Showing 1 - 17 results of 17 for search 'lead isotopes', query time: 0.05s Refine Results
  1. 1

    Rapid isotopic exchange in mineralogically unaltered coral skeletons by Jarosław Stolarski, Deyanira Cisneros-Lazaro, Arthur Adams, Katarzyna Janiszewska, Anders Meibom

    Published 2025-07-01
    “…Simulated diagenesis experiments using modern coral skeletons immersed in 18O-enriched artificial seawater revealed that microstructural complexity – specifically, the phylogenetically controlled arrangement of rapid accretion and thickening deposits – strongly influences isotopic exchange. Organic-rich regions within the skeleton facilitate water penetration, leading to heterogeneous isotopic alteration correlated with skeletal architecture. …”
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  2. 2

    Heavy boron isotopes in plume-derived magmas trace recycled water in deep-mantle reservoir by Jian Xu, Xiao-Ping Xia, Omar Bartoli, Le Zhang, Yong Wang, Jin-Long Ma, Ze-Xian Cui, Yan-Qiang Zhang, Qing Yang, Qiang Wang, Yi-Gang Xu

    Published 2025-07-01
    “…Here we report boron isotope data for Middle/Late Permian picrites and basalts from the Emeishan Large Igneous Province in South China. …”
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  3. 3

    Methylmercury carbon isotope fractionation during biotic methylation by the bacterial BerOc1 strain by Luisa M. Malberti-Quintero, Jin-Ping Xue, Remy Guyoneaud, Alina Kleindienst, Christelle Lagane, Laure Laffont, Jeroen E. Sonke, Zoyne Pedrero, Emmanuel Tessier, David Amouroux, David Point

    Published 2025-07-01
    “…The maximum methylation yield observed in our samples was around 15% of the available iHg and a constant C isotope fractionation was detected over time. We propose that the methyl group is metabolically transferred from the carbon sources to cobalamin in the HgcA protein and subsequently to inorganic mercury (iHg), leading to consistent light C isotope enriched CH3Hg signatures.…”
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  4. 4

    Embedding Monodisperse LaOx Into Pt Nanoclusters for Ultra‐Stable and Efficient Hydrogen Isotope Oxidation by Guilin Wei, Jiangfeng Song, Yan Shi, Linsen Zhou, Xianglin Wang, Junhong Luo, Ning Liu, Feize Li, Xingwen Feng

    Published 2025-08-01
    “…Abstract Catalytic oxidation plays a crucial role in the efficient treatment of hydrogen isotopes, with the key technical challenge being the development of high‐performance catalysts to enhance isotope removal efficiency, thereby reducing environmental pollution and ensuring public radiation safety. …”
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  5. 5

    A Young Crustal Component in the Caroline Mantle Plume (Western Pacific Ocean) by Yuan Zhong, Ji Zhang, Sanzhong Li, Guo‐Liang Zhang

    Published 2025-07-01
    “…We suggest the circum‐Rodinia subduction could lead to such preferential appearance of young crustal materials, and consequently result in the zoned compositional structure of the Pacific LLSVP.…”
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  6. 6

    Alpine peatland degradation enhances soil nitrogen losses and alters plant nitrogen uptake strategies: evidence from nitrogen isotopes by Xiaodong Zhang, Lijuan Cui, Xin Jia, Liang Yan, Yong Li, Zhongqing Yan, Kerou Zhang, Ao Yang, Yuechuan Niu, Enze Kang, Xiaoming Kang

    Published 2025-08-01
    “…Although the abundance of stable nitrogen isotopes (δ15N) has been widely used to trace nitrogen processes, their patterns and implications across degradation gradients are not well understood. …”
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  7. 7

    The Influence of Tree Infilling on Energy Partitioning, Vegetation Water Use, and Soil Water State in Sparse Conifer Stands of the Taiga Shield Ecoregion by C. Spence, A. Coles, J. J. Gibson, E. M. Nicholls, N. Perron, A. Sniderhan, O. Sonnentag, J. L. Baltzer

    Published 2024-08-01
    “…As denser canopies become more prevalent on the landscape, this switch in relative importance of evapotranspirative processes will lead to a reduction in inter‐annual variability of evapotranspiration. …”
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  8. 8

    Chromosomal Inversion Associated With Diet Differences in Common Quails Sharing Wintering Grounds by Celia Vinagre‐Izquierdo, Ines Sanchez‐Donoso, Jennifer A. Leonard, José Domingo Rodríguez‐Teijeiro, Carles Vilà

    Published 2025-08-01
    “…Thus, two separately evolving chromosomal lineages, characterized by the presence/absence of the inversion, coexist in the wintering area, leading to differences in morphology, behavior, and resource use. …”
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  9. 9

    The Intentional and Unintentional Human Food Subsidy Landscape for a Large Carnivore by Matthew M. Smith, David M. MacFarland, Jennifer L. Price Tack, Jonathan N. Pauli

    Published 2025-08-01
    “…We estimated the proportional diets of black bears using stable isotope analysis (δ13C and δ15N) from a statewide sampling in Wisconsin. …”
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  10. 10

    Spatiotemporal variability in the feeding habits of anchovy and sardine: a comparison of upwelling and river-runoff driven ecosystems by Paola Rumolo, Marco Barra, Angelo Bonanno, Simona Altieri, Rosalia Ferreri, Antonella Gargano, Gualtiero Basilone, Serena Gherardi, Simona Genovese, Maria Rosa Di Cicco, Carmine Lubritto

    Published 2025-08-01
    “…Moreover, the greater number of cases showing wider isotopic niches and higher isotopic overlap between species—and between life stages—in the Tyrrhenian Sea than in the Strait of Sicily suggests higher variability in feeding behaviour and access to more diversified food sources. …”
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  11. 11

    Microbial and mineral interactions decouple litter quality from soil organic matter formation by Dafydd M. O. Elias, Kelly E. Mason, Tim Goodall, Ashley Taylor, Pengzhi Zhao, Alba Otero-Fariña, Hongmei Chen, Caroline L. Peacock, Nicholas J. Ostle, Robert Griffiths, Pippa J. Chapman, Joseph Holden, Steve Banwart, Niall P. McNamara, Jeanette Whitaker

    Published 2024-11-01
    “…We find that high-quality litter leads to less (not more) efficient formation of mineral-associated SOC due to soil microbial community shifts which lower carbon use efficiency. …”
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  12. 12

    Non-Ferrous and Precious Metal Items from the Burials of the Beslan Catacomb Burial Ground: Results of an Analytical Study by Irina Saprykina, Andrey Chugaev, Dmitry Korobov, Irina Rassokhina

    Published 2025-07-01
    “…In the burials of the second and third quarters of the 4th century there are objects made from high-leaded tin bronze, a multicomponent lead alloy, copper and a silver alloy of conventional 810 fineness. …”
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  13. 13

    Soil moisture and precipitation intensity jointly control the transit time distribution of quick flow in a flashy headwater catchment by H. Türk, C. Stumpp, M. Hrachowitz, K. Schulz, P. Strauss, G. Blöschl, M. Stockinger

    Published 2025-08-01
    “…<p>The rainfall–runoff transformation in catchments usually follows a variety of slower and faster flow paths, leading to a mixture of “younger” and “older” water in streamflow. …”
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  14. 14

    First evidence of bronze production in the Iron Age I southern Levant: A direct link to the Arabah copper polity. by Tzilla Eshel, Yoav Bornstein, Gal Bermatov-Paz, Shay Bar

    Published 2025-01-01
    “…Microstructural features indicate that primary alloying of copper and tin-rather than the re-melting of scrap-was practiced at the site. Lead isotope analysis, chemical composition, and microstructure link some of the metal specifically to the Faynan ores, and other finds to the Timna ores, suggesting that both ores, possibly controlled by a joint polity, supplied copper to el-Ahwat. …”
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  15. 15

    Discordance dating: A new approach for dating alteration events by J. R. Reimink, R. Beckman, E. Schoonover, M. Lloyd, J. Garber, J. H. F. L. Davies, A. Cerminaro, A. Cerminaro, M. G. Perrot, M. G. Perrot, A. Smye

    Published 2025-08-01
    “…Zircon U-Pb systematics can be perturbed by the loss or gain of uranium and/or lead, which can result in disagreement between the apparent radiometric ages of the two U-Pb decay systems – a phenomenon that is commonly termed “discordance”. …”
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  16. 16

    Influences of Diet Quality, Nursery‐Habitat Complexity and Sex on Brain Development and Cognitive Performance of Brown Trout (Salmo trutta L.) by J. Peter Koene, Libor Závorka, Matthias Pilecky, Kathryn R. Elmer, Colin E. Adams

    Published 2025-08-01
    “…However, dietary deficiency in n‐3 LC‐PUFA did lead to smaller brains, and smaller brains were associated with lower cognitive performance. …”
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