Geo-Marine Letters

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Submersible observations of Cretaceous deformations along the Côte d’Ivoire–Ghana transform margin
Geo-Marine Letters - Tập 17 - Trang 49-54 - 1997
J. Benkhelil, J. Mascle, M. Guiraud, C. Basile
The Côte d’Ivoire–Ghana marginal ridge, mainly formed by thick detrital sediments of Lower Cretaceous age, was surveyed by deep dives with the submersible Nautile (Equanaute survey). Samples retrieved during the dives, combined with observations of video and photos records, allowed us to document a compressional event that occurred along the continental margin off Côte d’Ivoire and Ghana, during ...... hiện toàn bộ
Correction to: Bedform evolution and dynamics of a geostrophic current‑swept shelf, northern KwaZulu‑Natal, South Africa
Geo-Marine Letters - Tập 42 - Trang 1-1 - 2022
A. N. Green, B. W. Flemming, J. A. G. Cooper, T. F. Wanda
Sediment density structure derived from textural analysis of cross-sectional X-radiographs
Geo-Marine Letters - Tập 16 - Trang 204-211 - 1996
R. J. Holyer, D. K. Young, J. C. Sandidge, K. B. Briggs
Two image texture analysis procedures, autocorrelation and binary run length, quantify the scales, orientation, and isotropy of density fluctuations imaged in X-radiographs of sediment cross sections from the Arafura Sea (Australia) and Eckernförde Bay (Germany). Image texture-based results agree with traditional bulk methods in some cases and disagree in others. Advantages of imagebased technique...... hiện toàn bộ
The Ninetyeast Ridge in and around the Andaman Trench – an appraisal from marine magnetics
Geo-Marine Letters - Tập 21 - Trang 9-15 - 2001
S. Ghatak, B. Banerjee
Marine magnetic data acquired in a part of the Bay of Bengal between latitudes 12°30′N to 14°N and longitudes 90°54′E to 92°54′E were transformed to frequency domain. These data were used to prepare a sediment isopach map of the study area. The results are in excellent agreement with sediment thicknesses reported in an earlier study for a single seismic reflection profile along 13°N. In addition,...... hiện toàn bộ
Bulk density calibration for X-ray tomographic analyses of marine sediments
Geo-Marine Letters - Tập 19 - Trang 270-274 - 1999
Thomas H. Orsi, Aubrey L. Anderson
A calibration procedure is presented for generating bulk density profiles of intact marine sediment cores using X-ray computed tomography (CT). Developed using both artificial and natural marine sediment samples, the correlation is strong with an R 2 value of 0.98. Similar experiments with carbonate sediments were also strongly linear, but offset from the terrigenous curve, illustrating the influ...... hiện toàn bộ
Structural-morphological and sedimentary features of forearc slope off Miyagi, NE Japan: implications for development of forearc basins and plumbing systems
Geo-Marine Letters - Tập 40 - Trang 309-324 - 2020
Jih-Hsin Chang, Jin-Oh Park, Tzu-Ting Chen, Asuka Yamaguchi, Tetsuro Tsuru, Yuji Sano, Ho-Han Hsu, Kotaro Shirai, Takanori Kagoshima, Kentaro Tanaka, Chiori Tamura
Multibeam (MB) and subbottom profile (SBP) data along the forearc slope off Miyagi, Japan, are combined to investigate structural-morphological and sedimentary structures along the forearc slope of the Japan Trench subduction zone. In addition to dip-oriented slope gullies, the MB data image a nearly dip-perpendicular slope trough bounded by a fault scarp landward of the trench-slope break. Seawar...... hiện toàn bộ
Unifites: structureless muds of gravity-flow origin in Mediterranean basins
Geo-Marine Letters - Tập 1 - Trang 77-83 - 1981
Daniel Jean Stanley
Unifite is the descriptive term applied to a structureless or faintly laminated, often thick, mud layer revealing a fining-upward trend. Study of Mediterranean basins suggests this mud type represents rapid, single event deposition from low-density gravity flows. This interpretation is based on unifite restriction to basin plains, distinct vertical and lateral petrologic trends, and lithofacies as...... hiện toàn bộ
The Hecho Eocene submarine fan system, south-central Pyrenees, Spain
Geo-Marine Letters - Tập 3 Số 2-4 - Trang 199-202 - 1983
Emiliano Mutti
Complex BSR pattern in the Yaquina Basin off Peru
Geo-Marine Letters - Tập 23 Số 2 - Trang 91-101 - 2003
Christian Hübscher, Nina Kukowski
Improvement of deep-sea dredging operations through the use of a depth meter
Geo-Marine Letters - Tập 7 - Trang 39-43 - 1987
H. R. Kudrass
A battery-operated depth meter mounted inside the dredge is used to monitor the time-depth profile of a dredge haul. By comparing is profile with the water depth recorded by the ship's echosounder, the locations at which dredge samples were collected can be determined. The analysis of the time-depth profile can also be used to estimate the minimum length of the dredge wire, thus increasing the eff...... hiện toàn bộ
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