Showing papers in "Marine Geology in 2008"

TL;DR: In this paper, an isotope analysis of seep carbonates derived from anaerobic oxidation of methane mediated by microbes has been performed along the passive margin of the northern South China Sea.

TL;DR: In this article, the results of clay mineralogy in 140 samples collected in major rivers and lakes in southwestern Taiwan and on the seafloor off Taiwan in the northeastern South China Sea (SCS), combined with clay mineral records of the Pearl River drainage basin, rivers in Luzon, and the South China shelf and slope, are used to semi-quantitatively evaluate the detrital fine-grained sediment contribution of Taiwan to the northern SCS.

TL;DR: In this article, high-resolution CHIRP sonar profiles across the Taiwan Strait reveal a large silt-sand-dominated deltaic clinoform, up to 50m thick, overlying the postglacial transgressive sea floor across the southeastern, central, and northern strait.

TL;DR: In this paper, a process-based model based on shallow water equations is used to simulate the morphological changes of the Western Wadden Sea for a duration of more than 2000 yr. The main forcing included in the simulations is tidal forcing and simulations with different initial conditions of the model are carried out.

TL;DR: In this article, the authors present the first complete sidescan sonar dataset of the Nazare and Setubal Canyons, west Iberian margin, which, in combination with multibeam bathymetry, shallow seismic profiles and precise piston coring of intra-canyon targets, are used to characterise the sedimentary dynamics of these deep-sea settings.

TL;DR: For example, during Leg 195 of the Ocean Drilling Program, Site 1202 was drilled in the subtropical northwestern Pacific Ocean beneath the Kuroshio (Black Current) between northern Taiwan and the Ryukyu Island Arc on the northern flank of the I-Lan Ridge at 1274m water depth as mentioned in this paper.

TL;DR: In this paper, the wave conditions and forces encountered at cliff-face and cliff-top platform and propose mechanisms to link wave processes to cliffface quarrying and land-ward cliff top transport of quarried blocks to deposition zones at the rear of the cliff top platform.

TL;DR: In this article, the authors monitored the shoreline dynamics of three artificial embayed beaches in Barcelona City during a three-year period using an Argus video system to examine the behaviour of the emerged beach in order to assess the main factors affecting the emergent shoreline, and to analyze the processes causing beach rotation at different time-scales.

TL;DR: In this paper, gravity core GeoB 9309-1, retrieved from 1219m water depth, was investigated for various geophysical (magnetic susceptibility, porosity, colour reflectance) and geochemical (pore water and sediment geochemistry, Fe and P speciation) properties.

TL;DR: This article investigated the evolution of the stratigraphic architecture of two siliciclastic northern South China Sea continental slope systems with distinct structural styles, including rift transform and rift segments.

TL;DR: In this paper, the authors quantify seasonal variability in the cross-shore position of high-, mean-and low-tide contours, beach width and beach volume, and examine the dependence of the variability on the offshore wave characteristics.

TL;DR: In this article, the same authors report on organic matter (OM) and trace metal contents in the upper 750 cm below sea floor (cmbsf) of Core MD02-2552 (mostly Holocene) and deposited under permanently stratified bottom conditions.

TL;DR: In this article, a process-based numerical model was used to explore the response of soft rock shores with low volume beaches to variable rates of sea level rise, and equilibrium recession rates were simulated for ranges of wave height and period.

TL;DR: In this paper, a quantitative measure was devised to determine the direction of sandwave migration based on the asymmetry of their profiles, which was found to migrate in a predominantly down-canyon direction, regardless of season and tidal phases.

TL;DR: In this paper, the grain-size distributions of the terrigenous fraction of two sediment cores from the southeast Levantine Sea (SL112) and the northern Aegean sea (SL148) spanning the time interval from the late glacial to the present are analyzed.

TL;DR: In this paper, mass-transport deposits (MTDs) were recognized from the upper to the mid slope, downstream from imbricated scars running along the shelf edge nearby the Rosetta canyon.

TL;DR: Three pockmarks named "Hydrate Hole", "Black Hole" and "Worm Hole" were studied in the northern Congo Fan area at water depths around 3100m as discussed by the authors.

TL;DR: In this paper, the authors used very high-resolution (VHR) seismic profiles to recognize the detailed architecture of the late Pleistocene and Holocene succession of the Venice area.

TL;DR: In this paper, a detailed exploration of the youngest channel-mouth lobe complex of the Amazon Fan has been conducted using bathymetric, acoustic imagery and 3.5 kHz sub-bottom profiler data.

TL;DR: In this article, the authors developed a foraminifera-based transfer function using three models based on a modern dataset of 59 samples and 23 species obtained from four Basque marshes in Northern Spain.

TL;DR: In this article, the authors used simple quantitative analyses to evaluate controversial water level scenarios for the Mediterranean “Lower Evaporites” of the Messinian salinity crisis, showing that a shallow-water scenario for the Lower Gypsum units, with Mediterranean water level lower than the sill at Gibraltar, would imply unrealistic salt thicknesses on the order of 3 km.

TL;DR: In this article, a 330 km length of the continental shelf edge and slope of the Bellingshausen Sea, West Antarctica, is investigated using multibeam swath-bathymetric and sub-bottom profiler evidence.

TL;DR: In this article, the authors presented a new cluster of carbonate mounds discovered in 2002 in the Gulf of Cadiz off Morocco (R/V Belgica 2002) in water depths of 500 to 600m amidst a field of giant mud volcanoes.

TL;DR: In this paper, ground-penetrating radar profiles of Holocene beach deposits were documented from the Kujukuri strand plain, Pacific coast of Japan, to examine a marker of past sea level recognized in these profiles.

TL;DR: In this article, the authors analyzed a dense grid of multi-channel seismic profiles to reveal the tectonic features in this oblique collision setting and found that the pre-orogenic mechanical/crustal heterogeneities and seafloor morphology exert strong controls on the thrust-belt development in the incipient Taiwan arc-continent collision zone.

TL;DR: The Grind of the Navir is an ignimbrite headland on the exposed Atlantic coast of the Shetland Islands, Scotland as mentioned in this paper, where the cliff top at ∼15m above sea level is awash with wave water when wave heights exceed 8m, a condition met in most years.

TL;DR: In this paper, two distinct deep-water seafloor blister-like mounds were surveyed using an autonomous underwater vehicle (carrying a multibeam sonar and a chirp sub-bottom profiler) and explored with the remotely operated vehicle Tiburon.

TL;DR: In this paper, the authors developed a high-resolution record of the lacustrine to marine transition of Marmara Sea in order to reconstruct regional and global climatic events at a millennial scale.

TL;DR: A 3-D Moho depth geometry, derived from inversion of Bouguer gravity data, shows a significant uplift of the discontinuity up to 16-17 km beneath the westernmost part of the Pantelleria Graben and beneath the island as mentioned in this paper.

TL;DR: In this article, the authors presented four new high-resolution multibeam bathymetry datasets from the shelf edge of the northern Great Barrier Reef (GBR), combined with Chirp sub-bottom profiles and existing submersible observation data provides a fresh insight into the detailed morphology and spatial distribution of submerged reefs and terraces at the shelf-edge.