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
Citations
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Did high Neo-Tethys subduction rates contribute to early Cenozoic warming?
Guilhem Hoareau,Guilhem Hoareau,Brahimsamba Bomou,Brahimsamba Bomou,Brahimsamba Bomou,D.J.J. van Hinsbergen,Nicolas Carry,Didier Marquer,Yannick Donnadieu,G. Le Hir,Bruno Vrielynck,Anne-Véronique Walter-Simonnet +11 more
TL;DR: In this paper, the impact of CO2 fluxes on global temperature during the early Cenozoic has been analyzed using a climate carbon cycle model (GEOCLIM), showing that CO2 production may have reached up to 1.55 × 1018 mol Ma−1 during the EECO.
Journal ArticleDOI
GEOCLIM reloaded (v 1.0): a new coupled earth system model for past climate change
TL;DR: In this article, a new version of the coupled Earth system model GEOCLIM (v 1.0) is presented, which links the existing atmosphere and weathering modules to a novel, temporally and spatially resolved model of the global ocean circulation, providing a physical framework for a mechanistic description of the marine biogeochemical dynamics of carbon, nitrogen, phosphorus and oxygen.
Journal ArticleDOI
Applicability of chemical weathering indices of eolian sands from the deserts in northern China
TL;DR: In this article, several chemical weathering indices, including the chemical index of alteration, Parker's weathering index, chemical indices of weathering, plagioclase index of alterations, chemical proxy of alteration and αAlE indices, were calculated for 521 eolian sand samples collected from across twelve deserts in northern China.
OtherDOI
Connecting the Deep Earth and the Atmosphere
Trond H. Torsvik,Trond H. Torsvik,Henrik Svensen,Bernhard Steinberger,Bernhard Steinberger,Dana L. Royer,Dougal A. Jerram,Dougal A. Jerram,Morgan T. Jones,Mathew Domeier +9 more
TL;DR: This paper found no clear relationship between LIPs and post-emplacement variation in atmospheric CO2 proxies on very long (>10 Myrs) time-scales and showed that continental arc activity may have played an important role in regulating long-term climate change (greenhouse vs. icehouse conditions).
Journal ArticleDOI
Molybdenum, vanadium, and uranium weathering in small mountainous rivers and rivers draining high-standing islands
Christopher B. Gardner,Anne E. Carey,W. Berry Lyons,Steven T. Goldsmith,Brandon C. McAdams,Annette M. Trierweiler +5 more
TL;DR: In this paper, the authors report on the riverine concentrations, ocean flux, and weathering yields of Molybdenum (Mo), Vanadium (V), and Uranium (U) in a large number of small but geochemically important rivers using 338 river samples from ten lithologically diverse regions.
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Journal ArticleDOI
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.