Sentences with phrase «rock weathering processes»

Not exact matches

Most of the ocean's salts were derived from gradual processes such the breaking up of the cooled igneous rocks of the Earth's crust by weathering and erosion, the wearing down of mountains, and the dissolving action of rains and streams which transported their mineral washings to the sea.

For example, rock records of an isotope of strontium — 87Sr — seem to show an increase in so - called chemical weathering, or weathering that is not simply the result of rain or other natural but not life - related processes.

High temperatures increase weathering of silicate rocks, and this sucks carbon dioxide out of the atmosphere and into the oceans — a process aided by plants.

The process happens naturally when rocks are gradually weathered by exposure to CO2 in the air.

While on present - day Earth the carbonate formation is dominantly through organic processes (various shell - forming marine organisms are happy to make use of the CO2 dissolved in the ocean), in the early Earth and, presumably, in other Earth - like planets with little or no life the same process can occur inorganically, but somewhat slower, in silicate rock weathering.

Plants are major contributors to the chemical weathering of continental rocks, a key process in the carbon cycle that regulates Earth's atmosphere and climate over millions of years.

The rain then interacts with silicate - rocks and forms carbonate rocks in the silicate weathering process — or, in a planet that is so filled with life as ours, tiny organisms can grab the carbon - dioxide dissolved in the ocean to build shells or coral reefs.

This chemical weathering process is too slow to damp out shorter - term fluctuations, and there are some complexities — glaciation can enhance the mechanical erosion that provides surface area for chemical weathering (some of which may be realized after a time delay — ie when the subsequent warming occurs — dramatically snow in a Snowball Earth scenario, where the frigid conditions essentially shut down all chemical weathering, allowing CO2 to build up to the point where it thaws the equatorial region, at which point runaway albedo feedback drives the Earth into a carbonic acid sauna, which ends via rapid carbonate rock formation), while lower sea level may increase the oxidation of organic C in sediments but also provide more land surface for erosion... etc..

crushing rocks to artificially accelerate the silicate weathering process 3.

Rock weathering to remove CO2 and moss and Lichen growth for removal have not even been included in their models — and there are other natural processes they ignore, but it doesn't matter!

''... Through a series of processes involving, among others, ice ages, ocean algae, and weathering rock, the earth has managed to keep the amount of heat - trapping carbon dioxide in the atmosphere, and hence the temperature, at a relatively stable level.

«The rest is removed by slower processes that take up to several hundreds of thousands of years, including chemical weathering and rock formation.

But it was always at a rate that could easily be accommodated by natural feedback processes if CO2 levels got too high — usually in the form of increased rock weathering through an acceleration of the hydrological cycle.

Erosion - The process of removal and transport of soil and rock by weathering, mass wasting, and the action of streams, glaciers, waves, winds and underground water.

Geologic records indicate that when the increase in atmospheric CO2 is gradual, oceanic pH and carbonate levels remain relatively stable due to processes that occur in equilibrium, such as dissolution of CaCO3 shells, weathering of terrestrial rock, and tectonic processes.

-- Other processes are very slow in change: vegetation area increase / decrease, ocean overturning rate, rock weathering,..

«Enhanced weathering» of minerals is a twist on a slow moving process that naturally turns CO2 in the air into rocks.

Clay is the finest particle breakdown of rock in the weathering process moves from parent material to boulder down to clay (Figure 3).

«Through our work at the NWSC, we have a better understanding of such important processes as surface and subsurface hydrology, physics of flow in reservoir rock, and weather modification and precipitation stimulation,» said William Gern, vice president of research and economic development at the University of Wyoming.

Enhanced weathering aims to hasten that process by milling rock powder and applying it to landscapes.