How long has fossil water been around?



  1. 0 Votes

    Fossil water can rest underground in aquifers for thousands, sometimes even millions, of years. This occurs when changes in the surrounding landscape close the aquifer and prevent it from replenishing itself from precipitation. The water in the aquifer become trapped inside and is known as fossil water. Fossil water aquifers were first discovered and explored in the 19th century but have only been intensively mined within the last few decades. The oldest fossil water in the United States is in the Ogallala Aquifer, which was formed between 2-6 million years ago.

  2. 0 Votes

    While the rocks of the Ogallala Aquifer were deposited and formed 2-6 million years ago, for the most part the water in the aquifer is much younger, dating to the latter part of the most recent glacial period, 10,000 to 40,000 years ago.

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