http://wiki.answers.com/Q/How_deep_was_the_glacial_ice_that_covered_ny_18000_years_ago"
Fjords are estuaries formed by glacial action. They are long, narrow inlets with steep cliffs created by the movement of glaciers. Fjords are typically found in high-latitude regions where glaciers have carved deep valleys into the landscape.
Flooded glacial valleys are valleys carved out by glaciers during the last Ice Age which are now submerged under water. These valleys can form deep fjords, where seawater has filled in the glacially-carved depressions. Examples include the fjords of Norway and Alaska.
A glacier groove is a linear, long, and deep indentation or scratch that is carved into bedrock by the movement of a glacier. These grooves are an important indicator of past glacial activity and can provide insights into the direction and flow of the glacier.
Fjords are long, narrow inlets formed by glacial erosion. They typically have steep, rugged cliffs on their shores and are filled with deep, cold water. Fjords are common in regions where glaciers have advanced and then retreated, leaving behind a U-shaped valley that fills with seawater.
These scratches are evidence of glacial erosion, specifically caused by the movement of rocks embedded in the ice as the glacier advances and retreats. This type of erosion, known as abrasion, leaves distinct marks on the bedrock in the form of gouges and scratches.
3.4 miles deep
The continental shelves were developed in between the glacial periods as the ocean flowed over the continents forming shallow areas along the coasts. The continental shelves developed today were formed like 18000 years ago.
During the Pleistocene epoch, large parts of Britain were covered by ice sheets, with estimates ranging from about 30% to 100% coverage at different times. The last glacial maximum, around 20,000 years ago, saw extensive ice coverage over much of Scotland and northern England, with ice reaching as far south as the Midlands.
The interior plain we see now is covered with vegetation but not to the extent it was pre glacial. The glaciers scrubbed all the loose soil and vegetation from the interior plains and it has taken 4,400 years for some areas to be re-covered. Many desert areas just do not get enough rain to maintain a growth of vegeattion to revitalise the soil so any plants that do spring up after rain lack deep roots and dry out and die off.
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Fjords can take thousands of years to form. They typically develop through a combination of glacial erosion, sea level changes, and geological processes that create deep, narrow inlets over time.
You may be thinking of a fjord (or fiord), a narrow, deep inlet (generally in a coastal landscape) formed by glacial activity.
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The wide gap in the Rocky Mountains is known as the Trench. It is a large, deep valley that runs along the eastern side of the mountain range. It was formed by tectonic forces and glacial activity over millions of years.
hotus land is covered with water.
Fjords are estuaries formed by glacial action. They are long, narrow inlets with steep cliffs created by the movement of glaciers. Fjords are typically found in high-latitude regions where glaciers have carved deep valleys into the landscape.