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65 results for “Zircon”
U-Pb on zircon data from 'Evidence for large disturbances of the Ediacaran geomagnetic field from West Africa'
<p>This dataset provides the tabular U-Pb data on zircon presented in Robert et al. 2023 'Evidence for large disturbances of the Ediacaran geomagnetic field from West Africa', Precambrian Research, 394, 107095.</p> <p>The data are provided both as an xls formatted as in the original publication (in Table 1), and in a condensed .csv. Please the README file for a description of the columns of the csv.</p>
Data associated with the Tectonics manuscript "Building a Young Mountain Range: Insight into the Growth of the Greater Caucasus Mountains from Detrital Zircon (U-Th)/He Thermochronology and 10Be Erosion Rates"
<p>U-Pb and U-Th/He ages of zircons from a suite of detrital catchments reported in the manuscript "Building a Young Mountain Range: Insight into the Growth of the Greater Caucasus Mountains from Detrital Zircon (U-Th)/He Thermochronology and 10Be Erosion Rates" submitted to Tectonics. Repository includes sample locations and DEMs of each sampled catchment.</p>
Apatite and Zircon Helium Data from the Wallowa and Elkhorn Mountains
<p>Apatite and Zircon Helium thermochronometry data from the Wallowa and Bald Mountain Batholiths, Oregon, USA. Dataset accompanies the paper "Multiphase topographic and thermal histories of the Wallowa and Elkhorn Mountains, Blue Mountains Province, Oregon, USA" published in Tectonics.</p>
Logratio table of in-situ U-Th-4He/3He dated Fish Canyon zircon
<p>The U-Th-He logratio compositions of 61 Fish Canyon zircons dated by laser microprobe analysis using proton-induced 3He as a proxy for ablation pit volume.</p>
Timing and provenance of volcanic fluxes around the Permian-Triassic Boundary Mass Extinction in South China: U-Pb zircon geochronology, volcanic ash geochemistry and mercury isotopes
<p>The enclosed dataset contains all of the raw data supporting the results presented in the paper titled: <strong>"Timing and provenance of volcanic fluxes around the Permian-Triassic Boundary Mass Extinction in South China: U-Pb zircon geochronology, volcanic ash geochemistry and mercury isotopes". </strong></p> <p>The Excel data file contains four data sheets as follows: </p> <p>1. Table S1: This sheet contains the U-Pb output table from ETRedux. The data sheet contains all the U and Pb isotopic data generated for the current study.</p> <p>2. Table S2: This excel sheet contains the geochemical compositions of analyzed volcanic ash beds as well as LOI-normalized major element compositions of these ashes.</p> <p>3. Table S3: This excel sheet contains the other geochemical and isotope data for all analyzed samples. This includes Hg concentration and isotope compositions, TOC data, as well as major and trace element concentrations and ratios.</p> <p>4. a final table containing the analyzed Hg isotope compositions for the utilized standard reference materials - ETH Fluka, UM-Almaden, NIST 1632D and MESS-3.</p>
Global zircon U-Th-Pb geochronology database
<p>We present here a database of zircon U−Th−Pb geochronology, which samples the global continental crust and spans nearly the entire Earth's history. This database collects ~2,000,000 geochronology records from ~12,000 papers and theses over a period exceeding 50 years and is by far the largest geochronology database to our knowledge. The lithology of the host rock of the zircon samples includes sedimentary, igneous, and metamorphic rocks. The source references are from the following academic publishers: Elsevier, Cambridge, Geological Society of London, Oxford, Springer, Taylor & Francis, Wiley, and China National Knowledge Infrastructure (CNKI). Here, the zircon data compilation contains "Database" files and a "References" file. The "Database" files contain about two million zircon U−Th−Pb dating records, including four isotope ratios (206Pb/238U, 207Pb/235U, 207Pb/206Pb, and 208Pb/232Th) and errors, four corresponding ages and errors, as well as sample information, dating instrument, dating reference material, host rock lithology, sampling location, and reference number. The "References" file contains the information of the source references corresponding to zircon geochronology records, including reference number, author, year, and other publication information. For each record in the "Database" files, its reference can be found in the "References" file through the reference number. This collection not only provides us with a comprehensive platform to study zircon chronological data in deep time and space but also makes it possible to explore the underlying geodynamic mechanism and the evolution of the Earth system.</p><p> </p><p>This database is a supplement to the following article:</p><p>Wu, Y., Fang, X., & Ji, J. (2023). A global zircon U–Th–Pb geochronological database. Earth Syst. Sci. Data, 15(11), 5171-5181. https://doi.org/10.5194/essd-15-5171-2023</p>
Episodic evolution of a protracted convergent margin revealed by detrital zircon geochronology in the Greater Caucasus
<p class="MsoNormal">Convergent margins play a fundamental role in the construction and modification of Earth's lithosphere and are characterized by poorly understood episodic processes that occur during the progression from subduction to terminal collision. On the northern margin of the active Arabia-Eurasia collision zone, the Greater Caucasus Mountains provide an opportunity to study a protracted convergent margin that spanned most of the Phanerozoic and culminated in Cenozoic continental collision. However, the main episodes of lithosphere formation and deformation along this margin remain enigmatic. Here, we use detrital zircon U-Pb geochronology from Paleozoic and Mesozoic (meta)sedimentary rocks in the Greater Caucasus, along with select zircon U-Pb and Hf isotopic data from coeval igneous rocks, to link key magmatic and depositional episodes along the Caucasus convergent margin. Devonian to Early Carboniferous rocks were deposited prior to Late Carboniferous accretion of the Greater Caucasus crystalline core onto the Laurussian margin. Permian to Triassic rocks document a period of northward subduction and forearc deposition south of a continental margin volcanic arc in the Northern Caucasus and Scythian Platform. Jurassic rocks record the opening of the Caucasus Basin as a back-arc rift during southward migration of the arc front into the Lesser Caucasus. Cretaceous rocks have few Jurassic-Cretaceous zircons, indicating a period of relative magmatic quiescence and minimal exhumation within this basin. Late Cenozoic closure of the Caucasus Basin juxtaposed the Lesser Caucasus arc to the south against the crystalline core of the Greater Caucasus to the north and led to the formation of a hypothesized terminal suture. We expect this suture to be within ~20 kilometers of the southern range front of the Greater Caucasus because all analyzed rocks to the north exhibit a provenance affinity with the crystalline core of the Greater Caucasus.</p>
Episodic evolution of a protracted convergent margin revealed by detrital zircon geochronology in the Greater Caucasus
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Code and data used for reproducing calculations of lunar crustal thermal evolution and zircon resetting during a tidal heating event
Open the record for dataset details and reuse information.
Cape Marsh Rock Magnetics & U-Pb Zircon Data
<p>Raw rock magnetic and U-Pb zircon data for manuscript "­­New evidence of a Campanian age for the Cretaceous fossil-bearing strata of Cape Marsh, Robertson Island, Antarctica­­"</p>
Supplementary Table 1-9 of the manuscript: Magmatic Cl-H2O contents, fluid extraction and porphyry fertility: Evidence from zircon and its apatite inclusions
<p><strong><span>Table DR1</span></strong><span> Major element composition of biotite from the three intrusions in the ZOF</span></p> <p><strong><span>Table DR2</span></strong><span> Laser Raman spectra and trace element compositions of zircon grains from the Cretaceous intrusions in the ZOF</span></p> <p><strong><span>Table DR3</span></strong><span> Major element composition of plagioclase grains from the Cretaceous intrusions in the ZOF</span></p> <p><strong><span>Table DR4</span></strong><span> Sr isotopic composition of the plagioclase from the Cretaceous intrusions in the ZOF</span></p> <p><strong><span>Table DR5</span></strong><span> Zircon Lu-Hf isotopic composition of the Sifang granodiorite, Luoboling granodiorite porphyry and Zhongliao granodiorite</span></p> <p><strong><span>Table DR6 </span></strong><span>Zircon water contents and O isotopic compositions by SIMS of the Cretaceous intrusions in the ZOF</span></p> <p><strong><span>Table DR7 </span></strong><span>Major and volatile element composition of the zircon-host apatite from the Cretaceous intrusions in the ZOF </span></p> <p><strong><span>Table DR8</span></strong><span> The top 20 best fitting runs</span></p> <p><strong><span>Table DR9</span></strong><span> Summarization of the salinity calculations</span></p>
Zircon classification from cathodoluminescence images using deep learning
<p>The dataset contains a total of 4282 original and processed zircon CL images collected from published papers and unpublished personal collections. Igneous, metamorphic, and hydrothermal zircon were classified and labeled manually. The dataset was used for a deep learning classification task which was submitted to "Geoscience Frontiers", and was entitled as "Zircon classification from cathodoluminescence images using deep learning".</p>
Zircon dates long-lived plume dynamics in oceanic islands
<p><strong>Here we present a new data set from ten islands of the hot-spot related Galapagos Archipelago. That includes zircon U-Pb geochronology and δ18O - εHf(t) isotope geochemistry and whole rock geochemistry. The methodology includes different analytical technics like SHRIMP II, LA-MC-ICPMS, ICP, and XRD.</strong></p> <p><strong>This repository contains the following files:</strong></p> <p><strong>Table S1. </strong>LA-MC-ICPMS Lu-Hf isotope data of Galápagos zircons measured at Hong Kong University.</p> <p><strong>Table S2. </strong>LA-MC-ICPMS Lu-Hf isotope data of Galápagos zircons measured at Frankfurt University.</p> <p><strong>Table S3.</strong> Major and trace element concentrations for Galápagos samples.</p> <p><strong>Table S4. </strong>Oxygen isotope ratios for Galápagos zircons.</p> <p><strong>Table S5. </strong>Thermo-mechanical properties of the rock phase.</p> <p><strong>Table S6.</strong> List of the numerical experiments.</p> <p><strong>Table S7:</strong> List of the experiments used to calibrate the permeable boundary condition.</p> <p><strong>Table S8.</strong> (A) Hf Isotope Ratios in Galapagos Lavas (After (Blichert-Toft & White, 2001). (B) Oxygen isotopic ratios of plagioclase separates from Galapagos lavas and xenoliths (Geist et al., 1998). (C) Oxygen isotope compositions of olivine grains from subaerial lavas (Peterson et al., 2019). (D) Hf Isotope Compositions (±2s) of Submarine Ridges in the Panama Basin and of CLIP (Caribbean Large Igneous Province) rocks (Geldmacher et al., 2003).</p> <p>Movie S1</p> <p> </p> <p> </p> <p> </p> <p> </p> <p> </p> <p> </p> <p> </p>
Text-fig. 6. Cathodoluminescence (CL) images of selected zircons from sample 160/4. in Angiosperm Diversification In The Early Cretaceous Of Primorye, Far East Of Russia
Text-fig. 6. Cathodoluminescence (CL) images of selected zircons from sample 160/4.
Text-fig. 7. U-Pb concordia diagram for zircons from tuff sample 160/4. in Angiosperm Diversification In The Early Cretaceous Of Primorye, Far East Of Russia
Text-fig. 7. U-Pb concordia diagram for zircons from tuff sample 160/4.
Evidence of Jurassic extension in NW Argentina: Characterization of fault-related strata at the Salta Group base using sandstone provenance and zircon U–Pb geochronology
<p>Supporting information accompanying the publication "Evidence of Jurassic extension in NW Argentina: Characterization of fault-related strata at the Salta Group base using sandstone provenance and zircon U–Pb geochronology" published in Journal of South American Earth Sciences. The dataset contains information on analytical procedures of detrital zircon U-Pb analyses.</p>
Detrital zircon data for samples from western North Dakota
<p>This data table include all the detrital zircon data for samples from western North Dakota, that are associated with the Tectonics paper titled "Cenozoic sediment provenance in the northern Great Plains corresponds to four episodes of tectonic and magmatic events in the central North American Cordillera“ by Li and Fan. </p>
Disentangle the Sediment Mixing from Geochemical Proxies and Detrital Zircon Geochronology
<p>Supplementary Data of the Manuscript titled 'Disentangle the Sediment Mixing from Geochemical Proxies and Detrital Zircon Geochronology '</p>
Dating strike-slip ductile shear through combined zircon-, titanite- and apatite U–Pb geochronology along the southern Tan-Lu Fault zone, East China
<p>This is the dataset for <em>"Dating strike-slip ductile shear through combined zircon-, titanite- and apatite U–Pb geochronology along the southern Tan-Lu Fault zone, East China"</em>. Including the EMPA and geochronology data.</p>
Zircon 2D shape and geochemistry
<p>This data set accompanies the G-Cubed manuscript titled "<em>Does Zircon Shape Retain Petrogenetic Information?</em>". It presents individual zircon 2D shape measurements coupled with individual grain U and Th contents (where applicable) and sample whole-rock geochemistry.</p>
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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.