Depetris, Pedro José, Pasquini, Andrea Inés, Lecomte, Karina Leticia
2014, X, 95 p. 41 illus., 31 illus. in color.
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Written by a world known expert in hydrological geochemistry
Describes various aspects of the non organic and organic load of rivers to the oceans
Details the effect of climatic change to the river load
In this monograph the authors present an overview of the state-of-the-art and use examples or case histories to illustrate the combined role of rock decay and rivers on continental denudation. The Earth’s surface dynamics would not be conceivable without the fundamental component of rock weathering and the subsequent transport of solid debris and dissolved components to the coastal ocean through riverine drainage pathways. In other words, continental wear away is highly dependent on the mechanisms that control mineral decay. Moreover, besides the significant role played by rivers in shaping the Earth’s outer skin, there is the important function that rivers perform in all geochemical cycles, mediating between the lithosphere, the hydrosphere, the biosphere and the hydrosphere. Drainage basins and the weathering of rocks that occur therein may be significant sources (or sinks) of carbon dioxide and, hence, play a significant role in affecting the Earth’s climate.
Introduction.- The Commencement of Continental Denudation: Mechanical Weathering.- The Biological Path to Rock Breakdown.- Chemical Weathering Processes at Earth´s Surface.- Weathering: Intensity and Rates.- The Wearing Away of Continents.- Concluding Comments.