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What is a large boulder that is left behind by a glacier and deposited among rocks called?
A large boulder left behind by a glacier and deposited among other rocks is called a "glacial erratic." These massive stones are often transported over long distances by glacial ice and can differ significantly in composition from the surrounding bedrock. When glaciers melt, these erratics become stranded as the ice retreats, providing important clues about past glacial activity and the geological history of an area.
The direction of movement of a glacier is best indicated by the?
The direction of movement of a glacier is best indicated by the presence of striations on the underlying bedrock, the alignment of glacial erratics (rocks different from the surrounding bedrock), and the formation of drumlins (elongated hills of glacial sediment). Additionally, the shape of the glacier's terminus and the distribution of moraines can also provide clues about its movement direction.
What is a huge boulder carried by a glacier called?
its called a forager
What is the gouging of bedrock by rock fragments dragged by glaciers results?
The gouging of bedrock by rock fragments dragged by glaciers results in the formation of grooves, scratches, and striations on the surface of the bedrock. These features, known as glacial striations, provide evidence of the direction and movement of past glaciers. These marks can also help geologists determine the extent and timing of glacial activity in an area.
When a glacier leaves behind a rock that is a completely different material composition than the formation it is deposited upon it is called what?
Glacial till is unsorted sediment deposited directly by glacial ice.
What caused the glacial grooves?
Glacial grooves were caused by the movement of rocks and debris embedded in the base of a glacier as it moved over bedrock. The pressure and abrasion from the rocks scraping against the bedrock created the grooves.
What is a large boulder that is left behind by a glacier and deposited among rocks called?
A large boulder left behind by a glacier and deposited among other rocks is called a "glacial erratic." These massive stones are often transported over long distances by glacial ice and can differ significantly in composition from the surrounding bedrock. When glaciers melt, these erratics become stranded as the ice retreats, providing important clues about past glacial activity and the geological history of an area.
What causes glacial groove?
Glacial grooves are caused by the ice picking up boulders and scraping them across the bedrock.
The glacial scouring by bedrock embedded in ice is erosion by?
The glacial scouring by bedrock embedded in ice is erosion by abrasion. This process occurs as the moving ice carries and grinds rocks against the underlying bedrock, wearing it down over time.
The direction of movement of a glacier is best indicated by the?
The direction of movement of a glacier is best indicated by the presence of striations on the underlying bedrock, the alignment of glacial erratics (rocks different from the surrounding bedrock), and the formation of drumlins (elongated hills of glacial sediment). Additionally, the shape of the glacier's terminus and the distribution of moraines can also provide clues about its movement direction.
Glacial striations gouged into bedrock allow geologists to understand what?
Glacial striations gouged into bedrock allow geologists to understand the direction of glacial movement and the force of the ice. This information helps reconstruct past glacial activity, study ice flow dynamics, and track changes in climate over time.
What is an erratic boulder?
An erratic boulder is a boulder of rock which is of a different type than the local rocks. Erratic boulders are ofter more correctly termed glacial erractics as they were generally picked up, transported (often many hundreds of miles) and then finally deposited by melting glaciers.
An isolated boulder left behind by a glacier?
This isolated boulder left behind by a glacier is called a glacial erratic. Glacial erratics are large rocks that are carried by glaciers and deposited in a different location when the glacier melts. They can vary in size from small pebbles to massive boulders and are often composed of different rock types than the surrounding landscape.
What is a glacial groove?
A glacial groove is a long, linear indentation or scratch in bedrock that is formed by the movement of a glacier. As the glacier flows over the rock surface, it picks up and carries rock debris, causing abrasion and carving grooves into the bedrock. These grooves provide evidence of past glacial activity and can help scientists understand the direction and extent of glacial movement.
What is a huge boulder carried by a glacier called?
its called a forager
Which erosional feature most likely formed on the surface of the bedrock under the glacial ice?
Striations would most likely form on the surface of the bedrock under the glacial ice. Striations are caused by the movement of large rocks embedded in the base of a glacier scraping across the bedrock, resulting in long, parallel grooves being carved into the bedrock surface.
U-shaped valleys and parallel grooves in bedrock are characteristics of erosion by?
glacial ice
