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Metal Speciation in Water of the Flooded Mine “Arsenic” (Karelia, Russia): Equilibrium-Kinetic Modeling with a Focus on the Influence of Humic Substances Aquat. Geochem. (IF 1.103) Pub Date : 2021-02-18 Elena V. Cherkasova, Artem A. Konyshev, Evgeniya A. Soldatova, Evgeniya S. Sidkina, Mikhail V. Mironenko
Equilibrium-kinetic modeling allows investigating metal behavior in the water–rock-organic matter system with time to evaluate anthropogenic effects on the environment. In the article, the interactions of stagnant mine drainage water of the flooded mine “Arsenic” with ore and gangue minerals were simulated using different organic matter incorporation approaches. If the model is closed to humic substances
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Free Eu(III) Determination by Donnan Membrane Technique with Electrochemical Detection: Implementation and Evaluation Aquat. Geochem. (IF 1.103) Pub Date : 2021-02-17 Noémie Janot, Jan E. Groenenberg, Alba Otero-Fariña, José Paulo Pinheiro
The aim of this study was to develop an analytical method to determine free concentrations of Europium (Eu(III)) in natural waters. Europium(III) in solution was detected using cathodic stripping voltammetry after complexation with N-nitroso-N-phenylhydroxylamine (cupferron). Optimization of analytical parameters allowed us to detect nanomolar levels of Eu(III) in solution. Free Eu(III) in solution
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Concentration of Iron(II) in Fresh Groundwater Controlled by Siderite, Field Evidence Aquat. Geochem. (IF 1.103) Pub Date : 2021-01-03 C. G. E. M. van Beek, D. G. Cirkel, M. J. de Jonge, N. Hartog
Iron(II) concentrations in fresh groundwater in Dutch aquifers range from absent up to 50 mg/l. Evaluation of extensive chemical data sets learned that the maximum logarithmic concentration of iron(II) in aquifers, between ± 6.5 < pH < ± 8, is a linear function of pH, governed by Siderite. It is a broad relation due to oversaturation with respect to Siderite and to variation in alkalinity. Iron(II)
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Experimental and Modeling Studies on Sorption Behaviour of 133 Ba(II) on Fe–Montmorillonite Clay Minerals Aquat. Geochem. (IF 1.103) Pub Date : 2020-09-11 Santosh Chikkamath, Madhuri A. Patel, Aishwarya S. Kar, Vaibhavi V. Raut, Bhupendra. S. Tomar, J. Manjanna
Fe type clay minerals, Fe–montmorillonite, are expected to form in the nuclear waste repositories over a span of few years owing to the interaction of corrosion products from overpack and/or canister with bentonite consisting of montmorillonite (Mt) as the major clay mineral. Therefore, it is important to understand the properties of altered clay minerals, Fe–Mt. In the present study, the sorption
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Climate Change-Induced Changes in the Chemistry of a High-Altitude Mountain Lake in the Central Alps Aquat. Geochem. (IF 1.103) Pub Date : 2020-08-18 Sandra M. Steingruber, Stefano M. Bernasconi, Giorgio Valenti
Mountains are among the most sensitive ecosystems to climate change, and one of the most evident signs of climate-related effect is the continuous net loss of ice from the cryosphere. Several studies showed that meltwater from glaciated and perennially frozen areas can profoundly affect alpine aquatic ecosystems. Here, we present the impressive temporal increase in solutes in Lake Leit, a mountain
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Correction to: Ultra-trace Element Characterization of the Central Ottawa River Basin Using a Rapid, Flexible, and Low-Volume ICP-MS Method Aquat. Geochem. (IF 1.103) Pub Date : 2020-07-28 Michael G. Babechuk, Edel M. O’Sullivan, Cora A. McKenna, Carolina Rosca, Thomas F. Nägler, Ronny Schoenberg, Balz S. Kamber
In the original publication of the article, the content under the section heading has been published incorrectly. Now the same has been corrected in this correction.
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Effects of Bioirrigation and Salinity on Arsenic Distributions in Ferruginous Concretions from Salt Marsh Sediment Cores (Southern Brazil) Aquat. Geochem. (IF 1.103) Pub Date : 2020-07-17 Larissa Costa, Nicolai Mirlean, Guilherme Quintana, Segun Adebayo, Karen Johannesson
Arsenic (As), iron (Fe), and manganese (Mn) contents were measured in sediment nodules and associated pore waters obtained from sediment cores collected from a salt marsh on Pólvora Island (southern Brazil). Sediment cores were obtained when brackish water dominated the estuary, at two different environments: an unvegetated mudflat colonized by crabs (Neohelice granulata), and a low intertidal stand
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Correction to: The Effect of Bacterial Sulfate Reduction Inhibition on the Production and Stable Isotopic Composition of Methane in Hypersaline Environments Aquat. Geochem. (IF 1.103) Pub Date : 2020-07-10 Cheryl A. Kelley, Brad M. Bebout, Jeffrey P. Chanton, Angela M. Detweiler, Adrienne Frisbee, Brooke E. Nicholson, Jennifer Poole, Amanda Tazaz, Claire Winkler
For reason beyond the control of the authors or the editors, the article.
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Correction to: Colloidal Organic Matter and Metal(loid)s in Coastal Waters (Gulf of Trieste, Northern Adriatic Sea) Aquat. Geochem. (IF 1.103) Pub Date : 2020-07-10 Katja Klun, Ingrid Falnoga, Darja Mazej, Primož Šket, Jadran Faganeli
For reason beyond the control of the authors or the editors, the article titled “Colloidal Organic Matter and Metal(loid)s in Coastal Waters (Gulf of Trieste, Northern Adriatic Sea)” by Katja Klun1 · Ingrid Falnoga2 · Darja Mazej2 · Primož Šket3 · Jadran Faganeli1 (https://doi.org/10.1007/s10498-019-09359-6) was published in the regular issue Vol. 25 issue 5-6 instead of this special section, where
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Stable Carbon Isotopes δ 13 C as a Proxy for Characterizing Carbon Sources and Processes in a Small Tropical Headwater Catchment: Nsimi, Cameroon Aquat. Geochem. (IF 1.103) Pub Date : 2020-07-01 Gustave Raoul Nkoue Ndondo, J.-L. Probst, J. Ndjama, Jules Remy Ndam Ngoupayou, J.-L. Boeglin, G. E. Takem, F. Brunet, J. Mortatti, F. Gauthier-Lafaye, J.-J. Braun, G. E. Ekodeck
Stream carbon fluxes are one of the major components in the global C cycle, yet the discrimination of the various sources of stream carbon remains to a large extent unclear and less is known about the biogeochemical transformations that accompany the transfer of C from soils to streams. Here, we used patterns in stream water and groundwater δ13C values in a small forested tropical headwater catchment
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Kinetics of Thiocyanate Formation by Reaction of Cyanide with Tetrathionate Aquat. Geochem. (IF 1.103) Pub Date : 2020-06-29 Irina Kurashova, Alexey Kamyshny
In aquatic systems a reaction between tetrathionate and cyanide results in the formation of thiocyanate. We have studied kinetics of the reactions of tetrathionate with free cyanide and two cyanide complexes, hexacyanoferrate(II) and hexacyanoferrate(III), at the environmentally relevant conditions. For the reaction between tetrathionate and free cyanide, the rate constant and the activation energy
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Hydrogeochemical Conditions in Groundwater Systems with Various Geomorphological Units in Kulonprogo Regency, Java Island, Indonesia Aquat. Geochem. (IF 1.103) Pub Date : 2020-06-24 Reinaldy Pratama Poetra, Tjahyo Nugroho Adji, Langgeng Wahyu Santosa, Nurul Khakhim
Geomorphological (landform) aspects have long been known to control groundwater conditions in an area. Thus, combining the hydrogeological and geomorphological aspects (lithology, genesis, and morphology) becomes a prospective approach for understanding and delineating the hydrogeochemical processes in an area. The idea is then applied in Kulonprogo, Java, Indonesia, that consists of several landforms
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Influence of CO 2 on Water Chemistry and Bacterial Community Structure and Diversity: An Experimental Study in the Laboratory Aquat. Geochem. (IF 1.103) Pub Date : 2020-06-22 Hongying Zhang, Zongjun Gao, Mengjie Shi, Shaoyan Fang
As the second largest carbon pool, soil has a high CO2 content, and it has an important impact on water–rock interactions and the bacterial community structure and diversity in soils. In this paper, three sets of laboratory simulation experiments under six levels of partial pressure CO2 (pCO2) conditions were used to analyze and study the CO2–water–rock interactions and the bacterial community structure
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Porewater Carbonate Chemistry Dynamics in a Temperate and a Subtropical Seagrass System Aquat. Geochem. (IF 1.103) Pub Date : 2020-05-16 Theodor Kindeberg, Nicholas R. Bates, Travis A. Courtney, Tyler Cyronak, Alyssa Griffin, Fred T. Mackenzie, May-Linn Paulsen, Andreas J. Andersson
Seagrass systems are integral components of both local and global carbon cycles and can substantially modify seawater biogeochemistry, which has ecological ramifications. However, the influence of seagrass on porewater biogeochemistry has not been fully described, and the exact role of this marine macrophyte and associated microbial communities in the modification of porewater chemistry remains equivocal
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Chemical Weathering in Small Mountainous Rivers of Southern Italy and Northern Spain Aquat. Geochem. (IF 1.103) Pub Date : 2020-05-13 Anne E. Carey; Julia M. Young; Susan A. Welch; Kathleen A. Welch; Christopher B. Gardner; W. Berry Lyons
Since the seminal work of Milliman and Syvitski (J Geol 100:525–544, 1992), there has been interest in evaluating the significance of small mountainous river (SMRs) systems and their role in the transport of both solutes, and especially sediments, to the world ocean. Although some data exist from portions of the Earth’s mountainous regions, the majority of this work has been focused in the western
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Ultra-trace Element Characterization of the Central Ottawa River Basin using a Rapid, Flexible, and Low-volume ICP-MS Method Aquat. Geochem. (IF 1.103) Pub Date : 2020-05-05 Michael G. Babechuk, Edel M. O’Sullivan, Cora A. McKenna, Carolina Rosca, Thomas F. Nägler, Ronny Schoenberg, Balz S. Kamber
Ultra-trace (< 1 ng g−1) rare earth elements and yttrium (REE + Y) and high field strength element (HFSE) geochemistry of freshwater can constrain element sources, aqueous processes in hydrologic catchments, and the signature of dissolved terrestrial fluxes to the oceans. This study details an adapted method capable of quantifying ≥ 38 elements (including all REE + Y, Nb, Ta, Zr, Hf, Mo, W, Th, U)
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Octanol–Water Partition Coefficients of Aristolochic Acids and Implications to the Etiology of Balkan Endemic Nephropathy Aquat. Geochem. (IF 1.103) Pub Date : 2020-05-05 Chaiyanun Tangtong; Lulu Qiao; David T. Long; Thomas C. Voice
The octanol–water partition coefficients (Kow) of the aristolochic acids, AA I and AA II, were determined using the traditional shake-flask method as a function of pH and ionic strength. These compounds have been implicated in the etiology of Balkan endemic nephropathy, but evidence of a plausible exposure pathway remains elusive, and research is constrained by the absence of critical physical–chemical
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Seasonal and Spatial Variations of Chemical Weathering in the Mekong Basin: From the Headwaters to the Lower Reaches Aquat. Geochem. (IF 1.103) Pub Date : 2020-04-23 Hiroto Kajita; Yuki Ota; Toshihiro Yoshimura; Daisuke Araoka; Takuya Manaka; Ouyang Ziyu; Shinya Iwasaki; Takuya Yanase; Akihiko Inamura; Etsuo Uchida; Hongbo Zheng; Qing Yang; Ke Wang; Atsushi Suzuki; Hodaka Kawahata
Chemical weathering in the Himalayan river basins is among the highest in the world and has received vast research attention related to past climate change. Many early estimates of chemical weathering are based on a small number of water property data that ignore those spatial and seasonal variations. Therefore, this study analyzed spatial and seasonal variations in chemical weathering in the Mekong
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Effect of Organic Alkalinity on Seawater Buffer Capacity: A Numerical Exploration Aquat. Geochem. (IF 1.103) Pub Date : 2020-04-20 Xinping Hu
Organic alkalinity is a poorly understood component of total titration alkalinity in aquatic environments. Using a numerical method, the effects of organic acid (HOA) and its conjugate base (OA−) on seawater carbonate chemistry and buffer behaviors, as well as those in a hypothetical estuarine mixing zone, are explored under both closed- and open-system conditions. The simulation results show that
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The Effects of pH, Temperature, and Humic-Like Substances on Anaerobic Carbon Degradation and Methanogenesis in Ombrotrophic and Minerotrophic Alaskan Peatlands Aquat. Geochem. (IF 1.103) Pub Date : 2020-04-06 Lin Zhang; Xiao Liu; Khrys Duddleston; Mark E. Hines
Methane production usually increases from the acidic sphagnum-dominated ombrotrophic peatlands to minerotrophic ones with more neutral pH and higher coverage of vascular plants. Along this ombrotrophic–minerotrophic gradient, pH, microbial communities, and properties of dissolved organic matter in porewater all vary greatly. The hydrographic change resulted from permafrost thaw and projected global
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The Role of a Tidal Flat–Saltmarsh System as a Source–Sink of Mercury in a Contaminated Coastal Lagoon Environment (Northern Adriatic Sea) Aquat. Geochem. (IF 1.103) Pub Date : 2020-04-06 Elisa Petranich; Luca Terribili; Alessandro Acquavita; Elena Pavoni; Leonardo Langone; Stefano Covelli
The Marano and Grado Lagoon (northern Adriatic Sea, Italy) is contaminated mainly by mercury (Hg) of mining and industrial origin. This work aims to investigate the sedimentary records of Hg of a tidal flat–saltmarsh (TF–S) system and to understand the role played by tidal fluxes in terms of the transport, accumulation and release of Hg due to the periodic flow of the tide. The complex history of the
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Radium Isotopes as a Tracer of Water Sources and Mixing in the Vidourle Stream (South of France) Aquat. Geochem. (IF 1.103) Pub Date : 2020-03-11 Arnold Molina-Porras; Michel Condomines; Pierre-Louis Legeay; Vincent Bailly-Comte; Jean Luc Seidel
This study reports analyses of Ra isotopes in a Mediterranean stream, the Vidourle river, whose upper course drains the granitic and metamorphic basement of the SE part of the French Massif Central (Cévennes) and then flows through the karstified carbonates of Jurassic and Cretaceous ages. In these low-Ra waters (226Ra activities range from 1.5 to 4.9 mBq/L), all four Ra isotopes were successfully
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Ecosystem-Scale Modeling and Field Observations of Sulfate and Methylmercury Distributions in the Florida Everglades: Responses to Reductions in Sulfate Loading Aquat. Geochem. (IF 1.103) Pub Date : 2020-02-15 William H. Orem; Carl Fitz; David P. Krabbenhoft; Brett A. Poulin; Matthew S. Varonka; George R. Aiken
The Florida Everglades has one of the most severe methylmercury (MeHg) contamination issues in the USA, resulting from factors including high rates of atmospheric mercury (Hg) deposition and sulfate inputs from agricultural lands. Sulfate loading stimulates microbial sulfate reduction and production of toxic and bioaccumulative MeHg. Controls on regional Hg emissions have been successful in reducing
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Incorporation of Rare Earths and Yttrium in Calcite: A Critical Re-evaluation Aquat. Geochem. (IF 1.103) Pub Date : 2020-02-12 Peter Möller; Marco De Lucia
The reported partition coefficients of REE with calcite are reviewed and critically discussed. In some of the reported experimental sets, REE concentrations are found to be supersaturated with respect to individual REE2(CO3)3 but never to REE(OH)3. Although the solutions are unsaturated with respect to individual REY carbonates, REY including Y are incorporated in calcite surfaces, where they are overgrown
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Characterizing Soil Dissolved Organic Matter in Typical Soils from China Using Fluorescence EEM–PARAFAC and UV–Visible Absorption Aquat. Geochem. (IF 1.103) Pub Date : 2020-01-02 Xiao-quan Qin; Bo Yao; Liang Jin; Xiang-zhou Zheng; Jie Ma; Marc F. Benedetti; Yongtao Li; Zong-ling Ren
Dissolved organic matter (DOM) strongly participates in a variety of critical environmental and ecological processes and has a large impact on environmental quality. In this study, ultraviolet–visible absorbance spectroscopy and excitation–emission matrices of fluorescence spectroscopy in combination with parallel factor analysis (EEMs–PARAFAC) were applied to characterize a total of 92 DOM samples
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Mineral Magnetic and Geochemical Mapping of the Wular Lake Sediments, Kashmir Valley, NW Himalaya Aquat. Geochem. (IF 1.103) Pub Date : 2019-12-13 Rayees A. Shah; Hema Achyuthan; Satish J. Sangode; Aasif M. Lone; Mohammd Rafiq
This study presents major element geochemistry, mineral magnetism and textural analysis of lake-bottom sediments collected from the Wular Lake located in the Kashmir Valley (northwest Himalaya). Connected to the Jhelum River, Wular Lake basin occupies ~ 75% watershed area of the valley, covering ~ 10,196 km2, and makes it the major depo-centre for Kashmir Valley. The sediments represent dominant silt
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Geochemical Behavior of REE in Stream Water and Sediments in the Gold-Bearing Lom Basin, Cameroon: Implications for Provenance and Depositional Environment Aquat. Geochem. (IF 1.103) Pub Date : 2019-12-13 Mumbfu Ernestine Mimba; Mengnjo Jude Wirmvem; Salomon César Nguemhe Fils; Nozomi Numanami; Melvin Tamnta Nforba; Takeshi Ohba; Festus Tongwa Aka; Cheo Emmanuel Suh
Stream water and associated bottom sediments were sampled within the Lom Basin, and their rare earth element (REE) concentrations have been used to decipher their provenance and environment of deposition. Stream waters in the lower Lom Basin have variable Post Archean Australian Shale-normalized REE concentrations (0.24–4978 ng/l), positive Ce anomalies (Ce/Ce* ranges from 1.08 to 8.03), a general
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Geochemistry of the Lake Chad Tributaries Under Strongly Varying Hydro-climatic Conditions Aquat. Geochem. (IF 1.103) Pub Date : 2019-11-29 A. Mahamat Nour; C. Vallet-Coulomb; C. Bouchez; P. Ginot; J. C. Doumnang; F. Sylvestre; P. Deschamps
The Lake Chad Basin (LCB) is one of the main endorheic basins in the world and has undergone large-level and surface variations during the last decades, particularly during the Sahelian dry period in the 1970s and the 1980s. The Chari–Logone River system covers 25% of the LCB but accounts for up to 82% of the Lake Chad water supply. The aim of this study is to investigate the dissolved phase transported
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The Effect of Bacterial Sulfate Reduction Inhibition on the Production and Stable Isotopic Composition of Methane in Hypersaline Environments Aquat. Geochem. (IF 1.103) Pub Date : 2019-11-19 Cheryl A. Kelley; Brad M. Bebout; Jeffrey P. Chanton; Angela M. Detweiler; Adrienne Frisbee; Brooke E. Nicholson; Jennifer Poole; Amanda Tazaz; Claire Winkler
The aim of this research was to investigate the competition between methanogens and sulfate-reducing bacteria in hypersaline environments. Samples of photosynthetic microbial mats, both soft mats (salinities of 55–126 ppt) and gypsum-hosted endoevaporite mats (salinities of 77–320 ppt), were obtained from hypersaline environments in California, USA, Mexico and Chile. Methane production was determined
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Kinetics of Thiocyanate Formation by Reaction of Cyanide and Its Iron Complexes with Thiosulfate Aquat. Geochem. (IF 1.103) Pub Date : 2019-11-07 Irina Kurashova; Alexey Kamyshny
Reactions between cyanide and compounds, which contain S–S bonds, in aqueous media result in formation of thiocyanate. In this work, we studied the kinetics of reactions of thiosulfate with free cyanide and its complexes under environmental conditions. Rates of reactions between cyanide species and thiosulfate decrease in the following order: CN− > HCN > [Fe(CN)6]3− > [Fe(CN)6]4−. However, at neutral
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The Stability of Fe-Isotope Signatures During Low Salinity Mixing in Subarctic Estuaries Aquat. Geochem. (IF 1.103) Pub Date : 2019-11-06 Sarah Conrad; Kathrin Wuttig; Nils Jansen; Ilia Rodushkin; Johan Ingri
We have studied iron (Fe)-isotope signals in particles (> 0.22 µm) and the dissolved phase (< 0.22 µm) in two subarctic, boreal rivers, their estuaries and the adjacent sea in northern Sweden. Both rivers, the Råne and the Kalix, are enriched in Fe and organic carbon (up to 29 µmol/L and up to 730 µmol/L, respectively). Observed changes in the particulate and dissolved phase during spring flood in
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An Integrated Novel Approach to Understand the Process of Groundwater Recharge in Mountain and Riparian Zone Aquifer System of Tamil Nadu, India Aquat. Geochem. (IF 1.103) Pub Date : 2019-10-11 Banajarani Panda; S. Chidambaram; K. Tirumalesh; N. Ganesh; C. Thivya; R. Thilagavathi; S. Venkatramanan; M. V. Prasanna; N. Devaraj; A. L. Ramanathan
The nature of groundwater recharge along the mountain front (MF) and riparian zone (RZ) was discerned by multiple tools involving rain/water level relationship, geophysical of subsurface, seasonal hydrochemistry and environmental isotopic signatures. The proposed study has been carried out in Courtallam Hills, the north-western part of Tirunelveli District, South India. The study area is a hilly terrain
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Colloidal Organic Matter and Metal(loid)s in Coastal Waters (Gulf of Trieste, Northern Adriatic Sea) Aquat. Geochem. (IF 1.103) Pub Date : 2019-10-03 Katja Klun; Ingrid Falnoga; Darja Mazej; Primož Šket; Jadran Faganeli
Large volumes of seawater were sampled in the Gulf of Trieste (northern Adriatic Sea) in order to study the interactions between colloidal organic matter (COM) and metal(loid)s (Me) in coastal waters. COM (> 5 kDa) was isolated by ultrafiltration and characterized using 1H NMR spectroscopy and elemental Corg. and Ntot. analyses. COM in the gulf represents about one quarter of the dissolved organic
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The Sources of Organic Matter in Seagrass Sediments and Their Contribution to Carbon Stocks in the Spermonde Islands, Indonesia Aquat. Geochem. (IF 1.103) Pub Date : 2019-09-21 Yusmiana P. Rahayu; Tubagus Solihuddin; Mariska A. Kusumaningtyas; Restu Nur Afi Ati; Hadiwijaya L. Salim; Tim Rixen; Andreas A. Hutahaean
Seagrass ecosystems have a potential role in climate change mitigation due to their ability to store high amount of carbon, particularly in the sediment. Studying the factors and mechanisms responsible for this storing capacity is essential to understand seagrass carbon sink function. Therefore, in this study, we identified the sources of organic carbon (Corg) in seagrass sediments and the implication
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Tufa Deposition Dynamics in a Freshwater Karstic Stream Influenced by Warm Springs Aquat. Geochem. (IF 1.103) Pub Date : 2019-08-19 Dorothy J. Vesper; Johnathan E. Moore; Harry M. Edenborn
Sweet Springs Creek, located in the Valley and Ridge Province of the Appalachian Mountains in southeastern West Virginia and southwestern Virginia, USA, contains major fluvial tufa formations at the sites of localized fractures and faults. Sweet Springs Creek receives input from higher-temperature thermal springs of lower pH and higher sulfate concentration that differ significantly in chemical composition
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Multicomponent Versus Classical Geothermometry: Applicability of Both Geothermometers in a Medium-Enthalpy Geothermal System in India Aquat. Geochem. (IF 1.103) Pub Date : 2019-08-09 Sitangshu Chatterjee; U. K. Sinha; B. P. Biswal; Ajay Jaryal; Suraj Patbhaje; Ashutosh Dash
The Manuguru geothermal area, located in the Khammam district of Telangana state, India, is one of the least explored medium-enthalpy geothermal systems in India. In this study, subsurface reservoir temperature was estimated by applying various methodologies such as chemical geothermometry, multicomponent geothermometry and mixing models. Chemical geothermometers provided wide range in temperature
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Isotopic Composition and Origin of Sulfide and Sulfate Species of Sulfur in Thermal Waters of Jiangxi Province (China) Aquat. Geochem. (IF 1.103) Pub Date : 2019-06-13 Svetlana V. Borzenko; Elena V. Zippa
The reduced sulfur species, sulfide, elemental and thiosulfate were considered in the thermal waters of Jiangxi Province for the first time. It is shown that the sulfur speciation content significantly varies and depends on the pH values. The major part of reduced sulfur refers to sulfide species in the nitric thermal waters, to elemental—in the carbon dioxide thermal waters. The presence of both reduced
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An Integrated Isotope-Geochemical Approach to Characterize a Medium Enthalpy Geothermal System in India Aquat. Geochem. (IF 1.103) Pub Date : 2019-04-26 Sitangshu Chatterjee; Uday K. Sinha; Bishnu P. Biswal; Ajay Jaryal; Pankaj K. Jain; Suraj Patbhaje; Ashutosh Dash
The Manuguru geothermal area, situated in the Telangana state, is one of the least explored geothermal fields in India. In this study, the chemical characteristics of the groundwater (thermal and non-thermal waters) are investigated to elucidate the source of the solutes dissolved in the water and to determine the approximate residence time of the thermal waters. The major hydrogeochemical processes
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Geochemistry of Chilean Rivers Within the Central Zone: Distinguishing the Impact of Mining, Lithology and Physical Weathering Aquat. Geochem. (IF 1.103) Pub Date : 2019-03-20 J. Viers; S. Carretier; Y. Auda; O. S. Pokrovsky; P. Seyler; F. Chabaux; V. Regard; V. Tolorza; G. Herail
Several rivers of Chile from the latitude 30°–38° have been sampled during a stable anticyclonic period (October 2008). Firstly, our aim was to evaluate the dissolved chemical composition (major and trace elements) of poorly known central Chilean rivers. Secondly, we used a co-inertia analysis (see Dolédec and Chessel in Freshw Biol 31:277–294, 1994) to explore the possible relationships between the
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The Speciation and Mobility of Mn and Fe in Estuarine Sediments Aquat. Geochem. (IF 1.103) Pub Date : 2019-03-15 Véronique E. Oldham; Matthew G. Siebecker; Matthew R. Jones; Alfonso Mucci; Bradley M. Tebo; George W. Luther
Dissolved and solid-phase speciation of Mn and Fe was measured in the porewaters of sediments recovered from three sites in the Greater St. Lawrence Estuary: the Saguenay Fjord, the Lower St. Lawrence Estuary (LSLE) and the Gulf of St. Lawrence (GSL). At all sites and most depths, metal organic ligand complexes (Mn(III)–L and Fe(III)–L) dominated the sedimentary porewater speciation, making up to 100%
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Evaluation of Hydrogeochemical Processes for Waters’ Chemical Composition and Stable Isotope Investigation of Groundwater/Surface Water in Karst-Dominated Terrain, the Upper Tigris River Basin, Turkey Aquat. Geochem. (IF 1.103) Pub Date : 2019-02-26 E. Dişli
The Upper Tigris River Basin is one of the biggest basins in Turkey, where municipal, agricultural and industrial water supplies are highly dependent on groundwater and surface water resources. The interpretation of plots for different major ions indicates that the chemical compositions of the surface/groundwater in the Upper Tigris River Basin are dominated Ca2+, Mg2+, HCO3− and SO42− which have been
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Detection of Biochar Carbon by Fluorescence and Near-Infrared-Based Chemometrics Aquat. Geochem. (IF 1.103) Pub Date : 2019-02-14 Minori Uchimiya; Alan J. Franzluebbers; Zhongzhen Liu; Marshall C. Lamb; Ronald. B. Sorensen
Large-scale biochar field trials have been conducted worldwide to test for “carbon negative strategy” in the event of carbon credit and if other subsidies become enacted in the future. Once amended to the soil, biochar engages in complex organo-mineral interactions, fragmentation, transport, and other aging mechanisms exhibiting interactions with treatments including the irrigation and fertilizer application
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Hydrogeochemical Processes in a Small Eastern Mediterranean Karst Watershed (Nahr Ibrahim, Lebanon) Aquat. Geochem. (IF 1.103) Pub Date : 2018-12-14 N. Hanna; B. Lartiges; V. Kazpard; E. Maatouk; N. Amacha; S. Sassine; A. El Samrani
Watersheds located in semiarid areas such as the eastern Mediterranean are particularly sensitive to the impact of climate change. To gain knowledge on the hydrogeochemical processes occurring in the Nahr Ibrahim watershed, a Critical Zone Observatory in Lebanon, we analyze the isotopic composition of the river water as well as the concentrations of the major ions exported (Ca2+, Mg2+, HCO3−, Na+,
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Potential Influence of Ocean Acidification on Deep-Sea Fe–Mn Nodules and Pelagic Clays: An Improved Assessment by Using Artificial Seawater Aquat. Geochem. (IF 1.103) Pub Date : 2018-09-14 Quan Wang; Hodaka Kawahata; Kyoko Yamaoka; Atsushi Suzuki
In order to assess the potential risk of metal release from deep-sea sediments in response to pH decrease in seawater, the mobility of elements from ferromanganese (Fe–Mn) nodules and pelagic clays was examined. Two geochemical reference samples (JMn-1 and JMS-2) were reacted with the pH-controlled artificial seawater (ASW) using a CO2-induced pH regulation system. Our experiments demonstrated that
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Uranium and Multi-element Release from Orthogneiss and Granite (Austria): Experimental Approach Versus Groundwater Composition Aquat. Geochem. (IF 1.103) Pub Date : 2018-08-17 Daniel Elster; Edith Haslinger; Martin Dietzel; Heinz Fröschl; Gerhard Schubert
In this study, the release of elements and in particular U from five Austrian orthogneiss and granite samples into a CO2-bearing solution was investigated to describe the initial phase (24 h) of leaching focusing on the impact of ferrous (hydro)oxide formation. Experiments were conducted at ambient temperature by flushing CO2:N2 gas through the reactive solution (pHinitial ~ 4.3) at a liquid:solid
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Correction to: A Tribute to Rick and Debbie Jahnke: From Deep Sea Pore Water to Coastal Permeable Sediments-Contributions that Cover the Oceans Aquat. Geochem. (IF 1.103) Pub Date : 2018-08-13 Timothy J. Shaw,Steve Emerson,Herbert L. Windom
In the original publication of the article, the third author affiliation was incorrectly published.
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Reduction of Manganese Oxides: Thermodynamic, Kinetic and Mechanistic Considerations for One- Versus Two-Electron Transfer Steps Aquat. Geochem. (IF 1.103) Pub Date : 2018-07-28 George W. Luther; Aubin Thibault de Chanvalon; Véronique E. Oldham; Emily R. Estes; Bradley M. Tebo; Andrew S. Madison
Manganese oxides, typically similar to δ-MnO2, form in the aquatic environment at near neutral pH via bacterially promoted oxidation of Mn(II) species by O2, as the reaction of [Mn(H2O)6]2+ with O2 alone is not thermodynamically favorable below pH of ~ 9. As manganese oxide species are reduced by the triphenylmethane compound leucoberbelein blue (LBB) to form the colored oxidized form of LBB (λmax = 623 nm)
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Salt Crystallization Sequences of Nonmarine Brine and Their Application for the Formation of Potassium Deposits Aquat. Geochem. (IF 1.103) Pub Date : 2018-07-05 Chuanyong Ye; Jianye Mao; Yaqiong Ren; Yingping Li; Yongjie Lin; Ian M. Power; Yangbing Luo
The salt assemblages precipitated during evaporation of concentrated brine collected from Gasikule Salt Lake (GSL) were studied to better understand the formation of potassium deposits in the Qaidam Basin. The study included isothermal evaporation at 25 °C in the laboratory and solar evaporation in the ponds at GSL field. Brines increased in density and became moderately acidic (pH ≈ 5.30) while major
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Integration of In Situ Experiments and Numerical Simulations to Reveal the Physicochemical Circumstances of Organic and Inorganic Precipitation at a Thermal Spring Aquat. Geochem. (IF 1.103) Pub Date : 2018-07-02 Petra Kovács-Bodor; Dóra Anda; Laura Jurecska; Mihály Óvári; Ákos Horváth; Judit Makk; Vincent Post; Imre Müller; Judit Mádl-Szőnyi
Organic and inorganic precipitates are both characteristic in the active hypogenic karst area of Buda Thermal Karst in Hungary. As an active system, it is a good natural laboratory to study ongoing precipitation processes. Because of anthropogenic influence and the complexity of spring environments, it is challenging to reveal all the governing factors in the process of precipitation. In situ experiments
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Oxygen Consumption in Permeable and Cohesive Sediments of the Gulf of Aqaba Aquat. Geochem. (IF 1.103) Pub Date : 2018-06-22 Valeria Boyko; Adi Torfstein; Alexey Kamyshny
Oxygen profiles were measured in the sediments of the Gulf of Aqaba (Red Sea), an oligotrophic marine system affected by episodic seasonal flash floods and intense aeolian dry deposition. Sediment cores were retrieved from shallow (15–45 m), intermediate (250–561 m) and deep (700 m) water sites of south–north and east–west transects. Dissolved oxygen concentrations were measured simultaneously by using
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Fluorescence Quenching and Energy Transfer Phenomena Associated with the Interactions of Terbium Ion and Humic Acid Aquat. Geochem. (IF 1.103) Pub Date : 2018-06-19 Mingquan Yan; Gregory V. Korshin; Marc F. Benedetti; Chi-Wang Li
Fluorescence of the hydrophobic acid fraction (HPOA) of Suwannee River natural organic matter and Tb3+ excitation spectra were measured in tandem using the instantaneous and time-resolved emission modes. The intensity of HPOA fluorescence decreased in the presence of Tb3+, while the intensity of the emission from Tb3+ cations bound by HPOA increased by up to several orders of magnitude due to energy
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The Origin and MgCl 2 –NaCl Variations in an Athalassic Sag Pond: Insights from Chemical and Isotopic Data Aquat. Geochem. (IF 1.103) Pub Date : 2018-04-26 Tiziano Boschetti; Salih Muhammad Awadh; Emma Salvioli-Mariani
The examination of past and new chemical–isotopic data (2H/1H–18O/16O, 11B/10B and 87Sr/86Sr ratios) shows the meteoric origin of the Sawa Lake (Muthanna Governorate, Iraq) and its connection with the local aquifers, which feed the lake via the groundwater emerging from its floor through fault systems. The chemical and isotopic evaporation models are traced by geochemical computer codes by using a
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Variation of the Chemistry of the Dead Sea Brine as Consequence of the Decreasing Water Level Aquat. Geochem. (IF 1.103) Pub Date : 2018-03-15 Jamal Abu-Qubu; Broder Merkel; Volkmar Dunger; Omar Rimawi
For many years, the Dead Sea suffers from an annual inflow deficiency of about one billion cubic meters, flood and baseflow. The water level changes are related to the majority of surface water inflows diverted for irrigation purposes, in addition to intensive loss of water by the high rate of evaporation and industrial water use. This causes the Dead Sea water level to decline about 35 m within the
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Galena Non-oxidative Dissolution Kinetics in Seawater Aquat. Geochem. (IF 1.103) Pub Date : 2018-03-14 Rodrigo F. Embile; Ingar Walder
The rate of non-oxidative galena dissolution in seawater compositions over the pH range of 2–4.5 was determined from batch reactor experiments. The derivative at zero time of a polynomial fit of the Pb concentration versus time data for the first 30 min was used to determine the rate. A plot of RGn (rate of galena dissolution) versus pH for data from six experiments is linear (R2 = 0.96), with a slope
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Correction to: The Iodide and Iodate Distribution in the Seto Inland Sea, Japan Aquat. Geochem. (IF 1.103) Pub Date : 2018-03-08 Kazuhiko Takeda,Kengo Yamane,Yuuta Horioka,Kazuaki Ito
In the original publication of the article, Figs. 3 and 4 were interchanged. Now the correct figures have been provided in this erratum.
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Seasonal Variability of Mineral Formation in Microbial Mats Subjected to Drying and Wetting Cycles in Alkaline and Hypersaline Sedimentary Environments Aquat. Geochem. (IF 1.103) Pub Date : 2018-02-23 Ó. Cabestrero; M. E. Sanz-Montero; L. Arregui; S. Serrano; P. T. Visscher
Interactions of the microbial mat community with the sedimentary environment were evaluated in two shallow, ephemeral lakes with markedly different hydrochemistry and mineralogy. The characterization of growing and decaying microbial mats by light microscopy observations and fluorescence in situ hybridization was complemented with biogeochemical and mineralogical measurements. The lakes studied were
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Source and Biogeochemical Distribution of Organic Matter in Surface Sediment in the Deep Oligotrophic Lake Fuxian, China Aquat. Geochem. (IF 1.103) Pub Date : 2018-02-12 Xiangchao Chen; Muhua Feng; Fan Ke; Jizheng Pan; Fan Fan; Yarui Wang; Wenchao Li
The source, quantity and quality of sedimentary organic matter (SOM) were investigated in the surface sediments of Lake Fuxian, a deep oligotrophic lacustrine system in China. Granulometry, biochemical organic composition, bulk organic proxies and their stable isotopes were determined in the surface sediments (0–4 cm). The values of δ13C, δ15N and atomic ratio of total organic carbon to total nitrogen
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Characterizing Major Controls on Spatial and Seasonal Variations in Chemical Composition of Surface and Pore Brine of Maharlu Lake, Southern Iran Aquat. Geochem. (IF 1.103) Pub Date : 2018-02-06 Roghyeh Khosravi; Mehdi Zarei; Moritz Bigalke
Maharlu Lake with Na–Cl water type is the terminal point of a closed basin in southern Iran. A total of 10 water samples from two rivers discharging to the lake and 78 water samples of surface and pore brine of Maharlu Lake have been collected from different depths (surface, 20, 50 and 100 cm) of four sampling stations along the lake during a period of lake water-level fluctuation (November 2014–July
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Factors Controlling the Fractionation and Seasonal Mobility Variations of Ga and In in Systems Impacted by Acidic Thermal Waters: Effects of Thermodynamics and Bacterial Activity Aquat. Geochem. (IF 1.103) Pub Date : 2018-01-30 Yasumasa Ogawa; Daizo Ishiyama; Naotatsu Shikazono; Koichi Suto; Chihiro Inoue; Noriyoshi Tsuchiya; Bernhardt Saini-Eidukat; Scott A. Wood
This work assessed both the fractionation and the seasonal mobility variations of Ga and In in systems impacted by acidic thermal waters. This was accomplished by performing thermodynamic calculations using the PHREEQC algorithm and by assessing the activity of acidophilic iron-oxidizing bacteria. The pH of the Kusatsu thermal waters in Gunma Prefecture, central Japan, is rapidly increased following
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Long-Term Experimental Determination of Solubilities of Micro-Crystalline Nd(III) Hydroxide in High Ionic Strength Solutions: Applications to Nuclear Waste Management Aquat. Geochem. (IF 1.103) Pub Date : 2017-12-01 Yongliang Xiong; Leslie Kirkes; Cassie Marrs
In this study, the experimental results from long-term solubility experiments up to 1146 days on micro-crystalline neodymium hydroxide, Nd(OH)3(micro-cr), in high ionic strength solutions at 298.15 K under well-constrained conditions, are presented. Hydrogen ion concentrations in our experiments are controlled by the dissolution of Nd(OH)3(micro-cr) without artificial adjustment with addition of either
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