Variations of physico-mechanical, mineralogical and geochemical properties of marble under the influence of weathering [PDF]
Purpose. To investigate the physico-mechanical, mineralogical and geochemical properties variations of Igbeti marble, south-western Nigeria under the influence of weathering. Methods. About twenty representative samples were collected at a varying depth
Lawal, A.I., Ogunsola, N.O., Saliu, M.A.
core +1 more source
Evaluating sensitivity of silicate mineral dissolution rates to physical weathering using a soil evolution model (SoilGen2.25) [PDF]
Silicate mineral dissolution rates depend on the interaction of a number of factors categorized either as intrinsic (e.g. mineral surface area, mineral composition) or extrinsic (e.g.
E. Opolot, P. A. Finke
doaj +1 more source
Silicate weathering in anoxic marine sediment as a requirement for authigenic carbonate burial
We emphasize the importance of marine silicate weathering (MSiW) reactions in anoxic sediment as fundamental in generating alkalinity and cations needed for carbonate precipitation and preservation along continental margins.
M. Torres +7 more
semanticscholar +1 more source
Co-variation of silicate, carbonate and sulfide weathering drives CO2 release with erosion
Global climate is thought to be modulated by the supply of minerals to Earth’s surface. Whereas silicate weathering removes carbon dioxide (CO2) from the atmosphere, weathering of accessory carbonate and sulfide minerals is a geologically relevant source
Aaron Bufe +6 more
semanticscholar +1 more source
Lithologic Controls on Silicate Weathering Regimes of Temperate Planets [PDF]
Weathering of silicate rocks at a planetary surface can draw down CO2 from the atmosphere for eventual burial and long-term storage in the planetary interior. This process is thought to provide essential negative feedback to the carbonate-silicate cycle (
K. Hakim +8 more
semanticscholar +1 more source
Worldwide distribution of continental rock lithology: Implications for the atmospheric/soil CO2 uptake by continental weathering and alkalinity river transport to the oceans [PDF]
The silicate rock weathering followed by the formation of carbonate rocks in the ocean, transfers CO2 from the atmosphere to the lithosphere. This CO2 uptake plays a major role in the regulation of atmospheric CO2 concentrations at the geologic ...
Amiotte Suchet, Philippe +2 more
core +2 more sources
The Carbonate rock weathering Carbon Sink (CCS) and Silicate rock weathering Carbon Sink (SCS) play a significant role in the carbon cycle and global climate change.
L. Xiong +18 more
semanticscholar +1 more source
The progress and prospects of potassium stable isotopes in hydrogeochemistry
Chemical weathering of silicate minerals is an important source for Ca, Mg, Na and K. However, in comparison with other major elements (e.g., Ca, Mg and Na) in waters, how K behaves during water-rock interaction remains poorly understood.
Taotao JI, Xiaowei JIANG
doaj +1 more source
High potential for weathering and climate effects of non-vascular vegetation in the Late Ordovician [PDF]
It has been hypothesized that predecessors of today’s bryophytes significantly increased global chemical weathering in the Late Ordovician, thus reducing atmospheric CO2 concentration and contributing to climate cooling and an interval of glaciations ...
A Boucot +60 more
core +3 more sources
Evidence for silicate dissolution on Mars from the Nakhla meteorite [PDF]
Veins containing carbonates, hydrous silicates and sulphates that occur within and between grains of augite and olivine in the Nakhla meteorite are good evidence for the former presence of liquid water in the Martian crust.
Ashworth +39 more
core +1 more source

