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
More filters
Journal ArticleDOI
Neodymium isotope evidence for glacial-interglacial variability of deepwater transit time in the Pacific Ocean
Rong Hu,Alexander M Piotrowski +1 more
TL;DR: A generally faster deep Pacific overturning operated in recent glacial periods based on a novel application of Nd isotopes recorded in foraminifera, implying that greater glacial carbon storage due to sluggish circulation did not operate in a similar manner in the Pacific Ocean.
Journal ArticleDOI
Dynamics of the Largest Carbon Isotope Excursion During the Early Triassic Biotic Recovery
Philipp Widmann,Hugo Bucher,Marc Leu,Marc Leu,Torsten Vennemann,Borhan Bagherpour,Borhan Bagherpour,Elke Schneebeli-Hermann,Nicolas Goudemand,Urs Schaltegger +9 more
TL;DR: In this article, the authors established a high-resolution temporal calibration of the biggest positive carbon isotope excursion (CIE) spanning about 600 kyr in the late Smithian.
Journal ArticleDOI
Hydrogeological framework of the volcanic aquifers and groundwater quality in Dangila Town and the surrounding area, Northwest Ethiopia
Mulugeta Chanie Fenta,Mulugeta Chanie Fenta,Zelalem L. Anteneh,János Szanyi,David M. Walker,David M. Walker +5 more
TL;DR: In this article, the authors assessed Dangila town and its surrounding area, northwest Ethiopia, is assessed for hydrogeological framework and groundwater quality based on well and hydrochemical data and showed that the area has a multi-aquifer system: an unconfined perched aquifer at shallow depth; semi-confined and confined aquifers at greater depth in Quaternary basalts.
Journal ArticleDOI
Land degradation in northeastern Iceland: present and past carbon fluxes
TL;DR: In this paper, the authors define the present and past terrestrial fluxes of carbon in three river catchments in northeast Iceland and assess the effect of land degradation and future climate change on the fluxes.
Journal ArticleDOI
Reconciling Negative Soil CO2 Fluxes: Insights from a Large-Scale Experimental Hillslope
TL;DR: In this article, the authors investigate the variability and environmental controls of CO2 flux in a large-scale, vegetation-free, and highly instrumented hillslope located within the Biosphere 2 facility, where the main carbon sink is driven by carbonate weathering.
References
More filters
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.
Journal ArticleDOI
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
Journal ArticleDOI
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.
Journal ArticleDOI
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.
Journal ArticleDOI
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.