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132 results for “Continental margin”
Fig. 9 in New and known Halichoanolaimus de Man, 1886 species (Nematoda: Selachinematidae) from New Zealand's continental margin
Fig. 9. Halichoanolaimus funestus sp. nov. Light micrographs of paratype ♀ (NIWA 139249). A. Cuticle in mid-body region showing arrangement of pore complexes. B. Cuticle near tail region showing arrangement of pore complexes. Scale bar = 10 µm.
Deep mantle component and continental crust remobilization in the source of Vesteris Seamount, East Greenland margin
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Supplementary material for "The signature of lithospheric anisotropy at post-subduction continental margins: new insight from XKS splitting analysis in northern Borneo"
<p><strong>Supplementary material for the manuscript "The signature of lithospheric anisotropy at post-subduction continental margins: new insight from XKS splitting analysis in northern Borneo" by Bacon, C.A., Rawlinson, N., Pilia, S., Gilligan, A., Wehner, D., Cornwell, D.G., and Tongkul, F., submitted for publication in Geochemistry, Geophysics, Geosystems.</strong><br> <br> The material has been divided into 3 directories:</p> <ul> <li><em>a_supplementary_datafiles </em>- datafiles listed in the supplementary file accompanying the manuscript</li> <li><em>b_2018-2020</em> - SplitRacer directory for the time period of the nBOSS network deployment, containing: <ul> <li>Cut and bandpass filtered waveforms</li> <li>Metadata files required to run SplitRacer</li> <li>Splitting results (single splitting and joint splitting, where possible)</li> </ul> </li> <li><em>c_2006-2020 </em>- SplitRacer directory for the time period of the KKM/LDM permanent station deployments, containing: <ul> <li>Cut and bandpass filtered waveforms</li> <li>Metadata files required to run SplitRacer</li> <li>Splitting results (single splitting and joint splitting, where possible)</li> </ul> </li> </ul> <p>Directories <em>b </em>and <em>c </em>are valid SplitRacer projects that can be loaded directly and processed from the measurement stage onward.</p>
X-ray diffraction (XRD) measurement of bulk and clay mineral composition at India National Gas Hydrate Program 01 (NGHP-01) Sites on the Indian continental margin (Krishna-Godavari Basin, Kerala-Konkan Basin, Mahanadi Basin, Andaman Sea)
<p>This dataset contains bulk and clay mineral relative abundances measured by X-ray diffraction (XRD) measured at 12 offshore sites drilled and cored during the Indian National Gas Hydrate Program 01 (NGHP-01) in 2006 by the JOIDES Resolution. Sediment samples from from the Kerala-Konkan Basin, Arabian Sea (Hole 01A), the Krishna-Godavari Basin, Bay of Bengal (Holes 03B, 05C, 07BD, 10BD, 14A, 15A, 16A, 20AB), the Andaman Sea (Hole 17A), and the Mahanadi Basin, Bay of Bengal (Holes 18A, 19A) were measured for bulk and clay XRD at the University of Missouri using a Scintag Pad V X-ray diffractometer.</p> <p>These sites are between 895 and 2663 m of water depth and were from drilled to depths between 172 and 675 m below seafloor. These data were published in:</p> <p><strong>Phillips, S.C., Johnson, J.E., Underwood, M.B., Guo, J., Giosan, L., and Rose, K., 2014. Long-timescale variation in bulk and clay mineral composition of Indian continental margin sediments in the Bay of Bengal, Andaman Sea, and Arabian Sea. <em>Marine and Petroleum Geology</em> 58A, 117-138, https://doi.org/10.1016/j.marpetgeo.2014.06.018 <a href="https://doi.org/10.1016/j.marpetgeo.2014.06.018">Link</a></strong></p> <p>Samples were collected at a resolution of approximately 1 per core. Four-component relative abundances (total clay, quartz, feldspar, calcite) of bulk sediment powders were calculated using a singular value decomposition (Fisher and Underwood, 1995). Clay fractions were prepared using the filter peel method and 0.45-mm membranes, and saturated with ethylene glycol (Moore and Reynolds, 1997). Clay mineral relative abundances (illite, smectite, kaolinite, chlorite) were calculated using the method of Biscaye (1965) for comparison with previously measured studies from the Indian Ocean. See Phillips et al. (2014) for additional information.</p> <p>References:</p> <p>Biscaye, P.E., 1965. Mineralogy and sedimentation of recent deep-sea clay in the Atlantic Ocean and adjacent seas and oceans. <em>Geological Society of America Bulletin</em>. 76, 803-832. https://doi.org/10.1130/0016-7606(1965)76[803:MASORD]2.0.CO;2</p> <p>Fisher, A.T., Underwood, M.B., 1995. Calibration of an X-ray diffraction method to determine relative mineral abundances in bulk powders using matrix singular value decomposition: a test from the Barbados accretionary complex. In: Shipley, T.H., Ogawa, Y., Blum, P. (Eds.), <em>Proceedings of the Ocean Drilling Program, Initial Reports</em>, vol. 156, pp. 29-37. doi:10.2973/odp.proc.ir.156.103.1995</p> <p>Moore, D.M., Reynolds, R.C., 1997. X-ray <em>Diffraction and the Identification and Analysis of Clay Minerals</em>, second ed. Oxford University Press, New York.</p> <p>Phillips, S.C., Johnson, J.E., Underwood, M.B., Guo, J., Giosan, L., and Rose, K., 2014. Long-timescale variation in bulk and clay mineral composition of Indian continental margin sediments in the Bay of Bengal, Andaman Sea, and Arabian Sea. <em>Marine and Petroleum Geology</em> 58A, 117-138, https://doi.org/10.1016/j.marpetgeo.2014.06.018</p>
Data used to produce the results for the article "Clustering to characterize extreme marine conditions for the benthic region of Northeastern Pacific continental margin"
<div>This repository contains a zip file with all of the modelled environmental data needed to reproduce the results in Holdsworth et al 2024 (currently in prep, but the link will be included eventually). Regional ocean model simulations of the Canadian Northeastern Pacific ocean were conducted using the <strong>N</strong>ucleus for <strong>E</strong>uropean <strong>M</strong>odelling of the <strong>O</strong>cean v 3.6 (NEMO). The hindcast extended from 1996 to the end of 2019. <br> </div> <div>The variables included are: <div>T - potential temperature </div> <div>S - salinity</div> <div>O2 - dissolved oxygen</div> <div>DIC - dissolved inorganic carbon, </div> <div>ALK- total alkalinity</div> <div>OmegaA - the aragonite saturation state</div> <div>AOU - apparent oxygen utilization</div> </div> <div> </div> <div>processed/daily/clim: Contains the climatological values for relevant variables in each cluster.</div> <div> </div> <div>AOU, T, and OmegaA were used for kmeans clustering in Holdsworth et al. 2024. </div> <div> </div> <div>processed/daily/by_year/by_cluster/n_clusters_6/: Contains the interannual data for each cluster. </div>
Fig. 5 in Tectonic history and the biogeography of the freshwater fishes from the coastal drainages of eastern Brazil: an example of faunal evolution associated with a divergent continental margin
Fig. 5. Schematic diagram of origin and erosional SE-NW retreat of Serra do Mar coastal range in region between inland Paraná basin, and the Santos basin, coast of SE Brazil. 1- Eroded Senonian uplift, allowing deposition in both Santos and Paraná basins. Alkaline volcanism (A); Santos Fault (F). 2- Development of the Japi Erosional Surface at the end of Senonian. 3- Paleocene deformation of the Japi Surface (isostatic adjustment). Serra do Mar (SM) is generated at Santos Fault (F), system of continental rifts originated and continental platform formed in coast (P). 4- Erosional retreat (R) of Serra do Mar toward present position. The approximate position of Depressão Periférica is indicated (DP). Alkaline intrusions represent islands. Conventions: 1. Santos formation deposits, 2. Phanerozoic cover beneath the Serra Geral basalt, 3. Serra Geral Formation, 4. Alkaline bodies, 5. Bauru Group, 6. Faults (fromAlmeida & Carneiro, 1998).
Fig. 1 in Tectonic history and the biogeography of the freshwater fishes from the coastal drainages of eastern Brazil: an example of faunal evolution associated with a divergent continental margin
Fig. 1. Crustal provinces of South America. I – South American Platform; II – Patagonian massif; III – Andean orogenic belt; IV – foreland basins; AM = Amazon craton; SL = São Luis craton; SF = São Francisco craton; LA = Luiz Alves craton; RP = Rio de la Plata craton; B = Borborema province; T = Tocantins province; M = Mantiqueira province; DF = Dom Feliciano belt. (Modified from Cordani et al., 2000 and Cordani & Sato, 1999).
Modeling tectonics and surfaces processes interaction in a continental and marine environment : the case of the Algerian margin
<p><em><strong>The dataset :</strong></em></p> <p>The directory DATASET.zip provides data from an analog modeling experiment investigating the mechanics of passive margin tectonic inversion and the couplings between tectonics and onshore/offshore morphogenetic processes, applied to the study of the Plio-Quaternary evolution of the Algerian Margin (Northern Africa). This experiment is fully described and the model outcomes discussed in Strzerzynski et al. (submited to JGR 06/2020).</p> <p>The data set contains three Movies (referenced as 2D-S1, 3D-S2 and 2D-S3.mp4) showing the model evolution from three different points of view. Movie 2D-S1.mp4 and Movie 3D-S2.mp4 correspond to general upper and oblique views of the whole experiment, respectively. Movie Zoom 2D-S3.mp4 shows a focused upper view of a part of the experiment during the margin tectonic inversion.</p> <p>Model evolution consists first by a massive sea level drop down and low stand in absence of tectonics simulating the Messinian Salinity Crisis (between 2'' and 28'' of video record) followed by an instantaneous, (rainfall is stopped), sea level rise (between 28'' and 41'' of video record). Second, after a short period of quiescence, shortening is applied to the model leading to the tectonic inversion of the margin (last 60 second of the record).</p> <p><em><strong>The analog model :</strong></em></p> <p>The experimental set-up used in this study has been developed at the Geosciences Montpellier Analog Modeling laboratory at the University of Montpellier, France (contact: Dr. S. Dominguez, <a href="mailto:stephane.Dominguez@gm.univ-montp2.fr">stephane.Dominguez@gm.univ-montp2.fr</a>). It is constituted by a mechanical apparatus to deform the analogue model, a rainfall system to erode its surface, and a digital monitoring device used to quantify model evolution during the experiment. The deformation device is made of an aluminum structure supporting a bended PVC plate bounded by glass/PVC walls and a rigid backstop. A Mylar/carbon sheet, lying on the PVC plate, is pulled beneath the backstop using a computerized stepping motor to impose model shortening. The rainfall system uses up to 8 sprinklers to diffuse water micro-droplets over the model surface. Water runoff enhances erosion of the emerged part of the model triggering several natural processes shaping the topography such as; channel incision in the drainage network, slope diffusion and gravity controlled landslides. In the submarine part of the model, sedimentation processes dominate but gravity driven instabilities also contribute to shape the submarine morphology.</p>
Travel times of wide-angle seismic refraction profile OBS2020-1 at the northern continental margin of South China Sea
<p>The dataset contains travel times (including the primary and secondary phases) of the OBS2020-1 profile with 11 OBS stations at the northern continental margin of SCS.</p>
Seismic evidence for a weakened thick crust at the Beaufort Sea continental margin
<p>This compressed folder contains raw seismic waveforms used to determine the three-dimensional seismic velocity structure beneath the Beaufort Sea continental margin of northwestern Canada.</p> <p>Estève, C.,<strong> </strong>Liu, Y., Koulakov, I., Schaeffer, A.J, and Audet, P., Seismic evidence for a weakened thick crust at the Beaufort Sea continental margin <em>(Geophysical Research Letters</em>).</p>
Continental Influence on the Fertilization of Marine Waters during the Late Quaternary in the South of the Brazilian Continental Margin
<p>Concentration and percentages of palynomorphs, diatoms and marine indicators.</p>
FIGURE 3 in The sand shrimp genus Philocheras (Caridea: Crangonidae) from the continental margin of Western Australia including the description of a new species and a key to Australian species*
FIGURE 3. Carapace (dorsal view) of Philocheras species reported from Australian waters: P. angustirostris redrawn from De Man (1918: pl. 22 fig. 67); P. anthonyi reproduced from type illustration herein (fig. 1B); P. brucei redrawn from Komai (2004: fig. 1); P. flindersi redrawn from Poore (2004: fig. 36g); P. incisus redrawn from Kemp (1916: pl. 8 fig. 1); P. intermedius redrawn from Poore (2004: fig. 36h); P.japonicus redrawn from De Man (1918: pl. 23 fig. 69); P. lowisi redrawn from Kemp (1916: pl. 8 fig. 2).
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Allen Brain Atlas
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Annotated Behaviour and Observability Dataset (ABODe)
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DANDI Archive for NWB datasets
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International Brain Laboratory public data
The International Brain Laboratory public data releases expose standardized mouse decision-making experiments, including Neuropixels recordings, widefield calcium imaging, behavior, and session metadata accessed through the ONE API.
OpenNeuro
OpenNeuro is a free, open platform for sharing neuroimaging datasets, with public search, dataset pages, and download paths for web, S3, DataLad, and the OpenNeuro CLI.