What Do Dense Crystalline Rocks and Shales Have in Common

question 139

Multiple Choice

What do dense crystalline rocks and shales have in common?

• A)The are both deposited in fresh water rivers and lakes.
• B)They are usually made out of sediment sized rock fragments.
• C)They both have low porosity and will be impermeable to oil or water.
• D)They are both too stupid to pass a geology test!

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