Showing papers in "Marine Geology in 2002"

TL;DR: Sediment waves are generated beneath currents flowing across the seabed, in the form of either downslope-flowing turbidity currents or alongslope flow bottom currents as mentioned in this paper.

TL;DR: The terrigenous fraction of sediments recovered from Walvis Ridge, SE Atlantic Ocean, reveals a history of southwestern African climate of the last 300 kyr as discussed by the authors, which is attributed to the intensity of the SE trade winds.

TL;DR: The Porcupine Basin, southwest of Ireland, was one of the earliest sites from where the deep-water corals Lophelia sp. and Madrepora sp. were recovered as mentioned in this paper.

TL;DR: In this article, it was shown that uncorrelated variables acquire spurious correlations when normalized, and a number of realistic scenarios were worked out to show that the correlations between normalized element contents still suffer from the closure effect.

TL;DR: The Bahamas transect as mentioned in this paper consists of seven cores drilled in the prograding western margin of Great Bahama Bank and two proximal cores (Clino and Unda) were drilled on the platform top and recovered shallow-water platform to reef facies overlying deeper margin and proximal slope facies.

TL;DR: A reassessment of these features strongly suggests that numerous turbidity currents, separated by intervals of ambient hemipelagic sedimentation, deposited the wave fields over thousands of years as discussed by the authors.

TL;DR: In this article, the location of the drill sites offshore the Pearl River suggests that this river or its predecessor may have been the source of the sediment in the basin, which accounts for only ∼1.8% of the total Neogene sediment in South China Sea.

TL;DR: A tripartite classification of gravel beaches, based upon morphodynamic properties, is proposed and demonstrated for 42 New Zealand beaches as mentioned in this paper, which can be applied globally in the field and is underpinned by morphodynamic differences between the beach types.

TL;DR: In this article, the authors compared sediment waves developed on six submarine fan systems using high-resolution seismic-reflection profiles, sediment core samples (including ODP drilling), multibeam bathymetry, 3D seismic-reflect imaging (including examples of burried features), and direct measurements of turbidity currents that overflow their channels.

TL;DR: In this article, a high-resolution seismic data from the East China Sea, correlated to geotechnical boreholes and shallow cores, demonstrate the potential of sand ridge preservation and allow reconstruction of the depositional history of Pleistocene fourth order (100-kyr) depositional sequences.

TL;DR: In this paper, the authors used the Global Positioning System slip vectors and with stratigraphic results implies that the North Anatolian Fault reached into the Marmara Sea region about 3.5 million yr ago.

TL;DR: In this article, scale-controlled interpolation of bathymetric features that were unresolved or poorly resolved (e.g. beach cusps) introduced the potential for contamination in two of the data sets, leading to more accurate representations of the actual bathymetry.

TL;DR: In this paper, the authors studied morphological change in the Ribble Estuary (northwest England) using bathymetric charts, topographical surveys and remote sensing data.

TL;DR: In this paper, multi-proxy data and radiocarbon dates from several key cores from the Black Sea and Marmara Sea document a complex paleoceanographic history for the last V30 000 yr.

TL;DR: In this paper, a series of high-resolution cores from the upper continental slope off Romania in the western Black Sea provide a continuous, highresolution record of sedimentation rates, clay mineralogy, calcium carbonate content, and stable isotopes of oxygen and carbon over the last 20 000 yr.

TL;DR: In this paper, the main acritarchs are Sigmopollis psilatum, Concentricystes cf. rubinus and cf. acritarch-8 of Traverse (1978), all of which are absent from the Aegean Sea and decrease in abundance with increasing salinity.

TL;DR: In this article, the authors compared before and after airborne lidar surveys of the central California coast during the El Nino winter of 1997-1998 and found that the width and elevation of beaches were least where maximum cliff erosion occurred, preferentially exposing cliffs to wave attack.

TL;DR: In this article, the authors combined EM-300 multibeam bathymetric data and satellite photography to reveal the seafloor physiography of the continental margin between 35°50′ and 37°03′N and from the shoreline west of 122°40′ and 122°37′W, which includes Monterey Bay, in a previously unprecedented detail.

TL;DR: In this paper, a detailed interpretation of single channel seismic reflection and deep-tow boomer and sparker profiles demonstrates that the southwestern Black Sea shelf formed by a protracted shelf-edge progradation since the Miocene-Pliocene.

TL;DR: In this article, the authors used linear elastic fracture mechanics (LEFM) to determine the critical stress intensity factor for bubble growth by fracture in natural sediments, which is a material property and the principal determinant of bubble shape.

TL;DR: Benthic foraminifera were studied from four gravity cores that penetrated Holocene marine sediments in the Marmara Sea, and morphogroup and assemblage analyses reveal that the Holocene sea-level rise did not result in a catastrophic flooding event as proposed by W.B.F. Ryan and others, whereby well-oxygenated, saline Mediterranean waters rapidly inundated a low-lying low salinity ‘Black Sea Lake’ at V7.15 ka (popularly known as the ‘Noah’s Flood Hypot

TL;DR: In this paper, the authors investigated the pathways of methane formation and anaerobic oxidation in the lower Cretaceous, Dogger-Beta-Hauptsandstein Schwedeneck field in Eckernforde Bay.

TL;DR: In this article, high-resolution OREtech sidescan sonar data were acquired over two provinces of the Porcupine Seabight (Northeast Atlantic) at a depth of 500-1200 m, associated with the growth of cold-water deep-sea coral species such as Lophelia pertusa (L.) or Madrepora oculata (L.).

TL;DR: In this article, the authors used the softcopy/geographic information system (GIS) methodology to estimate cliff retreat rates for the southern half of Santa Cruz County, CA, USA, located within the Monterey Bay National Marine Sanctuary.

TL;DR: In this article, the downcore variation in Sr and Nd isotopic composition indicates climatically induced changes in sediment provenance from two isotopically distinct end-members: (1) Eurasian shelf sediments as a distal source; and (2) Svalbard bedrock as a proximal source that coincide with a change in transport mechanism from sea ice to glacial ice.

TL;DR: In this paper, high-resolution benthic oxygen isotope and XRF (Fe and Ca) records from Site 1085 drilled in the Mid-Cape basin (ODP Leg 175) are used to investigate global climate changes during the Late Miocene in relation to Messinian geological events.

TL;DR: In this article, the slope failure potential as a possible tsunamiigenic source in the Sea of Marmara by utilizing multi-beam bathymetry, shallow and deep seismic reflection data was determined.

TL;DR: In this article, a bottom simulating reflector (BSR) is used to measure the phase transition from the methane hydrate layer above the reflector to free gas below, in the Nankai accretionary prism off Shikoku and Tokai.

TL;DR: This article used the trap records as a reference for comparison with three boxcore recorders in order to quantify the carbonate dissolution along a depth transect, and found that only a small fraction of the foraminiferal carbonate production is buried and removed from the carbon cycle.