Guidelines and recommended terms for expression of stable-isotope-ratio and gas-ratio measurement results
Coplen, Tyler B.·2011·Rapid Communications in Mass Spectrometry
DOI 10.1002/rcm.5129
Cited by (1,821)
Items 401–500 of 1,821
- 17 O‐excess as a detector for co‐extracted organics in vapor analyses of plant isotope signaturesMagali F. Nehemy, Cody Millar, Kim Janzen · 2019 · Rapid Communications in Mass Spectrometry
- The soil organic carbon stabilization potential of old and new wheat cultivars: a 13 CO 2 -labeling studyMarijn Van de Broek, Shiva Ghiasi, Charlotte Decock, Andreas Hund, Samuel Abiven, Cordula Friedli, Roland Anton Werner, Johan Six · 2020 · Biogeosciences
- Food Matrix Reference Materials for Hydrogen, Carbon, Nitrogen, Oxygen, and Sulfur Stable Isotope-Ratio Measurements: Collagens, Flours, Honeys, and Vegetable OilsArndt Schimmelmann, Haiping Qi, Philip J. H. Dunn et al. · 2020 · Journal of Agricultural and Food Chemistry
- Chemometric Discrimination of the Geographical Origin of Three Greek Cultivars of Olive Oils by Stable Isotope Ratio AnalysisMaria Tarapoulouzi, Vasiliki Skiada, Sofia Agriopoulou · 2021 · Foods
- Stable isotope and photosynthetic response of tea grown under different temperature and light conditionsWei Xia, Chunlin Li, Jing Nie · 2021 · Food Chemistry
- Paleoenvironment of the Eocene coal seam in the Fushun Basin (NE China): Implications from petrography and organic geochemistrySusanne A.I. Strobl, Reinhard F. Sachsenhofer, Achim Bechtel, Qingtao Meng · 2014 · International Journal of Coal Geology
- Dynamics of particulate organic matter in a coastal system characterized by the occurrence of marine mucilage – A stable isotope studyCamilla Liénart, Nicolas Susperrégui, Vanessa Rouaud et al. · 2016 · Journal of Sea Research
- Multidimensional isotope analysis of carbon, hydrogen and oxygen as tool for identification of the origin of ibuprofenTetyana Gilevska, Matthias Gehre, Hans Hermann Richnow · 2015 · Journal of Pharmaceutical and Biomedical Analysis
- Malate as a key carbon source of leaf dark-respired CO2across different environmental conditions in potato plantsMarco M. Lehmann, Katja T. Rinne‐Garmston, Carola H. Blessing · 2015 · Journal of Experimental Botany
- Compound-Specific Carbon, Nitrogen, and Hydrogen Isotope Analysis of N -Nitrosodimethylamine in Aqueous SolutionsStephanie Spahr, Jakov Bolotin, Jürgen Schleucher · 2015 · Analytical Chemistry
- Compound-specific δ13C and δ2H analysis of olive oil fatty acidsMauro Paolini, Luana Bontempo, Federica Camin · 2017 · Talanta
- Effectiveness of different pre‐treatments in recovering pre‐burial isotopic ratios of charred plantsOtto Brinkkemper, Freek Braadbaart, Bertil van Os · 2017 · Rapid Communications in Mass Spectrometry
- Underestimation of denitrification rates from field application of the 15 N gas flux method and its correction by gas diffusion modellingReinhard Well, Martin Maier, Dominika Lewicka‐Szczebak · 2019 · Biogeosciences
- Constraining N cycling in the ecosystem model LandscapeDNDC with the stable isotope model SIMONETobias Denk, David Kraus, Ralf Kiese · 2019 · Ecology
- The role of ICP-MS in inorganic chemical metrologyMike Sargent, Heidi Goenaga Infante, Kazumi Inagaki et al. · 2019 · Metrologia
- The Role of Matric Potential, Solid Interfacial Chemistry, and Wettability on Isotopic Equilibrium FractionationMarcel Gaj, Axel Lamparter, Susanne K. Woche · 2019 · Vadose Zone Journal
- Biologically mediated release of endogenous N2O and NO2 gases in a hydrothermal, hypoxic subterranean environmentTamara Martín-Pozas, Sergio Sánchez Moral, Soledad Cuezva, Valme Jurado, Cesáreo Sáiz‐Jiménez, Raúl Pérez‐López, Raúl Carrey, Neus Otero, Anette Giesemann, Reinhard Well et al. · 2020 · The Science of The Total Environment
- A field trials-based authentication study of conventionally and organically grown Chinese yams using light stable isotopes and multi-elemental analysis combined with machine learning algorithmsChao-Geng Lyu, Jian Tao Yang, Tielin Wang et al. · 2020 · Food Chemistry
- Empirical and experimental constraints on Fe-Ti oxide-melt titanium isotope fractionation factorsLiam Hoare, Martijn Klaver, Duncan Muir · 2022 · Geochimica et Cosmochimica Acta
- Carbon and nitrogen allocation and partitioning in traditional and modern wheat genotypes under pre‐industrial and future CO 2 conditionsSalvador Aljazairi, Claudia Vanina Arias, Salvador Nogués · 2014 · Plant Biology
- Trophic plasticity of Antarctic echinoids under contrasted environmental conditionsLoïc N. Michel, Bruno David, Philippe Dubois · 2015 · Polar Biology
- Combined chemical and microbiological degradation of tetrachloroethene during the application of Carbo-Iron at a contaminated field siteMaria Vogel, Ivonne Nijenhuis, Jonathan Richard Lloyd · 2018 · The Science of The Total Environment
- Unravelling sources of solutes in groundwater of an ancient landscape in NW Australia using stable Sr, H and O isotopesShawan Dogramaci, Grzegorz Skrzypek · 2014 · Chemical Geology
- Tooth enamel sampling strategies for stable isotope analysis: Potential problems in cross-method data comparisonsHazel Reade, Rhiannon Elisabeth Stevens, Graeme Barker · 2015 · Chemical Geology
- Diet of harbor porpoises along the Dutch coast: A combined stable isotope and stomach contents approachOkka E. Jansen, Loïc N. Michel, Gilles Lepoint · 2012 · Marine Mammal Science
- Discrepancies between the stable isotope compositions of water, macrophyte carbonates and organics, and mollusc shells in the littoral zone of a charophyte-dominated lake (Lake Lednica, Poland)Karina Apolinarska, Mariusz Pełechaty, Eugeniusz Pronin · 2015 · Hydrobiologia
- Facultative paedomorphosis as a mechanism promoting intraspecific niche differentiationBenjamin Lejeune, Nicolas Sturaro, Gilles Lepoint · 2017 · Oikos
- Isotopic evidence of nitrate degradation by a zero-valent iron permeable reactive barrier: Batch experiments and a field scale studyAlba Grau-Martínez, Clara Torrentó, Raúl Carrey · 2019 · Journal of Hydrology
- Eddy covariance measurements of the dual-isotope composition of evapotranspirationJelka Braden-Behrens, Christian Markwitz, Alexander Knohl · 2019 · Agricultural and Forest Meteorology
- Differentiating wild, lake-farmed and pond-farmed carp using stable isotope and multi-element analysis of fish scales with chemometricsZhi Liu, Yuwei Yuan, Yan Zhao · 2020 · Food Chemistry
- Nitrate and nitrite reduction by ferrous iron minerals in polluted groundwater: Isotopic characterization of batch experimentsRosanna Margalef-Martí, Raúl Carrey, José Antonio Benito · 2020 · Chemical Geology
- Integrative taxonomy revisits the ontogeny and trophic niches ofRimicarisvent shrimpsPierre Methou, Loïc N. Michel, Michel Segonzac, Marie‐Anne Cambon‐Bonavita, Florence Pradillon · 2020 · Royal Society Open Science
- Inter‐laboratory Characterisation of Apatite Reference Materials for Chlorine Isotope AnalysisAlicja Wudarska, Ewa Słaby, Michael Wiedenbeck, Jaime D. Barnes, Magali Bonifacie, Neil C. Sturchio, Gérard Bardoux, Frédéric Couffignal, Johannes Glodny, Linnea J. Heraty et al. · 2020 · Geostandards and Geoanalytical Research
- Trophic indices for micronektonic fishes reveal their dependence on the microbial system in the North AtlanticAntonio Bode, María Pilar Olivar, Santiago Hernández‐León · 2021 · Scientific Reports
- Processes affecting greenhouse gas production in experimental boreal reservoirsJason J. Venkiteswaran, Sherry L. Schiff, Vincent L. St. Louis · 2013 · Global Biogeochemical Cycles
- Deposition of coal and oil shale in NE China: The Eocene Huadian Basin compared to the coeval Fushun BasinSusanne A.I. Strobl, Reinhard F. Sachsenhofer, Achim Bechtel, Qingtao Meng, Pingchang Sun · 2015 · Marine and Petroleum Geology
- A revision in hydrogen isotopic composition of USGS42 and USGS43 human-hair stable isotopic reference materials for forensic scienceTyler B. Coplen, Haiping Qi · 2016 · Forensic Science International
- Integration of stable carbon isotope, microbial community, dissolved hydrogen gas, and 2HH2O tracer data to assess bioaugmentation for chlorinated ethene degradation in fractured rocksKinga M. Revesz, Barbara Sherwood Lollar, Julie D. Kirshtein · 2013 · Journal of Contaminant Hydrology
- An overview of methods used for the detection of aquatic resource consumption by humans: Compound-specific delta N-15 analysis of amino acids in archaeological materialsYuichi I. Naito, Hervé Bocherens, Yoshito Chikaraishi · 2015 · Journal of Archaeological Science Reports
- Stable Hg Isotope Signatures in Creek Sediments Impacted by a Former Hg MineRobin S. Smith, Jan G. Wiederhold, Adam D. Jew · 2014 · Environmental Science & Technology
- Molecular and carbon isotopic characterization of an anaerobic stable enrichment culture containing Dehalobacterium sp. during dichloromethane fermentationAlba Trueba-Santiso, Eloi Parladé, Mònica Rosell · 2017 · The Science of The Total Environment
- Vanilla authenticity control by DNA barcoding and isotope data aggregationKatrin Geißler, Markus Greule, Uwe Schäfer · 2017 · Flavour and Fragrance Journal
- Modeling 3D-CSIA data: Carbon, chlorine, and hydrogen isotope fractionation during reductive dechlorination of TCE to etheneBoris M. van Breukelen, Héloïse A.A. Thouement, Philip E. Stack · 2017 · Journal of Contaminant Hydrology
- δ15N and nutrient stoichiometry of water, aquatic organisms and environmental implications in Taihu lake, ChinaYu Tao, Dai Dan, Lei Kun, Chengda He, Cong Haibing, Fu Guo, Qiujin Xu, Sun Fuhong, Fengchang Wu · 2018 · Environmental Pollution
- Respective contribution of urban wastewater and mangroves on nutrient dynamics in a tropical estuary during the monsoon seasonPierre Taillardat, Cyril Marchand, Daniel A. Friess, David Wîdory, David Frank, Nobuhito Ohte, Takashi Nakamura, Truong Van Vinh, Nguyen Thanh Nho, Alan D. Ziegler · 2020 · Marine Pollution Bulletin
- Experimental drought increased the belowground sink strength towards higher topsoil organic carbon stocks in a temperate mature forestMelanie Brunn, Jaane Krüger, Friederike Lang · 2023 · Geoderma
- Secular changes of water chemistry in shallow-water Ediacaran ocean: Evidence from carbonates at Xiaofenghe, Three Gorges area, Yangtze Platform, South ChinaSimon V. Hohl, Harry Becker, Antonia Gamper, Shao‐Yong Jiang, Uwe Wiechert, Jinghong Yang, Hai–Zhen Wei · 2015 · Precambrian Research
- Environmental, trophic, and ecological factors influencing bone collagen δ2HKatarina Topalov, Arndt Schimmelmann, Paul David Polly, Peter E. Sauer, Mark S. Lowry · 2012 · Geochimica et Cosmochimica Acta
- Simple ways to calculate stable isotope discrimination factors and convert between tissue typesAmanda Louise Greer, Travis W. Horton, Ximena J. Nelson · 2015 · Methods in Ecology and Evolution
- Mitigating N2O emissions from clover residues by 3,4-dimethylpyrazole phosphate (DMPP) without adverse effects on the earthworm Lumbricus terrestrisXianwang Kong, Yun‐Feng Duan, Andreas Schramm, Jørgen Eriksen, Martin Holmstrup, Thomas Larsen, Roland A. Bol, Søren Ole Petersen · 2016 · Soil Biology and Biochemistry
- Validation of GC–IRMS techniques for δ13C and δ2H CSIA of organophosphorus compounds and their potential for studying the mode of hydrolysis in the environmentLangping Wu, Steffen Kümmel, Hans Hermann Richnow · 2017 · Analytical and Bioanalytical Chemistry
- Oxygen isotope–salinity relationships of discrete oceanic regions from India to Antarctica vis-à-vis surface hydrological processesManish Tiwari, Siddhesh S. Nagoji, Thammisetti Kartik, G. Drishya, R.K. Parvathy, Sivaramakrishnan Rajan · 2013 · Journal of Marine Systems
- Stable Isotope Forensics as an Investigative Tool in Missing Persons InvestigationsEric J. Bartelink, Amy T. MacKinnon, Julia Prince-Buitenhuys, Brett James Tipple, Lesley Ann Chesson · 2016 · Springer eBooks
- Geochemistry of Ediacaran cap dolostones across the Yangtze Platform, South China: implications for diagenetic modification and seawater chemistry in the aftermath of the Marinoan glaciationSimon V. Hohl, Harry Becker, Shao‐Yong Jiang, Hong‐Fei Ling, Qingjun Guo, Ulrich Struck · 2017 · Journal of the Geological Society
- Petrographical and organic geochemical study of the lignite from the Smederevsko Pomoravlje field (Kostolac Basin, Serbia)Nataša Đoković, Danica Mitrović, Dragana R. Životić, Achim Bechtel, Reinhard F. Sachsenhofer, Vesna Matić, Lidija Glamočanin, Ksenija Stojanović · 2018 · International Journal of Coal Geology
- On-line in situ determination of deuterium content in water via FTIR spectroscopyIra Litvak, Yaakov Anker, Haim Cohen · 2018 · RSC Advances
- Seasonality in the Δ 33 S measured in urban aerosols highlights an additional oxidation pathway for atmospheric SO 2David Au Yang, Pierre Cartigny, Karine Desboeufs, David Wîdory · 2019 · Atmospheric chemistry and physics
- ISO-FOOD ontology: A formal representation of the knowledge within the domain of isotopes for food scienceTome Eftimov, Gordana Ispirova, Doris Potočnik, Nives Ogrinc, Barbara Koroušić Seljak · 2018 · Food Chemistry
- Niche Partitioning in Theropod Dinosaurs: Diet and Habitat Preference in Predators from the Uppermost Cedar Mountain Formation (Utah, U.S.A.)Joseph A. Frederickson, Michael H. Engel, Richard L. Cifelli · 2018 · Scientific Reports
- Two‐dimensional gas chromatography with heart‐cutting for isotope ratio mass spectrometry analysis of steroids in doping controlAlan D. Brailsford, Ivana Gavrilović, R. J. Ansell · 2012 · Drug Testing and Analysis
- Stable and radiogenic isotopes as indicators of agri-food provenance: Insights from artisanal cheeses from Quebec, CanadaRoss K. Stevenson, Stéphanie L. Desrochers, Jean‐François Hélie · 2015 · International Dairy Journal
- Stable isotopes reveal rail-associated behavior in a threatened carnivoreJohn B. Hopkins, Jesse Whittington, Anthony Paul Clevenger, Michael A. Sawaya, Colleen Cassady St. Clair · 2014 · Isotopes in Environmental and Health Studies
- Carbon isotope variation in shrub willow (Salix spp.) ring-wood as an indicator of long-term water status, growth and survivalL. A. Schifman, John C. Stella, Timothy A. Volk, Mark A. Teece · 2011 · Biomass and Bioenergy
- Categorisation of northern California rainfall for periods with and without a radar brightband using stable isotopes and a novel automated precipitation collectorTyler B. Coplen, Paul J. Neiman, Allen B. White · 2015 · Tellus B
- Response ofQuercus velutinagrowth and water use efficiency to climate variability and nitrogen fertilization in a temperate deciduous forest in the northeastern USAKatie A. Jennings, Rossella Guerrieri, Matthew A. Vadeboncoeur, Heidi Asbjornsen · 2016 · Tree Physiology
- Temporal variations in the δD of leaf n-alkanes from four riparian plant speciesAbigail M. Oakes, Michael T. Hren · 2016 · Organic Geochemistry
- Carbon and hydrogen isotope analysis of parathion for characterizing its natural attenuation by hydrolysis at a contaminated siteLangping Wu, Dipti Verma, Morten Bondgaard · 2018 · Water Research
- Metrological tools for the reference materials and reference instruments of the NIST Material Measurement LaboratoryCarlos Beauchamp, Johanna Eltz Camara, Jennifer Carney et al. · 2021
- Spatiotemporal patterns of stable isotopes and hydrochemistry in springs and river flow of the upper Karkheh River Basin, IranKhaled Osati, Paul Koeniger, Ali Salajegheh · 2014 · Isotopes in Environmental and Health Studies
- Methane and carbon dioxide emissions from thermokarst lakes on mineral soilsAlex Matveev, Isabelle Laurion, Warwick F. Vincent · 2018 · Arctic Science
- Isotopic-Spectroscopic Technique: Stable Isotope-Ratio Mass Spectrometry (IRMS)Simon Douglas Kelly, Christopher R. Brodie, Andreas W. Hilkert · 2018 · Elsevier eBooks
- Carbon and nitrogen isotopic variability in foxtail millet ( Setaria italica ) with watering regimeEmma Lightfoot, M. Cemre Üstünkaya, Natalia A. S. Przelomska, Tamsin C. O’Connell, Harriet V. Hunt, Martin K. Jones, Cameron A. Petrie · 2019 · Rapid Communications in Mass Spectrometry
- Lacustrine environmental evolution and implications on source rock deposition in the Upper Cretaceous-Paleocene of the South Yellow Sea Basin, offshore eastern ChinaYu Song, Shouzhi Hu, Jianyong Xu, Chuanbo Shen, Shuifu Li, Peng Su, Wenquan Xie · 2019 · Marine and Petroleum Geology
- Sink strength of citrus rootstocks under water deficitSimone Ferreira da Silva, Marcela T. Miranda, Vladimir Eliodoro Costa · 2021 · Tree Physiology
- Benchmarking the simulation of Cr isotope fractionationChristoph Wanner, Jennifer L. Druhan, Richard T. Amos · 2014 · Computational Geosciences
- Distribution of methane and carbon dioxide concentrations in the near-surface zone and their genetic characterization at the abandoned “Nowa Ruda” coal mine (Lower Silesian Coal Basin, SW Poland)Henryk Sechman, Maciej J. Kotarba, Janusz Fiszer · 2013 · International Journal of Coal Geology
- Petrographical and organic geochemical study of the Kovin lignite deposit, SerbiaDanica Mitrović, Nataša Đoković, Dragana R. Životić, Achim Bechtel, Aleksandra Šajnović, Ksenija Stojanović · 2016 · International Journal of Coal Geology
- Thule whaling at Point Barrow, Alaska: The Nuvuk cemetery stable isotope and radiocarbon recordJoan Brenner Coltrain, Justin C. Tackney, Dennis H. O’Rourke · 2016 · Journal of Archaeological Science Reports
- Above- and belowground nitrogen distribution of a red clover-perennial ryegrass sward along a soil nutrient availability gradient established by organic and conventional cropping systemsAndreas Hammelehle, Astrid Oberson, ANDREAS LÜSCHER, Paul M. Mader, Jochen Mayer · 2018 · Plant and Soil
- Genotype-by-environment interaction for grain yield and quality traits in durum wheat: Identification of ideotypes adapted to the Spanish region of Castile and LeónRaquel Martínez‐Peña, Fatima Zahra Rezzouk, Maria Carmen Diez–Fraile, M. T. Nieto‐Taladriz, J. L. Araus, Nieves Aparicio, Rubén Vicente · 2023 · European Journal of Agronomy
- Coupling experimental and field-based approaches to decipher carbon sources in the shell of the great scallop, Pecten maximus (L.)Violette Marchais, Joëlle JR Richard, Aurélie Jolivet · 2015 · Geochimica et Cosmochimica Acta
- Stable isotopes of precipitation and spring waters reveal an altitude effect in the Anti-Lebanon Mountains, SyriaPaul Koeniger, Mathias Toll, Thomas Himmelsbach · 2016 · Hydrological Processes
- Sources and sinks of nutrients and organic carbon during the 2014 pulse flow of the Colorado River into MexicoLuis Walter Daesslé, A. Orozco, Ulrich Struck · 2016 · Ecological Engineering
- A new instrument for stable isotope measurements of 13 C and 18 O in CO 2 – instrument performance and ecological application of the Delta Ray IRIS analyzerJelka Braden-Behrens, Yuan Yan, Alexander Knohl · 2017 · Atmospheric measurement techniques
- Control of tillage disturbance on the chemistry and proportion of raindrop-liberated particles from soil aggregatesTingyu Hou, Timothy D. Berry, Sarmistha Singh, M. N. Hughes, Yanan Tong, Athanasios N. Papanicolaou, Kenneth M. Wacha, Christopher G. Wilson, Indrajeet Chaubey, T. R. Filley · 2018 · Geoderma
- Zooplankton Taxonomic and Trophic Community Structure Across Biogeochemical Regions in the Eastern South PacificCarolina E. González, Rubén Escribano, Antonio Bode, Wolfgang Schneider · 2019 · Frontiers in Marine Science
- Use of nitrogen and oxygen isotopes of dissolved nitrate to trace field-scale induced denitrification efficiency throughout an in-situ groundwater remediation strategyRosanna Margalef-Martí, Raúl Carrey, Marta Viladés · 2019 · The Science of The Total Environment
- Use of Water Isotopes in Hydrological ProcessesPolona Vreča, Zoltán Kern · 2020 · Water
- Geographic variability in freshwater methane hydrogen isotope ratios and its implications for global isotopic source signaturesPeter M.J. Douglas, Emerald Stratigopoulos, Sanga Park · 2021 · Biogeosciences
- Understanding processing, maturity and harvest period effects to authenticate early-spring Longjing tea using stable isotopes and chemometric analysesWei Xia, Zuguang Li, Chongchong Yu · 2021 · Food Control
- Agronomic performance, nitrogen acquisition and water-use efficiency of the perennial grain crop Thinopyrum intermedium in a monoculture and intercropped with alfalfa in ScandinaviaLinda-Maria Dimitrova Mårtensson, Ana Barreiro, Shoujiao Li, Erik Steen Jensen · 2022 · Agronomy for Sustainable Development
- Neighbourhood species richness and drought‐tolerance traits modulate tree growth and δ 13 C responses to droughtFlorian Schnabel, Kathryn E. Barry, Sabine Eckhardt, Joannès Guillemot, Heike Geilmann, Anja Kahl, Heiko Moossen, Jürgen Bauhus, Christian Wirth · 2024 · Plant Biology
- More than a century of Grain for Green Program is expected to restore soil carbon stock on alpine grassland revealed by field 13 C pulse labelingQi Li, Dongdong Chen, Liang Zhao, Xue Qin Yang, Shixiao Xu, Xinquan Zhao · 2016 · The Science of The Total Environment
- Similar levels of trophic and functional diversity within damselfish assemblages across Indo‐Pacific coral reefsLaura Gajdzik, Éric Parmentier, Loïc N. Michel, Nicolas Sturaro, Keryea Soong, Gilles Lepoint, Bruno Frédérich · 2018 · Functional Ecology
- Microbial Methane From Methylphosphonate Isotopically Records SourceL. Taenzer, P. Carini, A. M. Masterson, B. Bourque, J. H. Gaube, William D. Leavitt · 2020 · Geophysical Research Letters
- Partitioning NEE for absolute C input into various ecosystem pools by combining results from eddy-covariance, atmospheric flux partitioning and 13CO2 pulse labelingMichael Riederer, Johanna Pausch, Yakov V. Kuzyakov · 2015 · Plant and Soil
- Stable Isotopes in Greenhouse Gases from Soil: A Review of Theory and ApplicationXiao-Cong Zhu, Dongrui Di, Mingguo Ma, Weiyu Shi · 2019 · Atmosphere
- Temporal and Vertical Oxygen Gradients Modulate Nitrous Oxide Production in a Seasonally Anoxic Fjord: Saanich Inlet, British ColumbiaQixing Ji, Brett D. Jameson, S. Kim Juniper · 2020 · Journal of Geophysical Research Biogeosciences
- Molybdenum isotope fractionation at upper-crustal magmatic-hydrothermal conditionsAnne K.C. Kaufmann, Thomas Pettke, Martin Wille · 2021 · Chemical Geology
- Quantifying biotic and abiotic Si fluxes in the Critical Zone with Ge/Si ratios along a gradient of erosion ratesPatrick J. Frings, Franziska Schubring, Marcus Oelze · 2021 · American Journal of Science