Marine Geophysical Researches

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The sea-floor spreading history of the eastern Indian Ocean
Marine Geophysical Researches - Tập 5 - Trang 225-247 - 1982
Thomas S. Powell, Bruce P. Luyendyk
The geologic history of the eastern Indian Ocean between northwest Australia and the Java Trench is known to involve two separate events of rifting and sea-floor spreading. Late Jurassic spreading in the Argo Abyssal Plain off northwest Australia was followed by Early Cretaceous spreading in the Cuvier and Perth Abyssal Plains off west Australia. However, the evolution and interaction of these eve...... hiện toàn bộ
Multibeam Bathymetry of the Håkon Mosby Mud Volcano
Marine Geophysical Researches - Tập 26 - Trang 61-75 - 2005
Andreas Beyer, Rike Rathlau, Hans Werner Schenke
The Håkon Mosby Mud Volcano is a natural laboratory to study geological, geochemical, and ecological processes related to deep-water mud volcanism. High resolution bathymetry of the Håkon Mosby Mud Volcano was recorded during RV Polarstern expedition ARK XIX/3 utilizing the multibeam system Hydrosweep DS-2. Dense spacing of the survey lines and slow ship speed (5 knots) provided necessary point de...... hiện toàn bộ
Structure of the Malpelo Ridge (Colombia) from seismic and gravity modelling
Marine Geophysical Researches - Tập 27 - Trang 289-300 - 2006
Boris Marcaillou, Philippe Charvis, Jean-Yves Collot
Wide-angle and multichannel seismic data collected on the Malpelo Ridge provide an image of the deep structure of the ridge and new insights on its emplacement and tectonic history. The crustal structure of the Malpelo Ridge shows a 14 km thick asymmetric crustal root with a smooth transition to the oceanic basin southeastward, whereas the transition is abrupt beneath its northwestern flank. Crust...... hiện toàn bộ
GLORIA image processing: The state of the art
Marine Geophysical Researches - Tập 12 - Trang 21-39 - 1990
R. C. Searle, T. P. Le Bas, N. C. Mitchell, M. L. Somers, L. M. Parson, PH. Patriat
This chapter presents a summary of the image-processing techniques being used at present in the Institute of Oceanographic Sciences Deacon Laboratory's GLORIA long-range sidescan sonar system. It begins with a brief review of the development of GLORIA, and then describes in outline the present shipboard data acquisition, recording and replay system, including simple image-processing techniques tha...... hiện toàn bộ
Geophysical investigations of crust-scale structural model of the Qiongdongnan Basin, Northern South China Sea
Marine Geophysical Researches - Tập 34 - Trang 259-279 - 2013
Ning Qiu, Zhenfeng Wang, Hui Xie, Zhipeng Sun, Zhangwen Wang, Zhen Sun, Di Zhou
Rifting of the Qiongdongnan Basin was initiated in the Cenozoic above a pre-Cenozoic basement, which was overprinted by extensional tectonics and soon after the basin became part of the rifted passive continental margin of the South China Sea. We have integrated available grids of sedimentary horizons, wells, seismic reflection data, and the observed gravity field into the first crust-scale struct...... hiện toàn bộ
Submersible structural study of Tamayo transform fault: East Pacific Rise, 23�N (project RITA)
Marine Geophysical Researches - Tập 4 Số 4 - Trang 381-401 - 1981
Léo Pastouret
The influence of the grid resolution on the accuracy of the digital terrain model used in seabed modeling
Marine Geophysical Researches - Tập 36 - Trang 35-44 - 2014
Wojciech Maleika
Modern digital terrain models (DTM) are widely used in the exploration of water areas. The models are often based on bathymetric data from a multibeam echosounder. DTM creators should properly select model parameters, firstly the grid resolution. High grid resolution enables creating very accurate models, however, they require high computing power and the data gathered in the grid occupy much more...... hiện toàn bộ
Geohazard identification: the gap between the possible and reality in geophysical surveys for the engineering industry
Marine Geophysical Researches - Tập 32 - Trang 37-47 - 2011
Julie M. Dyer
Offshore Contractors engaged in the business of installing pipelines and subsea structures routinely rely on third party survey data to identify and assess the risk of surface and buried geohazards. In many cases, route or site survey data are supplied to a marine Contractor with the latter having little or no input to the manner in which the geophysical and geotechnical data are acquired, process...... hiện toàn bộ
Spatial variability of prodeltaic undulations on the Guadalfeo River prodelta: support to the genetic interpretation as hyperpycnal flow deposits
Marine Geophysical Researches - Tập 36 - Trang 309-333 - 2014
F. J. Lobo, J. A. Goff, I. Mendes, P. Bárcenas, L. M. Fernández-Salas, W. Martín-Rosales, J. Macías, V. Díaz del Río
Two fields of prodeltaic undulations located off the Guadalfeo River were studied by integrating surficial (multibeam bathymetry, backscatter, sediment samples) and sub-surface (seismic profiles, sediment cores) data. Our main motivation was to analyze the along- and across-shelf variability of the seafloor undulations, in order to obtain useful insights into genetic mechanisms. A geostatistical ...... hiện toàn bộ
Books received
Marine Geophysical Researches - - 1976
Tổng số: 801   
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