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Geochemical Processes: Water and Sediment Environments

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TLDR
The approach of this book to geochemistry can be summarized in the question: What happens, and how fast does it happen, when waters, solids, and gases interact in the earth's surface environment? The environment of the earths surface is made of solids and fluids, and the interactions among them are responsible for much of what is taking place in the physical world around us as mentioned in this paper.
Abstract
The approach of this book to geochemistry can be summarized in the question: What happens, and how fast does it happen, when waters, solids, and gases interact in the earths surface environment? The environment of the earths surface is made of solids and fluids, and theinteractions among them are responsible for much of what is taking place in the physical world around us. The dissolved load of natural waters and the materials of which sediments are made are the products of reactions taking place practically everywhere on land, in the atmosphere, and in the hydrosphere. Thus the term water and sediment environments applies effectivelly to much of the surface environment of the earth, including the zone of up to a few kilometers above and below the land and ocean surface. Evolution present itself to us as a more or less complex variety of processes-geological, physical, chemical, and biological. To this end, the inclusive title Geochemical Processes was chosen for the book, to introduce a text that emphasizes processes and time-dependent phenomena.

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An experimental and modeling study of Na-rich hydrothermal alteration

J. H Ara
TL;DR: In this paper, the authors investigated the mechanisms of sodic enrichment in the sediments during alteration and showed that Na-montmorillonite can be precipitated by pyroclastic rock/meteoric water interactions without seawater involvement.
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Quality of rainwater: A geochemical process of water-air-rock-life interaction

TL;DR: The role played by dust in the formation of raindrops and their stability is highlighted in this paper, where the quantitative relationship between the pH of rainwater and its chemical composition is defined by the formulation of a geochemical model, which allows the initial pH to be identified before contamination, such as the addition of substances with high buffering capacity, changed their hydrogen ion composition.
Journal ArticleDOI

Combination of photoacoustic detector with gas diffusion probes for the measurement of methane concentration gradients in submerged paddy soil

TL;DR: In this article, a photoacoustic (PA) detector cell placed in the cavity of a liquid nitrogen-cooled CO laser was used to detect dissolved methane in anoxic paddy soil.
Book ChapterDOI

Basic concepts in geochemical modelling

TL;DR: In this paper, the authors present simplified systems where these concepts appear clearly and their various basic properties can be easily shown, however, in complex systems to formulate theoretically a model without considerable simplifications and to distinguish then between the various factors influencing the response of the geochemical cycles.
Journal ArticleDOI

A Computational Fluid Dynamic Model for Prediction of Organic Dyes Adsorption from Aqueous Solutions

TL;DR: In this article, a computational fluid dynamic model incorporating the Langmuir isotherm scheme and second-order kinetic expression was presented to describe the adsorption process of synthetic dyes from aqueous solutions.
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