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16 results for “oceanic mantle”
Supplementary Videos for "The Stability of Dense Oceanic Crust Near the Core-Mantle Boundary"
<p>Supplementary video files for manuscript "The Stability of Dense Oceanic Crust Near the Core-Mantle Boundary". </p> <p>Contains movies for simulations, B0.00, B0.22, B0.33, B0.44, B0.55, B0.66, B0.77, B0.88 showing the temporal evolution of the temperature anomaly and bulk composition fields for a view of the 3D mantle domain with a segment removed. </p>
Data from: Ocean acidification induces subtle shifts in gene expression and DNA methylation in mantle tissue of the Eastern oyster (Crassostrea virginica)
<p><b><span>Early evidence suggests that DNA methylation can mediate phenotypic responses of marine calcifying species to ocean acidification (OA). Few studies, however, have explicitly studied DNA methylation in calcifying tissues through time. Here, we examined the phenotypic and molecular responses in the extrapallial fluid and mantle (fluid and tissue at the calcification site) in adult eastern oyster (</span><span>Crassostrea virginica</span><span>) exposed to experimental OA over 80 days. Oysters were reared under three experimental </span><span>p</span><span>CO</span><span><span>2</span></span><span> treatments ('control', 580 μatm; 'moderate OA', 1000 μatm; 'high OA', 2800 μatm) and sampled at 6 time points (24 hours - 80 days). We found that high OA initially induced an increase in the pH of the extrapallial fluid (pH</span><span><span>EPF</span></span><span>) relative to the external seawater that peaked at day 9, but then diminished over time. Calcification rates were significantly lower in the high OA treatment compared to the other treatments. To explore how oysters regulate their extrapallial fluid, gene expression and DNA methylation were examined in the mantle-edge tissue of oysters from days 9 and 80 in the control and high OA treatments. Mantle tissue mounted a significant global molecular response (both in the transcriptome and methylome) to OA that shifted through time. Although we did not find individual genes that were significantly differentially expressed under OA, the pH</span><span><span>EPF</span></span><span> was significantly correlated with the eigengene expression of several co-expressed gene clusters. A small number of OA-induced differentially methylated loci were discovered, which corresponded with a weak association between OA-induced changes in genome-wide gene body DNA methylation and gene expression.</span><span> </span><span>Gene body methylation, however, was not significantly correlated with the eigengene expression of pH</span><span><span>EPF</span></span><span>-correlated gene clusters. These results suggest that OA induces a subtle response in a large number of genes in </span><span>C. virginica</span><span>, but also indicate that plasticity at the molecular level may be limited. Our study highlights the need to reassess our understanding of tissue-specific molecular responses in marine calcifiers</span><span>, </span><span>as well as the role of DNA methylation and gene expression in mediating physiological and biomineralization responses to OA. </span></b></p>
Data sets for "Formation of an Al-rich niccolite-type silica in subducted oceanic crust: implications for water transport to the deep lower mantle"
<p>This is the XRD and IR datasets for the article "Formation of an Al-rich niccolite-type silica in subducted oceanic crust: implications for water transport to the deep lower mantle" by Liu and Yuan et al.</p>
Supplemental Dataset: Seismological evidence for girdled olivine lattice-preferred orientation in oceanic lithosphere and implications for mantle deformation processes during seafloor spreading
<p>This repository contains supplementary datasets for the manuscript titled "Seismological evidence for girdled olivine lattice-preferred orientation in oceanic lithosphere and implications for mantle deformation processes during seafloor spreading", published in G-Cubed. All files are Microsoft Excel tables containing olivine fabric data.</p> <p>ds01_strain_data_ol60.xlsx: Anisotropy magnitude and fast directions for sample data shown in Figure 3 of the main text, assuming 60% olivine and 40% pyroxene (see methods for details).</p> <p>ds02_strain_data_ol100.xlsx: Anisotropy magnitude and fast directions for sample data shown in Figure 3 of the main text, assuming pure olivine.</p> <p>ds03_fabric_data_ol75.xlsx: Anisotropy fabric data shown in Figure 5 of the main text, assuming 75% olvine and 25% pyroxene (see methods for details).</p> <p>ds04_fabric_data_ol100.xlsx: Anisotropy fabric data shown in Figure 5 of the main text, assuming pure olivine.</p> <p> </p>
Supporting dataset for manuscript "Direct viscosity measurement of peridotite melt under lower-mantle conditions supports a fractional magma ocean solidification at top lower mantle conditions"
<p>Supporting material for manuscript "<strong>Direct viscosity measurement of peridotite melt under lower-mantle conditions supports a fractional magma ocean solidification at top lower mantle conditions"</strong></p>
Data from: Ocean acidification induces subtle shifts in gene expression and DNA methylation in mantle tissue of the Eastern oyster (Crassostrea virginica)
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FIGURE 3 in Hypselodoris jacksoni, a new species from the south-western Pacific Ocean (Nudibranchia: Chromodorididae), with a discussion on intraspecific variation in mantle glands in Chromodoris willani Rudman, 1982
FIGURE 3. Hypselodoris jacksoni sp. nov. (A) Schematic arrangement of mantle glands; (B) Light micrograph of double row of posterior mantle glands (arrowed) (paratype QM, MO.71813).
FIGURE 1 in Hypselodoris jacksoni, a new species from the south-western Pacific Ocean (Nudibranchia: Chromodorididae), with a discussion on intraspecific variation in mantle glands in Chromodoris willani Rudman, 1982
FIGURE 1. Distribution map for Hypselodoris jacksoni sp. nov. Area shaded dark grey represents limits of observed occurrence.
FIGURE 2 in Hypselodoris jacksoni, a new species from the south-western Pacific Ocean (Nudibranchia: Chromodorididae), with a discussion on intraspecific variation in mantle glands in Chromodoris willani Rudman, 1982
FIGURE 2. Hypselodoris jacksoni sp. nov. (A) 35mm, Split Solitary Island, northern New South Wales, Australia, 1986. Photo C. Buchanan. (B) 39mm, "The Fireplace", Duncombe Bay, Norfolk Island, 22 March 1992. Photo R.C. Willan. (C) upper animal 35 mm, Flinders Reef, southern Queensland, Australia, 12 November 1983; lower animal 33 mm, Tangalooma, southern Queensland, Australia, 12 November 1983. Photo R.C. Willan. (D) Holotype. NTM P23398, 34 mm, "Shag Rocks", North Stradbroke Island, southern Queensland, Australia, 17 June 1981. Photo R.C. Willan.
FIGURE 6 in Hypselodoris jacksoni, a new species from the south-western Pacific Ocean (Nudibranchia: Chromodorididae), with a discussion on intraspecific variation in mantle glands in Chromodoris willani Rudman, 1982
FIGURE 6. Mantle gland variation between individuals of Chromodoris willani (n=10). Configuration A was displayed by two individuals, each other configuration represents a single animal. An additional animal displayed a pattern similar to G and H.
FIGURE 4 in Hypselodoris jacksoni, a new species from the south-western Pacific Ocean (Nudibranchia: Chromodorididae), with a discussion on intraspecific variation in mantle glands in Chromodoris willani Rudman, 1982
FIGURE 4. Hypselodoris jacksoni sp. nov. (SAM D19271) SEMs of radula and jaws (A) Central section of radula; note two denticles on inner face of innermost lateral (arrowed); (B) Middle section of half row of radula showing middle lateral teeth; (C) Outer edge of half row of radula showing detail of outermost lateral teeth; (D) Inner face of jaw showing detail of mandibular rodlets.
FIGURE 5 in Hypselodoris jacksoni, a new species from the south-western Pacific Ocean (Nudibranchia: Chromodorididae), with a discussion on intraspecific variation in mantle glands in Chromodoris willani Rudman, 1982
FIGURE 5. Hypselodoris jacksoni sp. nov. (SAM D19271) Reproductive system of a mature individual. Abbreviations: a, ampulla; bc, bursa copulatrix; ej, ejaculatory portion of vas deferens; fg, female gland mass; p, penial sac; pr, prostatic portion of vas deferens; rs, receptaculum seminis; u, uterine duct; v, vaginal duct; vg, vestibular gland.
Appendix B for "The ~100 Ma Emperor-Hawaiian chain magmatism: isothermal melting of the oceanic 'plummeting plume' mantle"
<p>This dataset contains nine supplementary tables for the article "The ~100 Ma Emperor-Hawaiian chain magmatism: isothermal melting of the oceanic ‘plummeting plume’ mantle" submitter to Geochimica et Cosmochimica Acta</p>
Supplementary Material from: Extreme mantle heterogeneity revealed by geochemical investigation of in-situ lavas at the central Mohns Ridge, Arctic Mid-Ocean Ridges
<p>Geochemical data (major and trace elements + Pb, Sr and Nd isotopes) from the Mohns and Knipovich Ridges generated during the study: Extreme mantle heterogeneity revealed by geochemical investigation of in-situ lavas at the central Mohns Ridge, Arctic Mid-Ocean Ridges</p>
Data for "Shear zone development in serpentinised mantle: Implications for the strength of oceanic transform faults"
<p>Data (structural data used in serpentinite shear zone maps, Raman point analysis data, and EDS point analysis for oxide weight percents) used in the paper "Shear zone development in serpentinised mantle: Implications for the strength of oceanic transform faults"</p>
Fractional crystallization of a Martian magma ocean and formation of a thermochemical boundary layer at the base of the mantle
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International Brain Laboratory public data
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OpenNeuro
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