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380 results for “Rifting”
Supplementary Datasets for 'Exploring rift geodynamics in Ethiopia through olivine-spinel Al-exchange thermometry and rare-earth element distributions'
<p>Supplementary Datasets for 'Exploring rift geodynamics in Ethiopia through olivine-spinel Al-exchange thermometry and rare-earth element distributions'.</p> <p>Dataset S1: Qualitative X-ray maps of Mg, Ca, Al, Ni, P in olivine-spinel pairs.<br> Dataset S2: Quantitative EPMA point analyses of olivine and spinel. Includes Sheet 1: Secondary standards; Sheet 2: Sample data.<br> Dataset S3: Full inversion outputs from MultiNest.</p>
UAV-based DEM across the Peiku Co-Gyirong Rift normal faults, southernmost Tibetan
<p>These data are the unmanned aerial vehicle (UAV) topography surveying data (.tif) of several offset fluvial terraces/fans and lake shorelines across the Peiku Co-Gyirong Rift normal faults. The UAV data were acquired by ~100-200-m-high aerial photographs using a DJI (Dajiang Innovations Science and Technology Co., Ltd.) Phantom 4 RTK. High-resolution digital elevation models (DEM) were produced by Agisoft Metashape Professional software.</p> <p> </p>
Geomorphic expressions of active rifting reflect the role of structural inheritance: A new model for the evolution of the Shanxi Rift, North China
<p>A geopackage and associated raster files for the geomorphic indices that were used in this study. Can be opened with the freely available QGIS software. Excel table of fault values used for generation of violin plots in R</p>
Geochronological and geochemical data of volcanic deposits of the Central Main Ethiopian Rift
<p>This database represents a collection of geochronological data, geochemistry of bulk rocks and melt inclusions from a large set of samples collected in the framework of two field surveys (2019, 2020) in the Central Main Ethiopian Rift.</p> <p>This dataset provides supporting information to the paper:<br>Franceschini Z., Cioni R., Scaillet S., Prouteau G., Corti G., Sani F., Mondanaro A., Frascerra D., Melaku A.A., Scaillet B., Oppenheimer C., Duval F. (2024) "Pulsatory volcanism in the Main Ethiopian Rift and its environmental consequences", Nature Communications Earth and Environment.</p> <p>The samples have been prepared for the different analyses at the Department of Earth Sciences of the University of Florence. The geochronological analyses building up the dataset have been performed at the Argon facility at the Institut des Sciences de la Terre d'Orléans (ISTO), in France. The analythical methods related to the 40Ar/39Ar analyses are described in detail in the above mentioned paper.<br>The geochemical dataset contains the results of major and trace elements concentrations on whole rock samples (performed at the Service d'Anlayse des Roches et des Mineraux -CNRS - CRPG of Nancy, in France) and major elements and volatile concentrations of melt inclusions belonging to four ignimbrite samples (analysed with an Electron Micro Probe Analyzer housed at the laboratories of the Institut des Sciences de la Terre d'Orléans, in France).</p> <p>These datasets have been performed in the frame of a PhD fellowship (granted to Zara Franceschini) funded by the Università Italo Francese (Bando Vinci 2018, n. C3-1717) and also partially supported by the Italian Ministero dell'Università e della Ricerca (MiUR) through PRIN grant 2017P9AT72.</p>
Fig. 6 in On the genus Pachygnatha (Araneae, Tetragnathidae) in the Albertine Rift of Burundi, with the description of three new species
Fig. 6. Distribution map of Pachygnatha procincta Bosmans & Bosselaers, 1994.
Dataset for "Early Jurassic rift-related low-pressure-high–temperature granulite facies metamorphism generates widespread peraluminous crustal melts"
<p>This repository contains data for the manuscript "Early Jurassic rift-related low-pressure-high–temperature granulite facies metamorphism generates widespread peraluminous crustal melts" by Anthony Ramírez-Salazar, Mattia Parolari, Arturo Gómez-Tuena, Fernando Ortega-Gutiérrez, and Mariano Elías-Herrera submitted for publication to Geochemistry, Geophysics, Geosystem.</p> <p>The file contains geochemical, isotopic and geochronological data collected from the metapelitic xenoliths of Pepechuca, southern Mexico. All xenoliths were collected between the coordinates 18° 47´ 17.36´´N, 100° 04´ 07.92´´W and 18° 47´ 12.47´´N, 100° 04´ 05.00´´W. The dataset is divided in four tables:</p> <p>Table S1 Xenoliths' Bulk rock major elements<br>Table S2 Xenoliths' trace elements<br>Table S3 Xenoliths' Sr, Nd, Hf and Pb isotopic compositions<br>Table S4 U-Pb and trace element data of the xenoliths</p> <p><br>Anthony Ramírez-Salazar. e-mail: r.s.anthonyy@gmail.com; anthony@geologia.unam.mx</p>
Biogeochemical data from the HIPE project in Lakes Edward and George (East African Rift)
<p>The geo-referenced and timestamped data-set consists of 7 files:</p> <ul> <li>“db_cruise_CTD” contains the CTD profiles obtained during the cruises</li> <li>“db_cruise_GHGs” contains CO2, CH4, N2O dissolved concentrations, chlorophyll-a concentrations, inorganic nutrients (NO3-, N2O-, NH4+, PO43-) and d13C-CH4 from the 4 cruises</li> <li>“db_monitoring” contains CO2, CH4, N2O dissolved concentrations, chlorophyll-a concentrations, and POC from the monitoring at two stations (January 2017 to December 2019)</li> <li>“db_uw” contains the continuous of CO2 and CH4 (plus EXO-II data) on 19/03/2019</li> <li>“meteo_Mweya” contains the meteorological data acquired from June 2016 to March 2019</li> <li>“db_monitoring_CTD” contains the CTD profiles from the deep station of the monitoring.</li> <li>“mooring” contains the temperature data from a mooring at a station 10 m deep (March 2019)</li> </ul> <p> </p> <p>Data were acquired in Lake Edward, Kazinga Channel and Lake George on four occasions (20/10-07/11/2016, 23/03-08/04/2017, 18/01-02/02/2018, 21/03-30/03/2019). From January 2017 to December 2019, a shallow station (3 m bottom depth) and a deeper station (22 m bottom depth) were regularly sampled, every 21 d in 2017 and 2018, and every 30 d in 2019. A mooring was deployed at a station at 10m bottom depth in Lake Edward (-0.2459°N 29.8635°E) equipped with RBR Solo temperature sensors at 6 depths from surface to 1m above the sediment (0.2, 1.0, 2.0, 5.0, 7.5 and 9.0 m depth) from 21/03/2019 (13:00 local time (LT)) to 23/03/2019 (13:50 LT)<em>.</em></p> <p> </p> <p>Solar radiation, ultraviolet radiation, wind speed (cup anemometer), wind direction (wind vane), rain (mechanical rain collector), air temperature, barometric pressure data were acquired with a Davis Instruments weather station (Vantage Pro2 fitted with standard manufacturer sensors) in Mweya on top of a building of the Uganda Wildlife Authority, 4m above ground (-0.190384°N 29.899103°E) . Data were measured every 5 seconds, averaged and logged every 10 minutes.</p> <p>During the March 2019 cruise, continuous measurements (1 min interval) of partial pressure of CO<sub>2</sub> (pCO<sub>2</sub>) and of partial pressure of CH<sub>4</sub> (pCH<sub>4</sub>) were made with an equilibrator designed for turbid waters consisting of a tube filled with glass marbles (Frankignoulle et al. 2001) coupled to a Los Gatos Research off-axis integrated cavity output spectroscopy analyzer (Ultraportable Greenhouse Gas Analyzer with extended range for CH<sub>4</sub>). In parallel water temperature, specific conductivity, pH, dissolved oxygen saturation level (%O<sub>2</sub>), turbidity, chlorophyll-<em>a</em> (Chl-<em>a</em>), and fluorescent dissolved organic matter (FDOM) were measured with an YSI EXO-II multi-parameter probe, position with a Garmin geographical position system (Map 60S) portable probe, and depth with a Humminbird Helix 5 echo-sounder. Surface water was pumped to the equilibrator and the multi-parameter probe (on deck) with a 12V-powered water pump (LVM105) attached to the side of the boat at a fixed depth of about 0.5 m depth.</p> <p>Discrete sampling was done from the side of the boat with a 5.0 L Niskin bottle (General Oceanics). During the first cruise, vertical profiles of water temperature, specific conductivity, pH, %O<sub>2</sub> and Chl-<em>a</em> were measured with a Hydrolab DS5 multi-parameter probe, while during the other three cruises and also during the monitoring, turbidity and FDOM were measured additionally with a YSI EXO-II multi-parameter probe. Both multi-parameter probes were calibrated according to manufacturer’s specifications, in air for %O<sub>2</sub> and with standard solutions for other variables: commercial pH buffers (4.00, 7.00, 10.00), a 1000 µS cm<sup>-1</sup> standard for conductivity. pCO<sub>2</sub> was measured directly after water sampling with a Li-Cor Li-840 infra-red gas analyser (IRGA) based on the headspace technique with 4 polypropylene 60 ml syringes (Borges et al. 2015). The Li-Cor 840 IRGA was calibrated before and after each cruise with ultrapure N<sub>2</sub> and a suite of gas standards (Air Liquide Belgium) with CO<sub>2</sub> mixing ratios of 388, 813, 3788 and 8300 ppm. The overall precision of pCO<sub>2</sub> measurements was ±2.0%.</p> <p>Samples for CH<sub>4</sub> and N<sub>2</sub>O were collected from the Niskin bottle with a silicone tube in 60 ml borosilicate serum bottles (Wheaton), poisoned with 200 µL of a saturated solution of HgCl<sub>2</sub> and sealed with a butyl stopper and crimped with an aluminium cap. Measurements were made with the headspace technique (Weiss 1981) and a gas chromatograph (GC) (SRI 8610C) with a flame ionisation detector for CH<sub>4</sub> and electron capture detector for N<sub>2</sub>O calibrated with CO<sub>2</sub>:CH<sub>4</sub>:N<sub>2</sub>O:N<sub>2</sub> gas mixtures (Air Liquide Belgium) with mixing ratios of 1, 10 and 30 ppm for CH<sub>4</sub>, 404, 1018, 3961 ppm for CO<sub>2</sub>, and 0.2, 2.0 and 6.0 ppm for N<sub>2</sub>O. The precision of measurement based on duplicate samples was ±3.9% for CH<sub>4</sub> and ±3.2% for N<sub>2</sub>O.</p> <p>Samples for the stable isotope composition of CH<sub>4</sub> (δ<sup>13</sup>C-CH<sub>4</sub>) were collected and preserved as described above for the CH<sub>4</sub> concentration. The δ<sup>13</sup>C-CH<sub>4</sub> was determined with a custom developed interface, whereby a 20 ml He headspace was first created, and CH<sub>4</sub> was flushed out through a double-hole needle, non-CH<sub>4</sub> volatile organic compounds were trapped in liquid N<sub>2</sub>, CO<sub>2</sub> was removed with a soda lime trap, H<sub>2</sub>O was removed with a magnesium perchlorate trap, and the CH<sub>4</sub> was quantitatively oxidized to CO<sub>2</sub> in an online combustion column similar to that of an elemental analyzer. The resulting CO<sub>2</sub> was subsequently pre-concentrated by immersion of a stainless steel loop in liquid N<sub>2</sub>, passed through a micropacked GC column (Restek HayeSep Q, 2m length, 0.75mm internal diameter), and finally measured on a Thermo DeltaV Advantage isotope ratio mass spectrometer (IRMS). Calibration was performed with CO<sub>2</sub> generated from certified reference standards (IAEA-CO-1 or NBS-19, and LSVEC) and injected in the line after the CO<sub>2</sub> trap. Reproducibility of measurement based on duplicate injections of samples was typically better than ±0.5 ‰.</p> <p>Water was filtered on Whatman glass fibre filters (GF/F grade, 0.7 µm porosity) for particulate organic carbon (POC) and Chl-<em>a</em> (47 mm diameter). Filters for POC were stored dry and filters for Chl-<em>a</em> were stored frozen at -20°C. Filters for POC analysis were decarbonated with HCl fumes for 4h and dried before encapsulation into silver cups; POC concentration was analysed on an EA-IRMS (Thermo FlashHT with DeltaV Advantage), with a reproducibility better than ±5%. Data were calibrated with certified (IAEA-600: caffeine) and in-house standards (leucine and muscle tissue of Pacific tuna) that were previously calibrated versus certified standards. The Chl-<em>a</em> samples were analysed by HPLC according to Descy et al. (2005), with a reproducibility of ±0.5% and a detection limit of 0.01 µg L<sup>-1</sup>.</p> <p>The water filtered through GF/F Whatman glass fibre filters was collected and further filtered through polyethersulfone syringe encapsulated filters (0.2 µm porosity) for nitrate (NO<sub>3</sub><sup>-</sup>), nitrite (NO<sub>2</sub><sup>-</sup>) and ammonium (NH<sub>4</sub><sup>+</sup>) and were stored frozen (-20°C) in 50 mL polypropylene vials. NO<sub>3</sub><sup>-</sup> and NO<sub>2</sub><sup>-</sup> were determined with the sulfanilamide colorimetric with the vanadium reduction method (APHA, 1998), and NH<sub>4</sub><sup>+</sup> with the dichloroisocyanurate-salicylate-nitroprussiate colorimetric method (SCA, 1981). Detection limits were 0.3, 0.01, and 0.15 µmol L<sup>-1</sup> for NH<sub>4</sub><sup>+</sup>, NO<sub>2</sub><sup>-</sup> and NO<sub>3</sub><sup>-</sup>, respectively. Precisions were ±0.02 µmol L<sup>-1</sup>, ±0.02 µmol L<sup>-1</sup>, and ±0.1 µmol L<sup>-1</sup> for NH<sub>4</sub><sup>+</sup>, NO<sub>2</sub><sup>-</sup> and NO<sub>3</sub><sup>-</sup>, respectively.</p> <p> </p> <p>References</p> <p> </p> <p>APHA, 1998. Standard methods for the examination of water and wastewater, American Public Health Association.</p> <p>Borges, A. V., Darchambeau, F., Teodoru, C. R., Marwick, T. R., Tamooh, F., Geeraert, N., Omengo, F. O., Guérin, F., Lambert, T., Morana, C., Okuku, E., and Bouillon, S.: Globally significant greenhouse gas emissions from African inland waters, Nature Geosci., 8, 637-642, doi:10.1038/NGEO2486, 2015.</p> <p>Descy, J.-P., Hardy, M.-A., Sténuite, S., Pirlot, S., Leporcq, B., Kimirei, I., Sekadende, B., Mwaitega, S. R., and Sinyenza, D., 2005. Phytoplankton pigments and community composition in Lake Tanganyika. Freshw. Biol., 50, 668-684.</p> <p>Frankignoulle, M., Borges, A., Biondo R., 2001. A new design of equilibrator to monitor carbon dioxide in highly dynamic and turbid environments. Water Res., 35, 1344-1347.</p> <p>Standing committee of Analysts: Ammonia in waters. Methods for the examination of waters and associated materials. 16 pp., 1981.</p> <p>Weiss, R.F., 1981. Determinations of carbon dioxide and methane by dual catalyst flame ionization chromatography and nitrous oxide by electron capture chromatography. J. Chromatogr. Sci., 19, 611-616.</p>
Redefining East African Rift System kinematics: Supplementary Model Files
<p>Supplementary kinematic model input and output files for the Geology publication Redefining East African Rift System kinematics. Model input files are for the open-source code TDEFNODE. </p>
Venus Rifting: dataset vtu files
<p>Dataset containing the input files and the vtu files of all the models tested for the study of rifting on Venus</p>
Elucidating the Magma Plumbing System of Ol Doinyo Lengai (Natron Rift, Tanzania) Using Satellite Geodesy and Numerical Modeling; Model input and output files
<p>These are the model input and output associated with the manuscript "Elucidating the Magma Plumbing System of Ol Doinyo Lengai (Natron Rift, Tanzania) Using Satellite Geodesy and Numerical Modeling" in consideration for publication in the Journal of Volcanology and Geothermal Research.</p>
Dataset to manuscript "The role of weathering on morphology and rates of escarpment retreat of the rift margin of Madagascar" by Wang et al. (2023) submitted to Journal of Geophysical Research-Earth Surface.
<p>The dataset includes the relevant raw chemical element content data and the chemical weathering condition analysis of river sediment samples of Madagascar. The dataset is a supplement to the manuscript "The role of weathering on morphology and rates of escarpment retreat of the rift margin of Madagascar", by Wang et al. (2023) submitted to the Journal of Geophysical Research-Earth Surface. Commercially sensitive data is hidden but is available by request directly to the corresponding author. The data should <strong>NOT</strong> be used commercially.</p> <p>A MATLAB code for the weathering indices calculation is open-access on GitHub (https://github.com/yanyanwangesd/chemical_weathering). Please contact the corresponding author for more info or technical support on using the code. </p>
Tryps-IN: A streamlined palaeoproteomics workflow enables ZooMS analysis of 10,000-year-old petrous bones from Jordan rift-valley
<p>Poor preservation of collagen in dry and/or arid environments has hindered the application of Zooarchaeology by mass spectrometry (ZooMS) analysis in many regions of the world, and as a result many zooarchaeological investigations have relied exclusively on the morphological assessment of fragmentary remains, due to the inadequate preservation of biomolecules. The climatic conditions of Southwest Asia include extreme temperature fluctuations unconducive to preservation of proteins and DNA. We performed zooarchaeological analysis of remains from the 10,000-year-old site of Shkārat Msaied in Jordan and sub-sampled twenty-eight petrous bones, the hardest bone in the mammalian skeleton, for species identification by ZooMS. Using an unconventional and simplified extraction protocol we call Tryps-IN, in which digestion was performed without removal of the demineralising EDTA, we taxonomically identified several fragments, outperforming the established ZooMS work-flow. A subset of identifications was subsequently confirmed using liquid chromatography coupled to tandem mass spectrometry (LC-MS/MS) protein sequencing. The new methodology presented here opens the possibility of further bioarchaeological investigation of other fragmentary faunal assemblages within this region of archaeological significance. </p>
Data for the paper "Two small volcanoes, one inside the other: geophysical and drilling investigation of Bažina maar in western Eger Rift"
<p>Data for the paper "Two small volcanoes, one inside the other: geophysical and drilling investigation of Bažina maar in western Eger Rift"</p> <p>Pavla Hrubcová, Tomáš Fischer, Vladislav Rapprich, Jan Valenta, Petr Tábořík, Jan Mrlina, Torsten Dahm, Tomáš Vylita, Roman Beránek, Radek Klanica, Veronika Turjaková</p> <p> </p> <p>This repository contains following data:</p> <p>1. Gravity data <br> • file: Gravity_Topo.txt (measured field data after topographic correction)<br> <br> 2. Magnetic data <br> • file: bazina_maar_magnetics.xlsx (measured field data corrected for variations)<br> • file: bazina_maar_magnetics_RTP.grd (magnetic field data reduced to pole, Golden <br> Software Surfer grid file)<br> <br> 3. Ground resistivity data using the multielectrode method (ERT data)<br> • folder: ERT_data – raw data for inversion in BERT format (https://gitlab.com/resistivity-net/bert) <br> - profiles<br> - 3d compilation<br> - ESRI ShapeFiles with coordinates<br> • folder: ERT_results – inverted results <br> - profiles<br> - 3d compilation (3d data cube)<br> The data are in VTK file format (The Visualization Toolkit)<br> Geographic coordinates used for the 3d data processing are in the S-JTSK (Krovak’s projection <br> – Cartesian coordinates used by the Czech Office for Surveying, Mapping and Cadastre)<br> <br> • file: Bazina_resistivity.xls (each sheet contains one file with data for the inversion) <br> The format is for the BERT software (https://gitlab.com/resistivity-net/bert) <br> all profiles, 3d compilation, with coordinates </p> <p>4. Lithology and logging data from the two boreholes S4 and S4b <br> • file: S4_data_EN.LAS (logging data for S4 borehole)<br> • file: S4b_data_EN.LAS (logging data for S4b borehole)<br> • file: Lithology_and_Logging_S4_S4b.pdf (lithology and logging data for S4 and S4b boreholes)<br> </p>
First identification of the Ediacaran Yukengou Formation in western Kuruktag, northeastern Tarim and its implications for the Neoproterozoic rift basin evolution
<p>This supporting information provides three supplemental tables containing the sandstone composition counting and zircon U-Pb dating results.</p>
Sand Dunes Earthquake Locations - hypoDD using Rio Grande Rift velocity model is preferred
<p>From the publication "Earthquake swarm near Great Sand Dunes, Colorado, investigated with temporary seismic network and machine learning seismic phase analysis." in the Mountain Geologist.</p> <p>Three catalogs were produced using different location algorithms. The catalog titled hypoDD_RGR is the preferred catalog.</p> <p>There were 717 events located by glass3 and SEISAN. 700 of those events were located by hypoDD. Column hypoDD_ID reconciles the events in all three catalogs.</p>
Soil CO2 Flux Data from the southern Malawi Rift
<p>Soil CO<sub>2</sub> data collected in transects across faults in the southern Malawi Rift in August 2018.</p> <p>Measurements of soil CO<sub>2</sub> flux were collected during a survey in August 2018 during the dry season in Malawi, in order to attempt to reduce the possibility of a high biogenic flux obscuring the output of deeper CO<sub>2</sub>. We collected measurements using the accumulation chamber method (Chiodini et al., 1998), where a soil collar is coupled to the ground surface, and the gas flux is sampled and analysed for CO<sub>2</sub> using a PP Systems EGM-4 Environmental Gas Analyser and a SRC-1 Soil Respiration Chamber.</p> <p>A high-resolution digital elevation model (DEM; 12.5 m TanDEM-X), was used to identify active fault scarps in southern Malawi (following Wedmore et al., 2020), which were the focus of our investigation. We collected flux measurements running from the footwall across the active faults and into the hanging wall of the scarps that we identified, with approximately 10-50 m spacing between individual sampling locations.</p> <p>Also published here is an ipython notebook to analyse the data.</p>
Data from: Continent-side uplifted mantle and geological imprints along a paleo rift in the western East Sea (Sea of Japan)
Open the record for dataset details and reuse information.
Household survey data: incentives influencing tree planting in the Albertine Rift Region of Uganda
Open the record for dataset details and reuse information.
Physical processes controlling the rifting of Larsen C Ice Shelf, Antarctica, prior to the calving of iceberg A68 in 2017
Open the record for dataset details and reuse information.
Water Erosion Risk in the Eastern Rift Valley: Application of RUSLE Modeling in the Kenyan Great Rift Valley Region
<p>RUSLE Model Parameters for Estimating Water Erosion Risk in the Eastern Rift Valley: Application of RUSLE Modeling in the Kenyan Great Rift Valley Region</p>
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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)
ABODe is a University of Edinburgh DataShare dataset for behavior classification in group-housed mice using home-cage video, identities, bounding boxes, ground-plate positions, and annotator labels.
DANDI Archive for NWB datasets
DANDI is a BRAIN Initiative archive for publishing and sharing neurophysiology data, including electrophysiology, optophysiology, and behavioral data packaged as NWB and related standards.
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.