Sentences with phrase «by erosion»

More common are the dome - shaped lava formations the size of houses, and the numerous arches formed by the erosion of lava pillars.

Cotton, traditionally a rain - fed crop, is threatened by erosion and by irregular rains.

This break was probably was formed by erosion during the last low sea level stand (while sea level was much lower and the reef was exposed as dry land).

His often time - limited artworks are inspired by the erosion of the natural landscape.

Once important ceremonial sites for ancient Mayans, these cenotes were created by erosion in the limestone that forms the Yucatan Peninsula.

Although not a typical crater formed by volcanic activity, the gigantic Haleakala Crater was created by erosion of the entire volcanic mountain top and is one of the most famous features of the park.

The burrows, once refilled with sediments, fossilized, and then exposed by erosion, can end up looking like wiggly sticks.»

The park has an incredible 2,000 natural arches in its sandstone rock, formed by erosion over millions of years.

The signers of the statement «are particularly troubled by the erosion of American governmental support for Israel evident» in the U.S. decision to...

But if we compare these gains with the permanent loss to those peoples of the services performed by the forests, the damage to the rivers and to the agricultural lands by the erosion of the mountainsides, the loss of fisheries, and so forth, one can hardly judge that the lot of the people has been improved.

It's astonishingly rich in artifacts: When the first digs began in 1961, British archaeologist James Mellaart «chose his excavation area based on where wall paintings had been revealed by erosion and were just sticking up from the ground,» says current excavation director Ian Hodder.

The dunes are thought to be hydrocarbons based on their dark color in radar images, which means they are probably not produced by erosion and fragmentation of the moon's water - based bedrock.

Unlike other materials that are destroyed over time by erosion and subduction, certain zircons are nearly as old as the Earth itself.

Lesson 3 - Processes of Glaciation Lesson 4 - Glacial landforms shaped by erosion.

To determine how much carbon is released by erosion, the researchers combined their soil organic carbon calculations with long - term erosion rates (the region loses a mean of 0.7 meters of coastline per year).

However, the geological wonder also includes the Giant's Organ (60 regular, 12 metre high columns) and Chimney Tops (a number of columns that have been separated from the cliffs by erosion).

If they experience themselves always as losers, they may become wearied by the erosions of adversity.

Unlike the devitalized, there is no sense of «barren gullies in their lives left by the erosion of earlier satisfactions.»

Modern culture, which coincides in Habermas's view with the period since the Reformation, is typified chiefly by an erosion of confidence in the validity of higher - order principles.

The loss of fertile top soil by erosion results in a lower yield capacity on the onehand and in a undesired transfer of nutrients, pesticides and sediments in surface water on the other.

The depths are generally too great to support a munificence of coral like the Caribbean shoals; the land is still being changed too much by erosion and flowing lava to encourage a fringing reef.

Unlike natural bridges on Earth, which form largely by erosion from wind and water, these lunar bridges probably formed as a result of an impact in the last billion years, says Mark Robinson, a planetary geologist at Arizona State University in Tempe and principal investigator for LRO's camera.

Last May, a Siberian reindeer herder named Yuri Khudi chanced upon the world's most intact mammoth remains, unearthed by erosion of a riverbank, and promptly turned them over to the natural history museum in the Russian town of Salekhard.

In the new work, Green and his team also investigated the Punchbowl Fault, an ancestral branch of the San Andreas Fault that has been exhumed by erosion from several kilometers depth, and found nanometric materials within the fault — as predicted by their model.

A year later, the liquefaction features had disappeared, erased by erosion and new vegetation.

«Life in ancient oceans enabled by erosion from land.»

The gradually increasing rate of sediment accumulation possibly stems from the long time needed for the material to hopscotch its way across the continent, being dumped in one spot and then remobilized by erosion later, says Carina Hoorn, a geologist at the University of Amsterdam.

England's fate as an island was sealed by erosion from glacial floods that carved the English Channel.

Earth's crust has been affected severely by erosion, fractionation, and other geologic events, so that its present varied composition offers few clues as to its early stages.

Some even speculate that the expansion into grocery and mass was necessitated by erosion in Blue Buffalo's market share in the pet specialty channel as several big chains have been lowering their emphasis on the brand in their stores.

A few kilometers south - east of Antequera lies the natural phenomenon of El Torcal: limestone mountains which have been shaped into bizarre formations by erosion.

Imagine yourself rappelling, rock climbing, doing canopy, Tarzan swings, and hanging bridges, all set in the majestic canyon made by the erosion of the Río Blanco during millions of years.

Approximately ten miles long and 3,000 feet deep, Waimea (which is Hawaiian for «reddish water») was formed millions of years ago by erosion from the Waimea River, along with massive amounts of rainfall.

(Salvatore Arancio / A View Of A Cave Cut By Erosion In the Very Thick Layers of Ash / photo - etching on paper - 2006)

Here's Denise Holland's description of the research project, which is aimed at improving how computer simulations of the climate and ocean project sea level changes driven by the erosion of ice sheets:

That is why Sterling North could say, «Every time you see a dust cloud, a muddy stream, a field scarred by erosions, or a channel choked with silt, you are witnessing the passing of American democracy.»

A large share of the world's 852 million hungry people live on land with soils worn thin by erosion.

It appears that the warming seas around Antarctica are causing an increase in snowfall over the ice - cap, and the increased snowfall on top roughly cancels out the decrease of ice volume caused by erosion at the edges.

Unless the rocks are remelted by the heat from the planet's interior or reworked by erosion, they retain this signature regardless of whether they change position or not.

Much of the sedimentary record of the atmosphere, oceans, biota, and crust of the early Earth has been obliterated by erosion, metamorphosis, and subduction.

Access to justice has been seriously curtailed by the erosion of legal aid and the underfunding of our judicial institutions.

The plan: restore a 4 - acre park on the Ohio River that had been gnawed in half by erosion; create a plaza connecting the park to the downtown; establish a regional farmer's market in the plaza; build a new convention center; and convert a federal highway that bisected downtown into a local street.

A Government guidance note on coastal planning, issued in September, says that new building developments away from existing urban areas should not in general be allowed on coasts threatened by erosion.

In one meeting, he learned that parts of Alaska are «already being destroyed by erosion, flooding and other forces».