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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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Dissertation

The geochemistry of manganese, iron and phosphorus in an Arctic lake

TL;DR: Sediment redox processes were investigated in an oligotrophic, arctic lake containing metal oxide crusts in oxidizing surficial sedi- fents (up to 22% Mn and 26% Fe) as discussed by the authors.
Journal ArticleDOI

Mechanisms controlling Cu, Fe, Mn, and Co profiles in peat of the Filson Creek Fen, northeastern Minnesota

TL;DR: In this paper, a site in the fen was studied to evaluate the hydrogeochemical mechanisms governing the development of Fe, Mn, Co, and Cu profiles in the peat.
Journal ArticleDOI

Role of the bi-dispersion of particle size on tortuosity in isotropic structures of spherical particles by three-dimensional computer simulation

TL;DR: In this paper, the effect of the bi-dispersion of the particle size on tortuosity is investigated, and a lower bound curve is proposed to calculate the porosity-tortuosity ratio.
Journal ArticleDOI

Relationships between Vegetation Succession, Pore Water Chemistry and CH 4 and CO 2 Production in a Transitional Mire of Western Siberia (Tyumen Oblast)

TL;DR: In this paper, the authors present data on a transitional mire in South-Western Siberia that evolved from early thermokarst lake succession and show that the vegetation of the mire shows a remarkable zonation from the edges to the center.
Journal ArticleDOI

Advective transport through permeable sediments: A new numerical and experimental approach

TL;DR: In this article, the authors investigate the flow through a porous medium both numerically and experimentally, and show that viscous diffusion is of significance over a narrow region, the Brinkman-layer, below the fluid-sediment interface, and that the Darcy equation alone is not sufficient to estimate the advective transport correctly.
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