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Explanation: Six years after the fact, but hopefully if someone is researching this term they'll find this. The proper term in English is connate water:
"Water trapped in the pores of a rock during formation of the rock. The chemistry of connate water can change in composition throughout the history of the rock. Connate water can be dense and saline compared with seawater. Formation water, or interstitial water, in contrast, is simply water found in the pore spaces of a rock, and might not have been present when the rock was formed. Connate water is also described as fossil water." http://www.glossary.oilfield.slb.com/en/Terms.aspx?LookIn=te...
Kathryn Litherland United States Local time: 13:22 Native speaker of: English PRO pts in category: 20
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