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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.
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Which statement presents the best evidence that a boulder-sized rock is an erratic?
The boulder differs in composition from the underlying bedrock.
What is an isolated boulder left by a glacier called?
It's called an erratic. See http://en.wikipedia.org/wiki/Glacial_erratic.
How would an erratic boulder provide evidence of the flood?
Erratic boulders can provide evidence of a flood because of the distance that is measured from where they were originally placed. This could only be through a strong current of water as they are usually displaced and out of place.
How are a moraine and an erratic different?
A moraine is a pile of rocks and dirt deposited in a heap, usually at the end of a glacier. An erratic is a large stone or boulder that has been deposited in a similar way when glaciers retreated, being of a totally different type of rock to that on which it was deposited.
Where are erratic?
Erratic adj irregular, inconsistent, wandering around. Erratic noun an erratic is a rock found where it does not belong. Many millenia ago it was carried on a glacier from where it originated to where it was found.
What is a exampl of a glacier moving a boulder?
An erratic block.
What is an example of a glacier moving boulder?
An erratic block.
Which statement presents the best evidence that a boulder-sized rock is an erratic?
The boulder differs in composition from the underlying bedrock.
A large boulder that is left behind by a glacier is called a what?
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.
How could a large rock be in an area surrounded by nothing?
An isolated large boulder (known as an 'erratic boulder') standing in the open, was left there by a glacier, after the ice retreated at the end of an ice age.. They are known as an 'erratic'.
Boulder left behind by a retreating glacier?
A boulder left behind by a retreating glacier is known as an erratic. A glacier is a moving river of ice and snow.
A huge boulder resting on a completely different type of bedrock is glacial zones is?
Glacial Erratic.
A large boulder that is left behind by a glacier and deposited among rocks of a different type is called a?
Erratic
What is a large Boulder that is left behind by a glacier and deposited among rocks of a different type called?
Erratic
What is a large boulder that is left behind by a glacier and deposited among rocks of different type is called a?
Erratic
What is an isolated boulder left by a glacier called?
It's called an erratic. See http://en.wikipedia.org/wiki/Glacial_erratic.
Action of rock being placed somewhere else?
An erratic boulder is a rock that has been moved and left in position as the glacier recedes.
