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Journal articles on the topic 'U-Pb dating on zircons'

Author: Grafiati

Published: 6 July 2024

Last updated: 31 July 2025

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1

Huang, Yong-Shu, Qiu-Li Li, Yu Liu, Ping-Ping Liu, Sun-Lin Chung, and Xian-Hua Li. "238U–206Pb dating of U-series disequilibrium zircons by secondary ion mass spectrometry." Journal of Analytical Atomic Spectrometry 36, no. 5 (2021): 999–1006. http://dx.doi.org/10.1039/d0ja00510j.

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Theoretical and analytical methods for <sup>238</sup>U–<sup>206</sup>Pb dating of U-series disequilibrium zircons by secondary ion mass spectrometry are developed. U–Pb dates improve age precision 3 times better than U–Th dating for zircon >150 ka.

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2

Ito, Hisatoshi. "Simultaneous U–Pb and U–Th Dating Using LA-ICP-MS for Young (<0.4 Ma) Minerals: A Reappraisal of the Double Dating Approach." Minerals 14, no. 4 (2024): 436. http://dx.doi.org/10.3390/min14040436.

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Simultaneous U–Pb and U–Th dating using laser ablation-inductively coupled plasma-mass spectrometry (LA-ICP-MS) was performed on the ca. 0.1 Ma Toya tephra and the ca. 0.08 Ma SS14-28 U–Th zircon reference material. In U–Pb dating, both Th/U and Pa/U partitioning between magma and minerals were considered. In U–Th dating, both abundance sensitivity and molecular interferences on 230Th were reevaluated. As a result, the Toya tephra yielded an accurate weighted mean U–Pb age of 0.103 ± 0.029 Ma (2σ) using zircon and monazite. Conversely, the SS14-28 zircon yielded an inaccurate U–Pb age (0.25 ±

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3

Huijsmans, Jasper R., Maartje Hamers, Martyn R. Drury, and James K. W. Lee. "Recrystallisation and Trace-Element Mobility in Zircons: Implications for U-Pb Dating." Minerals 12, no. 12 (2022): 1489. http://dx.doi.org/10.3390/min12121489.

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Complex microstructures of zircon recrystallisation have been discovered in igneous and metamorphic zircons from the Jack Hills Metasedimentary Belt in Western Australia, and the granitic injection complex of Harris in north-west Scotland. Cathodoluminescence (CL), electron backscatter diffraction (EBSD) and wavelength dispersive spectroscopy (WDS) analysis reveal that recrystallisation in the studied zircons is often characterised by (1) translation, bending and fading of the oscillatory zoning; (2) structural recovery of the zircon; (3) an enrichment in Hf and depletion in Y in recrystallise

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4

Kohút, Milan, Pavel Uher, Marián Putiš, et al. "SHRIMP U-Th-Pb zircon dating of the granitoid massifs in the Malé Karpaty Mountains (Western Carpathians): evidence of Meso-Hercynian successive S- to I-type granitic magmatism." Geologica Carpathica 60, no. 5 (2009): 345–50. http://dx.doi.org/10.2478/v10096-009-0026-z.

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SHRIMP U-Th-Pb zircon dating of the granitoid massifs in the Malé Karpaty Mountains (Western Carpathians): evidence of Meso-Hercynian successive S- to I-type granitic magmatismRepresentative granitic rock samples from the Malé Karpaty Mountains of the Western Carpathians (Slovakia) were dated by the SHRIMP U-Th-Pb isotope method on zircons. Oscillatory zoned zircons revealed concordant Mississippian magmatic ages: 355±5 Ma in Bratislava granodiorite, and 347±4 Ma in Modra tonalite. The results document nearly synchronous, successive Meso-Hercynian plutonic events from S-type to I-type granites

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5

Grakova, O., Natal'ya Nikulova, and Valentin Khubanov. "U/Pb age and sources of detrital zircon from Upper Riphaean sandstones of the Nemskaya Upland (South Timan)." Proceedings of the Komi Science Centre of the Ural Division of the Russian Academy of Sciences, no. 3 (July 12, 2024): 76–86. http://dx.doi.org/10.19110/1994-5655-2024-3-76-86.

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In the South Timan, outcrops of the Riphean basement are exposed in the cores of the Dzhezhimparma, Ochparma and Vadyavozh anticlinal structures. The results of U-Pb isotope dating of detrital zircon grains from terrigenous sediments of the middle formation of the Dzhezhim Formation, located in the Vadyavozh quarry, are presented. The rocks were formed no earlier than at the boundary between the Lower and Upper Proterozoic. The age of zircon grains ranges from 3170±43 to 1480±49 Ma. In South Timan, the source of clastic material for the metasandstones of the Dzhezhim Formation is assumed to be

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6

Schiøtte, L., W. Compston, and D. Bridgwater. "Ion probe U–Th–Pb zircon dating of polymetamorphic orthogneisses from northern Labrador, Canada." Canadian Journal of Earth Sciences 26, no. 8 (1989): 1533–56. http://dx.doi.org/10.1139/e89-131.

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Rounded zircons included within igneous zircons from the Uivak I gneisses, northern Labrador, have ages of up to 3863 ± 12 Ma (2σ), showing the (former) existence of rocks that predate the Uivak gneisses by more than 100 Ma. The igneous zircons themselves have experienced varying amounts of early Pb loss, but age estimates based on maximum 207Pb/206Pb from three separate gneiss samples agree to within error at 3732 ± 6 Ma (2σ), which is taken as the age of emplacement of the igneous precursor to the dominant component of the Uivak gneisses. A new generation of zircons was formed during migmati

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7

Doughty, P. Ted, and K. R. Chamberlain. "Protolith age and timing of Precambrian magmatic and metamorphic events in the Priest River complex, northern Rockies." Canadian Journal of Earth Sciences 45, no. 1 (2008): 99–116. http://dx.doi.org/10.1139/e07-067.

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U–Pb dating of detrital zircons, magmatic zircons, and metamorphic zircon overgrowths and titanites from the Priest River complex, USA, reveal the ages of high-grade metasedimentary rocks, intrusive ages of associated igneous rocks, and the timing of Precambrian metamorphic events. Sensitive high-mass resolution ion microprobe (SHRIMP) U–Pb dates of detrital zircons from the Hauser Lake gneiss and Gold Cup Quartzite are predominately Paleoproterozoic with some Archean grains. The Hauser Lake gneiss contains detrital zircons with nearly concordant ages as young as 1511 Ma. Isotope dilution – th

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8

Smirnova, Yu N., A. V. Kurilenko, V. B. Khubanov, and С. И. Дриль. "Composition and Age of Sources of the Lower–Middle Cambrian (?) Terrigenous Rocks from The Ernichny Formation in the Argun Massif, Eastern Part of the Central Asian Fold Belt." Стратиграфия 31, no. 5 (2023): 98–115. http://dx.doi.org/10.31857/s0869592x23050071.

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The paper presents the results of the mineralogical and geochemical studies of sandstones and siltstones of the Ernichny formation of the Argun series in the Argun continental massif, and the results of U–Pb (LA‑ICP-MS) dating for the detrital zircons from these rocks. It is established that the youngest detrital zircons from sandstone of the Ernichny Formation have age of 549–570 Ma. A maximum on the relative probability curve of zircon age corresponds to 566 Ma. These data determine the lower age limit of their accumulation on the border of the Ediacaran and Paleozoic age. According to the r

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9

Greenough, John D., Tom E. Krogh, Sandra L. Kamo, J. Victor Owen, and Alan Ruffman. "Precise U-Pb dating of Meguma basement xenoliths: new evidence for Avalonian underthrusting." Canadian Journal of Earth Sciences 36, no. 1 (1999): 15–22. http://dx.doi.org/10.1139/e98-079.

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U-Pb zircon and monazite dates for granulite-facies basement xenoliths from the Popes Harbour dyke on the eastern shore of Nova Scotia provide strong evidence that the Meguma terrane overlies Avalonian basement. Slightly discordant (1.6%), "facetted" zircons from a mafic granulite indicate a minimum crystallization age of ~629 Ma, with near-concordant (0.7%) rounded zircons suggesting a maximum age for the last metamorphic event affecting the zircons at ~575 Ma. Two near-concordant (-0.9 to 0.4%) monazite fractions from a pelitic granulite indicate a major metamorphic disturbance at 378 ± 1 Ma

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10

Xie, Lie-Wen, Jin-Hui Yang, Qing-Zhu Yin, Yue-Heng Yang, Jing-Bo Liu, and Chao Huang. "High spatial resolution in situ U–Pb dating using laser ablation multiple ion counting inductively coupled plasma mass spectrometry (LA-MIC-ICP-MS)." Journal of Analytical Atomic Spectrometry 32, no. 5 (2017): 975–86. http://dx.doi.org/10.1039/c6ja00387g.

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A new LA-MIC-ICP-MS analytical technique has been developed for the rapid measurement of <sup>206</sup>Pb/<sup>238</sup>U zircon age (<1%, 2s) at a high spatial resolution. We show that this technique can be routinely employed to date U–Pb in small and/or complex zircons, providing a powerful tool for geochronology.

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11

Zhang, Zhenkai, Tengfei Zhou, Dongtao Li, et al. "Geochemistry, Detrital Zircon U-Pb Geochronology, and Lu-Hf Isotopes of the Metasedimentary Rocks (Xinghongpu Formation, Late Devonian) in the Central South Qinling Orogenic Belt: Implications for Provenance and Tectonics." Minerals 13, no. 6 (2023): 768. http://dx.doi.org/10.3390/min13060768.

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The Xinghongpu Formation is very important for understanding the Devonian tectonic evolution of the South Qinling orogenic belt. Geochemical, detrital zircon U-Pb-Hf isotopic studies were carried out on the Late Devonian metasedimentary rocks of the Xinghongpu Formation to constrain the depositional age, the provenance, and the tectonic setting. The detrital zircon U-Pb dating results revealed that the depositional age of the Xinghongpu Formation of the Late Devonian was not earlier than 363.2 Ma. The whole-rock geochemistry suggested that (1) this suite of metasedimentary rocks was mainly der

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12

Schiøtte, L., W. Compston, and D. Bridgwater. "U–Th–Pb ages of single zircons in Archaean supracrustals from Nain Province, Labrador, Canada." Canadian Journal of Earth Sciences 26, no. 12 (1989): 2636–44. http://dx.doi.org/10.1139/e89-224.

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Ion-probe U–Pb dating of igneous zircons from an acid metavolcanite belonging to the Nulliak supracrustal association of the Saglek area, northern Labrador, suggests an original age of 3776 ± 8 Ma (2σ), interpreted as the deposition age of the volcanite. In accordance with the field model, this is slightly but significantly older than the previously obtained ion-probe U–Pb age of igneous zircons from the main phase of the Uivak gneisses, which carries inclusions of the supracrustal association. A secondary event of zircon growth recorded in the metavolcanite has a maximum age of 3065 ± 8 Ma (2

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13

Dusel-Bacon, Cynthia, and Ian S. Williams. "Evidence for prolonged mid-Paleozoic plutonism and ages of crustal sources in east-central Alaska from SHRIMP U–Pb dating of syn-magmatic, inherited, and detrital zircon." Canadian Journal of Earth Sciences 46, no. 1 (2009): 21–39. http://dx.doi.org/10.1139/e09-005.

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Sensitive high-resolution ion microprobe (SHRIMP) U–Pb analyses of igneous zircons from the Lake George assemblage in the eastern Yukon–Tanana Upland (Tanacross quadrangle) indicate both Late Devonian (∼370 Ma) and Early Mississippian (∼350 Ma) magmatic pulses. The zircons occur in four textural variants of granitic orthogneiss from a large area of muscovite–biotite augen gneiss. Granitic orthogneiss from the nearby Fiftymile batholith, which straddles the Alaska–Yukon border, yielded a similar range in zircon U–Pb ages, suggesting that both the Fiftymile batholith and the Tanacross orthogneis

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14

Krasnobaev, A. A., P. M. Valizer, E. V. Medvedeva, A. B. Nemov, and A. L. Perchuk. "U-Pb age and metamorphism of rocks of Voshnevogorsky sequence (South Ural)." Moscow University Bulletin. Series 4. Geology, no. 2 (April 28, 2020): 51–62. http://dx.doi.org/10.33623/0579-9406-2020-2-51-62.

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In the article present results of U-Pb — dating of zircons and petrologic-geochemical study of garnet-biotite plagiogneises and quartz-plagioclase-amphibole granofels host rocks samples from Vishnevogorsky sequence of the oldest rocks of the southern Urals Eastern domain are presented. U-Pb-dating of zircons were obtained by ion microprobe (SHRIMP II). The maximum age of the substrate plagiogneises Vishnevogorsky sequence not younger than 2700 Ma, and granulitic metamorphism plagiogneises falls on the Proterozoic age range 1740–2220 Ma. The dates obtained for plagiogneises and granofels Vishne

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15

Li, Liming, Fanyan Yang, Mingtao Li, Zhirong Liang, Xuedong Ma, and Jingxiong Tian. "U–Pb zircon dating of the Paleoproterozoic khondalite series in the northeastern Helanshan region and its geological significance." Open Geosciences 14, no. 1 (2022): 544–67. http://dx.doi.org/10.1515/geo-2022-0380.

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Abstract Petrography, zircon cathodoluminescence, and laser ablation-inductively coupled plasma mass spectrometry (LA-ICP-MS) U–Pb zircon dating were performed on the Paleoproterozoic khondalite series and the intrusive altered diabase dykes developed in the northeastern Helanshan region were analyzed. The results showed that most of the zircons in the khondalite series were detrital zircons with oscillatory zoning and a high Th/U ratio, with few metamorphic zircons having a low Th/U ratio. The 207Pb/206Pb age of the detrital zircons ranged from 3131–1980 Ma, which constrained the protolith ag

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16

Takehara, Lucy, Farid Chemale Júnior, Léo A. Hartmann, Ivo A. Dussin, and Koji Kawashita. "U-Pb dating by zircon dissolution method using chemical abrasion." Anais da Academia Brasileira de Ciências 84, no. 2 (2012): 399–405. http://dx.doi.org/10.1590/s0001-37652012000200011.

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Chemical abrasion was carried out on zircons grains of the Temora II standard for U-Pb dating prior to analyses using in situ Laser Ablation-MultiCollector Ion Coupled Plasma Mass Spectrometer (LA-ICPMS) followed by the Isotope Dissolution Thermal Ionization Mass Spectrometer (ID-TIMS) method. The proposed methodology was herein applied in order to reduce primarily the effects of secondary Pb loss, the presence of common lead and/or silicate impurities. Nine Temora II zircon grains were analyzed by the laser ablation method yielding an age of 418.3±4.3 Ma. Zircon grains of a same population we

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17

Shi, Yu, Xi Jun Liu, and Zuo Hai Feng. "Formation Age of the Qinling Complex and the early Paleozoic Tectonic Event." Advanced Materials Research 734-737 (August 2013): 60–70. http://dx.doi.org/10.4028/www.scientific.net/amr.734-737.60.

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The Qinling orogenic belt (QOB) located between the North China Craton (NCC) and the South China Craton (SCC) is composed of the Northern Qinling Belt (NQB) and the Southern Qinling Belt (SQB). This study presents new geochemical data, zircon U-Pb ages and Hf isotopes from two rocks from the Qinling complex in the NQB. LA-ICP-MS zircon U-Pb dating results suggest that the Qinling complex was formed in early Neoproterozoic and experienced the early Paleozoic metamorphism. HighεHf(t) values of 9.0-12.0 for the early Paleozoic zircons indicated that there is mantle-derived magma intruding into th

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18

Zaccaria, Daria, Noemi Vicentini, Maria Grazia Perna, et al. "Lamprophyre as the Source of Zircon in the Veneto Region, Italy." Minerals 11, no. 10 (2021): 1081. http://dx.doi.org/10.3390/min11101081.

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Discrete zircons, up to 9 mm in length, occur in alluvial deposits from the Veneto area. They are likely derived from the disaggregation of lamprophyric rocks belonging to a regional, pervasive dyke-swarm. Zircon and REE phases occur in both alkaline lamprophyres and connate calcite-bearing felsic lithics and their debris in lamprophyre breccia. We present 36 new complete U–Pb and trace element analyses of zircons and associated inclusions. We used a statistical approach on a larger dataset using new and literature data to evaluate the confidence figure to give an estimation of age of zircons.

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19

Liu, Chao, Xiangdong Chang, Beilei Sun, and Fangui Zeng. "New Insight into the Depositional Age of No. 6 Coal in Heidaigou Mine, Late Paleozoic Jungar Coalfield, Inner Mongolia, China." Sustainability 14, no. 10 (2022): 6297. http://dx.doi.org/10.3390/su14106297.

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Coal deposits can provide novel stratigraphic markers for reconstructing the evolution history of a sedimentary basin and correlating sedimentary successions. Age dating was conducted on zircons harvested from the No. 6 coal seam within the Heidaigou Mine, Inner Mongolia. Two-kilogram samples were taken, and the recovered zircons were analyzed for U–Pb isotopic and rare earth elements (REE). The REE results of the zircon grains showed that all the zircon grains were enriched in heavy rare earth elements (HREE) but depleted in light rare earth elements (LREE). In addition, zircons from the No.

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20

Kanygina, N. A., A. A. Tretyakov, K. E. Degtyarev, et al. "First results of dating detrital zircons from the late precambrian quartzite-schist sequences of Chu block (Southern Kazakhstan)." Доклады Академии наук 489, no. 1 (2019): 57–61. http://dx.doi.org/10.31857/s0869-5652489157-61.

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U-Pb geochronological studies of detrital zircons from quartzite-schist sequences of the Akbastau Formations of the Chu block (northwest of the Chu-Kendyktas terrane, Southern Kazakhstan) have been provided. The concordant ages of detrital zircons are predominantly within the intervals of 1672-2115 Ma with peaks at 1697, 1780, 1857 and 2066 Ma. Individual zircon grains display ages of 2291-2332 Ma with peaks at 2303 and 2322 Ma. Neoarchean ages 2608-2747 with peak at 2681 Ma characterize another significant zircon population. The lower limit of deposition for the Akbastau Formations of the Chu

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21

Mortensen, J. K., J. R. Montgomery, and J. Fillipone. "U–Pb zircon, monazite, and sphene ages for granitic orthogneiss of the Barkerville terrane, east-central British Columbia." Canadian Journal of Earth Sciences 24, no. 6 (1987): 1261–66. http://dx.doi.org/10.1139/e87-120.

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Granitic orthogneiss forms an important component of the Barkerville terrane of southeastern British Columbia. Rb–Sr whole-rock ages for the orthogneisses are ambiguous and range from Late Proterozoic to mid-Paleozoic, with large associated errors. U–Pb dating of zircon, monazite, and sphene has been employed in an attempt to establish precise crystallization ages for two of the orthogneiss bodies. U–Pb systematics for zircons from both bodies show the combined effects of inheritance of zircon cores and postcrystallization Pb loss. This complexity precludes a precise estimate of the age of emp

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22

WANG, JIALIN, CHAODONG WU, ZHUANG LI, et al. "The tectonic evolution of the Bogda region from Late Carboniferous to Triassic time: evidence from detrital zircon U–Pb geochronology and sandstone petrography." Geological Magazine 155, no. 5 (2017): 1063–88. http://dx.doi.org/10.1017/s0016756816001217.

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AbstractField-based mapping, sandstone petrology, palaeocurrent measurements and zircon cathodoluminescence images, as well as detrital zircon U–Pb geochronology were integrated to investigate the provenance of the Upper Carboniferous – Upper Triassic sedimentary rocks from the northern Bogda Mountains, and further to constrain their tectonic evolution. Variations in sandstone composition suggest that the Upper Carboniferous – Lower Triassic sediments displayed less sedimentary recycling than the Middle–Upper Triassic sediments. U–Pb isotopic dating using the LA-ICP-MS method on zircons from 1

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23

Prytchin, M. E., E. I. Soroka, and V. N. Puchkov. "Novel U-Pb isotopic zircon data on the rhyolite of the Saf’yanovskoe Cu-Zn deposit (Middle Urals)." LITHOSPHERE (Russia) 21, no. 6 (2021): 884–93. http://dx.doi.org/10.24930/1681-9004-2021-21-6-884-893.

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Research subject. Zircons from the Saf’yanovskoe Cu-Zn deposit rhyolite (Middle Urals). For the first time, zircon U-Pb dating for the rhyolite of the ore-bearing volcanic-sedimentary rocks of the Saf’yanovskoe deposit was performed. The volcanites are characterized by an andesite-rhyodacite composition and are localized at the southern edge of the Rezhevskaya structural-formation zone (SFZ) of the Eastern Ural megazone. A number of publications assign these rocks either to the basalt-rhyolite formation of the Middle Devonian, or to the basalt-andesite-dacite-rhyolite formation of the Lower-Mi

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24

Thompson, Jay M., Sebastien Meffre, and Leonid Danyushevsky. "Impact of air, laser pulse width and fluence on U–Pb dating of zircons by LA-ICPMS." Journal of Analytical Atomic Spectrometry 33, no. 2 (2018): 221–30. http://dx.doi.org/10.1039/c7ja00357a.

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Tevelev, A. V., A. A. Borisenko, I. D. Sobolev, et al. "The areas of manifestation of the Intravisean orogeny in the Eastern Zones of the Southern Urals (According to the detrital zircons U-Pb dating data from the Solnechnaya Formation of the Upper Visean)." Moscow University Bulletin. Series 4. Geology, no. 5 (December 17, 2022): 47–56. http://dx.doi.org/10.33623/0579-9406-2022-5-47-56.

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The aim of this work is to determine the provenance for the Upper Visean Solnechnay formation (The Southern Urals) using the U-Pb dating of detrital zircons. 138 zircon grains with discordance range of ± 10% were selected for the analysis. The vast majority of the zircons yielded the Ordovician and Cambrian ages. The main peak corresponds to the beginning of the Ordovician period (circa 480 Ma), and the secondary peaks correspond to the beginning of the Late Ordovician, the middle Cambrian, and the early Cambrian. The clastic material was derived from the East Ural megazone exclusively.

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Krasnobaev, A. A., P. M. Valizer, and A. L. Perchuk. "ORDOVICIAN AGE OF DUNITE-WEHRLITE-CLINOPYROXENITE BENDED COMPLEX OF NURALI MASSIF (SOUTHERN URALS, RUSSIA): SHRIMP U-PB ZIRCON DATING." Moscow University Bulletin. Series 4. Geology, no. 1 (February 28, 2018): 60–70. http://dx.doi.org/10.33623/0579-9406-2018-1-60-70.

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We present the data of geochemistry and geochronology of zircons from wehrlites and clinopyroxenites from dunite-wehrlite-clinopyroxenite bended complex of the base of crustal section of ophiolite Nurali massif. The U-Pb age of the bended complex is 450±4 Ma which is different from the previous data. Zircons from the studied rocks have complimentary REE patterns and similar U-Pb ages to lherzolites and dunites from mantle section of the Nurali massif.

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Reiners, P. W. "(U-Th)/(He-Pb) double dating of detrital zircons." American Journal of Science 305, no. 4 (2005): 259–311. http://dx.doi.org/10.2475/ajs.305.4.259.

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Young, David N., and Lance P. Black. "U-Pb zircon dating of Proterozoic igneous charnockites from the Mawson Coast, East Antarctica." Antarctic Science 3, no. 2 (1991): 205–16. http://dx.doi.org/10.1017/s095410209100024x.

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We report ion-microprobe U-Pb zircon ages from charnockites of a large Proterozoic composite batholith, Mawson Coast, Australian Antarctic Territory. The charnockites crystallized from orogenic magmas of intermediate composition (mainly 54–68% SiO2) intruded into a granulite-facies metasedimentary gneiss sequence between the second and third recognized deformations. A sample of low-Ti charnockite provides an age of 954 ± 12 Ma and a high-Ti charnockite is dated at 985 ± 29 Ma (all ages quoted at 95% confidence). The age difference is not significant at the 95% confidence level. Both these ages

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29

Shumlyanskyy, L. V., M. Hofmann, B. V. Borodynya, and G. V. Artemenko. "THE LOCAL SOURCES OF DETRITAL MATERIAL IN MIDDLE DEVONIAN QUARTZITES OF THE DONETS BASIN: RESULTS OF U-Pb LA-ICP-MS ZIRCON DATING." Mineralogical Journal 43, no. 3 (2021): 85–90. http://dx.doi.org/10.15407/mineraljournal.43.03.085.

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Results of U-Pb dating of zircons from the Middle Devonian sandstones of the Mykolaivka Suite, taken from the junction zone between the Azov Domain of the Ukrainian Shield and Donets basin, are reported. The rocks are taken from a drill core and they occur beneath a 210 m sequence of mafic and ultramafic volcanic rocks that belong to the Antonivka (D2-3) and Mykolaivka (D2) suites. In total, 28 U-Pb isotope analyses were performed. The predominant population (18 grains) of zircons yielded a concordant age of 2075±9 Ma (MSWD = 0.64). The second largest population consists of zircon crystals wit

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Jiang, Ziwen, Jinglan Luo, Xinshe Liu, et al. "Provenance and Implication of Carboniferous–Permian Detrital Zircons from the Upper Paleozoic, Southern Ordos Basin, China: Evidence from U-Pb Geochronology and Hf Isotopes." Minerals 10, no. 3 (2020): 265. http://dx.doi.org/10.3390/min10030265.

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Carboniferous–Permian detrital zircons are recognized in the Upper Paleozoic of the whole Ordos Basin. Previous studies revealed that these Carboniferous–Permian zircons occurred in the Northern Ordos Basin mainly originated from the Yinshan Block. What has not been well documented until now is where this period’s zircons in the Southern Ordos Basin came from, and very little discussion about their provenance. To identify the provenance of the detrital zircons dating from ~350 to 260 Ma, five sandstone samples from the Shan 1 Member of Shanxi Formation and eight sandstone samples from the He 8

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Akinin, V. V., L. B. Golovneva, and S. V. Shchepetov. "Isotopic age of flora-bearing beds from the Amka Formation stratotype, Okhotsk-Chukotka volcanic belt." Palaeobotany 7 (2016): 38–46. http://dx.doi.org/10.31111/palaeobotany/2016.7.38.

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U-Pb SHRIMP-dating of zircons from flora-bearing volcanic rocks of the Amka Formation stratotype (Ul'ya depression, Okhotsk-Chukotka volcanic belt) yield weighted mean 206Pb/238U age of 85.5 ±2 Ma (Santonian to Coniacian stage). This isotope dating is consistent with inferred Coniacian age of Ul’ya flora from the Amka Formation.

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Korovin, D., and V. Smirnov. "The first U-Pb (SHRIMP-II) dating of the reftinsky massif granitoids (eastern zone of the Middle Urals)." Proceedings of the Komi Science Centre of the Ural Division of the Russian Academy of Sciences, no. 2 (July 18, 2023): 5–14. http://dx.doi.org/10.19110/1994-5655-2023-2-5-14.

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The article presents the results of U-Pb dating (SHRIMP-II, the Center for Isotope Research of the A.P. Karpinsky Russian Geological Research Institute) of zircon grains from leucogranite dating back to the final formation stage of the Reftinsky gabbro-granitoid massif, which is one of the largest magmatism areas of this type in the Urals. The intrusive formations of the dated magmatism episode form a sub-meridionally elongated chain of small (up to 5 km in diameter) bodies, which intrude the Silurian plagioclase granitoids building up the main part of the massif. These bodies are dominated by

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Marchev, Peter, Raya Raycheva, and Irena Peytcheva. "U-Pb monazite and zircon ages of a granite xenolith and its host alkaline basalt from the Byala Reka Dome." Geologica Balcanica 53, no. 2 (2024): 29–38. http://dx.doi.org/10.52321/geolbalc.53.2.29.

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The Oligocene Krumovgrad alkaline basalts and lamprophyre (KABL) intruded into the Kesebir-Kardamos and Byala Reka metamorphic domes carry various mantle and crustal xenoliths. This study presents the results from petrological and geochronological investigations of one granitic xenolith entrained in an alkaline (camptonite) dyke intruded into the Byala Reka dome, close to the village of Gorni Yurutsi (SE Bulgaria). The studied xenolith is granite formed at an estimated depth of 6–9 km. During the transport to the surface, it records some host-melt interaction with the penetrating melt, reflect

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Guzev, V. E., A. V. Terekhov, S. G. Skublov, V. I. Leontiev, and A. V. Molchanov. "THE FIRST DATA ON THE U-PB AGE AND COMPOSITION OF ZIRCONS FROM ORE-BEARING SYENITES OF GORA RUDNAYA (SOUTH YAKUTIA)." Tikhookeanskaya Geologiya 40, no. 6 (2021): 85–99. http://dx.doi.org/10.30911/0207-4028-2021-40-6-85-99.

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The isotope-geochemical study (SHRIMP-II, SIMS) of zircons from syenites of Gora Rudnaya (South Yakutia) was carried out. Gora Rudnaya is a syenite massif in the form of a laccolith. It is located within the Central Aldan ore district and includes the recently discovered Morozkinskoye gold deposit. Vein and vein-disseminated gold mineralization occurs in low-temperature acid metasomatites – beresites (Qz-Ser-Ank-Py). Mineralization is restricted to steeply dipping submeridional crush zones within the intrusion. According to the zircon dating data, the age of ore-bearing syenites is about 130 M

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Vetrova, N. I., E. V. Vetrov та E. F. Letnikova. "СHEMOSTRATIGRAPHY OF THE CARBONATE DEPOSITS OF THE KINTEREP FORMATION IN NORTHWESTERN SALAIR: FIRST DATA". Geology and mineral resources of Siberia, № 2 (червень 2022): 10–23. http://dx.doi.org/10.20403/2078-0575-2022-2-10-23.

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The results of geochemical, isotope-geochemical (Sr, C, O) surveys of the Kinterep Formation carbonate deposits of Northwestern Salair and U-Pb dating (LA-ICP-MS) of zircons were given. Carbonate rocks represented by pure limestones are characterized by normal values of δ18OSMOW from 19.8 to 23.8 ‰ and δ13 CPDB from –0.7 to +0.9, the isotopic composition of Sr (87Sr/86Sr ratio) varies in a narrow range from 0.708486 to 0.708582.Using Sr and C isotope chemostratigraphy and U-Pb dating of zircons, age limits (525-510 Ma) were determined for the formation time of carbonate deposits of the Kintere

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Pelech, Ondrej, Anna Vozárová, Pavel Uher, et al. "Late Permian volcanic dykes in the crystalline basement of the Považský Inovec Mts. (Western Carpathians): U–Th–Pb zircon SHRIMP and monazite chemical dating." Geologica Carpathica 68, no. 6 (2017): 530–42. https://doi.org/10.1515/geoca-2017-0035.

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This paper presents geochronological data for the volcanic dykes located in the northern Považský Inovec Mts. The dykes are up to 5 m thick and tens to hundreds of metres long. They comprise variously inclined and oriented lenses, composed of strongly altered grey-green alkali basalts. Their age was variously interpreted and discussed in the past. Dykes were emplaced into the Tatricum metamorphic rocks, mostly consisting of mica schists and gneisses of the Variscan (early Carboniferous) age. Two different methods, zircon SHRIMP and monazite chemical dating, were applied to determine the

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KRISTOFFERSEN, MAGNUS, TOM ANDERSEN, and ARILD ANDRESEN. "U–Pb age and Lu–Hf signatures of detrital zircon from Palaeozoic sandstones in the Oslo Rift, Norway." Geological Magazine 151, no. 5 (2013): 816–29. http://dx.doi.org/10.1017/s0016756813000885.

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AbstractU–Pb and Lu–Hf isotope analyses of detrital zircon from the latest Ordovician (Hirnantian) Langøyene Formation, the Late Silurian Ringerike Group and the Late Carboniferous Asker Group in the Oslo Rift were obtained by laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS). Overall the U–Pb dating yielded ages within the range 2861–313 Ma. The U–Pb age and Lu–Hf isotopic signatures correspond to virtually all known events of crustal evolution in Fennoscandia, as well as synorogenic intrusions from the Norwegian Caledonides. Such temporally and geographically diverse so

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Leeman, William P., Jeffrey D. Vervoort, and S. Andrew DuFrane. "U-Pb LA-ICP-MS Zircon Dating of Crustal Xenoliths: Evidence of the Archean Lithosphere Beneath the Snake River Plain." Minerals 14, no. 6 (2024): 578. http://dx.doi.org/10.3390/min14060578.

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New U-Pb zircon ages are reported for granulite facies crustal xenoliths brought to the surface by mafic lavas in the Snake River Plain. All samples yield Meso-to-Neoarchean ages (2.4–3.6 Ga) that significantly expand the known extent of the Archean Wyoming Craton at least as far west as the west-central Snake River Plain. Most zircon populations indicate multiple growth episodes with complexity increasing eastward, but they bear no record of major Phanerozoic magmatic episodes in the region. To extrapolate this work further west to the inferred craton boundary, zircons from southwestern Idaho

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Ershova, Victoria, Andrei Prokopiev, and Daniel Stockli. "Provenance of Detrital Rutiles from the Triassic–Jurassic Sandstones in Franz Josef Land (Barents Sea Region, Russian High Arctic): U-Pb Ages and Trace Element Geochemistry." Geosciences 14, no. 2 (2024): 41. http://dx.doi.org/10.3390/geosciences14020041.

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Provenance study plays an important role in paleogeographic and tectonic reconstructions. Detrital zircons are commonly used to identify sediment provenance; however, a wide range of detrital zircon ages in clastic rock often represent a fingerprint of reworked older terrigenous successions rather than ages of magmatism and metamorphism in the provenance area. This study focuses on the provenance of detrital rutile grains in the Triassic–Jurassic sandstones from Franz Josef Land and shows the importance of multiproxy approaches for provenance studies. Trace element data demonstrate that most r

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Corfu, F., and J. Wood. "U–Pb zircon ages in supracrustal and plutonic rocks; North Spirit Lake area, Northwestern Ontario." Canadian Journal of Earth Sciences 23, no. 7 (1986): 967–77. http://dx.doi.org/10.1139/e86-098.

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The North Spirit Lake greenstone belt in the Sachigo Subprovince of the Superior Province comprises parts of three sequences of volcanic and sedimentary rocks; the main (youngest) is separated from the older sequences by an unconformity to disconformity. The belt is bounded by large granitoid batholiths and was metamorphosed under greenschist to, locally, hornblende–cordierite facies. U–Pb zircon dating was performed on volcanic, sedimentary, and plutonic rocks in order to establish an absolute chronology for the evolution of the area.A tuff breccia in the lowermost supracrustal sequence is da

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41

Krautz, Jana, Mandy Hofmann, Andreas Gärtner, Ulf Linnemann, and Arno Kleber. "Capability of U–Pb dating of zircons from Quaternary tephra: Jemez Mountains, NM, and La Sal Mountains, UT, USA." E&G Quaternary Science Journal 67, no. 1 (2018): 7–16. http://dx.doi.org/10.5194/egqsj-67-7-2018.

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Abstract. Two Quaternary tephras derived from the Jemez Mountains, New Mexico – the Guaje and Tsankawi tephras – are difficult to distinguish due to their similar glass-shard chemical composition. Differences in bulk chemical composition are small as well. Here we examine the feasibility to assign an age to a distal tephra layer in the La Sal Mountains, Utah, by U–Pb dating of zircons and to correlate it with one of the two Jemez eruptions. We also dated original Jemez tephras for comparison. Even though the tephras are very young, we obtained reasonable age determinations using the youngest c

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42

Sun, Xilin, Klaudia F. Kuiper, Yuntao Tian, Chang’an Li, Zengjie Zhang, and Jan R. Wijbrans. "Comparison of Detrital Zircon U-Pb and Muscovite 40Ar/39Ar Ages in the Yangtze Sediment: Implications for Provenance Studies." Minerals 10, no. 7 (2020): 643. http://dx.doi.org/10.3390/min10070643.

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Detrital zircon U-Pb and muscovite 40Ar/39Ar dating are useful tools for investigating sediment provenance and regional tectonic histories. However, the two types of data from same sample do not necessarily give consistent results. Here, we compare published detrital muscovite 40Ar/39Ar and zircon U-Pb ages of modern sands from the Yangtze River to reveal potential factors controlling differences in their provenance age signals. Detrital muscovite 40Ar/39Ar ages of the major tributaries and main trunk suggest that the Dadu River is a dominant sediment contributor to the lower Yangtze. However,

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43

Pelech, Ondrej, Anna Vozárová, Pavel Uher, et al. "Late Permian volcanic dykes in the crystalline basement of the Považský Inovec Mts. (Western Carpathians): U–Th–Pb zircon SHRIMP and monazite chemical dating." Geologica Carpathica 68, no. 6 (2017): 530–42. http://dx.doi.org/10.1515/geoca-2017-0035.

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AbstractThis paper presents geochronological data for the volcanic dykes located in the northern Považský Inovec Mts. The dykes are up to 5 m thick and tens to hundreds of metres long. They comprise variously inclined and oriented lenses, composed of strongly altered grey-green alkali basalts. Their age was variously interpreted and discussed in the past. Dykes were emplaced into the Tatricum metamorphic rocks, mostly consisting of mica schists and gneisses of the Variscan (early Carboniferous) age. Two different methods, zircon SHRIMP and monazite chemical dating, were applied to determine th

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44

Peucat, J. J., D. Tisserant, R. Caby, and N. Clauer. "Resistance of zircons to U–Pb resetting in a prograde metamorphic sequence of Caledonian age in East Greenland." Canadian Journal of Earth Sciences 22, no. 3 (1985): 330–38. http://dx.doi.org/10.1139/e85-033.

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In the Alpefjord area, Caledonian metamorphism from the chlorite zone to the sillimanite zone is seen to cut across the sedimentary pile of the lower Eleonore Bay Group. Zircons have been collected from quartzite layers enriched in heavy minerals.U–Pb zircon dating in the chlorite and the sillimanite zones does not reveal the Caledonian event but, instead, previous episodes at 1100 and 2500 Ma ago. The Caledonian event can be recognized in anatectic gneisses where detrital zircons are surrounded by overgrowths, K–Ar and Rb–Sr methods yield 1030–410 Ma ages on micas, with a positive correlation

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KOLODNER, K., D. AVIGAD, M. McWILLIAMS, J. L. WOODEN, T. WEISSBROD, and S. FEINSTEIN. "Provenance of north Gondwana Cambrian–Ordovician sandstone: U–Pb SHRIMP dating of detrital zircons from Israel and Jordan." Geological Magazine 143, no. 3 (2006): 367–91. http://dx.doi.org/10.1017/s0016756805001640.

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A vast sequence of quartz-rich sandstone was deposited over North Africa and Arabia during Early Palaeozoic times, in the aftermath of Neoproterozoic Pan-African orogeny and the amalgamation of Gondwana. This rock sequence forms a relatively thin sheet (1–3 km thick) that was transported over a very gentle slope and deposited over a huge area. The sense of transport indicates unroofing of Gondwana terranes but the exact provenance of the siliciclastic deposit remains unclear. Detrital zircons from Cambrian arkoses that immediately overlie the Neoproterozoic Arabian–Nubian Shield in Israel and

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46

Ivanov, A. V., E. F. Letnikova, S. I. Shkolnik, A. V. Maslov, and N. I. Vetrova. "EARLY CAMBRIAN DEPOSITS OF THE CONTINENTAL MARGIN (SOUTH OF TUVA, TEREGTIG FORMATION): RESULTS OF U–Pb DATING OF DETRITAL ZIRCONS AND Sr-CHEMOSTRATIGRAPHY." Доклады Российской академии наук. Науки о Земле 512, no. 2 (2023): 165–73. http://dx.doi.org/10.31857/s2686739722602034.

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The sedimentation interval (530–520 Ma) of the Teregtig Formation deposits in southern Tuva is estimated based on U–Pb dating of detrital zircons from terrigenous deposits and Sr-chemostratigraphy of carbonate rocks. The main source area for clastic material, containing a large amount of detrital zircon grains, were rocks with an age of 580 Ma. The presence of a wide diversity of Precambrian detrital zircons indicates that sedimentation of the Teregtig Formation took place within a block of continental crust with a long evolutionary history. The presence of numerous chromites in their matrix i

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Sheikh, Lawangin, Wasiq Lutfi, Zhidan Zhao, and Muhammad Awais. "Geochronology, trace elements and Hf isotopic geochemistry of zircons from Swat orthogneisses, Northern Pakistan." Open Geosciences 12, no. 1 (2020): 148–62. http://dx.doi.org/10.1515/geo-2020-0109.

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AbstractIn this study, zircon grains are applied for U–Pb dating, Hf isotopes and trace elements to reveal the origin of magmatism and tectonic evolution of Late Paleozoic rocks of the Indian plate, Northern Pakistan. Most of the zircons are characterized by oscillatory zoning, depletion of light rare earth elements (LREE) and enrichment of heavy rare earth elements (HREE) with Ce and Eu anomalies. The yielded ages for these rocks are 256 ± 1.9 Ma and are plotted in the zones defined for the continental setting with few deviated toward the mid-oceanic ridge and the oceanic arc setting. Deviate

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48

Götze, J., U. Kempe, D. Habermann, L. Nasdala, R. D. Neuser, and D. K. Richter. "High-resolution cathodoluminescence combined with SHRIMP ion probe measurements of detrital zircons." Mineralogical Magazine 63, no. 2 (1999): 179–87. http://dx.doi.org/10.1180/002646199548411.

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AbstractCathodoluminescence (CL) microscopy and spectroscopy combined with SHRIMP ion probe measurements were carried out on detrital zircons from the Cretaceous Weferlingen quartz sand (Germany) to distinguish and characterize different zircon populations.Investigations by CL microscopy, SEM-CL and BSE imaging show that there are three main types of zircons (general grain sizes of 100–200 µm): (1) apparently weakly zoned, rounded grains with relict cores, (2) well rounded fragments of optically more or less homogeneous zircon grains showing CL zoning predominantly parallel to the z-axis, and

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Chang, Zhaoshan, J. D. Vervoort, W. C. McClelland, and C. Knaack. "LA-ICP-MS U-Pb dating of zircons: Error assessment." Geochimica et Cosmochimica Acta 70, no. 18 (2006): A96. http://dx.doi.org/10.1016/j.gca.2006.06.105.

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50

Krasnobaev, A. A., P. M. Valizer, and N. N. Farrakhova. "Zircons of fenites of Ilmeno-Vishnevogorsky Complex (Southern Urals)." LITHOSPHERE (Russia) 21, no. 3 (2021): 306–22. http://dx.doi.org/10.24930/1681-9004-2021-21-3-306-322.

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Research subject. U-Pb zircon dating, as well as a petrological and geochemical study of pyroxene-amphibole-, pyroxeneamphibole- biotite- and biotite-bearing fenites from the Central Alkaline Band Ilmeno-Vishnevogorsky Complex.Methods. The age of zircons was determined by an ion mass spectrometer (SHRIMP II, Centre of Isotopic Research VSEGEI). The content of REE and trace elements was estimated by secondary ion mass spectrometer methods (CAMECA IMS-4F, Valiev Institute of Physics and Technology RAS).Results. The mineralogical and geochemical (U, Th, REE) features of zircons, as well as fenite

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