Geochemical Modelling
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Recent papers in Geochemical Modelling
In this study, twenty one (21) trace elements in the basement complex groundwater of Blantyre district, Malawi were analyzed. The majority of the analyzed trace elements in the water were within the standards set by World Health... more
Zona Citrícola is an important area for Mexico due to its citriculture activity. Situated in a sub-humid to humid climate adjacent to the Sierra Madre Oriental, this valley hosts an aquifer system that represents sequences of shales,... more
Abstract Details are given of the increasing global public concern relating to hydro‐environmental issues and examples are cited of some of the water quality and contaminant problems now being considered by river managers on a regular... more
The probability of the occurrence of porphyry copper ore associated with subduction zone of the Neo-Tethys ocean and volcanic arc of Iran (Urumieh-Dokhtar) justifies the necessity of exploration and prospection of this type of ore in... more
A quantitative assessment of annual soil erosion by water in the northern part of Kirkuk Governorate, north of Iraq was investigated through integration of remote sensing, GIS and empirical RULSE soil erosion model. The five factors of... more
In order to understand and mitigate the deterioration of water quality in the aquifer system underlying Guadalajara metropolitan area, an investigation was performed developing geochemical evolution models for assessment of groundwater... more
Experiments were conducted to explore the concept of beneficially utilizing mixtures of caustic bauxite residue slurry (pH 13) and produced oil-field brine to sequester carbon dioxide from flue gas generated from industrial point sources.... more
The lighthouse of St Michael the Angel in Foz do Douro, Porto, is the oldest existing lighthouse in Portugal. It was the Bishop of Viseu, D. Miguel da Silva, who ordered the construction of the lighthouse-chapel of St. Michael the... more
P rotocells are envisaged as encapsulated networks of catalytic polymers, such as RNAs, which are thought to have existed on the prebiotic Earth as precursors to contemporary biological cells. Such protocells were not "alive" in the way... more
Bioturbation plays a crucial role in benthic nutrient cycling in many sedimentary environments. Burrowing animals affect benthic-pelagic coupling by mixing sediment and porewater and increasing the effective area of diffusive exchange... more
Isotopic and geochemical constraints on the evolution
This report presents the results of a compositional study using laser ablation–inductively coupled plasma–mass spectrometry (LA-ICP-MS) to examine central Mexican obsidian procurement at four sites dating to the Formative and Classic... more
The interaction between surface water and groundwater is a complex process and is considered as an important component for controlling the mining activities. The objective of this study is to understand the interaction between surface... more
ABSTRACT The present work studies the environmental isotopes assess groundwater characteristics of the different parts of the main aquifer in the northeast Missan Province in south of Iraq. Water samples of groundwater and surface water... more
The probability of the occurrence of porphyry copper ore associated with subduction zone of the Neo-Tethys ocean and volcanic arc of Iran (Urumieh-Dokhtar) justifies the necessity of exploration and prospection of this type of ore in... more
Disposal of industrial waste is of great concern because it releases toxic metals resulting into the degradation of environments and consequently causes health effects on humans. The present study was carried out with the objectives of... more
The Big Ledge mine is a former barite mine located in a mountainous area of northeastern Nevada. The site contains several mine-impacted waters including a small pit lake and an area of apparent waste rock seepage. The Big Ledge pit lake... more
A geochemical model was developed to predict future water quality of the Cove pit lake in support of site closure and regulatory permitting. The terminal, groundwater-fed Cove pit lake began filling in 2001, and water-quality samples from... more
This paper explores how dissolution and precipitation reactions are coupled in batch reactor experimental systems at elevated temperatures. This is the fifth paper in our series of ''Coupled Alkali Feldspar Dissolution and Secondary... more
The geochemical processes and thermodynamic behavior of dissolved and precipitated carbonate minerals controlling the hydrochemistry of an aquifer in the seawater/freshwater mixing zone of a small island are identified. Field and... more
Groundwater in the Carboniferous–Permian sedimentary aquifer in the vicinity of Unislaw Śląski–Sokolowsko (Intra-Sudetic Basin, the Sudetes, SW Poland) manifests spatial chemical diversity. The water chemistry varies from fresh... more
In this study, twenty one (21) trace elements in the basement complex groundwater of Blantyre district, Malawi were analyzed. The majority of the analyzed trace elements in the water were within the standards set by World Health... more
To assess the impact of fluoride and nitrate concentration on groundwater quality at Zaheerabad area, 50 groundwater samples were collected from borewells/dugwells and analyzed for major ions. Water quality analysis of major ions shows... more
The Dexter pit lake is a mine pit lake located in north-eastern Nevada, located in the Tuscarora volcanic field. The pit lake formed in 1990 following cessation of open-pit gold and silver mining operations. This pit lake has been the... more
Geochemical modeling of heavy metals released from the activities of artisanal mining for gold exploitation was investigated in this study. Samples of mine water and sediment discharges were collected before and after treatment. Untreated... more
ENI-AGIP Internal report, San Donato Milanese, pp. 1-13, September 1998
One concern regarding the underground storage of carbon dioxide (CO 2) is its potential leakage from reservoirs. Over short period of time, the leakage risk is related mainly to CO 2 as a separate supercritical fluid phase. However, over... more
Authors: Višňák, J.; Steudtner, R.; Kassahun, A.; Hoth, N. Natural waters’ uranium level monitoring is of great importance for health and environmental protection. One possible detection method is the Time-Resolved Laser-Induced... more
Pit lakes form as groundwater recovers following the closure of open pit mines, which are common throughout the State of Nevada. Management of both existing and predicted future pit lakes is overseen by the Nevada Division of... more
Zona Citrícola is an important area for Mexico due to its citriculture activity. Situated in a sub-humid to humid climate adjacent to the Sierra Madre Oriental, this valley hosts an aquifer system that represents sequences of shales,... more
Zona Citrícola is an important area for Mexico due to its citriculture activity. Situated in a sub-humid to humid climate adjacent to the Sierra Madre Oriental, this valley hosts an aquifer system that represents sequences of shales,... more
In this study, twenty one (21) trace elements in the basement complex groundwater of Blantyre district, Malawi were analyzed. The majority of the analyzed trace elements in the water were within the standards set by World Health... more
The recent recovery processes of electric arc furnace dust (EAFD) include stabilization within materials with potential uses in the construction sector. The stabilization of EAFD by alkaline activation of different alumina-silicates,... more
Abstract: The present work studies the environmental isotopes assess groundwater characteristics of the different parts of the main aquifer in the northeast Missan Province in south of Iraq. Water samples of groundwater and surface water... more
One of the fundamental problems in modern geochemistry is the significant discrepancy between laboratory-measured and field derived feldspar dissolution rates. Zhu et al. (2004) proposed a new hypothesis for explaining the... more
This paper explores how dissolution and precipitation reactions are coupled in batch reactor experimental systems at elevated temperatures. This is the fourth paper in our series of “Coupled Alkali Feldspar Dissolution and Secondary... more
Experiments were conducted to explore the concept of beneficially utilizing mixtures of caustic bauxite residue slurry (pH 13) and produced oil-field brine to sequester carbon dioxide from flue gas generated from industrial point sources.... more
Weathering rates of silicate minerals observed in the laboratory are in general up to five orders of magnitude higher than those inferred from field studies. Simple calculations show that even if the field conditions were fully simulated... more