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A boulder left behind by a retreating glacier is known as an erratic. A glacier is a moving river of ice and snow.
The rock is called a glacial erratic when it is left behind by a glacier, and is of a completely different material composition than the rocks on which it was deposited.
The rock is called a glacial erratic when it is left behind by a glacier, and is of a completely different material composition than the rocks on which it was deposited.
The rock is called a glacial erratic when it is left behind by a glacier, and is of a completely different material composition than the rocks on which it was deposited.
the glacier dropped small rocks as it melted. An erratic is a large boulder left behind after a glacier has melted
Erratic
Erratic
Erratic
A boulder left behind by a retreating glacier is known as an erratic. A glacier is a moving river of ice and snow.
The rock is called a glacial erratic when it is left behind by a glacier, and is of a completely different material composition than the rocks on which it was deposited.
The rock is called a glacial erratic when it is left behind by a glacier, and is of a completely different material composition than the rocks on which it was deposited.
The rock is called a glacial erratic when it is left behind by a glacier, and is of a completely different material composition than the rocks on which it was deposited.
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.
The rock is called a glacial erratic when it is left behind by a glacier, and is of a completely different material composition than the rocks on which it was deposited.
the glacier dropped small rocks as it melted. An erratic is a large boulder left behind after a glacier has melted
the glacier dropped small rocks as it melted. An erratic is a large boulder left behind after a glacier has melted
the glacier dropped small rocks as it melted. An erratic is a large boulder left behind after a glacier has melted