotspot, with ridge-centered plume? In Iceland vigorous volcanism has built up a plateau 3.0 km higher than at a normal mid-ocean ridge with 3 to 4 times thicker crust than average oceanic crust. This volcanism can be associated with anomalous volcanism for 56–61 Ma in the fo ...
... Abstract — Is Iceland a hotspot, with ridge-centered plume? In Iceland vigorous volcanism has built up a plateau 3.0 km higher than at a normal mid-ocean ridge with 3 to 4 times thicker crust than average oceanic crust. This volcanism can be associated with anomalous volcanism for 56–61 Ma in the fo ...
National ocean policy: the basic texts from
... the sector when many of the factors affecting the sectors lie outside it. Perhaps the shortest description of the problem was formulated by Ministers Miliband and Brad2 ...
... the sector when many of the factors affecting the sectors lie outside it. Perhaps the shortest description of the problem was formulated by Ministers Miliband and Brad2 ...
Consulta: creatorFacets:"Le Pichon, Xavier" Registros recuperados
... fig. 1b). The role of these currents in the formation of large sediment ripples has been demonstrated in some recent studies [(2), (3)]. As in the southern Atlantic Ocean, the observations suggested that their influence had been of importance since the Eocene era (6). From a sedimentological point o ...
... fig. 1b). The role of these currents in the formation of large sediment ripples has been demonstrated in some recent studies [(2), (3)]. As in the southern Atlantic Ocean, the observations suggested that their influence had been of importance since the Eocene era (6). From a sedimentological point o ...
Impact origin for the greater Ontong Java Plateau?
... mantle plume [7,9]. Mesozoic magnetic anomalies in the basins indicate that Late Jurassic and Early Cretaceous oceanic crust underlies the Lower Cretaceous East Mariana, Nauru, and Pigafetta £ood basalts [32,44,45]. Castillo et al. [10] suggested that if one or more OJP plume head(s) had extended un ...
... mantle plume [7,9]. Mesozoic magnetic anomalies in the basins indicate that Late Jurassic and Early Cretaceous oceanic crust underlies the Lower Cretaceous East Mariana, Nauru, and Pigafetta £ood basalts [32,44,45]. Castillo et al. [10] suggested that if one or more OJP plume head(s) had extended un ...
Earthquakes and Earth`s Interior
... AN EARTHQUAKE OCCURS WHEN ENERGY stored in rocks is suddenly released. Most earthquakes are produced when stress builds up along a fault over a long time, eventually causing the fault to slip. Similar kinds of energy are released by volcanic eruptions, explosions, and even meteorite impacts. ...
... AN EARTHQUAKE OCCURS WHEN ENERGY stored in rocks is suddenly released. Most earthquakes are produced when stress builds up along a fault over a long time, eventually causing the fault to slip. Similar kinds of energy are released by volcanic eruptions, explosions, and even meteorite impacts. ...
Plate Tectonics - The Web site cannot be found
... core. Since the temperature outside the Earth is far below the melting temperature of the m a n t l e material (about 1250oC for peridotitic rock), the outermost layer of the mantle is frozen. We call this solid rock layer having a thickness of ca. 100 km the lithosphere. The lithosphere surrounds t ...
... core. Since the temperature outside the Earth is far below the melting temperature of the m a n t l e material (about 1250oC for peridotitic rock), the outermost layer of the mantle is frozen. We call this solid rock layer having a thickness of ca. 100 km the lithosphere. The lithosphere surrounds t ...
Accumulation and fragmentation of plastic debris in global
... much epibiota to float. Plastic items are commonly found at the sea surface or washed up on the shoreline. Mass production of plastics began in the 1950s, so less than a century ago we estimate that the amount of anthropogenic debris at sea would have been three to four orders of magnitude lower and ...
... much epibiota to float. Plastic items are commonly found at the sea surface or washed up on the shoreline. Mass production of plastics began in the 1950s, so less than a century ago we estimate that the amount of anthropogenic debris at sea would have been three to four orders of magnitude lower and ...
Deep-Sea Life
... to their colleagues. In addition, it is hoped that benthic monitoring becomes incorporated into standard practices in Namibian waters alongside fisheries assessments. Others are now considering a change of career path in order to incorporate or even focus on benthic research. The enthusiasm of the p ...
... to their colleagues. In addition, it is hoped that benthic monitoring becomes incorporated into standard practices in Namibian waters alongside fisheries assessments. Others are now considering a change of career path in order to incorporate or even focus on benthic research. The enthusiasm of the p ...
Lithospheric Layering in the North American Craton
... and higher resolution than previously obtained, the crustal thickness and the depth to the Moho and lithosphere-asthenosphere boundary (LAB) throughout the Western U.S. Individual receiver functions have been converted to depth and laterally “migrated” to their conversion point using 3D P- and S-wav ...
... and higher resolution than previously obtained, the crustal thickness and the depth to the Moho and lithosphere-asthenosphere boundary (LAB) throughout the Western U.S. Individual receiver functions have been converted to depth and laterally “migrated” to their conversion point using 3D P- and S-wav ...
The sub-thermocline duct. - Naval Postgraduate School
... grouped together in Table V since the descriptive portion of the table applies equally to ducts in each of these categories, regardless of magnitude. It is of interest in duct analysis to break down each ...
... grouped together in Table V since the descriptive portion of the table applies equally to ducts in each of these categories, regardless of magnitude. It is of interest in duct analysis to break down each ...
Physical oceanography
Physical oceanography is the study of physical conditions and physical processes within the ocean, especially the motions and physical properties of ocean waters.Physical oceanography is one of several sub-domains into which oceanography is divided. Others include biological, chemical and geological oceanographies.