Zobrazeno 1 - 10
of 12 333
pro vyhledávání: '"Isotope fractionation"'
Autor:
Cotrufo, Francesca, author, Pressler, Yamina, author
Externí odkaz:
https://doi.org/10.1093/oso/9780198854494.001.0001
Publikováno v:
Frontiers in Earth Science, Vol 12 (2024)
The Yan’an gas field in the Ordos Basin is a typical deep coalbed methane field with tremendous resource potential. Evaluation methods for gas content in deep coal seams are urgently required to be established. This study is aimed at quantitatively
Externí odkaz:
https://doaj.org/article/8035d80b1ab548779f54d3a6e57f3966
Publikováno v:
Ecotoxicology and Environmental Safety, Vol 283, Iss , Pp 116770- (2024)
Isotope technology is an ideal tool for tracing the sources of certain pollutants or providing insights into environmental processes. In recent years, the advent of multi-collector inductively coupled plasma mass spectrometry (MC-ICP-MS) has enabled
Externí odkaz:
https://doaj.org/article/a91bac1450ee49c2bd3b732c51d5a9b0
Publikováno v:
Ecosphere, Vol 15, Iss 8, Pp n/a-n/a (2024)
Abstract Nitrogen isotope analyses of amino acids (δ15N‐AA) are being increasingly used to decipher trophic dynamics. Interpretation of δ15N‐AA in consumers relies on the assumption that consumer physiological status and nutritional status of p
Externí odkaz:
https://doaj.org/article/e2270c9050bc4748bb5cf9f0f2b0817f
Autor:
X. Bian, S.‐C. Yang, R. J. Raad, C. E. Odendahl, N. T. Lanning, M. Sieber, K.‐F. Huang, J. N. Fitzsimmons, T. M. Conway, S. G. John
Publikováno v:
Geophysical Research Letters, Vol 51, Iss 16, Pp n/a-n/a (2024)
Abstract Nickel stable isotopes (δ60Ni) provide insight to Ni biogeochemistry in the modern and past oceans. Here, we present the first Pacific Ocean high‐resolution dissolved Ni concentration and δ60Ni data, from the US GEOTRACES GP15 cruise. As
Externí odkaz:
https://doaj.org/article/d4dea485a3424ba0aaad1358b36467b8
Publikováno v:
Guangxi Zhiwu, Vol 44, Iss 3, Pp 576-585 (2024)
Nitrate is predominant in the karst soils. However, the temporal and spatial heterogeneities are observed for the nitrate content in the soils. Hence, the Morus alba seedlings grown in karst regions may suffer from low nitrogen stress. In order to pr
Externí odkaz:
https://doaj.org/article/b2eb14ce18de4f61b4f34782ba755416
Publikováno v:
Записки Горного института, Vol 265, Pp 3-15 (2024)
Carbonate-silicate rocks of unclear origin have been observed in granulites of the Porya Guba of the Lapland-Kolvitsa Belt within the Fennoscandinavian Shield. The present work aims to reconstruct possible protoliths and conditions of metamorphic tra
Externí odkaz:
https://doaj.org/article/4f9355627b074d729254ac67b1f2c41a
Autor:
Wenbiao Li, Jun Wang, Chengzao Jia, Shuangfang Lu, Junqian Li, Pengfei Zhang, Yongbo Wei, Zhaojing Song, Guohui Chen, Nengwu Zhou
Publikováno v:
Geoscience Frontiers, Vol 15, Iss 6, Pp 101912- (2024)
The phenomenon of carbon isotopic fractionation, induced by the transport of methane in tight sedimentary rocks through processes primarily involving diffusion and adsorption/desorption, is ubiquitous in nature and plays a significant role in numerou
Externí odkaz:
https://doaj.org/article/12605baf792f40f5b4d38c3d70da1a8d
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