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Showing 41-60 of 10,000 results
  1. Fossil organic carbon utilization in marine Arctic fjord sediments by subsurface micro-organisms

    Rock-derived or petrogenic organic carbon has traditionally been regarded as being non-bioavailable and bypassing the active carbon cycle when...

    Manuel Ruben, Jens Hefter, ... Gesine Mollenhauer in Nature Geoscience
    Article Open access 01 June 2023
  2. The Lunar Breccia Dhofar 1442: Noble Gases, Nitrogen, and Carbon Released by Stepwise Combustion and Crushing

    Stepwise crushing and combustion methods were applied to study the KREEP-rich lunar breccia Dhofar 1442, the clastic material of which is cemented by...

    E. V. Korochantseva, A. B. Verchovsky, A. V. Korochantsev in Geochemistry International
    Article Open access 08 December 2022
  3. Prototypes of New Radiopharmaceuticals Based on Carbon Nanomaterials: Nanodiamonds Versus Nanotubes

    Radiopharmaceuticals (RPs) in nuclear medicine can include radioactive isotope carriers, which are often nanoparticles of various nature. This review...
    A. G. Kazakov, J. S. Babenya, ... B. F. Myasoedov in Advances in Geochemistry, Analytical Chemistry, and Planetary Sciences
    Chapter 2023
  4. Palaeozoic cooling modulated by ophiolite weathering through organic carbon preservation

    Ophiolite obductions in the tropics are coeval with Phanerozoic glaciations. The exposure of mafic and ultramafic rocks is thought to trigger cooling...

    Joshua Murray, Oliver Jagoutz in Nature Geoscience
    Article 30 November 2023
  5. An isotope, elemental, and n-alkane baseline for organic matter sources in sediments of high-altitude lakes in the Uinta Mountains, Utah, USA

    This research provides a critical baseline for chemical and macromolecular characteristics of organic matter (OM) sources in high-elevation lake...

    R. M. Doyle, F. J. Longstaffe, K. A. Moser in Journal of Paleolimnology
    Article 16 September 2022
  6. Assessment of carbon isotopic signature of Daphnia ephippia as a proxy for past carbon transfers to pelagic food webs in Jura lakes

    Previous studies suggested that past changes in carbon sources and pathways in pelagic food webs can be investigated using carbon isotopic analysis (δ

    Valentin Essert, Laurent Millet, ... Hélène Masclaux in Journal of Paleolimnology
    Article 25 August 2023
  7. Experimental Characterization of PM2.5 Organic Carbon by Using Carbon-fraction Profiles of Organic Materials

    Organic aerosols (OA) in the atmosphere have complex emission sources and formation processes that must be determined to understand the OA...

    Article Open access 01 June 2022
  8. Effect of Carbon on the Melting Behavior of a Mold Powder under High Heating Rates

    Mold powders used for the continuous casting of steels contain different carbon carriers controlling the melting behavior. During melting, carbon...

    Article Open access 25 October 2023
  9. Elemental interactions between pore water and lake sediments with their environmental significance: a case as Holocene sediments in Guozha Co, northwestern Tibetan Plateau

    Elements in lake sediments and lake water were commonly used in the reconstruction for the paleoenvironment and paleoclimate, and also enriched into...

    Minghui Li, Li** Zhu, ... Bao** Qiao in Environmental Earth Sciences
    Article 30 January 2024
  10. Comparison of log-ratio and log10 chemical elemental data analysis of Central Amazonian pottery and archaeological implications

    The additive log-ratio (alr) transformation is recommended as one of the most robust data transformations for multivariate analysis of archaeometric...

    Roberto Hazenfratz, Guilherme Z. Mongeló, ... Eduardo G. Neves in Archaeological and Anthropological Sciences
    Article 10 April 2024
  11. Anthropogenic impacts on mud and organic carbon cycling

    Fine-grained muds produced largely from rock weathering at the Earth’s surface have great influence on global carbon cycling. Mud binds and protects...

    Thomas S. Bianchi, Lawrence M. Mayer, ... Pierre Regnier in Nature Geoscience
    Article 09 April 2024
  12. Fabricating modified carbon of oak fruit for adsorption of fluoride and nitrate from aqueous media: isotherm and kinetic models

    Fluoride and nitrate are one of the developed compounds that can enter water resources in different ways. The present research examines the...

    Ali Ramezani, Bahareh Lorestani, ... Heshmatollah Nourmoradi in Applied Water Science
    Article Open access 02 November 2023
  13. Geomorphic controls on the abundance and persistence of soil organic carbon pools in erosional landscapes

    Soils play a central role in the global carbon cycle and constitute a key component of natural climate solutions that require quantitative...

    Brooke D. Hunter, Joshua J. Roering, ... Kimber C. Moreland in Nature Geoscience
    Article 29 January 2024
  14. Bioaccumulation of Chemical Elements and Organic Carbon in Macrozoobenthic Organisms of the Laptev Sea

    Abstract

    Within the program “Marine Ecosystems of the Siberian Arctic,” based on materials collected during cruises 69 and 72 of the R/V Akademik...

    L. L. Demina, S. V. Galkin, A. S. Solomatina in Oceanology
    Article 01 February 2024
  15. Deep CO2 release and the carbon budget of the central Apennines modulated by geodynamics

    Recent studies increasingly recognize the importance of critical-zone weathering during mountain building for long-term CO 2 drawdown and release....

    Erica Erlanger, Aaron Bufe, ... Niels Hovius in Nature Geoscience
    Article Open access 19 April 2024
  16. Soil carbon in tropical savannas mostly derived from grasses

    Tropical savannas have been increasingly targeted for carbon sequestration by afforestation, assuming large gains in soil organic carbon (SOC) with...

    Yong Zhou, Barbara Bomfim, ... A. Carla Staver in Nature Geoscience
    Article 27 July 2023
  17. Temporal patterns in sediment, carbon, and nutrient burial in ponds associated with changing agricultural tillage

    Lakes and ponds play a disproportionate role in retaining sediment, carbon, nitrogen, and phosphorus, potentially mitigating negative environmental...

    Martina N. Rogers, Tanner J. Williamson, ... Michael J. Vanni in Biogeochemistry
    Article 17 March 2022
  18. Non-hydrothermal saddle dolomite in Upper Cambrian dolostones of Tarim Basin: evidence from C–O–Sr isotopic and in-situ trace elemental studies

    The Upper Cambrian dolostones in the Tarim Basin are interpreted to be intensely altered by hydrothermal fluids during the burial diagenesis, and the...

    Lu Ziye, Li Yingtao, ... Huang Baiwen in Carbonates and Evaporites
    Article 20 July 2022
  19. Trends of carbon and nutrient accumulation through time in the Andong salt marsh, Hangzhou Bay, China

    Salt marshes are important carbon and nutrient sinks that are threatened by climate changes and human activities. In this study, the accumulation...

    Pei Sun Loh, Aimin **, ... Longxiu Cheng in Journal of Oceanology and Limnology
    Article 05 October 2023
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