its called a forager
To determine how far a rock or boulder has been moved by a glacier, scientists often examine the rock's shape and striations, which can indicate the direction of glacial flow. Additionally, comparing the rock's composition to the surrounding geology helps identify its origin. By mapping the distribution of similar rocks and using tools like GPS or surveying, researchers can estimate the distance the glacier has transported the boulder. Analyzing sediment layers and glacial deposits also provides insights into the glacier's movement history.
A boulder left behind by a retreating glacier is known as an erratic. A glacier is a moving river of ice and snow.
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An example of a glacier moving a boulder would be when a large rock is picked up by a glacier as it flows downhill, and is transported along with the ice to a new location. This process, known as glacial plucking, occurs when the ice melts and the boulder is deposited on the ground.
its called a forager
A large boulder left behind by a glacier is called a glacial erratic. These erratics are often significantly different from the surrounding rocks, providing clues about the glacier's movement and the rocks it passed over during its journey.
To determine how far a rock or boulder has been moved by a glacier, scientists often examine the rock's shape and striations, which can indicate the direction of glacial flow. Additionally, comparing the rock's composition to the surrounding geology helps identify its origin. By mapping the distribution of similar rocks and using tools like GPS or surveying, researchers can estimate the distance the glacier has transported the boulder. Analyzing sediment layers and glacial deposits also provides insights into the glacier's movement history.
A boulder left behind by a retreating glacier is known as an erratic. A glacier is a moving river of ice and snow.
An erratic boulder is a rock that has been moved and left in position as the glacier recedes.
An isolated boulder left by a glacier is called a glacial erratic. These boulders are often different in composition compared to the surrounding rocks, as they have been transported and deposited by glaciers.
Boulder Glacier is shrinking at an increasing rate, such that it will not be classified as a glacier soon (if not already). See the link below for repeat photos.
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Erratic
Erratic
Erratic
An erratic block.