how does lake form?? and how the water in the lake still remain??

Question

can anybody explain to me how come the lake in santiago,chile suddenly disappear?as what i know,chile is not having drought..??

Answer 1

You need just two things to form a lake: A source of water, and a basin, or depression, where it can collect.

More of the world’s lakes were formed by glaciers than by any other method. During the Ice Age, much of the Northern Hemisphere was covered with great glaciers that cut or enlarged depressions in the earth which later filled with water. These are called glacial lakes.

North America’s Great Lakes are glacial lakes that were carved out of bedrock. Other glacial lakes formed in depressions in the rubble, or “drift,“ deposited by glaciers.

Glacial lakes vary in size from the enormous Great Lakes to the “prairie potholes” strung across North Dakota and neighboring states and provinces. Scotland’s “lochs,“ including the famous Loch Ness, are glacial lakes.

Many alpine lakes—lakes found high on mountain slopes—are glacial lakes; they’re often called tarns in Europe.

Lakes and ponds are also very abundant in many tundra regions, where frozen ground called permafrost keeps water from sinking into the earth. Though Minnesota is nicknamed the Land of 10,000 Lakes, there are far more than that scattered across northern North America and Eurasia. Canada boasts 50% of the world’s lakes!

Barrier lakes are formed by landslides or glacial drift. Such earthen walls sometimes dam former river valleys to form lakes.

Some enormous lakes even formed far away from the great glaciers during the Ice Age. The climate in the Great Basin was much cooler and wetter than it is today, and vast lakes covered much of what are now Nevada and Utah. As the climate became more arid (dry), the lakes began to shrink. As Lake Bonneville shrank, salt was greatly concentrated in the remaining water. Today, we know it as Utah’s Great Salt lake.

Lakes are also common along slow-moving rivers and in low areas near the sea. Portions of meandering rivers that are separated from the main river become isolated lakes known as oxbows.

Tectonic lakes occur in natural fissures. An example is Lake Tanganyika, which fills a depression in Africa’s Great Rift Valley—a region where the continent is being pulled apart.

Karst lakes form in areas where limestone is dissolved to form cavities and depressions; they are common in Florida and Appalachia. Groundwater may even dissolve limestone to form underground lakes.

Lakes can also form in volcanic calderas. Among the most famous crater lakes is Oregon’s Crater Lake. It’s fabulously clear, deep-blue waters are 1,932 feet (589 meters) deep!

Ocean currents may deposit sediments along a shoreline, cutting off bays which then become coastal lagoons.

Many artificial lakes have been created as sources of hydroelectricity, water for irrigation and other uses.

As to your other question, lake levels are dependent upon many factors including, but not limited to, weather patterns, perched groundwater water held in sands below the surface but typically are separated from deeper groundwater by layers of clay or even rock. and deep aquifer sources.

Aside from weather patterns, there are a few other naturally occurring factors that can affect water levels. Geology can have a lot to do with a lake’s ability to “hold” water. For instance, lakes with sandy or porous soils are more susceptible to losing water through seepage, whereas clay soils can act as a barrier and help lakes retain water.

Fluctuations in lake levels may also be the result of human activity such as water withdrawal for drinking and irrigation, channelization, dams, dredge and fill projects and shoreline development.

Answer 2

most lakes are man made, but there are plenty of naturally occuring ones as well. man made lakes are formed when a river is damed up and the water begins to collect in the surrounding valley or low lying area. the water appears to stay in the lake because the majority of it does. some water seeps into the ground and some is evaporated, but this escaping water is quickly replaced my rain and other streams and rivers that feed the lake.

Answer 3

Natural lakes are depressions in the ground formed by one reason or another that are filled with water either by rain or receding floods or rivers. In the case of glacial lakes, chunks of ice cause depressions and then the melt water fills the depression.

Answer 4

the earths crust is made of differing materials, some more dense than others.

Water fill the lower areas.

If the area is porous, the water drains. If not it forms a pond or a lake.

Answer 5

rain or work-trucks
the water stays it because it keeps raining, otherwise the lake will start to dry up

also lakes are usually fed by natural springs and creeks, and streams, and rivers, so they have more than one source, although those sources except for natural springs are also fed by rain

Answer 6

A natural or artificial lake? Because there is a difference.