Results 111 to 120 of about 164,938 (266)

Silicate and Carbonate Weathering Perturbation at the Eocene‐Oligocene Transition Recorded by Mg Isotopes

Geochemistry, Geophysics, Geosystems
During the Eocene‐Oligocene Transition (ca. 34 Ma), the Earth underwent a dramatic decline in atmospheric CO2, global cooling, a deepening of the carbonate compensation depth (CCD), and the formation of a permanent ice sheet on Antarctica.
Adam D. Sproson, Toshihiro Yoshimura, Shigeyuki Wakaki, Takahiro Aze, Yusuke Yokoyama, Tsuyoshi Ishikawa, Naohiko Ohkouchi   +6 more
doaj   +1 more source

Field‐based evaluation of glass cullet as a supplementary sediment source for coastal restoration

Restoration Ecology, EarlyView.
There is an ever‐increasing demand for sand to support projects like beach nourishment and dune restoration, but dredging and mining sand causes environmental damage. Demonstrating the environmental and ecological compatibility of crushed and ground glass known as cullet to support coastal restoration projects could simultaneously divert waste from ...
Lily S. Pfeifer, Charles A. Schutte
wiley   +1 more source

Disentangling Continental Weathering During the Late Paleozoic Ice Age

Geophysical Research Letters
The consumption of atmospheric CO2 through continental weathering played a critical role in shaping the evolution of the late Paleozoic Ice Age (LPIA), presumably driven by the Hercynian orogeny and the evolution of terrestrial plants.
Biao Gao, Guozhen Xu, Wenli Yang, Jitao Chen   +3 more
doaj   +1 more source

Natural Weathering Rates of Silicate Minerals

, 2014
This chapter presents 1) the development of rates that quantitatively describe silicate mineral and rock weathering, 2) a summary of the available literature rate data for the weathering of several common silicate minerals, and 3) a discussion of the ...
White, Arthur F, A.F. White, Buss, Heather L, H.L. Buss   +3 more
core   +1 more source

Carbon Cycle Instability for High-CO2 Exoplanets: Implications for Habitability

The Astrophysical Journal
Implicit in the definition of the classical circumstellar habitable zone (HZ) is the hypothesis that the carbonate-silicate cycle can maintain clement climates on exoplanets with land and surface water across a range of instellations by adjusting ...
R. J. Graham, R. T. Pierrehumbert
doaj   +1 more source

Coupling spatial geochemical and lithological information to distinguish silicate and non-silicate chemical weathering fluxes

, 2011
Lithological maps have been proved to be a useful tool to evaluate regional and global matter fluxes from chemical weathering. However, lithological classes provide aggregated information of mineralogical, geochemical, sedimentary or diagenetic ...
Moosdorf, N., Nils Moosdorf, Jens Hartmann, Hartmann, J.   +3 more
core   +1 more source

Effects of incorporation of nano particles on the mechanical properties of maxillofacial silicone elastomer subjected to outdoor weathering

Heliyon
Statement of problem: Natural weathering has varied effects on the service life of maxillofacial silicones due to its direct implications on the tear strength and hardness of the material.
Anjali Anjali, Hegde Chethan
doaj   +1 more source

Mountain ranges, climate and weathering. Do orogens strengthen or weaken the silicate weathering carbon sink ?

, 2018
The role of mountains in the geological evolution of the carbon cycle has been intensively debated for the last decades. Mountains are thought to increase the local physical erosion, which in turns promotes silicate weathering, organic carbon transport ...
Moquet, Jean-Sébastien, Jean-Baptiste Ladant, Godderis, Y., Carretier, Sébastien, Pierre Maffre, Ladant, Jean-Baptiste, Labat, David, Goddéris, Yves, Sébastien Carretier, David Labat, Ladant, J. B., Maffre, Pierre, Labat, D., Jean-Sébastien Moquet, Maffre, P., Moquet, J. S., Yves Goddéris   +16 more
core   +1 more source

Li and ?7Li in Himalayan rivers: Proxies for silicate weathering?

, 2005
This paper presents the first systematic survey of lithium and its isotopes in the dissolved load and suspended and bed sediments of tributaries of the Ganges, both before and after the monsoon. Locations were chosen in order to cover catchments draining
James, Rachael H., Harris, Nigel B.W., Kısakűrek, Başak   +2 more
core   +1 more source

Silicate Weathering [PDF]

Nature, 1970
openaire   +1 more source