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167 results for “granite”
Intrinsic elastic anisotropy of Westerly granite observed by ultrasound measurements, microstructural investigations and neutron diffraction
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Data from: The fracture failure of granite after varied durations of thermal treatment: an experimental study
Energy-extraction from nuclear materials produces high-level radioactive waste (HLW). In geological nuclear waste storage repositories, the decay of radioactive elements generates heat, exposing the reservoir rocks to high-temperature conditions for long periods. To explore the effects of these conditions, this study examines the ability of granite to resist fracturing after thermal treatment for 10 hours, 10 days, 30 days, and 60 days. The results show that: The fracture toughness of the granite remained basically unchanged with up to 10 days of thermal treatment. After thermal treatment for 60 days, the mode-I, mode-II and mixed-mode (I+II) fracture toughness decreased by 15.39%, 18.07% and 15.18%, respectively, compared with samples heated for 10 hours. The change trends of the ability of granite to resist tensile, shear and mixed (tensile + shear) failure with increased thermal treatment duration were basically consistent. Moreover, there was little change in its brittle fracturing characteristics with increase heating duration. Changes caused to the internal microstructure of the granite by high temperature were ongoing even up to 60 days.
FIGURES 20–21 in Paroster baylyi sp. n., P. ursulae sp. n. (Col. Dytiscidae, Hydroporinae) and the water beetle diversity of pan-gnammas on isolated granite outcrops in the Mallee of south-western Australia
FIGURES 20–21. Paroster baylyi sp. n., ventral side of 20) protarsus and 21) mesotarsus.
FIGURE 2. Domene viriatoi n in A new species of Domene Fauvel, 1873 (Coleoptera: Staphylinidae: Paederinae) from a granitic cavity in Serra da Estrela (Portugal)
FIGURE 2. Domene viriatoi n. sp. adult.
FIGURE 6 in A new species of Domene Fauvel, 1873 (Coleoptera: Staphylinidae: Paederinae) from a granitic cavity in Serra da Estrela (Portugal)
FIGURE 6. Genital segment of Domene viriatoi n. sp. (ventral view): (a), male; (b), female.
FIGURE 1 in A new species of Domene Fauvel, 1873 (Coleoptera: Staphylinidae: Paederinae) from a granitic cavity in Serra da Estrela (Portugal)
FIGURE 1. Buraco da Moura topographic profile showing the pitfall trapping locations.
FIGURES 1–3. Ptomaphaminus granophilus n in One new species of Ptomaphaminus Perreau, 2000 (Coleoptera: Leiodidae: Cholevinae: Ptomaphagini) from a granitic subterranean environment in Vietnam
FIGURES 1–3. Ptomaphaminus granophilus n. sp. 1-2: biotope: the granitic blockfield. 3: habitus.
FIGURE 17 in One new species of Ptomaphaminus Perreau, 2000 (Coleoptera: Leiodidae: Cholevinae: Ptomaphagini) from a granitic subterranean environment in Vietnam
FIGURE 17. Distribution map of the genus Ptomaphaminus from Indo-China Peninsula.
Merged HLS2 (L30), ERA5-Land inputs and sample predictions of land surface temperature for the IBM granite-geospatial-land-surface-temperature model
<p>This dataset contains merged Harmonized Landsat-Sentinel 2 (HLS2) (L30 only) and ERA5-Land data following the UTM CRS:WGS84. It has been assembled for predicting land surface temperature with a fine-tuned granite geospatial foundation model developed by IBM Research. In addition, we include sample predictions of land surface temperature derived from this model. Please see https://huggingface.co/ibm-granite/granite-geospatial-land-surface-temperature for more information on data preparation and model use.</p> <p><strong>HLS:</strong></p> <p>Masek, J., J. Ju, J. Roger, S. Skakun, E. Vermote, M. Claverie, J. Dungan, Z. Yin, B. Freitag, C. Justice. HLS Sentinel-2 MSI Surface Reflectance Daily Global 30m v2.0. 2021, distributed by NASA EOSDIS Land Processes DAAC, https://doi.org/10.5067/HLS/HLSS30.002 </p> <h4><strong>ERA5-Land:<br></strong></h4> <p>Copernicus Climate Change Service, Climate Data Store, (2024): ERA5-land post-processed daily-statistics from 1950 to present. Copernicus Climate Change Service (C3S) Climate Data Store (CDS), DOI: <a href="https://doi.org/10.24381/cds.e9c9c792">10.24381/cds.e9c9c792</a> (Accessed on 05-11-2024)</p> <h4><strong>LST-predictions:</strong></h4> <p>These predictions of land surface temperature are derived from the IBM granite-geospatial-land-surface-temperature model and have been made available for Abidjan, Côte d’Ivoire and Johannesburg, South Africa for the period 2013-2023. </p> <h4>Attribution</h4> <p>Copernicus programme:</p> <p>Contains modified Copernicus Climate Change Service information [2024]. Neither the European Commission nor ECMWF is responsible for any use that may be made of the Copernicus information or data it contains.</p> <p><strong>Data</strong></p> <p>Muñoz Sabater, J., Comyn-Platt, E., Hersbach, H., Bell, B., Berrisford, P., Biavati, G., Horányi, A., Muñoz Sabater, J., Nicolas, J., Peubey, C., Radu, R., Rozum, I., Schepers, D., Simmons, A., Soci, C., Dee, D., Thépaut, J-N., Cagnazo, C., Cucchi, M. (2024): ERA5-land post-processed daily-statistics from 1950 to present. Copernicus Climate Change Service (C3S) Climate Data Store (CDS), DOI: <a href="https://doi.org/10.24381/cds.e9c9c792">10.24381/cds.e9c9c792</a> (Accessed on 05-11-2024)</p>
Seismic identification method for weathering crust reservoirs in granite buried hills—a case study of buried hills around the Baiyun sag, South China
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Competing controls of fluid overpressurization and chloritization on strength and instability of faults in granite: Implications for seismicity triggered by fluid-injection
<p>Fluids injection for hydraulic stimulation and fracturing, typical in the development of enhanced geothermal systems (EGS) in granites, can reactivate deep faults and induce seismicity. Such faults typically contain chlorite coatings as an alteration product that may impact styles of deformation – aseismic through seismic. We performed shear experiments on simulated granite fault gouges under conditions typifying a geothermal reservoir at ~4 km depth with a confining pressure of 110 MPa, a temperature of 150℃, fluid pressures of 21-80 MPa, and chlorite contents of 0-100%, to investigate the influence of effective stress and mineral composition on fault strength and stability. Our results show a transition from velocity-strengthening to velocity-weakening behavior in simulated granite gouge when the fluid pressure was elevated from 21 to 80 MPa, characterized by a transition from fault compaction to dilation – as revealed by microstructural observations – with implications in enabling unstable failure. Conversely, increasing chlorite content stabilizes slip but reduces frictional strength. The microstructures of these mixed gouges exhibit shear localized on chlorite-enriched planes and promoting fault sliding. These results suggest that earthquake ruptures occurring during fluid injection can be facilitated by fluid overpressures. And that controlling fluid overpressures and being aware of the presence of alteration minerals are both important controls in mitigating such injection-induced seismic risks.</p>
Figure 9 from: Moraes LJCL, Almeida AP, Fraga R, Rojas RR, Pirani RM, Silva AAA, de Carvalho VT, Gordo M, Werneck FP (2017) Integrative overview of the herpetofauna from Serra da Mocidade, a granitic mountain range in Northern Brazil . ZooKeys 715: 103-159. https://doi.org/10.3897/zookeys.715.20288
Figure 9 - Variation in species richness and composition. a, b Extrapolated rarefaction curves showing variation in species richness related to sampling effort at our total sampling a and at distinct altitudinal levels b of the Serra da Mocidade mountain range. Observed data are in full lines and extrapolated in dashed lines c Non-metric multidimensional scaling (NMDS) ordination for amphibian and reptile assemblages from mountain ranges of Guiana Shield highlands and nearby lowland habitats, showing the mixed influence in the Serra da Mocidade composition. Mountain ranges: (MO) Mocidade; (AP) Apiaú; (Du) Duida; (Ma) Marahuaka; (AT) Auyantepui; (Ch) Chimantá; (Gq) Guaiquinima; (NE) Neblina; (TA) Tamacuari; (YU) Yutajé-Corocoro; (RO) Roraima; (SA) Sarisariñama; (NL) Nassau Lely. Lowland habitats: (F1, O1) ESEC Maracá; (F2, O2) PARNA Viruá; (F3, O3) Roraima Lowlands; (F4, O4) Samã and Miang rivers region; (F5, O5) Parque Nacional Canaima; (F6, O6) Parque Nacional da Serra da Mocidade and Estação Ecológica Niquiá; (F7) Kurupukari. References are detailed in the text.
Figure 8 from: Moraes LJCL, Almeida AP, Fraga R, Rojas RR, Pirani RM, Silva AAA, de Carvalho VT, Gordo M, Werneck FP (2017) Integrative overview of the herpetofauna from Serra da Mocidade, a granitic mountain range in Northern Brazil . ZooKeys 715: 103-159. https://doi.org/10.3897/zookeys.715.20288
Figure 8 - Habitat diversity. Examples of habitats sampled in the Serra da Mocidade mountain range. a Submontane rainforest at 600 m asl b Pacú River, main water body near camp #1 c Montane rainforest at 1,060 m asl d, e Rocky streams at 1,060 m asl f Montane rainforest at 1,365 m asl. Photographs by Ramiro Melinski (a–c, e–f).
Figure 6 from: Moraes LJCL, Almeida AP, Fraga R, Rojas RR, Pirani RM, Silva AAA, de Carvalho VT, Gordo M, Werneck FP (2017) Integrative overview of the herpetofauna from Serra da Mocidade, a granitic mountain range in Northern Brazil . ZooKeys 715: 103-159. https://doi.org/10.3897/zookeys.715.20288
Figure 6 - Snake diversity. Examples of snakes recorded in the Serra da Mocidade mountain range. a Chironius septentrionalis b Chironius fuscus c Drymobius rhombifer d Atractus riveroi, morph 1 e Atractus riveroi, morph 2 f Dipsas indica indica g Dipsas pavonina h Imantodes cenchoa. Photographs by Haroldo Palo Jr. (a, b, f–h) and Marcos Amend (d, e).
Figure 7 from: Moraes LJCL, Almeida AP, Fraga R, Rojas RR, Pirani RM, Silva AAA, de Carvalho VT, Gordo M, Werneck FP (2017) Integrative overview of the herpetofauna from Serra da Mocidade, a granitic mountain range in Northern Brazil . ZooKeys 715: 103-159. https://doi.org/10.3897/zookeys.715.20288
Figure 7 - Snake, chelonian and crocodilian diversity. Examples of snakes, chelonians and the crocodilian recorded in the Serra da Mocidade mountain range. a Xenodon rabdocephalus rabdocephalus b Micrurus remotus c Bothrops atrox d Bothrops bilineatus bilineatus e Lachesis muta muta f Mesoclemmys gibba g Platemys platycephala melanonota h Paleosuchus trigonatus. Photographs by Haroldo Palo Jr. (a, c, e–h).
Figure 5 from: Moraes LJCL, Almeida AP, Fraga R, Rojas RR, Pirani RM, Silva AAA, de Carvalho VT, Gordo M, Werneck FP (2017) Integrative overview of the herpetofauna from Serra da Mocidade, a granitic mountain range in Northern Brazil . ZooKeys 715: 103-159. https://doi.org/10.3897/zookeys.715.20288
Figure 5 - Lizard diversity. Examples of lizards recorded in the Serra da Mocidade mountain range. a Anolis fuscoauratus b Anolis planiceps c Cercosaura ocellata d Tretioscincus oriximinensis e Polychrus marmoratus f Thecadactylus rapicauda g Mabuya nigropunctata h Plica plica. Photographs by Haroldo Palo Jr. (a–c, e–h) and Marcos Amend (d).
Figure 4 from: Moraes LJCL, Almeida AP, Fraga R, Rojas RR, Pirani RM, Silva AAA, de Carvalho VT, Gordo M, Werneck FP (2017) Integrative overview of the herpetofauna from Serra da Mocidade, a granitic mountain range in Northern Brazil . ZooKeys 715: 103-159. https://doi.org/10.3897/zookeys.715.20288
Figure 4 - Amphibian diversity. Examples of amphibians recorded in the Serra da Mocidade mountain range. a Boana multifasciata b Osteocephalus taurinus c Stefania sp. d Leptodactylus guianensis e Leptodactylus mystaceus f Physalaemus ephippifer g Pristimantis aff. vilarsi h Epicrionops sp. Photographs by Haroldo Palo Jr. (a, b, d–g), and Marcos Amend (h).
Figure 2 from: Moraes LJCL, Almeida AP, Fraga R, Rojas RR, Pirani RM, Silva AAA, de Carvalho VT, Gordo M, Werneck FP (2017) Integrative overview of the herpetofauna from Serra da Mocidade, a granitic mountain range in Northern Brazil . ZooKeys 715: 103-159. https://doi.org/10.3897/zookeys.715.20288
Figure 2 - Serra da Mocidade. Panoramic views of the Serra da Mocidade mountain range (a) and a typical granitic inselberg formation (b), covered by montane forest. Photographs by Thiago Laranjeiras.
Figure 18 from: Moraes LJCL, Almeida AP, Fraga R, Rojas RR, Pirani RM, Silva AAA, de Carvalho VT, Gordo M, Werneck FP (2017) Integrative overview of the herpetofauna from Serra da Mocidade, a granitic mountain range in Northern Brazil . ZooKeys 715: 103-159. https://doi.org/10.3897/zookeys.715.20288
Figure 18 - Phylogenetic relationships of Tretioscincus. Maximum likelihood phylogenetic tree of Tretioscincus species and populations, based on a 427bp fragment of the 16S mtDNA. Only bootstrap values >80% are shown (5,000 replicates). The GenBank accession numbers appear after the names of downloaded sequences, and specimens from the Serra da Mocidade are highlighted.
Figure 16 from: Moraes LJCL, Almeida AP, Fraga R, Rojas RR, Pirani RM, Silva AAA, de Carvalho VT, Gordo M, Werneck FP (2017) Integrative overview of the herpetofauna from Serra da Mocidade, a granitic mountain range in Northern Brazil . ZooKeys 715: 103-159. https://doi.org/10.3897/zookeys.715.20288
Figure 16 - Phylogenetic relationships of Stefania. Maximum likelihood phylogenetic tree of Stefania species, based in a 536bp fragment of the 16S mtDNA. Only bootstrap values >80% are shown (5,000 replicates). The GenBank accession numbers appear after the names of downloaded sequences, species numbers of undescribed taxa follow Kok et al. (2017) and specimens from the Serra da Mocidade are highlighted.
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Allen Brain Atlas
Allen Brain Atlas is an Allen Institute collection of brain map atlases, datasets, APIs, and analysis tools covering mouse, human, and non-human primate brain resources.
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.