Results 61 to 70 of about 19,693 (231)

Strontium Isotope Characteristics (δ88/86Sr, 87Sr/86Sr) of Arima‐Type Brines Originated From Slab‐Fluids

Geophysical Research Letters, 2023
In the southwest Japan forearc, slab‐fluids produced from subducted materials migrate to crustal levels and appear as deep‐seated brine. We have analyzed for the first‐time stable strontium isotopes in non‐volcanic spring water with high salinity ...
T. Kani, K. Misawa, N. Morikawa, K. Kazahaya, F. Kusuhara, S. Yoneda, Y. Terakado   +6 more
doaj   +1 more source

Sr-Nd-Pb-Hf isotope results from ODP Leg 187: Evidence for mantle dynamics of the Australian-Antarctic Discordance and origin of the Indian MORB source [PDF]

, 2002
New high precision PIMMS Hf and Pb isotope data for 14–28 Ma basalts recovered during ODP Leg 187 are compared with zero-age dredge samples from the Australian-Antarctic Discordance (AAD).
Alvarez, Anderson, Arculus, Barling, Ben Othman, Charles Langmuir, Chauvel, Christie, Christie, David M. Christie, Donnelly, Dosso, Fitton, Fitzsimons, Forsyth, Frey, Frey, Galer, Graham, Gurnis, Hamelin, Hanan, Hart, Hemming, Hochstaedter, J. Godfrey Fitton, Julian A. Pearce, Kelly, Kempton, Kempton, Kent, Klein, Klein, Kuo, Lanyon, Lanyon, Mahoney, Mahoney, Mahoney, Mahoney, Marks, Marks, Marsh, Michard, Nowell, Palmer, Pamela D. Kempton, Patchett, Patchett, Pearce, Pearce, Pearce, Pearce, Peate, Plank, Pyle, Pyle, Pyle, Rehkämper, Royer, Russo, Salters, Salters, Sempéré, Smith, Storey, Tiffany L. Barry, Todt, Unrug, Vervoort, Vlastelic, Vogt, Weis, Weissel, Weissel, West, Yang, Zhang   +77 more
core   +2 more sources

A Common Reference Material for Mass‐Dependent Sn Isotope Compositions: An Inter‐Laboratory Calibration Approach

Geostandards and Geoanalytical Research, Volume 50, Issue 2, Page 341-367, June 2026.
Key Points We recommend using the notation δ122/118SnNIST SRM 3161a for mass‐dependent Sn isotope data. We derived conversion factors relative to NIST SRM 3161a for Puri Sn CEZA (0.132 ± 0.011‰), Sn Lyon (0.229 ± 0.016‰), Sn IPGP (0.162 ± 0.018‰). Tin isotope compositions are presented for SPEX CertiPrep Sn and nine USGS reference materials.
Aurélia C.E. Meister, Manuela A. Fehr, Quentin Amet, Gerhard Brügmann, Caroline Fitoussi, Matthias Friebel, Weiqiang Li, Frederic Moynier, Jia‐Xin She, Xueying Wang, Maria Schönbächler   +10 more
wiley   +1 more source

The palaeoenvironmental potential of bioarchaeological isotope data

Communications Earth & Environment
Bioarchaeology not only provides insights into human, animal, and environmental ecology, but also generates huge amounts of stable and radiogenic isotope data that are not well recognised by other disciplines.
Margaux L. C. Depaermentier, Michael Kempf, Marc Vander Linden, Kate Britton, Richard Madgwick, Ulf Büntgen, Dorothée G. Drucker, Jennifer R. Jones, Christophe Snoeck, Rhiannon E. Stevens   +9 more
doaj   +1 more source

Metasomatized lithospheric mantle for Mesozoic giant gold deposits in the North China craton [PDF]

, 2020
The origin of giant lode gold deposits of Mesozoic age in the North China craton (NCC) is enigmatic because high-grade metamorphic ancient crust would be highly depleted in gold.
Becker, Harry, Cheng, Huai, Foley, Stephen, Geng, Xianlei, Liu, Yongsheng, Wang, Christina Yan, Wang, Zaicong, Wu, Fuyuan, Yang, Jinhui, Zong, Keqing   +9 more
core   +1 more source

Atmospheric dust is a global nutrient source for plants via foliar uptake

New Phytologist, Volume 250, Issue 5, Page 2867-2883, June 2026.
Summary Atmospheric mineral dust is a critical nutrient supplier to marine ecosystems, but its role in terrestrial plant nutrition remains underexplored due to the assumption that nutrients are acquired solely from soils via roots. Here, we demonstrate that plants directly acquire nutrients from dust through leaves, revealing an unrecognized ...
Anton Lokshin, Daniel Palchan, Marcelo Sternberg, Tom Goren, Mahdi (André) Nakhavali, Avner Gross   +5 more
wiley   +1 more source

The Paleoproterozoic Nattanen-type granites in northern Finland and vicinity - a postcollisional oxidized A-type suite [PDF]

Bulletin of the Geological Society of Finland, 2009
The ~1.8 Ga Nattanen-type granites in the Finnish Lapland and western Kola Peninsula are found as several relatively small, high-level, discordant plutons that are easily discernible as weak maxima on aeromagnetic maps.
E. Heilimo, J. Halla, L.S. Lauri, O.T. Rämö, H. Huhma, M.I. Kurhila, K. Front   +6 more
doaj   +1 more source

Uranium, vanadium, and chromium in fish scales: A redox‐unrelated accumulation pathway in continental margin sediments

Limnology and Oceanography, Volume 71, Issue 5, May 2026.
Abstract Enrichment patterns of the redox‐ and bio‐sensitive trace elements U, V, Cr, and Ni in margin sediments are essential for environmental reconstructions. However, their sedimentary accumulation pathways are not fully understood. While the accumulation of toxic trace elements like Cd, Hg, Pb, and Zn has been relatively well studied in fish ...
Frederik Gäng, Lena Göller, Volker Brüchert, Katharina Pahnke, Philipp Böning   +4 more
wiley   +1 more source

Springtime Formation of Laminated Soil Carbonate Rinds and Changes in Fluvial Terrace Soils on Orbital Timescales at Rio Mesa, Utah, USA

Geochemistry, Geophysics, Geosystems, Volume 27, Issue 5, May 2026.
Abstract Laminated soil carbonate rinds are a Quaternary paleoclimate archive whose isotope composition is linked to soil formation conditions. At Rio Mesa, Utah (USA), we investigated the fidelity of rind records in a river terrace setting by determining the seasonal timing of rind formation and testing for inter‐record replication.
Tyler E. Huth, Thure E. Cerling, David W. Marchetti, Amy L. Ellwein, Shannon Mahan, David R. Bowling, Benjamin H. Passey, Victor J. Polyak, Yemane Asmerom   +8 more
wiley   +1 more source

Metal sources for the Katanga Copperbelt deposits (DRC) insights from Sr and Nd isotope ratios [PDF]

, 2014
The ore deposits of the Central African Copperbelt formed during a multiphase mineralisation process. The basement underlying the Neoproterozoic Katanga Supergroup that hosts the ore, demonstrates the largest potential as metal source.
El Desouky, Hamdy A, Elburg, Marlina A, Muchez, Philippe, Van Wilderode, Jorik, Vanhaecke, Frank   +4 more
core   +1 more source