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65 results for “Zircon”
Zircon U-Pb ages of debris from the basal ice of the Byrd ice core, central West Antarctica
<p>This dataset comprises of 16 zircon U-Pb ages. Zircon grains were picked out of the 75-150 micron size fraction of debris melted from two intervals of basal ice from the Byrd ice core. The Byrd ice core was drilled at 80<i><strong>°</strong></i> 0.1'S, 119<i><strong>°</strong></i> 31.0'W at Byrd Station, West Antarctica, in January 1968.</p>
89Zr-TLX250 for PET/CT Imaging of ccRCC- ZIRCON Study
ClinicalTrials.gov study NCT03849118. IPD Sharing: NO. Countries: 8. Publications: 2.
Zircon 2D shape and geochemistry
Open the record for dataset details and reuse information.
Grain-size control on detrital zircon cycloprovenance in the late Paleozoic Paradox and Eagle basins, USA
<p>Detrital zircon U-Pb and grain size data for JGR: Solid Earth: "Grain size control on detrital zircon cycloprovenance in the late Paleozoic Paradox and Eagle basins, USA" by Ryan J. Leary, M. Elliot Smith, and Paul Umhoefer. </p>
LA-ICPMS zircon U-Pb data of Franciscan metagraywackes, NW California
<p>This dataset summarizes LA-ICPMS detrital zircon U–Pb ages (<em>N</em> = 2,010) from the Franciscan Complex, NW California, analyzed by T. Tsujimori. The data includes metagraywackes from Eastern Belt outliers, Central Belt mélange, Coastal Belt Yager terrane, Coastal Belt Coastal terrane, and Coastal Belt King Range/False Cape terranes. The same samples were analyzed and published in Dumitru et al. (2015) [doi:10.1080/00206814.2015.1008060].</p>
Trace and rare-earth element composition of 2480 Ma detrital zircons in Proterozoic metapsammites from northwestern Arizona
<p>Detrital zircon grains in the ~1740-1750 Ma Vishnu Schist and similar rock units in northwestern Arizona consist of up to 30% grains dated by U-Pb isotopic analysis at 2470-2490 Ma. These zircon grains are distributed over ~40,000 km<sup>2 </sup>and define an age peak at 2480.0 ± 27.3 Ma (2SE). These grains have yielded unusually consistent <sup>207</sup>Pb/<sup>206</sup>Pb dates, with generally smaller analytical uncertainty and greater concordance to ideal U-Pb evolution than grains of other ages. A weighted mean age of 2480 ± 0.9 Ma (2SE) for this zircon population reflects consistent analytical results and high analytical precision but not the accuracy of the age. The source of these zircons has not been identified. To better characterize the unidentified source, we analyzed 45 of these grains for trace and rare-earth elements by laser-ablation mass spectrometry and scanned 16 grains with an electron microprobe to identify mineral inclusions. Mass spectrometer determinations of Sc/Yb and Nb/Sc support derivation from an oceanic-island igneous source. Electron microprobe scans revealed quartz in 5 of 16 grains, indicating a felsic source. The low variability in <sup>207</sup>Pb/<sup>206</sup>Pb dates and a generally linear relationship between U and Th support zircon derivation from a single igneous unit or closely related set of units without xenocrystic zircons. A literature search for other zircon populations with similar age and U/Th ratios identified ~2480 Ma zircons in a Mesoproterozoic(?) metapsammite and conglomerate in southwestern Montana. This sandstone was deposited near the margin of the Wyoming craton and contains almost entirely 2400-3600 Ma zircons, unlike zircon grains in Vishnu Schist which include a large population of 1730-1900 Ma zircons. From this relationship, we infer that the 2480 Ma zircons in both areas were derived from a source in the Wyoming craton. We conclude that the 2480 Ma Vishnu zircons were derived from a felsic batholith that formed above and from hotspot magma related to the ~2450-2480 Ma Matachewan Large Igneous Province, that this batholith formed by mixing between a mantle-derived hotspot magma and assimilated Archean continental crust, and that the source rock was emplaced during initial rifting between the Wyoming craton and the Superior province.</p>
High water contents in zircons suggest water-fluxed crustal melting during cratonic destruction
<p>1. Three data sets for water content, oxygen isotope, Hf isotope, trace element of granitic zircons. <br> 2. One data set for zircon water content in different tectonic settings.<br> 3. Supporting informations</p>
Data of "Revisiting the Late Paleozoic–Mesozoic tectonic evolution of epicontinental eastern Central Asian Orogenic Belt on the basis of detrital zircon"
<p><strong>Ds01.</strong> Table S1. Zircon U–Pb isotopic and trace element data of mica-quartz schist (14JH12-1) from the Hulin Basin.</p> <p><strong>Ds02. </strong>Table S2. Zircon U–Pb isotopic and trace element data of fine sandstone (JHD53) from the Wandashan accretionary complex.</p> <p><strong>Ds03.</strong> Table S3. Zircon U–Pb isotopic and trace element data of sandy slate (JHD44) from the Wandashan accretionary complex.</p> <p><strong>Ds04.</strong> Table S4. Collected sedimentary rock samples and our samples in NE China, showing their original and renamed sample ID and dating data.</p>
FIGURE 4 in Fossil caddis cases from the lower Eocene Huachong Formation of the Sanshui Basin, Foshan City, Guangdong Province, South China with detrital zircon analyses
FIGURE 4. Relative probability plot of the detrital zircons from the Phanerozoic at the layer below the caddis cases.
FIGURE 1. Fossil locality. A, Locality map. B in Fossil caddis cases from the lower Eocene Huachong Formation of the Sanshui Basin, Foshan City, Guangdong Province, South China with detrital zircon analyses
FIGURE 1. Fossil locality. A, Locality map. B, The outcrop (red arrow point where the fossils collected), with hammer indicating the layer for zircon sampling.
FIGURE 5 in Fossil caddis cases from the lower Eocene Huachong Formation of the Sanshui Basin, Foshan City, Guangdong Province, South China with detrital zircon analyses
FIGURE 5. Weighted average ages of the four major peaks from the detrital zircons. A, 252.0 ± 1.7 Ma. B, 242.0 ± 1.8 Ma. C, 162.2 ± 1.3 Ma. D, 99.81 ± 0.39 Ma.
FIGURE 2 in Fossil caddis cases from the lower Eocene Huachong Formation of the Sanshui Basin, Foshan City, Guangdong Province, South China with detrital zircon analyses
FIGURE 2. Caddis case fossils from the Huachong Formation at the Sanshui Basin, South China. A, A small and complete caddis case (NIGP179890a). B, The counterpart of A (NIGP179890b). C, A nearly complete case (NIGP179891a). D, The counterpart of C (NIGP179891b). E, A case comprise of ostracods (NIGP179892).
FIGURE 3 in Fossil caddis cases from the lower Eocene Huachong Formation of the Sanshui Basin, Foshan City, Guangdong Province, South China with detrital zircon analyses
FIGURE 3. Cathodoluminescent (CL) images of selected representative zircons, showing their morphology and ages.
Zircon constraints on the eruptive sequence and magma evolution of rhyolites at South Sister volcano, Oregon
<p>This is the repository for data used for analysis in “Zircon constraints on the eruptive sequence and magma evolution of rhyolites at South Sister volcano, Oregon” submitted to Geochemistry, Geophysics, Geosystems. There are four datafiles. Dechert_TableS1.xlsx includes rock sample unit information and locations. Dechert_TableS2.xlsx includes the <sup>230</sup>Th-<sup>238</sup>U isotope ratios as collected with the Stanford-USGS SHRIMP-RG, the isochron model slope and ages, and the Boehnke model slope and ages (Boehnke et al., 2016). Dechert_TableS3.xlsx includes the trace element and rare earth element concentrations collected with the Stanford-USGS SHRIMP-RG. Dechert_TableS4.xlsx records whole rock data for a split of the zircon rock samples collected at Hamilton Analytical Lab and Washington State University.</p>
Thermogravimetric analysis of hydration of 10% Y substituted barium zirconate
<p>Shown is the change of mass of a sample of 10% yttrium substituted barium zirconate proton conductor powder during exposure at dry nitrogen gas (dehydration) and subsequent exposure of humidified, H2O-enriched nitrogen gas (hydration) at temperatures from ambient temperatrure to 900°C.</p> <p>Data recorded 22 April 2008 at Empa Switzerland.</p>
PhD thesis: Zircon - Tiny but Telling: A Petrochronological Study. Appendix C
<p>The PDF file and the Excel sheet contain the supplementary figures and tables for the 4th chapter of the Ph.D. thesis of Linus Bijan Streicher (2025) titled <em>Zircon – Tiny but Telling: A Petrochronological Study</em>.</p>
LA-ICP-MS U-Pb and Lu-Hf data for Bighorn Basin bentonite zircon
<p>This table contains the U-Pb composition, calculated ages, and Lu-Hf composition for 697 individual zircon analyses from a suite of bentonite deposits collected from the Bighorn Basin, Wyoming, and southwestern South Dakota. All data was acquired using LA-ICP-Ms at the Laserchron Center at the University of Arizona.</p>
Supplemental materials for "Modeling apparent Pb loss in zircon U-Pb geochronology"
<p>Supplemental tables, figures, and videos for the article "Modeling apparent Pb loss in zircon U-Pb geochronology", re-submitted to the journal <em>Geochronology</em> (gchron-2023-6) August 2023.</p>
An East Africa origin for Madagascar: evidence from zircon U-Pb geochronology and geochemistry of Neoarchean gneisses and granitoids from the Maevatanana greenstone belt in Madagascar
<p><strong>Table 1 </strong>Results of zircon U–Pb dating of sample G1 from the melanosome bands in the gneiss</p> <p><strong>Table 2 </strong>Results of zircon U–Pb dating of sample M33 from the Neoarchean granitoids</p> <p><strong>Table 3 </strong>Zircon Hf isotopic data for the melanosome bands in the gneiss</p> <p><strong>Table 4 </strong>Zircon Hf isotopic data for Neoarchean granitoids</p> <p><strong>Table 5 </strong>Major element (wt%), trace element (ppm), and REE (ppm) composition of the melanosome bands in the gneiss</p> <p><strong>Table 6 </strong>Major element (wt%), trace element (ppm), and REE (ppm) composition of the Neoarchean granitoids</p>
U-Pb, Lu-Hf, and O in zircon from igneous and sedimentary rocks from the Ellsworth Mountains, West Antarctica
<p>This dataset includes U-Pb, Lu-Hf, and O analyses of zircons from two igneous rocks: sample EHD0701A (79°57'47.43"S, 82°56'58.32"W) and sample EHD0305A (80°03'00.87"S, 82°59'07.91"W). EHD0701A is a foliated porphyritic hornblende micro-diorite, while EHD0305A is a basaltic andesite. Additionally, it contains Lu-Hf and O analyses of detrital zircon grains from ten meta-sedimentary samples: 13EG-01, 13EG-02, EHD2302A, EHD0801A, 13EG-05, EHD1705A, EA6, EAM1001B, 13EG-15, and 13EG-10. The coordinates for these samples and U-Pb data are published in Castillo et al. (2017). Zircon separation and analysis were conducted at the Australian National University in Canberra, Australia.</p> <p>Castillo, P., Fanning, C.M., Fernandez, R., Poblete, F., Hervé, F. 2017. Provenance and age constraints of Paleozoic siliciclastic rocks from the Ellsworth Mountains in West Antarctica, as determined by detrital zircon geochronology. GSA Bulletin 129, 1568-1584.</p>
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DANDI Archive for NWB datasets
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International Brain Laboratory public data
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OpenNeuro
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