Journal ArticleDOI
Basalt weathering laws and the impact of basalt weathering on the global carbon cycle
TLDR
In this paper, the chemical weathering of basalts and the flux of carbon transferred from the atmosphere to the ocean during this major process at the surface of the Earth were investigated.About:
This article is published in Chemical Geology.The article was published on 2003-12-30. It has received 762 citations till now. The article focuses on the topics: Soil production function & Weathering.read more
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CO2 geological storage: The environmental mineralogy perspective Mineralogie environnementale et stockage geologique de CO2
TL;DR: In this article, the authors discuss some environmental mineralogy research perspectives raised by CO2 geological storage, and discuss the efficiency of the process and its environmental consequences in large-scale CO2 storage.
Journal ArticleDOI
GNOM v1.0: an optimized steady-state model of the modern marine neodymium cycle
TL;DR: The Global Neodymium Ocean Model (GNOM) v1.0 as discussed by the authors is the first inverse model of the global marine biogeochemical cycle of Nd, which is embedded in a data-constrained steady-state circulation that affords spectacular computational efficiency.
Journal ArticleDOI
Pan-Arctic soil element bioavailability estimations
Peter Stimmler,Mathias Goeckede,Bo Elberling,Susan M. Natali,Peter Kuhry,N. S. Perron,Fabrice Lacroix,Gustaf Hugelius,Oliver Sonnentag,Jens Strauss,Christina Minions,Michael Sommer,Jörg Schaller +12 more
TL;DR: In this paper , the authors analyzed the amorphous silicon (ASi) content of Arctic soils and extracted the Mehlich III extractions for the availability of silicon (Si), calcium (Ca), iron (Fe), phosphorus (P), and aluminum (Al).
Journal ArticleDOI
Understanding the early Paleozoic carbon cycle balance and climate change from modelling
Chloé M. Marcilly,Pierre Maffre,Guillaume Le Hir,Alexandre Pohl,Frédéric Fluteau,Yves Goddéris,Yannick Donnadieu,Thea H. Heimdal,Trond H. Torsvik +8 more
TL;DR: In this paper , a spatially resolved climate-carbon cycle Earth system model fed with refined continental reconstructions and new estimates of solid Earth degassing is used to simulate the Ordovician global cooling trend observed by several temperature proxies.
Tracing continental weathering using lithium and magnesium isotopes: Insights from the chemical weathering of Columbia River basalts and mass balance modeling
TL;DR: Li and Mg isotopes have been used as tracers of chemical weathering in the Columbia River Basalts in this paper, and the results show that the results can be used to trace the global CO2 cycle over geological time scales.
References
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Global silicate weathering and CO2 consumption rates deduced from the chemistry of large rivers
TL;DR: In this article, newly compiled data on the 60 largest rivers of the world are used to calculate the contribution of main lithologies, rain and atmosphere to river dissolved loads, and the relationship between the chemical weathering rates of silicates and the possible controlling parameters are explored.
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The carbonate-silicate geochemical cycle and its effect on atmospheric carbon dioxide over the past 100 million years
TL;DR: In this article, a computer model has been constructed that considers the effects on the CO/sub 2/ level of the atmosphere, and the Ca, Mg, and HCO/sub 3/ levels of the ocean, of the following processes: weathering on the continents of calcite, dolomite, and calcium-and-magnesium-containing silicates; biogenic precipitation and removal of CaCO 3/from the ocean; removal of Mg from the ocean via volcanic-seawater reaction; and the metamorphic-magmatic decarbon
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Tectonic forcing of late Cenozoic climate
TL;DR: In particular, tectonically driven increases in chemical weathering may have resulted in a decrease of atmospheric C02 concentration over the past 40 Myr as discussed by the authors. But this was not shown to be the case for the uplift of the Tibetan plateau and positive feedbacks initiated by this event.
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Geocarb III: A Revised Model of Atmospheric CO2 over Phanerozoic Time
TL;DR: In this article, the GEOCARB model has been updated with an emphasis on factors affecting CO2 uptake by continental weathering, including the role of plants in chemical weathering and the application of GCMs to study the long-term carbon cycle.
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A negative feedback mechanism for the long‐term stabilization of Earth's surface temperature
TL;DR: In this article, it is suggested that the partial pressure of carbon dioxide in the atmosphere is buffered, over geological time scales, by a negative feedback mechanism, in which the rate of weathering of silicate minerals (followed by deposition of carbonate minerals) depends on surface temperature, which in turn depends on the carbon dioxide partial pressure through the greenhouse effect.