Sentences with phrase «rocks over the soil»

By placing chicken wire with the sharp side facing down, lattice fencing, or river rocks over the soil will keep feral cats from using your garden as a litter box.

Not exact matches

Scientists believe that these ions, which the SELENE spacecraft (better known as Kaguya) detected, drifted over geologic time from the outer layers of Earth's atmosphere and became embedded in the moon's regolith, a loose top layer of soil and rock.

In essence, ChemCam observed the process of rocks being ground down to soil over time.

This material — vaporized and molten rock — shoots over the surface, disturbing the upper layer of lunar soil and changing its brightness.

Soil and rocks on the Earth's surface reveal the advance and retreat of glaciers over the land surface, and fossilized pollen traces out rough boundaries of where the climate conditions were right for different species of plants and trees to live.

This involves clear cutting trees and the use of explosives to loosen the rocks and soil that stand guard over the bentonite.

Put some heavy screen over the soil and then cover it with large rocks.

The possible bad news is that any oil or tar balls which ends up under rocks and logs or which is incorporated into marsh soils will be resuspended and sent all over the place if there is a hurricane.

Soil and rocks on the Earth's surface reveal the advance and retreat of glaciers over the land surface, and fossilized pollen traces out rough boundaries of where the climate conditions were right for different species of plants and trees to live.

The MacKenzie River region, which supports one of the world's last major wild rivers, has warmed by 3.1 ° F (1.7 ° C) over the past century.2, 3 This warming has endangered the long - term stability of much of the permafrost — the frozen mix of rock, soil, and ice that underlies and surrounds the river basin3, 3 — raising the risk of erosion, flooding, landslides, and other significant changes to the landscape.2, 3,4,5,6

Stalagmites form slowly over thousands of years, as calcium, carbon and oxygen from water slowly dripping through the soil and rock above the cave builds up into the cone - shaped rocks seen on the cave floor.

Tabulate the CO2 exhalation rates over the last 15,000 years from (i) terrestrial and submarine volcanism (including maars, gas vents, geysers and springs) and calc - silicate mineral formation, and (ii) CH4 oxidation to CO2 derived from CH4 exhalation by terrestrial and submarine volcanism, natural hydrocarbon leakage from sediments and sedimentary rocks, methane hydrates, soils, microbiological decay of plant material, arthropods, ruminants and terrestrial methanogenic bacteria to a depth of 4 km.

Don't put rocks on top of the line as you back fill, if you ever drive over it you can push a rock into your line, car can cause that a foot and half below grade and a large dump truck can push 3 feet down (a rule of thumb around here, but that depends on soil type, rock, etc), but consider that since you are near an alley.

The grass was a constant battle to keep alive between the soil and our doggy friend, and it was near impossible to plant anything due to all the left over construction concrete «rocks» we found.

Next carve out the ground effects of rock and soil, Then paint over the ground with moss greens and browns, and apply small amounts of reindeer moss with some glue on the inside to achieve a realistic effect.