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Continental Intercalary
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Continental Intercalary

rock stratum, Africa

Learn about this topic in these articles:

groundwater resources

  • A map of the continent of Africa, including its countries, boundaries, and capital cities. It also shows parts of Europe and Asia and surrounding bodies of water, including the Atlantic Ocean, Mediterranean Sea, Red Sea, and Indian Ocean.
    In Africa: Groundwater of Africa

    … a rock stratum called the Continental Intercalary series, which dates from the early Cretaceous Period and which includes the Nubian sandstones of southern Egypt, is the most important water-bearing layer. It extends over very large areas and reaches a thickness of more than 3,000 feet; in Egypt and Algeria it…

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