The distribution of macrofauna on the inner continental
... The environmental heterogeneity of the Campos Basin on the northern coast of Rio de Janeiro State was assessed by the benthic macrofauna on the platform adjacent to the Paraíba do Sul River (PSR) on the dry and rainy seasons. The samples were collected in triplicate from 33 sites using a van Veen gr ...
... The environmental heterogeneity of the Campos Basin on the northern coast of Rio de Janeiro State was assessed by the benthic macrofauna on the platform adjacent to the Paraíba do Sul River (PSR) on the dry and rainy seasons. The samples were collected in triplicate from 33 sites using a van Veen gr ...
Using sound waves to sort out seafloor sediment types
... in this issue). The method works by sending sound waves to the seafloor from equipment mounted on a ship’s hull and measuring the time it takes for the signals to return. This time is directly related to water depth. Therefore it is possible to build up a detailed map of the seafloor from many measu ...
... in this issue). The method works by sending sound waves to the seafloor from equipment mounted on a ship’s hull and measuring the time it takes for the signals to return. This time is directly related to water depth. Therefore it is possible to build up a detailed map of the seafloor from many measu ...
2008, final Lecture 12 deep sea and hydro vents
... vent sites teem with a fascinating array of life. • Tubeworms and huge clams are the most distinctive inhabitants of Pacific Ocean vent sites, while eyeless shrimp are found only at vents in the Atlantic Ocean ...
... vent sites teem with a fascinating array of life. • Tubeworms and huge clams are the most distinctive inhabitants of Pacific Ocean vent sites, while eyeless shrimp are found only at vents in the Atlantic Ocean ...
Bulletin 70 Geology of the Knight Peak Area, Grant County, New
... on the northeast and southwest sides of the Knight Peak area. Outliers of Cambrian-Ordovician Bliss sandstone and Ordovician El Paso limestone, of approximately the same thickness as these same units elsewhere in the Silver City region, suggest that the uplift of the Big Burro Mountains did not begi ...
... on the northeast and southwest sides of the Knight Peak area. Outliers of Cambrian-Ordovician Bliss sandstone and Ordovician El Paso limestone, of approximately the same thickness as these same units elsewhere in the Silver City region, suggest that the uplift of the Big Burro Mountains did not begi ...
Summer, 2002 (Vol. 4, No. 2)
... the water until finding oysters to infect. Perkinsus can survive outside the host for some time, but it does not multiply during this phase of its life cycle. Perkinsus marinus, which causes Dermo disease in oysters, is one of the diseases that had devastated the native oyster populations in the Che ...
... the water until finding oysters to infect. Perkinsus can survive outside the host for some time, but it does not multiply during this phase of its life cycle. Perkinsus marinus, which causes Dermo disease in oysters, is one of the diseases that had devastated the native oyster populations in the Che ...
Dynamics and Evolution of European Margins
... of buried shorelines. A second drill site was situated at the seaward termination of the Last Glacial Maximum shoreline, at a water depth of 103 m. The targeted depth was 100 mbsf in order to sample shelf sequences that were deposited during the same time interval as the first site. The major differ ...
... of buried shorelines. A second drill site was situated at the seaward termination of the Last Glacial Maximum shoreline, at a water depth of 103 m. The targeted depth was 100 mbsf in order to sample shelf sequences that were deposited during the same time interval as the first site. The major differ ...
Segmented Fore Arc Deformation Along the
... include an abrupt morphologic break between smooth and rough sea floor domains, and a fracture zone trace that divides crust derived at the East Pacific Rise (EPR) from that formed along the Cocos-Nazca spreading center (CNS-1 and 2). Contrasts in subducting plate thickness, roughness, and dip acros ...
... include an abrupt morphologic break between smooth and rough sea floor domains, and a fracture zone trace that divides crust derived at the East Pacific Rise (EPR) from that formed along the Cocos-Nazca spreading center (CNS-1 and 2). Contrasts in subducting plate thickness, roughness, and dip acros ...
Distribution of dinoflagellate cysts in the Canadian Arctic
... dinocyst data base (see de Vernal et al., this issue). They are interpolated from hydrographical data compiled by NODC (1994). Most of these values seem reasonable for SST and SS at 0 m. However, some values <30 from the channels west of Ellesmere Island appear to be much lower than the average repo ...
... dinocyst data base (see de Vernal et al., this issue). They are interpolated from hydrographical data compiled by NODC (1994). Most of these values seem reasonable for SST and SS at 0 m. However, some values <30 from the channels west of Ellesmere Island appear to be much lower than the average repo ...
palaeontological impact assessment report for the lushington park
... Province. is underlain by Swazian to Randian aged, intrusive rocks and Granites, Permian aged sandstone of the Vryheid Formation and Jurassic aged dolerite. The two proposed alternative routes close to the Swaziland border are underlain by Swazian and Randian aged intrusive rocks. Dr Gideon Groenewa ...
... Province. is underlain by Swazian to Randian aged, intrusive rocks and Granites, Permian aged sandstone of the Vryheid Formation and Jurassic aged dolerite. The two proposed alternative routes close to the Swaziland border are underlain by Swazian and Randian aged intrusive rocks. Dr Gideon Groenewa ...
UNESCO World Heritage Site: Swiss Tectonic Arena Sardona
... Clearly, other rocks above this magic line are present, as below. One can see dark, massive rocks forming rough rock walls in the Pizol area, on the Tschingelhörner, on Kärpf, on Foostock or on Ringelspitz. Under the surface are softer, often foliated rocks. Today we know that the "magic line" is ac ...
... Clearly, other rocks above this magic line are present, as below. One can see dark, massive rocks forming rough rock walls in the Pizol area, on the Tschingelhörner, on Kärpf, on Foostock or on Ringelspitz. Under the surface are softer, often foliated rocks. Today we know that the "magic line" is ac ...
Irish Sea Pilot - Marine Landscape
... using a process called 'union'. This process combines the attributes of each dataset into one, allowing easier querying with the GIS. Other datasets, including generalised bedforms, maximum bed stress (bottom current) and gas seeps, were overlaid on this 'union' layer. 149. Practical criteria were d ...
... using a process called 'union'. This process combines the attributes of each dataset into one, allowing easier querying with the GIS. Other datasets, including generalised bedforms, maximum bed stress (bottom current) and gas seeps, were overlaid on this 'union' layer. 149. Practical criteria were d ...
Bowser and Sustut Basins - state of knowledge and new
... More than 2000 m of nonmarine clastic strata, divided into two formations: Brothers Peak Formation ...
... More than 2000 m of nonmarine clastic strata, divided into two formations: Brothers Peak Formation ...
Saurashtra Basin - Directorate General of Hydrocarbons
... indicum and Ptylophyleum sp. have been reported from this formation. ...
... indicum and Ptylophyleum sp. have been reported from this formation. ...
Evolution of the Neogene-Pleistocene Basins of Macedonia
... in the Vardar zone and the Serbo-Macedonian massif. The oldest volcanic rocks occur in the areas of Bucim, Damjan, and Borov Dol (26.4–24.9 Ma), Kratovo and Zletovo (32–29 ± 2 Ma to 16 ± 2.0 Ma) and in the zone Toranica, Sasa, and Delcevo–Pechevo (25–17 Ma; Fig. 3). These older volcanic rocks are ov ...
... in the Vardar zone and the Serbo-Macedonian massif. The oldest volcanic rocks occur in the areas of Bucim, Damjan, and Borov Dol (26.4–24.9 Ma), Kratovo and Zletovo (32–29 ± 2 Ma to 16 ± 2.0 Ma) and in the zone Toranica, Sasa, and Delcevo–Pechevo (25–17 Ma; Fig. 3). These older volcanic rocks are ov ...
`granitic` laver of the crust in the southern norwegian precambrian
... The Seismic Crustal Model The crustal model is determined by the analysis of refracted seismic ...
... The Seismic Crustal Model The crustal model is determined by the analysis of refracted seismic ...
Strong Tidal Currents Observed near the Bottom in the
... Figure 3 shows the vertical distribution of the buoyancy frequency near the observation sites on 30 October 1988. We can see the presence of a surface mixed layer with a thickness of about 30 m and a sharp seasonal pycnocline beneath it. Reflecting this vertical stratification, the buoyancy frequenc ...
... Figure 3 shows the vertical distribution of the buoyancy frequency near the observation sites on 30 October 1988. We can see the presence of a surface mixed layer with a thickness of about 30 m and a sharp seasonal pycnocline beneath it. Reflecting this vertical stratification, the buoyancy frequenc ...
Hot, buoyant fluids laden with dissolved minerals billow out of... vents. The minerals precipitate when they hit cold seawater, creating
... But then copper prices plummeted with the global economic slowdown, and Nautilus put many of its plans on hold. “I think a lot of us on the science side were actually relieved,” Tivey said. But will the pause in the action make a difference? In April 2009, a wide range of stakeholders from 20 countr ...
... But then copper prices plummeted with the global economic slowdown, and Nautilus put many of its plans on hold. “I think a lot of us on the science side were actually relieved,” Tivey said. But will the pause in the action make a difference? In April 2009, a wide range of stakeholders from 20 countr ...
The landslide
... ridges consist of clast-supported, apparently matrixfree conglomerates and are interpreted as grain flow deposits. The flats consist of clast-supported, matrixbearing conglomerates and matrix-supported conglomerates, indicating deposition from modified grain flows and debris flows. In the flat areas ...
... ridges consist of clast-supported, apparently matrixfree conglomerates and are interpreted as grain flow deposits. The flats consist of clast-supported, matrixbearing conglomerates and matrix-supported conglomerates, indicating deposition from modified grain flows and debris flows. In the flat areas ...
The Origin of the Land Under the Sea
... of overlying rock means the pressure also increases with depth— about 1,000 atmospheres for every three kilometers. Knowledge of the intense heat and pressure in the mantle led researchers to hypothesize in the late 1960s that ocean crust originates as tiny amounts of liquid rock known as melt— almo ...
... of overlying rock means the pressure also increases with depth— about 1,000 atmospheres for every three kilometers. Knowledge of the intense heat and pressure in the mantle led researchers to hypothesize in the late 1960s that ocean crust originates as tiny amounts of liquid rock known as melt— almo ...
masters of science degrees - the College of Marine Science
... Photosynthesis and Respiration in Five Species of Benthic Foraminifera that Host Algal Symbionts. OBROCHTA, STEPHEN Australian Great Barrier Reef Initiation Timing Constrained by Seaward Shallow-Water Sediment Drift Architecture. BRODERSEN, JUSTIN Inner-Shelf Bottom Boundary Layer Development and Se ...
... Photosynthesis and Respiration in Five Species of Benthic Foraminifera that Host Algal Symbionts. OBROCHTA, STEPHEN Australian Great Barrier Reef Initiation Timing Constrained by Seaward Shallow-Water Sediment Drift Architecture. BRODERSEN, JUSTIN Inner-Shelf Bottom Boundary Layer Development and Se ...
Sedimentology and Stratigraphy
... 1 . 2 SE D I M E NT A R Y E N V I R O NM E N T S AND FACIES The environment at any point on the land or under the sea can be characterised by the physical and chemical processes that are active there and the organisms that live under those conditions at that time. As an example, a fluvial (river) en ...
... 1 . 2 SE D I M E NT A R Y E N V I R O NM E N T S AND FACIES The environment at any point on the land or under the sea can be characterised by the physical and chemical processes that are active there and the organisms that live under those conditions at that time. As an example, a fluvial (river) en ...
South coast of Arran
... The site comprises a 10-km-long coastal section from Cleitheadh Buidh (NR 956 208) to Kildonan (NS 037 208), including the sea cliffs near Bennan Head. The exposures of the dyke swarm are principally on the shore (Figs 6.8 and 6.9); the composite sill is seen in the cliffs at Bennan Head and in smal ...
... The site comprises a 10-km-long coastal section from Cleitheadh Buidh (NR 956 208) to Kildonan (NS 037 208), including the sea cliffs near Bennan Head. The exposures of the dyke swarm are principally on the shore (Figs 6.8 and 6.9); the composite sill is seen in the cliffs at Bennan Head and in smal ...
Solutional Caves
... dykes or bedding-plane contacts. Some wave-cut caves are now above sea level because of later uplift. Elsewhere, in places such as Thailand's Phang Nga Bay, solutional caves have been flooded by the sea and are now subject to littoral erosion. Sea caves are generally around 5 to 50 metres (16 to 160 ...
... dykes or bedding-plane contacts. Some wave-cut caves are now above sea level because of later uplift. Elsewhere, in places such as Thailand's Phang Nga Bay, solutional caves have been flooded by the sea and are now subject to littoral erosion. Sea caves are generally around 5 to 50 metres (16 to 160 ...
Seamounts, ridges, and reef habitats of American Samoa
... and protection, and for safety. Indeed, at both sites the water is suitably deep for the safe navigation of a 68 m long research vessel needing to track a submersible almost directly below it for shallow dives of 500 m or less. Taema Bank: Taema Bank (Figures 58.6 and 58.7) is a long, narrow, submar ...
... and protection, and for safety. Indeed, at both sites the water is suitably deep for the safe navigation of a 68 m long research vessel needing to track a submersible almost directly below it for shallow dives of 500 m or less. Taema Bank: Taema Bank (Figures 58.6 and 58.7) is a long, narrow, submar ...
Salt-water intrusion in Prince Edward Island
... Geology All of Prince Edward Island is underlain by nearly flat-lying terrestrial sediments of Pennsylvanian and Permian age. They are covered with a veneer of glacial drift generally less than 25 ft thick. The rocks are reddish brown, dominantly fine grained, and composed of massive and crossbedded ...
... Geology All of Prince Edward Island is underlain by nearly flat-lying terrestrial sediments of Pennsylvanian and Permian age. They are covered with a veneer of glacial drift generally less than 25 ft thick. The rocks are reddish brown, dominantly fine grained, and composed of massive and crossbedded ...
Marine geology of the Cape Peninsula and False Bay
The Cape Peninsula is a peninsula that juts out into the Atlantic Ocean at the south-western extremity of the African continent. At its tip is the Cape of Good Hope. The peninsula forms the west side of False Bay. The two main rock formations are the late-Precambrian Malmesbury group (metamorphic rock) and the Peninsula granite, a huge batholith that was intruded into the Malmesbury Group about 630 million years ago.