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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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Journal ArticleDOI

CO2 and H2SO4 consumption in weathering and material transport to the ocean, and their role in the global carbon balance

TL;DR: In this paper, a general relationship describing the CO2 consumption by mineral weathering reactions with carbonate and silicate minerals is presented, where the authors show that CO2 uptake in weathering is comparable to other interreservoir fluxes in the atmosphere-land-ocean system.
Book ChapterDOI

Erosion, Sedimentation and Sedimentary Origin of Clays

TL;DR: In the marine environment, terrigenous (land-derived) muds cover about 60% of the continental shelves and almost 40% of deep ocean basins, amounting in total to about a third of the Earth's surface.
Journal ArticleDOI

Rates of reaction between silicate iron and dissolved sulfide in Peru Margin sediments

TL;DR: In this paper, straight line plots are obtained for 1n [(FeH − FeD)/FeT] against time of burial, from which a first order rate constant of 0.29 × 10−6 yr−1 (equivalent to a half-life of 2.4 × 106 yr) can be derived for the sulfidation of this silicate iron.
Journal ArticleDOI

Methane cycling in the sediments of Lake Washington

TL;DR: In terms of the total carbon budget of the lake, the upward flux of methane is insignificant with only about 2% of the carbon fixed by primary production being returned as methane as mentioned in this paper.
Journal ArticleDOI

Stroboscopic determination of settling velocity, size and porosity of activated sludge flocs

TL;DR: In this article, a multi-exposure photographic method was developed for the combined measurement of the settling velocity and size of activated sludge flocs, which mainly differs from the previous stroboscopic tests by introducing a new experimental arrangement which ensures sharp images of floc on photographs.
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